diff options
Diffstat (limited to 'target/linux/uml')
3 files changed, 0 insertions, 4149 deletions
diff --git a/target/linux/uml/patches-3.14/001-fix_make_headers_install.patch b/target/linux/uml/patches-3.14/001-fix_make_headers_install.patch deleted file mode 100644 index 9f3e52124a..0000000000 --- a/target/linux/uml/patches-3.14/001-fix_make_headers_install.patch +++ /dev/null @@ -1,3814 +0,0 @@ -From faec6b6c2cc0219e74569c13f581fc11d8f3fc57 Mon Sep 17 00:00:00 2001 -From: Florian Fainelli <florian@openwrt.org> -Date: Sun, 17 Mar 2013 20:12:10 +0100 -Subject: [PATCH] UM: fix make headers_install after UAPI header installation - -Commit 10b63956 (UAPI: Plumb the UAPI Kbuilds into the user -header installation and checking) breaks UML make headers_install with -the following: - -$ ARCH=um make headers_install - CHK include/generated/uapi/linux/version.h - UPD include/generated/uapi/linux/version.h - HOSTCC scripts/basic/fixdep - WRAP arch/um/include/generated/asm/bug.h -[snip] - WRAP arch/um/include/generated/asm/trace_clock.h - SYSHDR arch/x86/syscalls/../include/generated/uapi/asm/unistd_32.h - SYSHDR arch/x86/syscalls/../include/generated/uapi/asm/unistd_64.h - SYSHDR arch/x86/syscalls/../include/generated/uapi/asm/unistd_x32.h - SYSTBL arch/x86/syscalls/../include/generated/asm/syscalls_32.h - HOSTCC scripts/unifdef -Makefile:912: *** Headers not exportable for the um architecture. Stop. -zsh: exit 2 ARCH=um make headers_install - -The reason for that is because the top-level Makefile does the -following: - $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ - $(error Headers not exportable for the $(SRCARCH) architecture)) - -we end-up in the else part of the $(if) statement because UML still uses -the old path in arch/um/include/asm/Kbuild. This patch fixes the issue -by moving the header files to be in arch/um/include/uapi/asm/ thus -making headers_install (and other make targets checking for uapi) to -succeed. - -Signed-off-by: Florian Fainelli <florian@openwrt.org> ---- -Richard, this has been broken for 3.7+ onwards, if you want me to send -you separate patches for 3.7 and 3.8 let me know. Thanks! - - arch/um/include/{ => uapi}/asm/Kbuild | 0 - arch/um/include/{ => uapi}/asm/a.out-core.h | 0 - arch/um/include/{ => uapi}/asm/bugs.h | 0 - arch/um/include/{ => uapi}/asm/cache.h | 0 - arch/um/include/{ => uapi}/asm/common.lds.S | 0 - arch/um/include/{ => uapi}/asm/dma.h | 0 - arch/um/include/{ => uapi}/asm/fixmap.h | 0 - arch/um/include/{ => uapi}/asm/irq.h | 0 - arch/um/include/{ => uapi}/asm/irqflags.h | 0 - arch/um/include/{ => uapi}/asm/kmap_types.h | 0 - arch/um/include/{ => uapi}/asm/kvm_para.h | 0 - arch/um/include/{ => uapi}/asm/mmu.h | 0 - arch/um/include/{ => uapi}/asm/mmu_context.h | 0 - arch/um/include/{ => uapi}/asm/page.h | 0 - arch/um/include/{ => uapi}/asm/pgalloc.h | 0 - arch/um/include/{ => uapi}/asm/pgtable-2level.h | 0 - arch/um/include/{ => uapi}/asm/pgtable-3level.h | 0 - arch/um/include/{ => uapi}/asm/pgtable.h | 0 - arch/um/include/{ => uapi}/asm/processor-generic.h | 0 - arch/um/include/{ => uapi}/asm/ptrace-generic.h | 0 - arch/um/include/{ => uapi}/asm/setup.h | 0 - arch/um/include/{ => uapi}/asm/smp.h | 0 - arch/um/include/{ => uapi}/asm/sysrq.h | 0 - arch/um/include/{ => uapi}/asm/thread_info.h | 0 - arch/um/include/{ => uapi}/asm/timex.h | 0 - arch/um/include/{ => uapi}/asm/tlb.h | 0 - arch/um/include/{ => uapi}/asm/tlbflush.h | 0 - arch/um/include/{ => uapi}/asm/uaccess.h | 0 - 28 files changed, 0 insertions(+), 0 deletions(-) - rename arch/um/include/{ => uapi}/asm/Kbuild (100%) - rename arch/um/include/{ => uapi}/asm/a.out-core.h (100%) - rename arch/um/include/{ => uapi}/asm/bugs.h (100%) - rename arch/um/include/{ => uapi}/asm/cache.h (100%) - rename arch/um/include/{ => uapi}/asm/common.lds.S (100%) - rename arch/um/include/{ => uapi}/asm/dma.h (100%) - rename arch/um/include/{ => uapi}/asm/fixmap.h (100%) - rename arch/um/include/{ => uapi}/asm/irq.h (100%) - rename arch/um/include/{ => uapi}/asm/irqflags.h (100%) - rename arch/um/include/{ => uapi}/asm/kmap_types.h (100%) - rename arch/um/include/{ => uapi}/asm/kvm_para.h (100%) - rename arch/um/include/{ => uapi}/asm/mmu.h (100%) - rename arch/um/include/{ => uapi}/asm/mmu_context.h (100%) - rename arch/um/include/{ => uapi}/asm/page.h (100%) - rename arch/um/include/{ => uapi}/asm/pgalloc.h (100%) - rename arch/um/include/{ => uapi}/asm/pgtable-2level.h (100%) - rename arch/um/include/{ => uapi}/asm/pgtable-3level.h (100%) - rename arch/um/include/{ => uapi}/asm/pgtable.h (100%) - rename arch/um/include/{ => uapi}/asm/processor-generic.h (100%) - rename arch/um/include/{ => uapi}/asm/ptrace-generic.h (100%) - rename arch/um/include/{ => uapi}/asm/setup.h (100%) - rename arch/um/include/{ => uapi}/asm/smp.h (100%) - rename arch/um/include/{ => uapi}/asm/sysrq.h (100%) - rename arch/um/include/{ => uapi}/asm/thread_info.h (100%) - rename arch/um/include/{ => uapi}/asm/timex.h (100%) - rename arch/um/include/{ => uapi}/asm/tlb.h (100%) - rename arch/um/include/{ => uapi}/asm/tlbflush.h (100%) - rename arch/um/include/{ => uapi}/asm/uaccess.h (100%) - ---- a/arch/um/include/asm/Kbuild -+++ /dev/null -@@ -1,8 +0,0 @@ --generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h --generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h --generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h --generic-y += switch_to.h clkdev.h --generic-y += trace_clock.h --generic-y += preempt.h --generic-y += hash.h --generic-y += barrier.h ---- a/arch/um/include/asm/a.out-core.h -+++ /dev/null -@@ -1,27 +0,0 @@ --/* a.out coredump register dumper -- * -- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -- * Written by David Howells (dhowells@redhat.com) -- * -- * This program is free software; you can redistribute it and/or -- * modify it under the terms of the GNU General Public Licence -- * as published by the Free Software Foundation; either version -- * 2 of the Licence, or (at your option) any later version. -- */ -- --#ifndef __UM_A_OUT_CORE_H --#define __UM_A_OUT_CORE_H -- --#ifdef __KERNEL__ -- --#include <linux/user.h> -- --/* -- * fill in the user structure for an a.out core dump -- */ --static inline void aout_dump_thread(struct pt_regs *regs, struct user *u) --{ --} -- --#endif /* __KERNEL__ */ --#endif /* __UM_A_OUT_CORE_H */ ---- a/arch/um/include/asm/bugs.h -+++ /dev/null -@@ -1,6 +0,0 @@ --#ifndef __UM_BUGS_H --#define __UM_BUGS_H -- --void check_bugs(void); -- --#endif ---- a/arch/um/include/asm/cache.h -+++ /dev/null -@@ -1,17 +0,0 @@ --#ifndef __UM_CACHE_H --#define __UM_CACHE_H -- -- --#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) --# define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) --#elif defined(CONFIG_UML_X86) /* 64-bit */ --# define L1_CACHE_SHIFT 6 /* Should be 7 on Intel */ --#else --/* XXX: this was taken from x86, now it's completely random. Luckily only -- * affects SMP padding. */ --# define L1_CACHE_SHIFT 5 --#endif -- --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -- --#endif ---- a/arch/um/include/asm/common.lds.S -+++ /dev/null -@@ -1,107 +0,0 @@ --#include <asm-generic/vmlinux.lds.h> -- -- .fini : { *(.fini) } =0x9090 -- _etext = .; -- PROVIDE (etext = .); -- -- . = ALIGN(4096); -- _sdata = .; -- PROVIDE (sdata = .); -- -- RODATA -- -- .unprotected : { *(.unprotected) } -- . = ALIGN(4096); -- PROVIDE (_unprotected_end = .); -- -- . = ALIGN(4096); -- .note : { *(.note.*) } -- EXCEPTION_TABLE(0) -- -- BUG_TABLE -- -- .uml.setup.init : { -- __uml_setup_start = .; -- *(.uml.setup.init) -- __uml_setup_end = .; -- } -- -- .uml.help.init : { -- __uml_help_start = .; -- *(.uml.help.init) -- __uml_help_end = .; -- } -- -- .uml.postsetup.init : { -- __uml_postsetup_start = .; -- *(.uml.postsetup.init) -- __uml_postsetup_end = .; -- } -- -- .init.setup : { -- INIT_SETUP(0) -- } -- -- PERCPU_SECTION(32) -- -- .initcall.init : { -- INIT_CALLS -- } -- -- .con_initcall.init : { -- CON_INITCALL -- } -- -- .uml.initcall.init : { -- __uml_initcall_start = .; -- *(.uml.initcall.init) -- __uml_initcall_end = .; -- } -- -- SECURITY_INIT -- -- .exitcall : { -- __exitcall_begin = .; -- *(.exitcall.exit) -- __exitcall_end = .; -- } -- -- .uml.exitcall : { -- __uml_exitcall_begin = .; -- *(.uml.exitcall.exit) -- __uml_exitcall_end = .; -- } -- -- . = ALIGN(4); -- .altinstructions : { -- __alt_instructions = .; -- *(.altinstructions) -- __alt_instructions_end = .; -- } -- .altinstr_replacement : { *(.altinstr_replacement) } -- /* .exit.text is discard at runtime, not link time, to deal with references -- from .altinstructions and .eh_frame */ -- .exit.text : { *(.exit.text) } -- .exit.data : { *(.exit.data) } -- -- .preinit_array : { -- __preinit_array_start = .; -- *(.preinit_array) -- __preinit_array_end = .; -- } -- .init_array : { -- __init_array_start = .; -- *(.init_array) -- __init_array_end = .; -- } -- .fini_array : { -- __fini_array_start = .; -- *(.fini_array) -- __fini_array_end = .; -- } -- -- . = ALIGN(4096); -- .init.ramfs : { -- INIT_RAM_FS -- } -- ---- a/arch/um/include/asm/dma.h -+++ /dev/null -@@ -1,10 +0,0 @@ --#ifndef __UM_DMA_H --#define __UM_DMA_H -- --#include <asm/io.h> -- --extern unsigned long uml_physmem; -- --#define MAX_DMA_ADDRESS (uml_physmem) -- --#endif ---- a/arch/um/include/asm/fixmap.h -+++ /dev/null -@@ -1,60 +0,0 @@ --#ifndef __UM_FIXMAP_H --#define __UM_FIXMAP_H -- --#include <asm/processor.h> --#include <asm/kmap_types.h> --#include <asm/archparam.h> --#include <asm/page.h> --#include <linux/threads.h> -- --/* -- * Here we define all the compile-time 'special' virtual -- * addresses. The point is to have a constant address at -- * compile time, but to set the physical address only -- * in the boot process. We allocate these special addresses -- * from the end of virtual memory (0xfffff000) backwards. -- * Also this lets us do fail-safe vmalloc(), we -- * can guarantee that these special addresses and -- * vmalloc()-ed addresses never overlap. -- * -- * these 'compile-time allocated' memory buffers are -- * fixed-size 4k pages. (or larger if used with an increment -- * highger than 1) use fixmap_set(idx,phys) to associate -- * physical memory with fixmap indices. -- * -- * TLB entries of such buffers will not be flushed across -- * task switches. -- */ -- --/* -- * on UP currently we will have no trace of the fixmap mechanizm, -- * no page table allocations, etc. This might change in the -- * future, say framebuffers for the console driver(s) could be -- * fix-mapped? -- */ --enum fixed_addresses { --#ifdef CONFIG_HIGHMEM -- FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ -- FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, --#endif -- __end_of_fixed_addresses --}; -- --extern void __set_fixmap (enum fixed_addresses idx, -- unsigned long phys, pgprot_t flags); -- --/* -- * used by vmalloc.c. -- * -- * Leave one empty page between vmalloc'ed areas and -- * the start of the fixmap, and leave one page empty -- * at the top of mem.. -- */ -- --#define FIXADDR_TOP (TASK_SIZE - 2 * PAGE_SIZE) --#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) --#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) -- --#include <asm-generic/fixmap.h> -- --#endif ---- a/arch/um/include/asm/irq.h -+++ /dev/null -@@ -1,23 +0,0 @@ --#ifndef __UM_IRQ_H --#define __UM_IRQ_H -- --#define TIMER_IRQ 0 --#define UMN_IRQ 1 --#define CONSOLE_IRQ 2 --#define CONSOLE_WRITE_IRQ 3 --#define UBD_IRQ 4 --#define UM_ETH_IRQ 5 --#define SSL_IRQ 6 --#define SSL_WRITE_IRQ 7 --#define ACCEPT_IRQ 8 --#define MCONSOLE_IRQ 9 --#define WINCH_IRQ 10 --#define SIGIO_WRITE_IRQ 11 --#define TELNETD_IRQ 12 --#define XTERM_IRQ 13 --#define RANDOM_IRQ 14 -- --#define LAST_IRQ RANDOM_IRQ --#define NR_IRQS (LAST_IRQ + 1) -- --#endif ---- a/arch/um/include/asm/irqflags.h -+++ /dev/null -@@ -1,42 +0,0 @@ --#ifndef __UM_IRQFLAGS_H --#define __UM_IRQFLAGS_H -- --extern int get_signals(void); --extern int set_signals(int enable); --extern void block_signals(void); --extern void unblock_signals(void); -- --static inline unsigned long arch_local_save_flags(void) --{ -- return get_signals(); --} -- --static inline void arch_local_irq_restore(unsigned long flags) --{ -- set_signals(flags); --} -- --static inline void arch_local_irq_enable(void) --{ -- unblock_signals(); --} -- --static inline void arch_local_irq_disable(void) --{ -- block_signals(); --} -- --static inline unsigned long arch_local_irq_save(void) --{ -- unsigned long flags; -- flags = arch_local_save_flags(); -- arch_local_irq_disable(); -- return flags; --} -- --static inline bool arch_irqs_disabled(void) --{ -- return arch_local_save_flags() == 0; --} -- --#endif ---- a/arch/um/include/asm/kmap_types.h -+++ /dev/null -@@ -1,13 +0,0 @@ --/* -- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_KMAP_TYPES_H --#define __UM_KMAP_TYPES_H -- --/* No more #include "asm/arch/kmap_types.h" ! */ -- --#define KM_TYPE_NR 14 -- --#endif ---- a/arch/um/include/asm/kvm_para.h -+++ /dev/null -@@ -1 +0,0 @@ --#include <asm-generic/kvm_para.h> ---- a/arch/um/include/asm/mmu.h -+++ /dev/null -@@ -1,24 +0,0 @@ --/* -- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __ARCH_UM_MMU_H --#define __ARCH_UM_MMU_H -- --#include <mm_id.h> --#include <asm/mm_context.h> -- --typedef struct mm_context { -- struct mm_id id; -- struct uml_arch_mm_context arch; -- struct page *stub_pages[2]; --} mm_context_t; -- --extern void __switch_mm(struct mm_id * mm_idp); -- --/* Avoid tangled inclusion with asm/ldt.h */ --extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm); --extern void free_ldt(struct mm_context *mm); -- --#endif ---- a/arch/um/include/asm/mmu_context.h -+++ /dev/null -@@ -1,58 +0,0 @@ --/* -- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_MMU_CONTEXT_H --#define __UM_MMU_CONTEXT_H -- --#include <linux/sched.h> --#include <asm/mmu.h> -- --extern void uml_setup_stubs(struct mm_struct *mm); --extern void arch_exit_mmap(struct mm_struct *mm); -- --#define deactivate_mm(tsk,mm) do { } while (0) -- --extern void force_flush_all(void); -- --static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) --{ -- /* -- * This is called by fs/exec.c and sys_unshare() -- * when the new ->mm is used for the first time. -- */ -- __switch_mm(&new->context.id); -- down_write(&new->mmap_sem); -- uml_setup_stubs(new); -- up_write(&new->mmap_sem); --} -- --static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, -- struct task_struct *tsk) --{ -- unsigned cpu = smp_processor_id(); -- -- if(prev != next){ -- cpumask_clear_cpu(cpu, mm_cpumask(prev)); -- cpumask_set_cpu(cpu, mm_cpumask(next)); -- if(next != &init_mm) -- __switch_mm(&next->context.id); -- } --} -- --static inline void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) --{ -- uml_setup_stubs(mm); --} -- --static inline void enter_lazy_tlb(struct mm_struct *mm, -- struct task_struct *tsk) --{ --} -- --extern int init_new_context(struct task_struct *task, struct mm_struct *mm); -- --extern void destroy_context(struct mm_struct *mm); -- --#endif ---- a/arch/um/include/asm/page.h -+++ /dev/null -@@ -1,122 +0,0 @@ --/* -- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com) -- * Copyright 2003 PathScale, Inc. -- * Licensed under the GPL -- */ -- --#ifndef __UM_PAGE_H --#define __UM_PAGE_H -- --#include <linux/const.h> -- --/* PAGE_SHIFT determines the page size */ --#define PAGE_SHIFT 12 --#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) --#define PAGE_MASK (~(PAGE_SIZE-1)) -- --#ifndef __ASSEMBLY__ -- --struct page; -- --#include <linux/types.h> --#include <asm/vm-flags.h> -- --/* -- * These are used to make use of C type-checking.. -- */ -- --#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) --#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) -- --#define clear_user_page(page, vaddr, pg) clear_page(page) --#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -- --#if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT) -- --typedef struct { unsigned long pte_low, pte_high; } pte_t; --typedef struct { unsigned long pmd; } pmd_t; --typedef struct { unsigned long pgd; } pgd_t; --#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32)) -- --#define pte_get_bits(pte, bits) ((pte).pte_low & (bits)) --#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits)) --#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits)) --#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \ -- smp_wmb(); \ -- (to).pte_low = (from).pte_low; }) --#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high) --#define pte_set_val(pte, phys, prot) \ -- ({ (pte).pte_high = (phys) >> 32; \ -- (pte).pte_low = (phys) | pgprot_val(prot); }) -- --#define pmd_val(x) ((x).pmd) --#define __pmd(x) ((pmd_t) { (x) } ) -- --typedef unsigned long long pfn_t; --typedef unsigned long long phys_t; -- --#else -- --typedef struct { unsigned long pte; } pte_t; --typedef struct { unsigned long pgd; } pgd_t; -- --#ifdef CONFIG_3_LEVEL_PGTABLES --typedef struct { unsigned long pmd; } pmd_t; --#define pmd_val(x) ((x).pmd) --#define __pmd(x) ((pmd_t) { (x) } ) --#endif -- --#define pte_val(x) ((x).pte) -- -- --#define pte_get_bits(p, bits) ((p).pte & (bits)) --#define pte_set_bits(p, bits) ((p).pte |= (bits)) --#define pte_clear_bits(p, bits) ((p).pte &= ~(bits)) --#define pte_copy(to, from) ((to).pte = (from).pte) --#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE)) --#define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot)) -- --typedef unsigned long pfn_t; --typedef unsigned long phys_t; -- --#endif -- --typedef struct { unsigned long pgprot; } pgprot_t; -- --typedef struct page *pgtable_t; -- --#define pgd_val(x) ((x).pgd) --#define pgprot_val(x) ((x).pgprot) -- --#define __pte(x) ((pte_t) { (x) } ) --#define __pgd(x) ((pgd_t) { (x) } ) --#define __pgprot(x) ((pgprot_t) { (x) } ) -- --extern unsigned long uml_physmem; -- --#define PAGE_OFFSET (uml_physmem) --#define KERNELBASE PAGE_OFFSET -- --#define __va_space (8*1024*1024) -- --#include <mem.h> -- --/* Cast to unsigned long before casting to void * to avoid a warning from -- * mmap_kmem about cutting a long long down to a void *. Not sure that -- * casting is the right thing, but 32-bit UML can't have 64-bit virtual -- * addresses -- */ --#define __pa(virt) to_phys((void *) (unsigned long) (virt)) --#define __va(phys) to_virt((unsigned long) (phys)) -- --#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT)) --#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT)) -- --#define pfn_valid(pfn) ((pfn) < max_mapnr) --#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v))) -- --#include <asm-generic/memory_model.h> --#include <asm-generic/getorder.h> -- --#endif /* __ASSEMBLY__ */ --#endif /* __UM_PAGE_H */ ---- a/arch/um/include/asm/pgalloc.h -+++ /dev/null -@@ -1,61 +0,0 @@ --/* -- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) -- * Copyright 2003 PathScale, Inc. -- * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h -- * Licensed under the GPL -- */ -- --#ifndef __UM_PGALLOC_H --#define __UM_PGALLOC_H -- --#include <linux/mm.h> -- --#define pmd_populate_kernel(mm, pmd, pte) \ -- set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) -- --#define pmd_populate(mm, pmd, pte) \ -- set_pmd(pmd, __pmd(_PAGE_TABLE + \ -- ((unsigned long long)page_to_pfn(pte) << \ -- (unsigned long long) PAGE_SHIFT))) --#define pmd_pgtable(pmd) pmd_page(pmd) -- --/* -- * Allocate and free page tables. -- */ --extern pgd_t *pgd_alloc(struct mm_struct *); --extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); -- --extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); --extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); -- --static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) --{ -- free_page((unsigned long) pte); --} -- --static inline void pte_free(struct mm_struct *mm, pgtable_t pte) --{ -- pgtable_page_dtor(pte); -- __free_page(pte); --} -- --#define __pte_free_tlb(tlb,pte, address) \ --do { \ -- pgtable_page_dtor(pte); \ -- tlb_remove_page((tlb),(pte)); \ --} while (0) -- --#ifdef CONFIG_3_LEVEL_PGTABLES -- --static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) --{ -- free_page((unsigned long)pmd); --} -- --#define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x)) --#endif -- --#define check_pgt_cache() do { } while (0) -- --#endif -- ---- a/arch/um/include/asm/pgtable-2level.h -+++ /dev/null -@@ -1,53 +0,0 @@ --/* -- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) -- * Copyright 2003 PathScale, Inc. -- * Derived from include/asm-i386/pgtable.h -- * Licensed under the GPL -- */ -- --#ifndef __UM_PGTABLE_2LEVEL_H --#define __UM_PGTABLE_2LEVEL_H -- --#include <asm-generic/pgtable-nopmd.h> -- --/* PGDIR_SHIFT determines what a third-level page table entry can map */ -- --#define PGDIR_SHIFT 22 --#define PGDIR_SIZE (1UL << PGDIR_SHIFT) --#define PGDIR_MASK (~(PGDIR_SIZE-1)) -- --/* -- * entries per page directory level: the i386 is two-level, so -- * we don't really have any PMD directory physically. -- */ --#define PTRS_PER_PTE 1024 --#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE) --#define PTRS_PER_PGD 1024 --#define FIRST_USER_ADDRESS 0 -- --#define pte_ERROR(e) \ -- printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \ -- pte_val(e)) --#define pgd_ERROR(e) \ -- printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \ -- pgd_val(e)) -- --static inline int pgd_newpage(pgd_t pgd) { return 0; } --static inline void pgd_mkuptodate(pgd_t pgd) { } -- --#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) -- --#define pte_pfn(x) phys_to_pfn(pte_val(x)) --#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot)) --#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot)) -- --/* -- * Bits 0 through 4 are taken -- */ --#define PTE_FILE_MAX_BITS 27 -- --#define pte_to_pgoff(pte) (pte_val(pte) >> 5) -- --#define pgoff_to_pte(off) ((pte_t) { ((off) << 5) + _PAGE_FILE }) -- --#endif ---- a/arch/um/include/asm/pgtable-3level.h -+++ /dev/null -@@ -1,136 +0,0 @@ --/* -- * Copyright 2003 PathScale Inc -- * Derived from include/asm-i386/pgtable.h -- * Licensed under the GPL -- */ -- --#ifndef __UM_PGTABLE_3LEVEL_H --#define __UM_PGTABLE_3LEVEL_H -- --#include <asm-generic/pgtable-nopud.h> -- --/* PGDIR_SHIFT determines what a third-level page table entry can map */ -- --#ifdef CONFIG_64BIT --#define PGDIR_SHIFT 30 --#else --#define PGDIR_SHIFT 31 --#endif --#define PGDIR_SIZE (1UL << PGDIR_SHIFT) --#define PGDIR_MASK (~(PGDIR_SIZE-1)) -- --/* PMD_SHIFT determines the size of the area a second-level page table can -- * map -- */ -- --#define PMD_SHIFT 21 --#define PMD_SIZE (1UL << PMD_SHIFT) --#define PMD_MASK (~(PMD_SIZE-1)) -- --/* -- * entries per page directory level -- */ -- --#define PTRS_PER_PTE 512 --#ifdef CONFIG_64BIT --#define PTRS_PER_PMD 512 --#define PTRS_PER_PGD 512 --#else --#define PTRS_PER_PMD 1024 --#define PTRS_PER_PGD 1024 --#endif -- --#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE) --#define FIRST_USER_ADDRESS 0 -- --#define pte_ERROR(e) \ -- printk("%s:%d: bad pte %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -- pte_val(e)) --#define pmd_ERROR(e) \ -- printk("%s:%d: bad pmd %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -- pmd_val(e)) --#define pgd_ERROR(e) \ -- printk("%s:%d: bad pgd %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -- pgd_val(e)) -- --#define pud_none(x) (!(pud_val(x) & ~_PAGE_NEWPAGE)) --#define pud_bad(x) ((pud_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) --#define pud_present(x) (pud_val(x) & _PAGE_PRESENT) --#define pud_populate(mm, pud, pmd) \ -- set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd))) -- --#ifdef CONFIG_64BIT --#define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval)) --#else --#define set_pud(pudptr, pudval) (*(pudptr) = (pudval)) --#endif -- --static inline int pgd_newpage(pgd_t pgd) --{ -- return(pgd_val(pgd) & _PAGE_NEWPAGE); --} -- --static inline void pgd_mkuptodate(pgd_t pgd) { pgd_val(pgd) &= ~_PAGE_NEWPAGE; } -- --#ifdef CONFIG_64BIT --#define set_pmd(pmdptr, pmdval) set_64bit((u64 *) (pmdptr), pmd_val(pmdval)) --#else --#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) --#endif -- --struct mm_struct; --extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address); -- --static inline void pud_clear (pud_t *pud) --{ -- set_pud(pud, __pud(_PAGE_NEWPAGE)); --} -- --#define pud_page(pud) phys_to_page(pud_val(pud) & PAGE_MASK) --#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PAGE_MASK)) -- --/* Find an entry in the second-level page table.. */ --#define pmd_offset(pud, address) ((pmd_t *) pud_page_vaddr(*(pud)) + \ -- pmd_index(address)) -- --static inline unsigned long pte_pfn(pte_t pte) --{ -- return phys_to_pfn(pte_val(pte)); --} -- --static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot) --{ -- pte_t pte; -- phys_t phys = pfn_to_phys(page_nr); -- -- pte_set_val(pte, phys, pgprot); -- return pte; --} -- --static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot) --{ -- return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot)); --} -- --/* -- * Bits 0 through 3 are taken in the low part of the pte, -- * put the 32 bits of offset into the high part. -- */ --#define PTE_FILE_MAX_BITS 32 -- --#ifdef CONFIG_64BIT -- --#define pte_to_pgoff(p) ((p).pte >> 32) -- --#define pgoff_to_pte(off) ((pte_t) { ((off) << 32) | _PAGE_FILE }) -- --#else -- --#define pte_to_pgoff(pte) ((pte).pte_high) -- --#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) }) -- --#endif -- --#endif -- ---- a/arch/um/include/asm/pgtable.h -+++ /dev/null -@@ -1,375 +0,0 @@ --/* -- * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Copyright 2003 PathScale, Inc. -- * Derived from include/asm-i386/pgtable.h -- * Licensed under the GPL -- */ -- --#ifndef __UM_PGTABLE_H --#define __UM_PGTABLE_H -- --#include <asm/fixmap.h> -- --#define _PAGE_PRESENT 0x001 --#define _PAGE_NEWPAGE 0x002 --#define _PAGE_NEWPROT 0x004 --#define _PAGE_RW 0x020 --#define _PAGE_USER 0x040 --#define _PAGE_ACCESSED 0x080 --#define _PAGE_DIRTY 0x100 --/* If _PAGE_PRESENT is clear, we use these: */ --#define _PAGE_FILE 0x008 /* nonlinear file mapping, saved PTE; unset:swap */ --#define _PAGE_PROTNONE 0x010 /* if the user mapped it with PROT_NONE; -- pte_present gives true */ -- --#ifdef CONFIG_3_LEVEL_PGTABLES --#include <asm/pgtable-3level.h> --#else --#include <asm/pgtable-2level.h> --#endif -- --extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -- --/* zero page used for uninitialized stuff */ --extern unsigned long *empty_zero_page; -- --#define pgtable_cache_init() do ; while (0) -- --/* Just any arbitrary offset to the start of the vmalloc VM area: the -- * current 8MB value just means that there will be a 8MB "hole" after the -- * physical memory until the kernel virtual memory starts. That means that -- * any out-of-bounds memory accesses will hopefully be caught. -- * The vmalloc() routines leaves a hole of 4kB between each vmalloced -- * area for the same reason. ;) -- */ -- --extern unsigned long end_iomem; -- --#define VMALLOC_OFFSET (__va_space) --#define VMALLOC_START ((end_iomem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) --#define PKMAP_BASE ((FIXADDR_START - LAST_PKMAP * PAGE_SIZE) & PMD_MASK) --#ifdef CONFIG_HIGHMEM --# define VMALLOC_END (PKMAP_BASE-2*PAGE_SIZE) --#else --# define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE) --#endif --#define MODULES_VADDR VMALLOC_START --#define MODULES_END VMALLOC_END --#define MODULES_LEN (MODULES_VADDR - MODULES_END) -- --#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) --#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) --#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) --#define __PAGE_KERNEL_EXEC \ -- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) --#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED) --#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED) --#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) --#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) --#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) --#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC) -- --/* -- * The i386 can't do page protection for execute, and considers that the same -- * are read. -- * Also, write permissions imply read permissions. This is the closest we can -- * get.. -- */ --#define __P000 PAGE_NONE --#define __P001 PAGE_READONLY --#define __P010 PAGE_COPY --#define __P011 PAGE_COPY --#define __P100 PAGE_READONLY --#define __P101 PAGE_READONLY --#define __P110 PAGE_COPY --#define __P111 PAGE_COPY -- --#define __S000 PAGE_NONE --#define __S001 PAGE_READONLY --#define __S010 PAGE_SHARED --#define __S011 PAGE_SHARED --#define __S100 PAGE_READONLY --#define __S101 PAGE_READONLY --#define __S110 PAGE_SHARED --#define __S111 PAGE_SHARED -- --/* -- * ZERO_PAGE is a global shared page that is always zero: used -- * for zero-mapped memory areas etc.. -- */ --#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page) -- --#define pte_clear(mm,addr,xp) pte_set_val(*(xp), (phys_t) 0, __pgprot(_PAGE_NEWPAGE)) -- --#define pmd_none(x) (!((unsigned long)pmd_val(x) & ~_PAGE_NEWPAGE)) --#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) -- --#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) --#define pmd_clear(xp) do { pmd_val(*(xp)) = _PAGE_NEWPAGE; } while (0) -- --#define pmd_newpage(x) (pmd_val(x) & _PAGE_NEWPAGE) --#define pmd_mkuptodate(x) (pmd_val(x) &= ~_PAGE_NEWPAGE) -- --#define pud_newpage(x) (pud_val(x) & _PAGE_NEWPAGE) --#define pud_mkuptodate(x) (pud_val(x) &= ~_PAGE_NEWPAGE) -- --#define pmd_page(pmd) phys_to_page(pmd_val(pmd) & PAGE_MASK) -- --#define pte_page(x) pfn_to_page(pte_pfn(x)) -- --#define pte_present(x) pte_get_bits(x, (_PAGE_PRESENT | _PAGE_PROTNONE)) -- --/* -- * ================================= -- * Flags checking section. -- * ================================= -- */ -- --static inline int pte_none(pte_t pte) --{ -- return pte_is_zero(pte); --} -- --/* -- * The following only work if pte_present() is true. -- * Undefined behaviour if not.. -- */ --static inline int pte_read(pte_t pte) --{ -- return((pte_get_bits(pte, _PAGE_USER)) && -- !(pte_get_bits(pte, _PAGE_PROTNONE))); --} -- --static inline int pte_exec(pte_t pte){ -- return((pte_get_bits(pte, _PAGE_USER)) && -- !(pte_get_bits(pte, _PAGE_PROTNONE))); --} -- --static inline int pte_write(pte_t pte) --{ -- return((pte_get_bits(pte, _PAGE_RW)) && -- !(pte_get_bits(pte, _PAGE_PROTNONE))); --} -- --/* -- * The following only works if pte_present() is not true. -- */ --static inline int pte_file(pte_t pte) --{ -- return pte_get_bits(pte, _PAGE_FILE); --} -- --static inline int pte_dirty(pte_t pte) --{ -- return pte_get_bits(pte, _PAGE_DIRTY); --} -- --static inline int pte_young(pte_t pte) --{ -- return pte_get_bits(pte, _PAGE_ACCESSED); --} -- --static inline int pte_newpage(pte_t pte) --{ -- return pte_get_bits(pte, _PAGE_NEWPAGE); --} -- --static inline int pte_newprot(pte_t pte) --{ -- return(pte_present(pte) && (pte_get_bits(pte, _PAGE_NEWPROT))); --} -- --static inline int pte_special(pte_t pte) --{ -- return 0; --} -- --/* -- * ================================= -- * Flags setting section. -- * ================================= -- */ -- --static inline pte_t pte_mknewprot(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_NEWPROT); -- return(pte); --} -- --static inline pte_t pte_mkclean(pte_t pte) --{ -- pte_clear_bits(pte, _PAGE_DIRTY); -- return(pte); --} -- --static inline pte_t pte_mkold(pte_t pte) --{ -- pte_clear_bits(pte, _PAGE_ACCESSED); -- return(pte); --} -- --static inline pte_t pte_wrprotect(pte_t pte) --{ -- pte_clear_bits(pte, _PAGE_RW); -- return(pte_mknewprot(pte)); --} -- --static inline pte_t pte_mkread(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_USER); -- return(pte_mknewprot(pte)); --} -- --static inline pte_t pte_mkdirty(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_DIRTY); -- return(pte); --} -- --static inline pte_t pte_mkyoung(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_ACCESSED); -- return(pte); --} -- --static inline pte_t pte_mkwrite(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_RW); -- return(pte_mknewprot(pte)); --} -- --static inline pte_t pte_mkuptodate(pte_t pte) --{ -- pte_clear_bits(pte, _PAGE_NEWPAGE); -- if(pte_present(pte)) -- pte_clear_bits(pte, _PAGE_NEWPROT); -- return(pte); --} -- --static inline pte_t pte_mknewpage(pte_t pte) --{ -- pte_set_bits(pte, _PAGE_NEWPAGE); -- return(pte); --} -- --static inline pte_t pte_mkspecial(pte_t pte) --{ -- return(pte); --} -- --static inline void set_pte(pte_t *pteptr, pte_t pteval) --{ -- pte_copy(*pteptr, pteval); -- -- /* If it's a swap entry, it needs to be marked _PAGE_NEWPAGE so -- * fix_range knows to unmap it. _PAGE_NEWPROT is specific to -- * mapped pages. -- */ -- -- *pteptr = pte_mknewpage(*pteptr); -- if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr); --} --#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) -- --#define __HAVE_ARCH_PTE_SAME --static inline int pte_same(pte_t pte_a, pte_t pte_b) --{ -- return !((pte_val(pte_a) ^ pte_val(pte_b)) & ~_PAGE_NEWPAGE); --} -- --/* -- * Conversion functions: convert a page and protection to a page entry, -- * and a page entry and page directory to the page they refer to. -- */ -- --#define phys_to_page(phys) pfn_to_page(phys_to_pfn(phys)) --#define __virt_to_page(virt) phys_to_page(__pa(virt)) --#define page_to_phys(page) pfn_to_phys((pfn_t) page_to_pfn(page)) --#define virt_to_page(addr) __virt_to_page((const unsigned long) addr) -- --#define mk_pte(page, pgprot) \ -- ({ pte_t pte; \ -- \ -- pte_set_val(pte, page_to_phys(page), (pgprot)); \ -- if (pte_present(pte)) \ -- pte_mknewprot(pte_mknewpage(pte)); \ -- pte;}) -- --static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) --{ -- pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot); -- return pte; --} -- --/* -- * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] -- * -- * this macro returns the index of the entry in the pgd page which would -- * control the given virtual address -- */ --#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) -- --/* -- * pgd_offset() returns a (pgd_t *) -- * pgd_index() is used get the offset into the pgd page's array of pgd_t's; -- */ --#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) -- --/* -- * a shortcut which implies the use of the kernel's pgd, instead -- * of a process's -- */ --#define pgd_offset_k(address) pgd_offset(&init_mm, address) -- --/* -- * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD] -- * -- * this macro returns the index of the entry in the pmd page which would -- * control the given virtual address -- */ --#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) --#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) -- --#define pmd_page_vaddr(pmd) \ -- ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) -- --/* -- * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE] -- * -- * this macro returns the index of the entry in the pte page which would -- * control the given virtual address -- */ --#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) --#define pte_offset_kernel(dir, address) \ -- ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) --#define pte_offset_map(dir, address) \ -- ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) --#define pte_unmap(pte) do { } while (0) -- --struct mm_struct; --extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr); -- --#define update_mmu_cache(vma,address,ptep) do ; while (0) -- --/* Encode and de-code a swap entry */ --#define __swp_type(x) (((x).val >> 5) & 0x1f) --#define __swp_offset(x) ((x).val >> 11) -- --#define __swp_entry(type, offset) \ -- ((swp_entry_t) { ((type) << 5) | ((offset) << 11) }) --#define __pte_to_swp_entry(pte) \ -- ((swp_entry_t) { pte_val(pte_mkuptodate(pte)) }) --#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -- --#define kern_addr_valid(addr) (1) -- --#include <asm-generic/pgtable.h> -- --/* Clear a kernel PTE and flush it from the TLB */ --#define kpte_clear_flush(ptep, vaddr) \ --do { \ -- pte_clear(&init_mm, (vaddr), (ptep)); \ -- __flush_tlb_one((vaddr)); \ --} while (0) -- --#endif ---- a/arch/um/include/asm/processor-generic.h -+++ /dev/null -@@ -1,115 +0,0 @@ --/* -- * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_PROCESSOR_GENERIC_H --#define __UM_PROCESSOR_GENERIC_H -- --struct pt_regs; -- --struct task_struct; -- --#include <asm/ptrace.h> --#include <registers.h> --#include <sysdep/archsetjmp.h> -- --#include <linux/prefetch.h> -- --struct mm_struct; -- --struct thread_struct { -- struct pt_regs regs; -- struct pt_regs *segv_regs; -- int singlestep_syscall; -- void *fault_addr; -- jmp_buf *fault_catcher; -- struct task_struct *prev_sched; -- struct arch_thread arch; -- jmp_buf switch_buf; -- struct { -- int op; -- union { -- struct { -- int pid; -- } fork, exec; -- struct { -- int (*proc)(void *); -- void *arg; -- } thread; -- struct { -- void (*proc)(void *); -- void *arg; -- } cb; -- } u; -- } request; --}; -- --#define INIT_THREAD \ --{ \ -- .regs = EMPTY_REGS, \ -- .fault_addr = NULL, \ -- .prev_sched = NULL, \ -- .arch = INIT_ARCH_THREAD, \ -- .request = { 0 } \ --} -- --static inline void release_thread(struct task_struct *task) --{ --} -- --extern unsigned long thread_saved_pc(struct task_struct *t); -- --static inline void mm_copy_segments(struct mm_struct *from_mm, -- struct mm_struct *new_mm) --{ --} -- --#define init_stack (init_thread_union.stack) -- --/* -- * User space process size: 3GB (default). -- */ --extern unsigned long task_size; -- --#define TASK_SIZE (task_size) -- --#undef STACK_TOP --#undef STACK_TOP_MAX -- --extern unsigned long stacksizelim; -- --#define STACK_ROOM (stacksizelim) --#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE) --#define STACK_TOP_MAX STACK_TOP -- --/* This decides where the kernel will search for a free chunk of vm -- * space during mmap's. -- */ --#define TASK_UNMAPPED_BASE (0x40000000) -- --extern void start_thread(struct pt_regs *regs, unsigned long entry, -- unsigned long stack); -- --struct cpuinfo_um { -- unsigned long loops_per_jiffy; -- int ipi_pipe[2]; --}; -- --extern struct cpuinfo_um boot_cpu_data; -- --#define my_cpu_data cpu_data[smp_processor_id()] -- --#ifdef CONFIG_SMP --extern struct cpuinfo_um cpu_data[]; --#define current_cpu_data cpu_data[smp_processor_id()] --#else --#define cpu_data (&boot_cpu_data) --#define current_cpu_data boot_cpu_data --#endif -- -- --#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) --extern unsigned long get_wchan(struct task_struct *p); -- --#endif ---- a/arch/um/include/asm/ptrace-generic.h -+++ /dev/null -@@ -1,45 +0,0 @@ --/* -- * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_PTRACE_GENERIC_H --#define __UM_PTRACE_GENERIC_H -- --#ifndef __ASSEMBLY__ -- --#include <asm/ptrace-abi.h> --#include <sysdep/ptrace.h> -- --struct pt_regs { -- struct uml_pt_regs regs; --}; -- --#define arch_has_single_step() (1) -- --#define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS } -- --#define PT_REGS_IP(r) UPT_IP(&(r)->regs) --#define PT_REGS_SP(r) UPT_SP(&(r)->regs) -- --#define PT_REGS_RESTART_SYSCALL(r) UPT_RESTART_SYSCALL(&(r)->regs) -- --#define PT_REGS_SYSCALL_NR(r) UPT_SYSCALL_NR(&(r)->regs) -- --#define instruction_pointer(regs) PT_REGS_IP(regs) -- --struct task_struct; -- --extern long subarch_ptrace(struct task_struct *child, long request, -- unsigned long addr, unsigned long data); --extern unsigned long getreg(struct task_struct *child, int regno); --extern int putreg(struct task_struct *child, int regno, unsigned long value); -- --extern int arch_copy_tls(struct task_struct *new); --extern void clear_flushed_tls(struct task_struct *task); --extern void syscall_trace_enter(struct pt_regs *regs); --extern void syscall_trace_leave(struct pt_regs *regs); -- --#endif -- --#endif ---- a/arch/um/include/asm/setup.h -+++ /dev/null -@@ -1,10 +0,0 @@ --#ifndef SETUP_H_INCLUDED --#define SETUP_H_INCLUDED -- --/* POSIX mandated with _POSIX_ARG_MAX that we can rely on 4096 chars in the -- * command line, so this choice is ok. -- */ -- --#define COMMAND_LINE_SIZE 4096 -- --#endif /* SETUP_H_INCLUDED */ ---- a/arch/um/include/asm/smp.h -+++ /dev/null -@@ -1,32 +0,0 @@ --#ifndef __UM_SMP_H --#define __UM_SMP_H -- --#ifdef CONFIG_SMP -- --#include <linux/bitops.h> --#include <asm/current.h> --#include <linux/cpumask.h> -- --#define raw_smp_processor_id() (current_thread->cpu) -- --#define cpu_logical_map(n) (n) --#define cpu_number_map(n) (n) --extern int hard_smp_processor_id(void); --#define NO_PROC_ID -1 -- --extern int ncpus; -- -- --static inline void smp_cpus_done(unsigned int maxcpus) --{ --} -- --extern struct task_struct *idle_threads[NR_CPUS]; -- --#else -- --#define hard_smp_processor_id() 0 -- --#endif -- --#endif ---- a/arch/um/include/asm/sysrq.h -+++ /dev/null -@@ -1,7 +0,0 @@ --#ifndef __UM_SYSRQ_H --#define __UM_SYSRQ_H -- --struct task_struct; --extern void show_trace(struct task_struct* task, unsigned long *stack); -- --#endif ---- a/arch/um/include/asm/thread_info.h -+++ /dev/null -@@ -1,78 +0,0 @@ --/* -- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_THREAD_INFO_H --#define __UM_THREAD_INFO_H -- --#ifndef __ASSEMBLY__ -- --#include <asm/types.h> --#include <asm/page.h> --#include <asm/uaccess.h> -- --struct thread_info { -- struct task_struct *task; /* main task structure */ -- struct exec_domain *exec_domain; /* execution domain */ -- unsigned long flags; /* low level flags */ -- __u32 cpu; /* current CPU */ -- int preempt_count; /* 0 => preemptable, -- <0 => BUG */ -- mm_segment_t addr_limit; /* thread address space: -- 0-0xBFFFFFFF for user -- 0-0xFFFFFFFF for kernel */ -- struct restart_block restart_block; -- struct thread_info *real_thread; /* Points to non-IRQ stack */ --}; -- --#define INIT_THREAD_INFO(tsk) \ --{ \ -- .task = &tsk, \ -- .exec_domain = &default_exec_domain, \ -- .flags = 0, \ -- .cpu = 0, \ -- .preempt_count = INIT_PREEMPT_COUNT, \ -- .addr_limit = KERNEL_DS, \ -- .restart_block = { \ -- .fn = do_no_restart_syscall, \ -- }, \ -- .real_thread = NULL, \ --} -- --#define init_thread_info (init_thread_union.thread_info) --#define init_stack (init_thread_union.stack) -- --#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE) --/* how to get the thread information struct from C */ --static inline struct thread_info *current_thread_info(void) --{ -- struct thread_info *ti; -- unsigned long mask = THREAD_SIZE - 1; -- void *p; -- -- asm volatile ("" : "=r" (p) : "0" (&ti)); -- ti = (struct thread_info *) (((unsigned long)p) & ~mask); -- return ti; --} -- --#define THREAD_SIZE_ORDER CONFIG_KERNEL_STACK_ORDER -- --#endif -- --#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ --#define TIF_SIGPENDING 1 /* signal pending */ --#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ --#define TIF_RESTART_BLOCK 4 --#define TIF_MEMDIE 5 /* is terminating due to OOM killer */ --#define TIF_SYSCALL_AUDIT 6 --#define TIF_RESTORE_SIGMASK 7 --#define TIF_NOTIFY_RESUME 8 -- --#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) --#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) --#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) --#define _TIF_MEMDIE (1 << TIF_MEMDIE) --#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) -- --#endif ---- a/arch/um/include/asm/timex.h -+++ /dev/null -@@ -1,13 +0,0 @@ --#ifndef __UM_TIMEX_H --#define __UM_TIMEX_H -- --typedef unsigned long cycles_t; -- --static inline cycles_t get_cycles (void) --{ -- return 0; --} -- --#define CLOCK_TICK_RATE (HZ) -- --#endif ---- a/arch/um/include/asm/tlb.h -+++ /dev/null -@@ -1,122 +0,0 @@ --#ifndef __UM_TLB_H --#define __UM_TLB_H -- --#include <linux/pagemap.h> --#include <linux/swap.h> --#include <asm/percpu.h> --#include <asm/pgalloc.h> --#include <asm/tlbflush.h> -- --#define tlb_start_vma(tlb, vma) do { } while (0) --#define tlb_end_vma(tlb, vma) do { } while (0) --#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) -- --/* struct mmu_gather is an opaque type used by the mm code for passing around -- * any data needed by arch specific code for tlb_remove_page. -- */ --struct mmu_gather { -- struct mm_struct *mm; -- unsigned int need_flush; /* Really unmapped some ptes? */ -- unsigned long start; -- unsigned long end; -- unsigned int fullmm; /* non-zero means full mm flush */ --}; -- --static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, -- unsigned long address) --{ -- if (tlb->start > address) -- tlb->start = address; -- if (tlb->end < address + PAGE_SIZE) -- tlb->end = address + PAGE_SIZE; --} -- --static inline void init_tlb_gather(struct mmu_gather *tlb) --{ -- tlb->need_flush = 0; -- -- tlb->start = TASK_SIZE; -- tlb->end = 0; -- -- if (tlb->fullmm) { -- tlb->start = 0; -- tlb->end = TASK_SIZE; -- } --} -- --static inline void --tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) --{ -- tlb->mm = mm; -- tlb->start = start; -- tlb->end = end; -- tlb->fullmm = !(start | (end+1)); -- -- init_tlb_gather(tlb); --} -- --extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, -- unsigned long end); -- --static inline void --tlb_flush_mmu(struct mmu_gather *tlb) --{ -- if (!tlb->need_flush) -- return; -- -- flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end); -- init_tlb_gather(tlb); --} -- --/* tlb_finish_mmu -- * Called at the end of the shootdown operation to free up any resources -- * that were required. -- */ --static inline void --tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) --{ -- tlb_flush_mmu(tlb); -- -- /* keep the page table cache within bounds */ -- check_pgt_cache(); --} -- --/* tlb_remove_page -- * Must perform the equivalent to __free_pte(pte_get_and_clear(ptep)), -- * while handling the additional races in SMP caused by other CPUs -- * caching valid mappings in their TLBs. -- */ --static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) --{ -- tlb->need_flush = 1; -- free_page_and_swap_cache(page); -- return 1; /* avoid calling tlb_flush_mmu */ --} -- --static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) --{ -- __tlb_remove_page(tlb, page); --} -- --/** -- * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation. -- * -- * Record the fact that pte's were really umapped in ->need_flush, so we can -- * later optimise away the tlb invalidate. This helps when userspace is -- * unmapping already-unmapped pages, which happens quite a lot. -- */ --#define tlb_remove_tlb_entry(tlb, ptep, address) \ -- do { \ -- tlb->need_flush = 1; \ -- __tlb_remove_tlb_entry(tlb, ptep, address); \ -- } while (0) -- --#define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr) -- --#define pud_free_tlb(tlb, pudp, addr) __pud_free_tlb(tlb, pudp, addr) -- --#define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr) -- --#define tlb_migrate_finish(mm) do {} while (0) -- --#endif ---- a/arch/um/include/asm/tlbflush.h -+++ /dev/null -@@ -1,31 +0,0 @@ --/* -- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_TLBFLUSH_H --#define __UM_TLBFLUSH_H -- --#include <linux/mm.h> -- --/* -- * TLB flushing: -- * -- * - flush_tlb() flushes the current mm struct TLBs -- * - flush_tlb_all() flushes all processes TLBs -- * - flush_tlb_mm(mm) flushes the specified mm context TLB's -- * - flush_tlb_page(vma, vmaddr) flushes one page -- * - flush_tlb_kernel_vm() flushes the kernel vm area -- * - flush_tlb_range(vma, start, end) flushes a range of pages -- */ -- --extern void flush_tlb_all(void); --extern void flush_tlb_mm(struct mm_struct *mm); --extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, -- unsigned long end); --extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long address); --extern void flush_tlb_kernel_vm(void); --extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); --extern void __flush_tlb_one(unsigned long addr); -- --#endif ---- a/arch/um/include/asm/uaccess.h -+++ /dev/null -@@ -1,178 +0,0 @@ --/* -- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -- * Licensed under the GPL -- */ -- --#ifndef __UM_UACCESS_H --#define __UM_UACCESS_H -- --/* thread_info has a mm_segment_t in it, so put the definition up here */ --typedef struct { -- unsigned long seg; --} mm_segment_t; -- --#include <linux/thread_info.h> --#include <linux/errno.h> --#include <asm/processor.h> --#include <asm/elf.h> -- --#define VERIFY_READ 0 --#define VERIFY_WRITE 1 -- --/* -- * The fs value determines whether argument validity checking should be -- * performed or not. If get_fs() == USER_DS, checking is performed, with -- * get_fs() == KERNEL_DS, checking is bypassed. -- * -- * For historical reasons, these macros are grossly misnamed. -- */ -- --#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -- --#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF) --#define USER_DS MAKE_MM_SEG(TASK_SIZE) -- --#define get_ds() (KERNEL_DS) --#define get_fs() (current_thread_info()->addr_limit) --#define set_fs(x) (current_thread_info()->addr_limit = (x)) -- --#define segment_eq(a, b) ((a).seg == (b).seg) -- --#define __under_task_size(addr, size) \ -- (((unsigned long) (addr) < TASK_SIZE) && \ -- (((unsigned long) (addr) + (size)) < TASK_SIZE)) -- --#define __access_ok_vsyscall(type, addr, size) \ -- ((type == VERIFY_READ) && \ -- ((unsigned long) (addr) >= FIXADDR_USER_START) && \ -- ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \ -- ((unsigned long) (addr) + (size) >= (unsigned long)(addr))) -- --#define __addr_range_nowrap(addr, size) \ -- ((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) -- --#define access_ok(type, addr, size) \ -- (__addr_range_nowrap(addr, size) && \ -- (__under_task_size(addr, size) || \ -- __access_ok_vsyscall(type, addr, size) || \ -- segment_eq(get_fs(), KERNEL_DS))) -- --extern int copy_from_user(void *to, const void __user *from, int n); --extern int copy_to_user(void __user *to, const void *from, int n); -- --/* -- * strncpy_from_user: - Copy a NUL terminated string from userspace. -- * @dst: Destination address, in kernel space. This buffer must be at -- * least @count bytes long. -- * @src: Source address, in user space. -- * @count: Maximum number of bytes to copy, including the trailing NUL. -- * -- * Copies a NUL-terminated string from userspace to kernel space. -- * -- * On success, returns the length of the string (not including the trailing -- * NUL). -- * -- * If access to userspace fails, returns -EFAULT (some data may have been -- * copied). -- * -- * If @count is smaller than the length of the string, copies @count bytes -- * and returns @count. -- */ -- --extern int strncpy_from_user(char *dst, const char __user *src, int count); -- --/* -- * __clear_user: - Zero a block of memory in user space, with less checking. -- * @to: Destination address, in user space. -- * @n: Number of bytes to zero. -- * -- * Zero a block of memory in user space. Caller must check -- * the specified block with access_ok() before calling this function. -- * -- * Returns number of bytes that could not be cleared. -- * On success, this will be zero. -- */ --extern int __clear_user(void __user *mem, int len); -- --/* -- * clear_user: - Zero a block of memory in user space. -- * @to: Destination address, in user space. -- * @n: Number of bytes to zero. -- * -- * Zero a block of memory in user space. -- * -- * Returns number of bytes that could not be cleared. -- * On success, this will be zero. -- */ --extern int clear_user(void __user *mem, int len); -- --/* -- * strlen_user: - Get the size of a string in user space. -- * @str: The string to measure. -- * @n: The maximum valid length -- * -- * Get the size of a NUL-terminated string in user space. -- * -- * Returns the size of the string INCLUDING the terminating NUL. -- * On exception, returns 0. -- * If the string is too long, returns a value greater than @n. -- */ --extern int strnlen_user(const void __user *str, int len); -- --#define __copy_from_user(to, from, n) copy_from_user(to, from, n) -- --#define __copy_to_user(to, from, n) copy_to_user(to, from, n) -- --#define __copy_to_user_inatomic __copy_to_user --#define __copy_from_user_inatomic __copy_from_user -- --#define __get_user(x, ptr) \ --({ \ -- const __typeof__(*(ptr)) __user *__private_ptr = (ptr); \ -- __typeof__(x) __private_val; \ -- int __private_ret = -EFAULT; \ -- (x) = (__typeof__(*(__private_ptr)))0; \ -- if (__copy_from_user((__force void *)&__private_val, (__private_ptr),\ -- sizeof(*(__private_ptr))) == 0) { \ -- (x) = (__typeof__(*(__private_ptr))) __private_val; \ -- __private_ret = 0; \ -- } \ -- __private_ret; \ --}) -- --#define get_user(x, ptr) \ --({ \ -- const __typeof__((*(ptr))) __user *private_ptr = (ptr); \ -- (access_ok(VERIFY_READ, private_ptr, sizeof(*private_ptr)) ? \ -- __get_user(x, private_ptr) : ((x) = (__typeof__(*ptr))0, -EFAULT)); \ --}) -- --#define __put_user(x, ptr) \ --({ \ -- __typeof__(*(ptr)) __user *__private_ptr = ptr; \ -- __typeof__(*(__private_ptr)) __private_val; \ -- int __private_ret = -EFAULT; \ -- __private_val = (__typeof__(*(__private_ptr))) (x); \ -- if (__copy_to_user((__private_ptr), &__private_val, \ -- sizeof(*(__private_ptr))) == 0) { \ -- __private_ret = 0; \ -- } \ -- __private_ret; \ --}) -- --#define put_user(x, ptr) \ --({ \ -- __typeof__(*(ptr)) __user *private_ptr = (ptr); \ -- (access_ok(VERIFY_WRITE, private_ptr, sizeof(*private_ptr)) ? \ -- __put_user(x, private_ptr) : -EFAULT); \ --}) -- --#define strlen_user(str) strnlen_user(str, ~0U >> 1) -- --struct exception_table_entry --{ -- unsigned long insn; -- unsigned long fixup; --}; -- --#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/Kbuild -@@ -0,0 +1,8 @@ -+generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h -+generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h -+generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h -+generic-y += switch_to.h clkdev.h -+generic-y += trace_clock.h -+generic-y += preempt.h -+generic-y += hash.h -+generic-y += barrier.h ---- /dev/null -+++ b/arch/um/include/uapi/asm/a.out-core.h -@@ -0,0 +1,27 @@ -+/* a.out coredump register dumper -+ * -+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -+ * Written by David Howells (dhowells@redhat.com) -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public Licence -+ * as published by the Free Software Foundation; either version -+ * 2 of the Licence, or (at your option) any later version. -+ */ -+ -+#ifndef __UM_A_OUT_CORE_H -+#define __UM_A_OUT_CORE_H -+ -+#ifdef __KERNEL__ -+ -+#include <linux/user.h> -+ -+/* -+ * fill in the user structure for an a.out core dump -+ */ -+static inline void aout_dump_thread(struct pt_regs *regs, struct user *u) -+{ -+} -+ -+#endif /* __KERNEL__ */ -+#endif /* __UM_A_OUT_CORE_H */ ---- /dev/null -+++ b/arch/um/include/uapi/asm/bugs.h -@@ -0,0 +1,6 @@ -+#ifndef __UM_BUGS_H -+#define __UM_BUGS_H -+ -+void check_bugs(void); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/cache.h -@@ -0,0 +1,17 @@ -+#ifndef __UM_CACHE_H -+#define __UM_CACHE_H -+ -+ -+#if defined(CONFIG_UML_X86) && !defined(CONFIG_64BIT) -+# define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) -+#elif defined(CONFIG_UML_X86) /* 64-bit */ -+# define L1_CACHE_SHIFT 6 /* Should be 7 on Intel */ -+#else -+/* XXX: this was taken from x86, now it's completely random. Luckily only -+ * affects SMP padding. */ -+# define L1_CACHE_SHIFT 5 -+#endif -+ -+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/common.lds.S -@@ -0,0 +1,107 @@ -+#include <asm-generic/vmlinux.lds.h> -+ -+ .fini : { *(.fini) } =0x9090 -+ _etext = .; -+ PROVIDE (etext = .); -+ -+ . = ALIGN(4096); -+ _sdata = .; -+ PROVIDE (sdata = .); -+ -+ RODATA -+ -+ .unprotected : { *(.unprotected) } -+ . = ALIGN(4096); -+ PROVIDE (_unprotected_end = .); -+ -+ . = ALIGN(4096); -+ .note : { *(.note.*) } -+ EXCEPTION_TABLE(0) -+ -+ BUG_TABLE -+ -+ .uml.setup.init : { -+ __uml_setup_start = .; -+ *(.uml.setup.init) -+ __uml_setup_end = .; -+ } -+ -+ .uml.help.init : { -+ __uml_help_start = .; -+ *(.uml.help.init) -+ __uml_help_end = .; -+ } -+ -+ .uml.postsetup.init : { -+ __uml_postsetup_start = .; -+ *(.uml.postsetup.init) -+ __uml_postsetup_end = .; -+ } -+ -+ .init.setup : { -+ INIT_SETUP(0) -+ } -+ -+ PERCPU_SECTION(32) -+ -+ .initcall.init : { -+ INIT_CALLS -+ } -+ -+ .con_initcall.init : { -+ CON_INITCALL -+ } -+ -+ .uml.initcall.init : { -+ __uml_initcall_start = .; -+ *(.uml.initcall.init) -+ __uml_initcall_end = .; -+ } -+ -+ SECURITY_INIT -+ -+ .exitcall : { -+ __exitcall_begin = .; -+ *(.exitcall.exit) -+ __exitcall_end = .; -+ } -+ -+ .uml.exitcall : { -+ __uml_exitcall_begin = .; -+ *(.uml.exitcall.exit) -+ __uml_exitcall_end = .; -+ } -+ -+ . = ALIGN(4); -+ .altinstructions : { -+ __alt_instructions = .; -+ *(.altinstructions) -+ __alt_instructions_end = .; -+ } -+ .altinstr_replacement : { *(.altinstr_replacement) } -+ /* .exit.text is discard at runtime, not link time, to deal with references -+ from .altinstructions and .eh_frame */ -+ .exit.text : { *(.exit.text) } -+ .exit.data : { *(.exit.data) } -+ -+ .preinit_array : { -+ __preinit_array_start = .; -+ *(.preinit_array) -+ __preinit_array_end = .; -+ } -+ .init_array : { -+ __init_array_start = .; -+ *(.init_array) -+ __init_array_end = .; -+ } -+ .fini_array : { -+ __fini_array_start = .; -+ *(.fini_array) -+ __fini_array_end = .; -+ } -+ -+ . = ALIGN(4096); -+ .init.ramfs : { -+ INIT_RAM_FS -+ } -+ ---- /dev/null -+++ b/arch/um/include/uapi/asm/dma.h -@@ -0,0 +1,10 @@ -+#ifndef __UM_DMA_H -+#define __UM_DMA_H -+ -+#include <asm/io.h> -+ -+extern unsigned long uml_physmem; -+ -+#define MAX_DMA_ADDRESS (uml_physmem) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/fixmap.h -@@ -0,0 +1,60 @@ -+#ifndef __UM_FIXMAP_H -+#define __UM_FIXMAP_H -+ -+#include <asm/processor.h> -+#include <asm/kmap_types.h> -+#include <asm/archparam.h> -+#include <asm/page.h> -+#include <linux/threads.h> -+ -+/* -+ * Here we define all the compile-time 'special' virtual -+ * addresses. The point is to have a constant address at -+ * compile time, but to set the physical address only -+ * in the boot process. We allocate these special addresses -+ * from the end of virtual memory (0xfffff000) backwards. -+ * Also this lets us do fail-safe vmalloc(), we -+ * can guarantee that these special addresses and -+ * vmalloc()-ed addresses never overlap. -+ * -+ * these 'compile-time allocated' memory buffers are -+ * fixed-size 4k pages. (or larger if used with an increment -+ * highger than 1) use fixmap_set(idx,phys) to associate -+ * physical memory with fixmap indices. -+ * -+ * TLB entries of such buffers will not be flushed across -+ * task switches. -+ */ -+ -+/* -+ * on UP currently we will have no trace of the fixmap mechanizm, -+ * no page table allocations, etc. This might change in the -+ * future, say framebuffers for the console driver(s) could be -+ * fix-mapped? -+ */ -+enum fixed_addresses { -+#ifdef CONFIG_HIGHMEM -+ FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ -+ FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, -+#endif -+ __end_of_fixed_addresses -+}; -+ -+extern void __set_fixmap (enum fixed_addresses idx, -+ unsigned long phys, pgprot_t flags); -+ -+/* -+ * used by vmalloc.c. -+ * -+ * Leave one empty page between vmalloc'ed areas and -+ * the start of the fixmap, and leave one page empty -+ * at the top of mem.. -+ */ -+ -+#define FIXADDR_TOP (TASK_SIZE - 2 * PAGE_SIZE) -+#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) -+#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) -+ -+#include <asm-generic/fixmap.h> -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/irq.h -@@ -0,0 +1,23 @@ -+#ifndef __UM_IRQ_H -+#define __UM_IRQ_H -+ -+#define TIMER_IRQ 0 -+#define UMN_IRQ 1 -+#define CONSOLE_IRQ 2 -+#define CONSOLE_WRITE_IRQ 3 -+#define UBD_IRQ 4 -+#define UM_ETH_IRQ 5 -+#define SSL_IRQ 6 -+#define SSL_WRITE_IRQ 7 -+#define ACCEPT_IRQ 8 -+#define MCONSOLE_IRQ 9 -+#define WINCH_IRQ 10 -+#define SIGIO_WRITE_IRQ 11 -+#define TELNETD_IRQ 12 -+#define XTERM_IRQ 13 -+#define RANDOM_IRQ 14 -+ -+#define LAST_IRQ RANDOM_IRQ -+#define NR_IRQS (LAST_IRQ + 1) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/irqflags.h -@@ -0,0 +1,42 @@ -+#ifndef __UM_IRQFLAGS_H -+#define __UM_IRQFLAGS_H -+ -+extern int get_signals(void); -+extern int set_signals(int enable); -+extern void block_signals(void); -+extern void unblock_signals(void); -+ -+static inline unsigned long arch_local_save_flags(void) -+{ -+ return get_signals(); -+} -+ -+static inline void arch_local_irq_restore(unsigned long flags) -+{ -+ set_signals(flags); -+} -+ -+static inline void arch_local_irq_enable(void) -+{ -+ unblock_signals(); -+} -+ -+static inline void arch_local_irq_disable(void) -+{ -+ block_signals(); -+} -+ -+static inline unsigned long arch_local_irq_save(void) -+{ -+ unsigned long flags; -+ flags = arch_local_save_flags(); -+ arch_local_irq_disable(); -+ return flags; -+} -+ -+static inline bool arch_irqs_disabled(void) -+{ -+ return arch_local_save_flags() == 0; -+} -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/kmap_types.h -@@ -0,0 +1,13 @@ -+/* -+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_KMAP_TYPES_H -+#define __UM_KMAP_TYPES_H -+ -+/* No more #include "asm/arch/kmap_types.h" ! */ -+ -+#define KM_TYPE_NR 14 -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/kvm_para.h -@@ -0,0 +1 @@ -+#include <asm-generic/kvm_para.h> ---- /dev/null -+++ b/arch/um/include/uapi/asm/mmu.h -@@ -0,0 +1,24 @@ -+/* -+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __ARCH_UM_MMU_H -+#define __ARCH_UM_MMU_H -+ -+#include <mm_id.h> -+#include <asm/mm_context.h> -+ -+typedef struct mm_context { -+ struct mm_id id; -+ struct uml_arch_mm_context arch; -+ struct page *stub_pages[2]; -+} mm_context_t; -+ -+extern void __switch_mm(struct mm_id * mm_idp); -+ -+/* Avoid tangled inclusion with asm/ldt.h */ -+extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm); -+extern void free_ldt(struct mm_context *mm); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/mmu_context.h -@@ -0,0 +1,58 @@ -+/* -+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_MMU_CONTEXT_H -+#define __UM_MMU_CONTEXT_H -+ -+#include <linux/sched.h> -+#include <asm/mmu.h> -+ -+extern void uml_setup_stubs(struct mm_struct *mm); -+extern void arch_exit_mmap(struct mm_struct *mm); -+ -+#define deactivate_mm(tsk,mm) do { } while (0) -+ -+extern void force_flush_all(void); -+ -+static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) -+{ -+ /* -+ * This is called by fs/exec.c and sys_unshare() -+ * when the new ->mm is used for the first time. -+ */ -+ __switch_mm(&new->context.id); -+ down_write(&new->mmap_sem); -+ uml_setup_stubs(new); -+ up_write(&new->mmap_sem); -+} -+ -+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, -+ struct task_struct *tsk) -+{ -+ unsigned cpu = smp_processor_id(); -+ -+ if(prev != next){ -+ cpumask_clear_cpu(cpu, mm_cpumask(prev)); -+ cpumask_set_cpu(cpu, mm_cpumask(next)); -+ if(next != &init_mm) -+ __switch_mm(&next->context.id); -+ } -+} -+ -+static inline void arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm) -+{ -+ uml_setup_stubs(mm); -+} -+ -+static inline void enter_lazy_tlb(struct mm_struct *mm, -+ struct task_struct *tsk) -+{ -+} -+ -+extern int init_new_context(struct task_struct *task, struct mm_struct *mm); -+ -+extern void destroy_context(struct mm_struct *mm); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/page.h -@@ -0,0 +1,122 @@ -+/* -+ * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com) -+ * Copyright 2003 PathScale, Inc. -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PAGE_H -+#define __UM_PAGE_H -+ -+#include <linux/const.h> -+ -+/* PAGE_SHIFT determines the page size */ -+#define PAGE_SHIFT 12 -+#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) -+#define PAGE_MASK (~(PAGE_SIZE-1)) -+ -+#ifndef __ASSEMBLY__ -+ -+struct page; -+ -+#include <linux/types.h> -+#include <asm/vm-flags.h> -+ -+/* -+ * These are used to make use of C type-checking.. -+ */ -+ -+#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) -+#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE) -+ -+#define clear_user_page(page, vaddr, pg) clear_page(page) -+#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -+ -+#if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT) -+ -+typedef struct { unsigned long pte_low, pte_high; } pte_t; -+typedef struct { unsigned long pmd; } pmd_t; -+typedef struct { unsigned long pgd; } pgd_t; -+#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32)) -+ -+#define pte_get_bits(pte, bits) ((pte).pte_low & (bits)) -+#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits)) -+#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits)) -+#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \ -+ smp_wmb(); \ -+ (to).pte_low = (from).pte_low; }) -+#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high) -+#define pte_set_val(pte, phys, prot) \ -+ ({ (pte).pte_high = (phys) >> 32; \ -+ (pte).pte_low = (phys) | pgprot_val(prot); }) -+ -+#define pmd_val(x) ((x).pmd) -+#define __pmd(x) ((pmd_t) { (x) } ) -+ -+typedef unsigned long long pfn_t; -+typedef unsigned long long phys_t; -+ -+#else -+ -+typedef struct { unsigned long pte; } pte_t; -+typedef struct { unsigned long pgd; } pgd_t; -+ -+#ifdef CONFIG_3_LEVEL_PGTABLES -+typedef struct { unsigned long pmd; } pmd_t; -+#define pmd_val(x) ((x).pmd) -+#define __pmd(x) ((pmd_t) { (x) } ) -+#endif -+ -+#define pte_val(x) ((x).pte) -+ -+ -+#define pte_get_bits(p, bits) ((p).pte & (bits)) -+#define pte_set_bits(p, bits) ((p).pte |= (bits)) -+#define pte_clear_bits(p, bits) ((p).pte &= ~(bits)) -+#define pte_copy(to, from) ((to).pte = (from).pte) -+#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE)) -+#define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot)) -+ -+typedef unsigned long pfn_t; -+typedef unsigned long phys_t; -+ -+#endif -+ -+typedef struct { unsigned long pgprot; } pgprot_t; -+ -+typedef struct page *pgtable_t; -+ -+#define pgd_val(x) ((x).pgd) -+#define pgprot_val(x) ((x).pgprot) -+ -+#define __pte(x) ((pte_t) { (x) } ) -+#define __pgd(x) ((pgd_t) { (x) } ) -+#define __pgprot(x) ((pgprot_t) { (x) } ) -+ -+extern unsigned long uml_physmem; -+ -+#define PAGE_OFFSET (uml_physmem) -+#define KERNELBASE PAGE_OFFSET -+ -+#define __va_space (8*1024*1024) -+ -+#include <mem.h> -+ -+/* Cast to unsigned long before casting to void * to avoid a warning from -+ * mmap_kmem about cutting a long long down to a void *. Not sure that -+ * casting is the right thing, but 32-bit UML can't have 64-bit virtual -+ * addresses -+ */ -+#define __pa(virt) to_phys((void *) (unsigned long) (virt)) -+#define __va(phys) to_virt((unsigned long) (phys)) -+ -+#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT)) -+#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT)) -+ -+#define pfn_valid(pfn) ((pfn) < max_mapnr) -+#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v))) -+ -+#include <asm-generic/memory_model.h> -+#include <asm-generic/getorder.h> -+ -+#endif /* __ASSEMBLY__ */ -+#endif /* __UM_PAGE_H */ ---- /dev/null -+++ b/arch/um/include/uapi/asm/pgalloc.h -@@ -0,0 +1,61 @@ -+/* -+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) -+ * Copyright 2003 PathScale, Inc. -+ * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PGALLOC_H -+#define __UM_PGALLOC_H -+ -+#include <linux/mm.h> -+ -+#define pmd_populate_kernel(mm, pmd, pte) \ -+ set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) -+ -+#define pmd_populate(mm, pmd, pte) \ -+ set_pmd(pmd, __pmd(_PAGE_TABLE + \ -+ ((unsigned long long)page_to_pfn(pte) << \ -+ (unsigned long long) PAGE_SHIFT))) -+#define pmd_pgtable(pmd) pmd_page(pmd) -+ -+/* -+ * Allocate and free page tables. -+ */ -+extern pgd_t *pgd_alloc(struct mm_struct *); -+extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); -+ -+extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); -+extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); -+ -+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -+{ -+ free_page((unsigned long) pte); -+} -+ -+static inline void pte_free(struct mm_struct *mm, pgtable_t pte) -+{ -+ pgtable_page_dtor(pte); -+ __free_page(pte); -+} -+ -+#define __pte_free_tlb(tlb,pte, address) \ -+do { \ -+ pgtable_page_dtor(pte); \ -+ tlb_remove_page((tlb),(pte)); \ -+} while (0) -+ -+#ifdef CONFIG_3_LEVEL_PGTABLES -+ -+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) -+{ -+ free_page((unsigned long)pmd); -+} -+ -+#define __pmd_free_tlb(tlb,x, address) tlb_remove_page((tlb),virt_to_page(x)) -+#endif -+ -+#define check_pgt_cache() do { } while (0) -+ -+#endif -+ ---- /dev/null -+++ b/arch/um/include/uapi/asm/pgtable-2level.h -@@ -0,0 +1,53 @@ -+/* -+ * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) -+ * Copyright 2003 PathScale, Inc. -+ * Derived from include/asm-i386/pgtable.h -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PGTABLE_2LEVEL_H -+#define __UM_PGTABLE_2LEVEL_H -+ -+#include <asm-generic/pgtable-nopmd.h> -+ -+/* PGDIR_SHIFT determines what a third-level page table entry can map */ -+ -+#define PGDIR_SHIFT 22 -+#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -+#define PGDIR_MASK (~(PGDIR_SIZE-1)) -+ -+/* -+ * entries per page directory level: the i386 is two-level, so -+ * we don't really have any PMD directory physically. -+ */ -+#define PTRS_PER_PTE 1024 -+#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE) -+#define PTRS_PER_PGD 1024 -+#define FIRST_USER_ADDRESS 0 -+ -+#define pte_ERROR(e) \ -+ printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \ -+ pte_val(e)) -+#define pgd_ERROR(e) \ -+ printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \ -+ pgd_val(e)) -+ -+static inline int pgd_newpage(pgd_t pgd) { return 0; } -+static inline void pgd_mkuptodate(pgd_t pgd) { } -+ -+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) -+ -+#define pte_pfn(x) phys_to_pfn(pte_val(x)) -+#define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot)) -+#define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot)) -+ -+/* -+ * Bits 0 through 4 are taken -+ */ -+#define PTE_FILE_MAX_BITS 27 -+ -+#define pte_to_pgoff(pte) (pte_val(pte) >> 5) -+ -+#define pgoff_to_pte(off) ((pte_t) { ((off) << 5) + _PAGE_FILE }) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/pgtable-3level.h -@@ -0,0 +1,136 @@ -+/* -+ * Copyright 2003 PathScale Inc -+ * Derived from include/asm-i386/pgtable.h -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PGTABLE_3LEVEL_H -+#define __UM_PGTABLE_3LEVEL_H -+ -+#include <asm-generic/pgtable-nopud.h> -+ -+/* PGDIR_SHIFT determines what a third-level page table entry can map */ -+ -+#ifdef CONFIG_64BIT -+#define PGDIR_SHIFT 30 -+#else -+#define PGDIR_SHIFT 31 -+#endif -+#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -+#define PGDIR_MASK (~(PGDIR_SIZE-1)) -+ -+/* PMD_SHIFT determines the size of the area a second-level page table can -+ * map -+ */ -+ -+#define PMD_SHIFT 21 -+#define PMD_SIZE (1UL << PMD_SHIFT) -+#define PMD_MASK (~(PMD_SIZE-1)) -+ -+/* -+ * entries per page directory level -+ */ -+ -+#define PTRS_PER_PTE 512 -+#ifdef CONFIG_64BIT -+#define PTRS_PER_PMD 512 -+#define PTRS_PER_PGD 512 -+#else -+#define PTRS_PER_PMD 1024 -+#define PTRS_PER_PGD 1024 -+#endif -+ -+#define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE) -+#define FIRST_USER_ADDRESS 0 -+ -+#define pte_ERROR(e) \ -+ printk("%s:%d: bad pte %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -+ pte_val(e)) -+#define pmd_ERROR(e) \ -+ printk("%s:%d: bad pmd %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -+ pmd_val(e)) -+#define pgd_ERROR(e) \ -+ printk("%s:%d: bad pgd %p(%016lx).\n", __FILE__, __LINE__, &(e), \ -+ pgd_val(e)) -+ -+#define pud_none(x) (!(pud_val(x) & ~_PAGE_NEWPAGE)) -+#define pud_bad(x) ((pud_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) -+#define pud_present(x) (pud_val(x) & _PAGE_PRESENT) -+#define pud_populate(mm, pud, pmd) \ -+ set_pud(pud, __pud(_PAGE_TABLE + __pa(pmd))) -+ -+#ifdef CONFIG_64BIT -+#define set_pud(pudptr, pudval) set_64bit((u64 *) (pudptr), pud_val(pudval)) -+#else -+#define set_pud(pudptr, pudval) (*(pudptr) = (pudval)) -+#endif -+ -+static inline int pgd_newpage(pgd_t pgd) -+{ -+ return(pgd_val(pgd) & _PAGE_NEWPAGE); -+} -+ -+static inline void pgd_mkuptodate(pgd_t pgd) { pgd_val(pgd) &= ~_PAGE_NEWPAGE; } -+ -+#ifdef CONFIG_64BIT -+#define set_pmd(pmdptr, pmdval) set_64bit((u64 *) (pmdptr), pmd_val(pmdval)) -+#else -+#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) -+#endif -+ -+struct mm_struct; -+extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address); -+ -+static inline void pud_clear (pud_t *pud) -+{ -+ set_pud(pud, __pud(_PAGE_NEWPAGE)); -+} -+ -+#define pud_page(pud) phys_to_page(pud_val(pud) & PAGE_MASK) -+#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PAGE_MASK)) -+ -+/* Find an entry in the second-level page table.. */ -+#define pmd_offset(pud, address) ((pmd_t *) pud_page_vaddr(*(pud)) + \ -+ pmd_index(address)) -+ -+static inline unsigned long pte_pfn(pte_t pte) -+{ -+ return phys_to_pfn(pte_val(pte)); -+} -+ -+static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot) -+{ -+ pte_t pte; -+ phys_t phys = pfn_to_phys(page_nr); -+ -+ pte_set_val(pte, phys, pgprot); -+ return pte; -+} -+ -+static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot) -+{ -+ return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot)); -+} -+ -+/* -+ * Bits 0 through 3 are taken in the low part of the pte, -+ * put the 32 bits of offset into the high part. -+ */ -+#define PTE_FILE_MAX_BITS 32 -+ -+#ifdef CONFIG_64BIT -+ -+#define pte_to_pgoff(p) ((p).pte >> 32) -+ -+#define pgoff_to_pte(off) ((pte_t) { ((off) << 32) | _PAGE_FILE }) -+ -+#else -+ -+#define pte_to_pgoff(pte) ((pte).pte_high) -+ -+#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) }) -+ -+#endif -+ -+#endif -+ ---- /dev/null -+++ b/arch/um/include/uapi/asm/pgtable.h -@@ -0,0 +1,375 @@ -+/* -+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Copyright 2003 PathScale, Inc. -+ * Derived from include/asm-i386/pgtable.h -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PGTABLE_H -+#define __UM_PGTABLE_H -+ -+#include <asm/fixmap.h> -+ -+#define _PAGE_PRESENT 0x001 -+#define _PAGE_NEWPAGE 0x002 -+#define _PAGE_NEWPROT 0x004 -+#define _PAGE_RW 0x020 -+#define _PAGE_USER 0x040 -+#define _PAGE_ACCESSED 0x080 -+#define _PAGE_DIRTY 0x100 -+/* If _PAGE_PRESENT is clear, we use these: */ -+#define _PAGE_FILE 0x008 /* nonlinear file mapping, saved PTE; unset:swap */ -+#define _PAGE_PROTNONE 0x010 /* if the user mapped it with PROT_NONE; -+ pte_present gives true */ -+ -+#ifdef CONFIG_3_LEVEL_PGTABLES -+#include <asm/pgtable-3level.h> -+#else -+#include <asm/pgtable-2level.h> -+#endif -+ -+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -+ -+/* zero page used for uninitialized stuff */ -+extern unsigned long *empty_zero_page; -+ -+#define pgtable_cache_init() do ; while (0) -+ -+/* Just any arbitrary offset to the start of the vmalloc VM area: the -+ * current 8MB value just means that there will be a 8MB "hole" after the -+ * physical memory until the kernel virtual memory starts. That means that -+ * any out-of-bounds memory accesses will hopefully be caught. -+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced -+ * area for the same reason. ;) -+ */ -+ -+extern unsigned long end_iomem; -+ -+#define VMALLOC_OFFSET (__va_space) -+#define VMALLOC_START ((end_iomem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) -+#define PKMAP_BASE ((FIXADDR_START - LAST_PKMAP * PAGE_SIZE) & PMD_MASK) -+#ifdef CONFIG_HIGHMEM -+# define VMALLOC_END (PKMAP_BASE-2*PAGE_SIZE) -+#else -+# define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE) -+#endif -+#define MODULES_VADDR VMALLOC_START -+#define MODULES_END VMALLOC_END -+#define MODULES_LEN (MODULES_VADDR - MODULES_END) -+ -+#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) -+#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) -+#define __PAGE_KERNEL_EXEC \ -+ (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) -+#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED) -+#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED) -+#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) -+#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED) -+#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED) -+#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC) -+ -+/* -+ * The i386 can't do page protection for execute, and considers that the same -+ * are read. -+ * Also, write permissions imply read permissions. This is the closest we can -+ * get.. -+ */ -+#define __P000 PAGE_NONE -+#define __P001 PAGE_READONLY -+#define __P010 PAGE_COPY -+#define __P011 PAGE_COPY -+#define __P100 PAGE_READONLY -+#define __P101 PAGE_READONLY -+#define __P110 PAGE_COPY -+#define __P111 PAGE_COPY -+ -+#define __S000 PAGE_NONE -+#define __S001 PAGE_READONLY -+#define __S010 PAGE_SHARED -+#define __S011 PAGE_SHARED -+#define __S100 PAGE_READONLY -+#define __S101 PAGE_READONLY -+#define __S110 PAGE_SHARED -+#define __S111 PAGE_SHARED -+ -+/* -+ * ZERO_PAGE is a global shared page that is always zero: used -+ * for zero-mapped memory areas etc.. -+ */ -+#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page) -+ -+#define pte_clear(mm,addr,xp) pte_set_val(*(xp), (phys_t) 0, __pgprot(_PAGE_NEWPAGE)) -+ -+#define pmd_none(x) (!((unsigned long)pmd_val(x) & ~_PAGE_NEWPAGE)) -+#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) -+ -+#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -+#define pmd_clear(xp) do { pmd_val(*(xp)) = _PAGE_NEWPAGE; } while (0) -+ -+#define pmd_newpage(x) (pmd_val(x) & _PAGE_NEWPAGE) -+#define pmd_mkuptodate(x) (pmd_val(x) &= ~_PAGE_NEWPAGE) -+ -+#define pud_newpage(x) (pud_val(x) & _PAGE_NEWPAGE) -+#define pud_mkuptodate(x) (pud_val(x) &= ~_PAGE_NEWPAGE) -+ -+#define pmd_page(pmd) phys_to_page(pmd_val(pmd) & PAGE_MASK) -+ -+#define pte_page(x) pfn_to_page(pte_pfn(x)) -+ -+#define pte_present(x) pte_get_bits(x, (_PAGE_PRESENT | _PAGE_PROTNONE)) -+ -+/* -+ * ================================= -+ * Flags checking section. -+ * ================================= -+ */ -+ -+static inline int pte_none(pte_t pte) -+{ -+ return pte_is_zero(pte); -+} -+ -+/* -+ * The following only work if pte_present() is true. -+ * Undefined behaviour if not.. -+ */ -+static inline int pte_read(pte_t pte) -+{ -+ return((pte_get_bits(pte, _PAGE_USER)) && -+ !(pte_get_bits(pte, _PAGE_PROTNONE))); -+} -+ -+static inline int pte_exec(pte_t pte){ -+ return((pte_get_bits(pte, _PAGE_USER)) && -+ !(pte_get_bits(pte, _PAGE_PROTNONE))); -+} -+ -+static inline int pte_write(pte_t pte) -+{ -+ return((pte_get_bits(pte, _PAGE_RW)) && -+ !(pte_get_bits(pte, _PAGE_PROTNONE))); -+} -+ -+/* -+ * The following only works if pte_present() is not true. -+ */ -+static inline int pte_file(pte_t pte) -+{ -+ return pte_get_bits(pte, _PAGE_FILE); -+} -+ -+static inline int pte_dirty(pte_t pte) -+{ -+ return pte_get_bits(pte, _PAGE_DIRTY); -+} -+ -+static inline int pte_young(pte_t pte) -+{ -+ return pte_get_bits(pte, _PAGE_ACCESSED); -+} -+ -+static inline int pte_newpage(pte_t pte) -+{ -+ return pte_get_bits(pte, _PAGE_NEWPAGE); -+} -+ -+static inline int pte_newprot(pte_t pte) -+{ -+ return(pte_present(pte) && (pte_get_bits(pte, _PAGE_NEWPROT))); -+} -+ -+static inline int pte_special(pte_t pte) -+{ -+ return 0; -+} -+ -+/* -+ * ================================= -+ * Flags setting section. -+ * ================================= -+ */ -+ -+static inline pte_t pte_mknewprot(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_NEWPROT); -+ return(pte); -+} -+ -+static inline pte_t pte_mkclean(pte_t pte) -+{ -+ pte_clear_bits(pte, _PAGE_DIRTY); -+ return(pte); -+} -+ -+static inline pte_t pte_mkold(pte_t pte) -+{ -+ pte_clear_bits(pte, _PAGE_ACCESSED); -+ return(pte); -+} -+ -+static inline pte_t pte_wrprotect(pte_t pte) -+{ -+ pte_clear_bits(pte, _PAGE_RW); -+ return(pte_mknewprot(pte)); -+} -+ -+static inline pte_t pte_mkread(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_USER); -+ return(pte_mknewprot(pte)); -+} -+ -+static inline pte_t pte_mkdirty(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_DIRTY); -+ return(pte); -+} -+ -+static inline pte_t pte_mkyoung(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_ACCESSED); -+ return(pte); -+} -+ -+static inline pte_t pte_mkwrite(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_RW); -+ return(pte_mknewprot(pte)); -+} -+ -+static inline pte_t pte_mkuptodate(pte_t pte) -+{ -+ pte_clear_bits(pte, _PAGE_NEWPAGE); -+ if(pte_present(pte)) -+ pte_clear_bits(pte, _PAGE_NEWPROT); -+ return(pte); -+} -+ -+static inline pte_t pte_mknewpage(pte_t pte) -+{ -+ pte_set_bits(pte, _PAGE_NEWPAGE); -+ return(pte); -+} -+ -+static inline pte_t pte_mkspecial(pte_t pte) -+{ -+ return(pte); -+} -+ -+static inline void set_pte(pte_t *pteptr, pte_t pteval) -+{ -+ pte_copy(*pteptr, pteval); -+ -+ /* If it's a swap entry, it needs to be marked _PAGE_NEWPAGE so -+ * fix_range knows to unmap it. _PAGE_NEWPROT is specific to -+ * mapped pages. -+ */ -+ -+ *pteptr = pte_mknewpage(*pteptr); -+ if(pte_present(*pteptr)) *pteptr = pte_mknewprot(*pteptr); -+} -+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) -+ -+#define __HAVE_ARCH_PTE_SAME -+static inline int pte_same(pte_t pte_a, pte_t pte_b) -+{ -+ return !((pte_val(pte_a) ^ pte_val(pte_b)) & ~_PAGE_NEWPAGE); -+} -+ -+/* -+ * Conversion functions: convert a page and protection to a page entry, -+ * and a page entry and page directory to the page they refer to. -+ */ -+ -+#define phys_to_page(phys) pfn_to_page(phys_to_pfn(phys)) -+#define __virt_to_page(virt) phys_to_page(__pa(virt)) -+#define page_to_phys(page) pfn_to_phys((pfn_t) page_to_pfn(page)) -+#define virt_to_page(addr) __virt_to_page((const unsigned long) addr) -+ -+#define mk_pte(page, pgprot) \ -+ ({ pte_t pte; \ -+ \ -+ pte_set_val(pte, page_to_phys(page), (pgprot)); \ -+ if (pte_present(pte)) \ -+ pte_mknewprot(pte_mknewpage(pte)); \ -+ pte;}) -+ -+static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) -+{ -+ pte_set_val(pte, (pte_val(pte) & _PAGE_CHG_MASK), newprot); -+ return pte; -+} -+ -+/* -+ * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] -+ * -+ * this macro returns the index of the entry in the pgd page which would -+ * control the given virtual address -+ */ -+#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) -+ -+/* -+ * pgd_offset() returns a (pgd_t *) -+ * pgd_index() is used get the offset into the pgd page's array of pgd_t's; -+ */ -+#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) -+ -+/* -+ * a shortcut which implies the use of the kernel's pgd, instead -+ * of a process's -+ */ -+#define pgd_offset_k(address) pgd_offset(&init_mm, address) -+ -+/* -+ * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD] -+ * -+ * this macro returns the index of the entry in the pmd page which would -+ * control the given virtual address -+ */ -+#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) -+#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) -+ -+#define pmd_page_vaddr(pmd) \ -+ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) -+ -+/* -+ * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE] -+ * -+ * this macro returns the index of the entry in the pte page which would -+ * control the given virtual address -+ */ -+#define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -+#define pte_offset_kernel(dir, address) \ -+ ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) -+#define pte_offset_map(dir, address) \ -+ ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) -+#define pte_unmap(pte) do { } while (0) -+ -+struct mm_struct; -+extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr); -+ -+#define update_mmu_cache(vma,address,ptep) do ; while (0) -+ -+/* Encode and de-code a swap entry */ -+#define __swp_type(x) (((x).val >> 5) & 0x1f) -+#define __swp_offset(x) ((x).val >> 11) -+ -+#define __swp_entry(type, offset) \ -+ ((swp_entry_t) { ((type) << 5) | ((offset) << 11) }) -+#define __pte_to_swp_entry(pte) \ -+ ((swp_entry_t) { pte_val(pte_mkuptodate(pte)) }) -+#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -+ -+#define kern_addr_valid(addr) (1) -+ -+#include <asm-generic/pgtable.h> -+ -+/* Clear a kernel PTE and flush it from the TLB */ -+#define kpte_clear_flush(ptep, vaddr) \ -+do { \ -+ pte_clear(&init_mm, (vaddr), (ptep)); \ -+ __flush_tlb_one((vaddr)); \ -+} while (0) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/processor-generic.h -@@ -0,0 +1,115 @@ -+/* -+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PROCESSOR_GENERIC_H -+#define __UM_PROCESSOR_GENERIC_H -+ -+struct pt_regs; -+ -+struct task_struct; -+ -+#include <asm/ptrace.h> -+#include <registers.h> -+#include <sysdep/archsetjmp.h> -+ -+#include <linux/prefetch.h> -+ -+struct mm_struct; -+ -+struct thread_struct { -+ struct pt_regs regs; -+ struct pt_regs *segv_regs; -+ int singlestep_syscall; -+ void *fault_addr; -+ jmp_buf *fault_catcher; -+ struct task_struct *prev_sched; -+ struct arch_thread arch; -+ jmp_buf switch_buf; -+ struct { -+ int op; -+ union { -+ struct { -+ int pid; -+ } fork, exec; -+ struct { -+ int (*proc)(void *); -+ void *arg; -+ } thread; -+ struct { -+ void (*proc)(void *); -+ void *arg; -+ } cb; -+ } u; -+ } request; -+}; -+ -+#define INIT_THREAD \ -+{ \ -+ .regs = EMPTY_REGS, \ -+ .fault_addr = NULL, \ -+ .prev_sched = NULL, \ -+ .arch = INIT_ARCH_THREAD, \ -+ .request = { 0 } \ -+} -+ -+static inline void release_thread(struct task_struct *task) -+{ -+} -+ -+extern unsigned long thread_saved_pc(struct task_struct *t); -+ -+static inline void mm_copy_segments(struct mm_struct *from_mm, -+ struct mm_struct *new_mm) -+{ -+} -+ -+#define init_stack (init_thread_union.stack) -+ -+/* -+ * User space process size: 3GB (default). -+ */ -+extern unsigned long task_size; -+ -+#define TASK_SIZE (task_size) -+ -+#undef STACK_TOP -+#undef STACK_TOP_MAX -+ -+extern unsigned long stacksizelim; -+ -+#define STACK_ROOM (stacksizelim) -+#define STACK_TOP (TASK_SIZE - 2 * PAGE_SIZE) -+#define STACK_TOP_MAX STACK_TOP -+ -+/* This decides where the kernel will search for a free chunk of vm -+ * space during mmap's. -+ */ -+#define TASK_UNMAPPED_BASE (0x40000000) -+ -+extern void start_thread(struct pt_regs *regs, unsigned long entry, -+ unsigned long stack); -+ -+struct cpuinfo_um { -+ unsigned long loops_per_jiffy; -+ int ipi_pipe[2]; -+}; -+ -+extern struct cpuinfo_um boot_cpu_data; -+ -+#define my_cpu_data cpu_data[smp_processor_id()] -+ -+#ifdef CONFIG_SMP -+extern struct cpuinfo_um cpu_data[]; -+#define current_cpu_data cpu_data[smp_processor_id()] -+#else -+#define cpu_data (&boot_cpu_data) -+#define current_cpu_data boot_cpu_data -+#endif -+ -+ -+#define KSTK_REG(tsk, reg) get_thread_reg(reg, &tsk->thread.switch_buf) -+extern unsigned long get_wchan(struct task_struct *p); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/ptrace-generic.h -@@ -0,0 +1,45 @@ -+/* -+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_PTRACE_GENERIC_H -+#define __UM_PTRACE_GENERIC_H -+ -+#ifndef __ASSEMBLY__ -+ -+#include <asm/ptrace-abi.h> -+#include <sysdep/ptrace.h> -+ -+struct pt_regs { -+ struct uml_pt_regs regs; -+}; -+ -+#define arch_has_single_step() (1) -+ -+#define EMPTY_REGS { .regs = EMPTY_UML_PT_REGS } -+ -+#define PT_REGS_IP(r) UPT_IP(&(r)->regs) -+#define PT_REGS_SP(r) UPT_SP(&(r)->regs) -+ -+#define PT_REGS_RESTART_SYSCALL(r) UPT_RESTART_SYSCALL(&(r)->regs) -+ -+#define PT_REGS_SYSCALL_NR(r) UPT_SYSCALL_NR(&(r)->regs) -+ -+#define instruction_pointer(regs) PT_REGS_IP(regs) -+ -+struct task_struct; -+ -+extern long subarch_ptrace(struct task_struct *child, long request, -+ unsigned long addr, unsigned long data); -+extern unsigned long getreg(struct task_struct *child, int regno); -+extern int putreg(struct task_struct *child, int regno, unsigned long value); -+ -+extern int arch_copy_tls(struct task_struct *new); -+extern void clear_flushed_tls(struct task_struct *task); -+extern void syscall_trace_enter(struct pt_regs *regs); -+extern void syscall_trace_leave(struct pt_regs *regs); -+ -+#endif -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/setup.h -@@ -0,0 +1,10 @@ -+#ifndef SETUP_H_INCLUDED -+#define SETUP_H_INCLUDED -+ -+/* POSIX mandated with _POSIX_ARG_MAX that we can rely on 4096 chars in the -+ * command line, so this choice is ok. -+ */ -+ -+#define COMMAND_LINE_SIZE 4096 -+ -+#endif /* SETUP_H_INCLUDED */ ---- /dev/null -+++ b/arch/um/include/uapi/asm/smp.h -@@ -0,0 +1,32 @@ -+#ifndef __UM_SMP_H -+#define __UM_SMP_H -+ -+#ifdef CONFIG_SMP -+ -+#include <linux/bitops.h> -+#include <asm/current.h> -+#include <linux/cpumask.h> -+ -+#define raw_smp_processor_id() (current_thread->cpu) -+ -+#define cpu_logical_map(n) (n) -+#define cpu_number_map(n) (n) -+extern int hard_smp_processor_id(void); -+#define NO_PROC_ID -1 -+ -+extern int ncpus; -+ -+ -+static inline void smp_cpus_done(unsigned int maxcpus) -+{ -+} -+ -+extern struct task_struct *idle_threads[NR_CPUS]; -+ -+#else -+ -+#define hard_smp_processor_id() 0 -+ -+#endif -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/sysrq.h -@@ -0,0 +1,7 @@ -+#ifndef __UM_SYSRQ_H -+#define __UM_SYSRQ_H -+ -+struct task_struct; -+extern void show_trace(struct task_struct* task, unsigned long *stack); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/thread_info.h -@@ -0,0 +1,78 @@ -+/* -+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_THREAD_INFO_H -+#define __UM_THREAD_INFO_H -+ -+#ifndef __ASSEMBLY__ -+ -+#include <asm/types.h> -+#include <asm/page.h> -+#include <asm/uaccess.h> -+ -+struct thread_info { -+ struct task_struct *task; /* main task structure */ -+ struct exec_domain *exec_domain; /* execution domain */ -+ unsigned long flags; /* low level flags */ -+ __u32 cpu; /* current CPU */ -+ int preempt_count; /* 0 => preemptable, -+ <0 => BUG */ -+ mm_segment_t addr_limit; /* thread address space: -+ 0-0xBFFFFFFF for user -+ 0-0xFFFFFFFF for kernel */ -+ struct restart_block restart_block; -+ struct thread_info *real_thread; /* Points to non-IRQ stack */ -+}; -+ -+#define INIT_THREAD_INFO(tsk) \ -+{ \ -+ .task = &tsk, \ -+ .exec_domain = &default_exec_domain, \ -+ .flags = 0, \ -+ .cpu = 0, \ -+ .preempt_count = INIT_PREEMPT_COUNT, \ -+ .addr_limit = KERNEL_DS, \ -+ .restart_block = { \ -+ .fn = do_no_restart_syscall, \ -+ }, \ -+ .real_thread = NULL, \ -+} -+ -+#define init_thread_info (init_thread_union.thread_info) -+#define init_stack (init_thread_union.stack) -+ -+#define THREAD_SIZE ((1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE) -+/* how to get the thread information struct from C */ -+static inline struct thread_info *current_thread_info(void) -+{ -+ struct thread_info *ti; -+ unsigned long mask = THREAD_SIZE - 1; -+ void *p; -+ -+ asm volatile ("" : "=r" (p) : "0" (&ti)); -+ ti = (struct thread_info *) (((unsigned long)p) & ~mask); -+ return ti; -+} -+ -+#define THREAD_SIZE_ORDER CONFIG_KERNEL_STACK_ORDER -+ -+#endif -+ -+#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ -+#define TIF_SIGPENDING 1 /* signal pending */ -+#define TIF_NEED_RESCHED 2 /* rescheduling necessary */ -+#define TIF_RESTART_BLOCK 4 -+#define TIF_MEMDIE 5 /* is terminating due to OOM killer */ -+#define TIF_SYSCALL_AUDIT 6 -+#define TIF_RESTORE_SIGMASK 7 -+#define TIF_NOTIFY_RESUME 8 -+ -+#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) -+#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) -+#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) -+#define _TIF_MEMDIE (1 << TIF_MEMDIE) -+#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/timex.h -@@ -0,0 +1,13 @@ -+#ifndef __UM_TIMEX_H -+#define __UM_TIMEX_H -+ -+typedef unsigned long cycles_t; -+ -+static inline cycles_t get_cycles (void) -+{ -+ return 0; -+} -+ -+#define CLOCK_TICK_RATE (HZ) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/tlb.h -@@ -0,0 +1,122 @@ -+#ifndef __UM_TLB_H -+#define __UM_TLB_H -+ -+#include <linux/pagemap.h> -+#include <linux/swap.h> -+#include <asm/percpu.h> -+#include <asm/pgalloc.h> -+#include <asm/tlbflush.h> -+ -+#define tlb_start_vma(tlb, vma) do { } while (0) -+#define tlb_end_vma(tlb, vma) do { } while (0) -+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) -+ -+/* struct mmu_gather is an opaque type used by the mm code for passing around -+ * any data needed by arch specific code for tlb_remove_page. -+ */ -+struct mmu_gather { -+ struct mm_struct *mm; -+ unsigned int need_flush; /* Really unmapped some ptes? */ -+ unsigned long start; -+ unsigned long end; -+ unsigned int fullmm; /* non-zero means full mm flush */ -+}; -+ -+static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, -+ unsigned long address) -+{ -+ if (tlb->start > address) -+ tlb->start = address; -+ if (tlb->end < address + PAGE_SIZE) -+ tlb->end = address + PAGE_SIZE; -+} -+ -+static inline void init_tlb_gather(struct mmu_gather *tlb) -+{ -+ tlb->need_flush = 0; -+ -+ tlb->start = TASK_SIZE; -+ tlb->end = 0; -+ -+ if (tlb->fullmm) { -+ tlb->start = 0; -+ tlb->end = TASK_SIZE; -+ } -+} -+ -+static inline void -+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) -+{ -+ tlb->mm = mm; -+ tlb->start = start; -+ tlb->end = end; -+ tlb->fullmm = !(start | (end+1)); -+ -+ init_tlb_gather(tlb); -+} -+ -+extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, -+ unsigned long end); -+ -+static inline void -+tlb_flush_mmu(struct mmu_gather *tlb) -+{ -+ if (!tlb->need_flush) -+ return; -+ -+ flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end); -+ init_tlb_gather(tlb); -+} -+ -+/* tlb_finish_mmu -+ * Called at the end of the shootdown operation to free up any resources -+ * that were required. -+ */ -+static inline void -+tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) -+{ -+ tlb_flush_mmu(tlb); -+ -+ /* keep the page table cache within bounds */ -+ check_pgt_cache(); -+} -+ -+/* tlb_remove_page -+ * Must perform the equivalent to __free_pte(pte_get_and_clear(ptep)), -+ * while handling the additional races in SMP caused by other CPUs -+ * caching valid mappings in their TLBs. -+ */ -+static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -+{ -+ tlb->need_flush = 1; -+ free_page_and_swap_cache(page); -+ return 1; /* avoid calling tlb_flush_mmu */ -+} -+ -+static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -+{ -+ __tlb_remove_page(tlb, page); -+} -+ -+/** -+ * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation. -+ * -+ * Record the fact that pte's were really umapped in ->need_flush, so we can -+ * later optimise away the tlb invalidate. This helps when userspace is -+ * unmapping already-unmapped pages, which happens quite a lot. -+ */ -+#define tlb_remove_tlb_entry(tlb, ptep, address) \ -+ do { \ -+ tlb->need_flush = 1; \ -+ __tlb_remove_tlb_entry(tlb, ptep, address); \ -+ } while (0) -+ -+#define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr) -+ -+#define pud_free_tlb(tlb, pudp, addr) __pud_free_tlb(tlb, pudp, addr) -+ -+#define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr) -+ -+#define tlb_migrate_finish(mm) do {} while (0) -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/tlbflush.h -@@ -0,0 +1,31 @@ -+/* -+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_TLBFLUSH_H -+#define __UM_TLBFLUSH_H -+ -+#include <linux/mm.h> -+ -+/* -+ * TLB flushing: -+ * -+ * - flush_tlb() flushes the current mm struct TLBs -+ * - flush_tlb_all() flushes all processes TLBs -+ * - flush_tlb_mm(mm) flushes the specified mm context TLB's -+ * - flush_tlb_page(vma, vmaddr) flushes one page -+ * - flush_tlb_kernel_vm() flushes the kernel vm area -+ * - flush_tlb_range(vma, start, end) flushes a range of pages -+ */ -+ -+extern void flush_tlb_all(void); -+extern void flush_tlb_mm(struct mm_struct *mm); -+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, -+ unsigned long end); -+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long address); -+extern void flush_tlb_kernel_vm(void); -+extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); -+extern void __flush_tlb_one(unsigned long addr); -+ -+#endif ---- /dev/null -+++ b/arch/um/include/uapi/asm/uaccess.h -@@ -0,0 +1,178 @@ -+/* -+ * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) -+ * Licensed under the GPL -+ */ -+ -+#ifndef __UM_UACCESS_H -+#define __UM_UACCESS_H -+ -+/* thread_info has a mm_segment_t in it, so put the definition up here */ -+typedef struct { -+ unsigned long seg; -+} mm_segment_t; -+ -+#include <linux/thread_info.h> -+#include <linux/errno.h> -+#include <asm/processor.h> -+#include <asm/elf.h> -+ -+#define VERIFY_READ 0 -+#define VERIFY_WRITE 1 -+ -+/* -+ * The fs value determines whether argument validity checking should be -+ * performed or not. If get_fs() == USER_DS, checking is performed, with -+ * get_fs() == KERNEL_DS, checking is bypassed. -+ * -+ * For historical reasons, these macros are grossly misnamed. -+ */ -+ -+#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -+ -+#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF) -+#define USER_DS MAKE_MM_SEG(TASK_SIZE) -+ -+#define get_ds() (KERNEL_DS) -+#define get_fs() (current_thread_info()->addr_limit) -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) -+ -+#define segment_eq(a, b) ((a).seg == (b).seg) -+ -+#define __under_task_size(addr, size) \ -+ (((unsigned long) (addr) < TASK_SIZE) && \ -+ (((unsigned long) (addr) + (size)) < TASK_SIZE)) -+ -+#define __access_ok_vsyscall(type, addr, size) \ -+ ((type == VERIFY_READ) && \ -+ ((unsigned long) (addr) >= FIXADDR_USER_START) && \ -+ ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \ -+ ((unsigned long) (addr) + (size) >= (unsigned long)(addr))) -+ -+#define __addr_range_nowrap(addr, size) \ -+ ((unsigned long) (addr) <= ((unsigned long) (addr) + (size))) -+ -+#define access_ok(type, addr, size) \ -+ (__addr_range_nowrap(addr, size) && \ -+ (__under_task_size(addr, size) || \ -+ __access_ok_vsyscall(type, addr, size) || \ -+ segment_eq(get_fs(), KERNEL_DS))) -+ -+extern int copy_from_user(void *to, const void __user *from, int n); -+extern int copy_to_user(void __user *to, const void *from, int n); -+ -+/* -+ * strncpy_from_user: - Copy a NUL terminated string from userspace. -+ * @dst: Destination address, in kernel space. This buffer must be at -+ * least @count bytes long. -+ * @src: Source address, in user space. -+ * @count: Maximum number of bytes to copy, including the trailing NUL. -+ * -+ * Copies a NUL-terminated string from userspace to kernel space. -+ * -+ * On success, returns the length of the string (not including the trailing -+ * NUL). -+ * -+ * If access to userspace fails, returns -EFAULT (some data may have been -+ * copied). -+ * -+ * If @count is smaller than the length of the string, copies @count bytes -+ * and returns @count. -+ */ -+ -+extern int strncpy_from_user(char *dst, const char __user *src, int count); -+ -+/* -+ * __clear_user: - Zero a block of memory in user space, with less checking. -+ * @to: Destination address, in user space. -+ * @n: Number of bytes to zero. -+ * -+ * Zero a block of memory in user space. Caller must check -+ * the specified block with access_ok() before calling this function. -+ * -+ * Returns number of bytes that could not be cleared. -+ * On success, this will be zero. -+ */ -+extern int __clear_user(void __user *mem, int len); -+ -+/* -+ * clear_user: - Zero a block of memory in user space. -+ * @to: Destination address, in user space. -+ * @n: Number of bytes to zero. -+ * -+ * Zero a block of memory in user space. -+ * -+ * Returns number of bytes that could not be cleared. -+ * On success, this will be zero. -+ */ -+extern int clear_user(void __user *mem, int len); -+ -+/* -+ * strlen_user: - Get the size of a string in user space. -+ * @str: The string to measure. -+ * @n: The maximum valid length -+ * -+ * Get the size of a NUL-terminated string in user space. -+ * -+ * Returns the size of the string INCLUDING the terminating NUL. -+ * On exception, returns 0. -+ * If the string is too long, returns a value greater than @n. -+ */ -+extern int strnlen_user(const void __user *str, int len); -+ -+#define __copy_from_user(to, from, n) copy_from_user(to, from, n) -+ -+#define __copy_to_user(to, from, n) copy_to_user(to, from, n) -+ -+#define __copy_to_user_inatomic __copy_to_user -+#define __copy_from_user_inatomic __copy_from_user -+ -+#define __get_user(x, ptr) \ -+({ \ -+ const __typeof__(*(ptr)) __user *__private_ptr = (ptr); \ -+ __typeof__(x) __private_val; \ -+ int __private_ret = -EFAULT; \ -+ (x) = (__typeof__(*(__private_ptr)))0; \ -+ if (__copy_from_user((__force void *)&__private_val, (__private_ptr),\ -+ sizeof(*(__private_ptr))) == 0) { \ -+ (x) = (__typeof__(*(__private_ptr))) __private_val; \ -+ __private_ret = 0; \ -+ } \ -+ __private_ret; \ -+}) -+ -+#define get_user(x, ptr) \ -+({ \ -+ const __typeof__((*(ptr))) __user *private_ptr = (ptr); \ -+ (access_ok(VERIFY_READ, private_ptr, sizeof(*private_ptr)) ? \ -+ __get_user(x, private_ptr) : ((x) = (__typeof__(*ptr))0, -EFAULT)); \ -+}) -+ -+#define __put_user(x, ptr) \ -+({ \ -+ __typeof__(*(ptr)) __user *__private_ptr = ptr; \ -+ __typeof__(*(__private_ptr)) __private_val; \ -+ int __private_ret = -EFAULT; \ -+ __private_val = (__typeof__(*(__private_ptr))) (x); \ -+ if (__copy_to_user((__private_ptr), &__private_val, \ -+ sizeof(*(__private_ptr))) == 0) { \ -+ __private_ret = 0; \ -+ } \ -+ __private_ret; \ -+}) -+ -+#define put_user(x, ptr) \ -+({ \ -+ __typeof__(*(ptr)) __user *private_ptr = (ptr); \ -+ (access_ok(VERIFY_WRITE, private_ptr, sizeof(*private_ptr)) ? \ -+ __put_user(x, private_ptr) : -EFAULT); \ -+}) -+ -+#define strlen_user(str) strnlen_user(str, ~0U >> 1) -+ -+struct exception_table_entry -+{ -+ unsigned long insn; -+ unsigned long fixup; -+}; -+ -+#endif diff --git a/target/linux/uml/patches-3.14/101-mconsole-exec.patch b/target/linux/uml/patches-3.14/101-mconsole-exec.patch deleted file mode 100644 index e94b2ca0fa..0000000000 --- a/target/linux/uml/patches-3.14/101-mconsole-exec.patch +++ /dev/null @@ -1,211 +0,0 @@ -# -# Minimalist mconsole exec patch -# -# 3.10 version (with bit more synchronous behavior) by fingon at iki dot fi -# Adaptation to kernel 3.3.8 made by David Fernández (david at dit.upm.es) for -# Starting point: mconsole-exec-2.6.30.patch for kernel 2.6.30 -# Author of original patch: Paolo Giarrusso, aka Blaisorblade -# (http://www.user-mode-linux.org/~blaisorblade) -# -# Known misfeatures: -# -# - If output is too long, blocks (and breaks horribly) -# (this misfeature from 3.10 patches, when minimalizing the patch; -# workaround: redirect to a shared filesystem if long output is expected) -# -# - Nothing useful is done with stdin -# ---- a/arch/um/drivers/mconsole.h -+++ b/arch/um/drivers/mconsole.h -@@ -85,6 +85,7 @@ extern void mconsole_cad(struct mc_reque - extern void mconsole_stop(struct mc_request *req); - extern void mconsole_go(struct mc_request *req); - extern void mconsole_log(struct mc_request *req); -+extern void mconsole_exec(struct mc_request *req); - extern void mconsole_proc(struct mc_request *req); - extern void mconsole_stack(struct mc_request *req); - ---- a/arch/um/drivers/mconsole_kern.c -+++ b/arch/um/drivers/mconsole_kern.c -@@ -4,6 +4,7 @@ - * Licensed under the GPL - */ - -+#include "linux/kmod.h" - #include <linux/console.h> - #include <linux/ctype.h> - #include <linux/string.h> -@@ -24,6 +25,7 @@ - #include <linux/fs.h> - #include <linux/mount.h> - #include <linux/file.h> -+#include <linux/completion.h> - #include <asm/uaccess.h> - #include <asm/switch_to.h> - -@@ -121,6 +123,59 @@ void mconsole_log(struct mc_request *req - mconsole_reply(req, "", 0, 0); - } - -+void mconsole_exec(struct mc_request *req) -+{ -+ struct subprocess_info *sub_info; -+ int res, len; -+ struct file *out; -+ char buf[MCONSOLE_MAX_DATA]; -+ -+ char *envp[] = { -+ "HOME=/", "TERM=linux", -+ "PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin", -+ NULL -+ }; -+ char *argv[] = { -+ "/bin/sh", "-c", -+ req->request.data + strlen("exec "), -+ NULL -+ }; -+ -+ sub_info = call_usermodehelper_setup("/bin/sh", argv, envp, GFP_ATOMIC, NULL, NULL, NULL); -+ if (sub_info == NULL) { -+ mconsole_reply(req, "call_usermodehelper_setup failed", 1, 0); -+ return; -+ } -+ res = call_usermodehelper_stdoutpipe(sub_info, &out); -+ if (res < 0) { -+ kfree(sub_info); -+ mconsole_reply(req, "call_usermodehelper_stdoutpipe failed", 1, 0); -+ return; -+ } -+ -+ res = call_usermodehelper_exec(sub_info, UMH_WAIT_PROC); -+ if (res < 0) { -+ kfree(sub_info); -+ mconsole_reply(req, "call_usermodehelper_exec failed", 1, 0); -+ return; -+ } -+ -+ for (;;) { -+ len = out->f_op->read(out, buf, sizeof(buf), &out->f_pos); -+ if (len < 0) { -+ mconsole_reply(req, "reading output failed", 1, 0); -+ break; -+ } -+ if (len == 0) -+ break; -+ mconsole_reply_len(req, buf, len, 0, 1); -+ } -+ fput(out); -+ -+ mconsole_reply_len(req, NULL, 0, 0, 0); -+} -+ -+ - void mconsole_proc(struct mc_request *req) - { - struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt; -@@ -187,6 +242,7 @@ void mconsole_proc(struct mc_request *re - stop - pause the UML; it will do nothing until it receives a 'go' \n\ - go - continue the UML after a 'stop' \n\ - log <string> - make UML enter <string> into the kernel log\n\ -+ exec <string> - pass <string> to /bin/sh -c synchronously\n\ - proc <file> - returns the contents of the UML's /proc/<file>\n\ - stack <pid> - returns the stack of the specified pid\n\ - " ---- a/arch/um/drivers/mconsole_user.c -+++ b/arch/um/drivers/mconsole_user.c -@@ -30,6 +30,7 @@ static struct mconsole_command commands[ - { "stop", mconsole_stop, MCONSOLE_PROC }, - { "go", mconsole_go, MCONSOLE_INTR }, - { "log", mconsole_log, MCONSOLE_INTR }, -+ { "exec", mconsole_exec, MCONSOLE_PROC }, - { "proc", mconsole_proc, MCONSOLE_PROC }, - { "stack", mconsole_stack, MCONSOLE_INTR }, - }; ---- a/arch/um/os-Linux/file.c -+++ b/arch/um/os-Linux/file.c -@@ -528,6 +528,8 @@ int os_create_unix_socket(const char *fi - - addr.sun_family = AF_UNIX; - -+ if (len > sizeof(addr.sun_path)) -+ len = sizeof(addr.sun_path); - snprintf(addr.sun_path, len, "%s", file); - - err = bind(sock, (struct sockaddr *) &addr, sizeof(addr)); ---- a/include/linux/kmod.h -+++ b/include/linux/kmod.h -@@ -62,6 +62,7 @@ struct subprocess_info { - int wait; - int retval; - int (*init)(struct subprocess_info *info, struct cred *new); -+ struct file *stdout; - void (*cleanup)(struct subprocess_info *info); - void *data; - }; -@@ -104,4 +105,6 @@ extern int usermodehelper_read_trylock(v - extern long usermodehelper_read_lock_wait(long timeout); - extern void usermodehelper_read_unlock(void); - -+int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info, struct file **filp); -+ - #endif /* __LINUX_KMOD_H__ */ ---- a/kernel/kmod.c -+++ b/kernel/kmod.c -@@ -39,6 +39,7 @@ - #include <linux/rwsem.h> - #include <linux/ptrace.h> - #include <linux/async.h> -+#include <linux/pipe_fs_i.h> - #include <asm/uaccess.h> - - #include <trace/events/module.h> -@@ -209,6 +210,28 @@ static int ____call_usermodehelper(void - flush_signal_handlers(current, 1); - spin_unlock_irq(¤t->sighand->siglock); - -+ /* Install output when needed */ -+ if (sub_info->stdout) { -+ struct files_struct *f = current->files; -+ struct fdtable *fdt; -+ -+ sys_close(1); -+ sys_close(2); -+ get_file(sub_info->stdout); -+ fd_install(1, sub_info->stdout); -+ fd_install(2, sub_info->stdout); -+ spin_lock(&f->file_lock); -+ fdt = files_fdtable(f); -+ __set_bit(1, fdt->open_fds); -+ __clear_bit(1, fdt->close_on_exec); -+ __set_bit(2, fdt->open_fds); -+ __clear_bit(2, fdt->close_on_exec); -+ spin_unlock(&f->file_lock); -+ -+ /* disallow core files */ -+ current->signal->rlim[RLIMIT_CORE] = (struct rlimit){0, 0}; -+ } -+ - /* We can run anywhere, unlike our parent keventd(). */ - set_cpus_allowed_ptr(current, cpu_all_mask); - -@@ -554,6 +577,20 @@ struct subprocess_info *call_usermodehel - } - EXPORT_SYMBOL(call_usermodehelper_setup); - -+int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info, -+ struct file **filp) -+{ -+ struct file *f[2]; -+ -+ if (create_pipe_files(f, 0)<0) -+ return PTR_ERR(f); -+ sub_info->stdout = f[1]; -+ *filp = f[0]; -+ return 0; -+} -+EXPORT_SYMBOL(call_usermodehelper_stdoutpipe); -+ -+ - /** - * call_usermodehelper_exec - start a usermode application - * @sub_info: information about the subprocessa diff --git a/target/linux/uml/patches-3.14/102-pseudo-random-mac.patch b/target/linux/uml/patches-3.14/102-pseudo-random-mac.patch deleted file mode 100644 index fc54f603c0..0000000000 --- a/target/linux/uml/patches-3.14/102-pseudo-random-mac.patch +++ /dev/null @@ -1,124 +0,0 @@ -=============================================================================== - -This patch makes MAC addresses of network interfaces predictable. In -particular, it adds a small routine that computes MAC addresses of based on -a SHA1 hash of the virtual machine name and interface ID. - -TECHNICAL INFORMATION: - -Applies to vanilla kernel 3.9.4. - -=============================================================================== ---- a/arch/um/Kconfig.net -+++ b/arch/um/Kconfig.net -@@ -21,6 +21,19 @@ config UML_NET - enable at least one of the following transport options to actually - make use of UML networking. - -+config UML_NET_RANDOM_MAC -+ bool "Use random MAC addresses for network interfaces" -+ default n -+ depends on UML_NET -+ help -+ Virtual network devices inside a User-Mode Linux instance must be -+ assigned a MAC (Ethernet) address. If none is specified on the UML -+ command line, one must be automatically computed. If this option is -+ enabled, a randomly generated address is used. Otherwise, if this -+ option is disabled, the address is generated from a SHA1 hash of -+ the umid of the UML instance and the interface name. The latter choice -+ is useful to make MAC addresses predictable. -+ - config UML_NET_ETHERTAP - bool "Ethertap transport" - depends on UML_NET ---- a/arch/um/drivers/net_kern.c -+++ b/arch/um/drivers/net_kern.c -@@ -25,6 +25,13 @@ - #include <net_kern.h> - #include <net_user.h> - -+#include <crypto/sha.h> -+#include <linux/string.h> -+#include <linux/crypto.h> -+#include <linux/err.h> -+#include <linux/scatterlist.h> -+#include "os.h" -+ - #define DRIVER_NAME "uml-netdev" - - static DEFINE_SPINLOCK(opened_lock); -@@ -295,11 +302,47 @@ static void uml_net_user_timer_expire(un - #endif - } - -+#ifndef CONFIG_UML_NET_RANDOM_MAC -+ -+/* Compute a SHA1 hash of the UML instance's id and -+ * * an interface name. */ -+static int compute_hash(const char *umid, const char *ifname, char *hash) { -+ char vmif[1024]; -+ struct scatterlist sg; -+ struct crypto_hash *tfm; -+ struct hash_desc desc; -+ -+ strcpy (vmif, umid); -+ strcat (vmif, ifname); -+ -+ tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); -+ if (IS_ERR(tfm)) -+ return 1; -+ -+ desc.tfm = tfm; -+ desc.flags = 0; -+ -+ sg_init_table(&sg, 1); -+ sg_set_buf(&sg, vmif, strlen(vmif)); -+ -+ if (crypto_hash_digest(&desc, &sg, strlen(vmif), hash)) { -+ crypto_free_hash(tfm); -+ return 1; -+ } -+ -+ crypto_free_hash(tfm); -+ -+ return 0; -+} -+ -+#endif -+ - static void setup_etheraddr(struct net_device *dev, char *str) - { - unsigned char *addr = dev->dev_addr; - char *end; - int i; -+ u8 hash[SHA1_DIGEST_SIZE]; - - if (str == NULL) - goto random; -@@ -340,9 +383,26 @@ static void setup_etheraddr(struct net_d - return; - - random: -+#ifdef CONFIG_UML_NET_RANDOM_MAC - printk(KERN_INFO - "Choosing a random ethernet address for device %s\n", dev->name); - eth_hw_addr_random(dev); -+#else -+ printk(KERN_INFO -+ "Computing a digest to use as ethernet address for device %s\n", dev->name); -+ if (compute_hash(get_umid(), dev->name, hash)) { -+ printk(KERN_WARNING -+ "Could not compute digest to use as ethernet address for device %s. " -+ "Using random address instead.\n", dev->name); -+ random_ether_addr(addr); -+ } -+ else { -+ for (i=0; i < 6; i++) -+ addr[i] = (hash[i] + hash[i+6]) % 0x100; -+ } -+ addr [0] &= 0xfe; /* clear multicast bit */ -+ addr [0] |= 0x02; /* set local assignment bit (IEEE802) */ -+#endif - } - - static DEFINE_SPINLOCK(devices_lock); |