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/******************************************************************************
* config.h
*
* A Linux-style configuration list.
*/
#ifndef __ARM_CONFIG_H__
#define __ARM_CONFIG_H__
#if defined(__aarch64__)
# define CONFIG_ARM_64 1
#elif defined(__arm__)
# define CONFIG_ARM_32 1
#endif
#if defined(CONFIG_ARM_64)
# define LONG_BYTEORDER 3
#else
# define LONG_BYTEORDER 2
#endif
#define BYTES_PER_LONG (1 << LONG_BYTEORDER)
#define BITS_PER_LONG (BYTES_PER_LONG << 3)
/* xen_ulong_t is always 64 bits */
#define BITS_PER_XEN_ULONG 64
#define CONFIG_PAGING_ASSISTANCE 1
#define CONFIG_PAGING_LEVELS 3
#define CONFIG_ARM 1
#define CONFIG_ARM_L1_CACHE_SHIFT 7 /* XXX */
#define CONFIG_SMP 1
#define CONFIG_VIDEO 1
#define OPT_CONSOLE_STR "dtuart"
#ifdef MAX_PHYS_CPUS
#define NR_CPUS MAX_PHYS_CPUS
#else
#define NR_CPUS 128
#endif
#define MAX_VIRT_CPUS 8
#define MAX_HVM_VCPUS MAX_VIRT_CPUS
#define asmlinkage /* Nothing needed */
#define __LINUX_ARM_ARCH__ 7
#define CONFIG_AEABI
/* Linkage for ARM */
#define __ALIGN .align 2
#define __ALIGN_STR ".align 2"
#ifdef __ASSEMBLY__
#define ALIGN __ALIGN
#define ALIGN_STR __ALIGN_STR
#define ENTRY(name) \
.globl name; \
ALIGN; \
name:
#define GLOBAL(name) \
.globl name; \
name:
#define END(name) \
.size name, .-name
#define ENDPROC(name) \
.type name, %function; \
END(name)
#endif
#include <xen/const.h>
/*
* Common ARM32 and ARM64 layout:
* 0 - 2M Unmapped
* 2M - 4M Xen text, data, bss
* 4M - 6M Fixmap: special-purpose 4K mapping slots
* 6M - 8M Early boot mapping of FDT
* 8M - 10M Early relocation address (used when relocating Xen)
*
* ARM32 layout:
* 0 - 8M <COMMON>
*
* 32M - 128M Frametable: 24 bytes per page for 16GB of RAM
* 256M - 1G VMAP: ioremap and early_ioremap use this virtual address
* space
*
* 1G - 2G Xenheap: always-mapped memory
* 2G - 4G Domheap: on-demand-mapped
*
* ARM64 layout:
* 0x0000000000000000 - 0x0000007fffffffff (512GB, L0 slot [0])
* 0 - 8M <COMMON>
*
* 1G - 2G VMAP: ioremap and early_ioremap
*
* 32G - 64G Frametable: 24 bytes per page for 5.3TB of RAM
*
* 0x0000008000000000 - 0x00007fffffffffff (127.5TB, L0 slots [1..255])
* Unused
*
* 0x0000800000000000 - 0x000084ffffffffff (5TB, L0 slots [256..265])
* 1:1 mapping of RAM
*
* 0x0000850000000000 - 0x0000ffffffffffff (123TB, L0 slots [266..511])
* Unused
*/
#define XEN_VIRT_START _AT(vaddr_t,0x00200000)
#define FIXMAP_ADDR(n) (_AT(vaddr_t,0x00400000) + (n) * PAGE_SIZE)
#define BOOT_FDT_VIRT_START _AT(vaddr_t,0x00600000)
#define BOOT_RELOC_VIRT_START _AT(vaddr_t,0x00800000)
#define HYPERVISOR_VIRT_START XEN_VIRT_START
#ifdef CONFIG_ARM_32
#define CONFIG_DOMAIN_PAGE 1
#define CONFIG_SEPARATE_XENHEAP 1
#define FRAMETABLE_VIRT_START _AT(vaddr_t,0x02000000)
#define VMAP_VIRT_START _AT(vaddr_t,0x10000000)
#define XENHEAP_VIRT_START _AT(vaddr_t,0x40000000)
#define XENHEAP_VIRT_END _AT(vaddr_t,0x7fffffff)
#define DOMHEAP_VIRT_START _AT(vaddr_t,0x80000000)
#define DOMHEAP_VIRT_END _AT(vaddr_t,0xffffffff)
#define VMAP_VIRT_END XENHEAP_VIRT_START
#define DOMHEAP_ENTRIES 1024 /* 1024 2MB mapping slots */
/* Number of domheap pagetable pages required at the second level (2MB mappings) */
#define DOMHEAP_SECOND_PAGES ((DOMHEAP_VIRT_END - DOMHEAP_VIRT_START + 1) >> FIRST_SHIFT)
#else /* ARM_64 */
#define SLOT0_ENTRY_BITS 39
#define SLOT0(slot) (_AT(vaddr_t,slot) << SLOT0_ENTRY_BITS)
#define SLOT0_ENTRY_SIZE SLOT0(1)
#define VMAP_VIRT_START GB(1)
#define VMAP_VIRT_END (VMAP_VIRT_START + GB(1) - 1)
#define FRAMETABLE_VIRT_START GB(32)
#define FRAMETABLE_VIRT_END (FRAMETABLE_VIRT_START + GB(32) - 1)
#define DIRECTMAP_VIRT_START SLOT0(256)
#define DIRECTMAP_SIZE (SLOT0_ENTRY_SIZE * (265-256))
#define DIRECTMAP_VIRT_END (DIRECTMAP_VIRT_START + DIRECTMAP_SIZE - 1)
#define XENHEAP_VIRT_START DIRECTMAP_VIRT_START
#define HYPERVISOR_VIRT_END DIRECTMAP_VIRT_END
#endif
/* Fixmap slots */
#define FIXMAP_CONSOLE 0 /* The primary UART */
#define FIXMAP_PT 1 /* Temporary mappings of pagetable pages */
#define FIXMAP_MISC 2 /* Ephemeral mappings of hardware */
#define FIXMAP_GICD 3 /* Interrupt controller: distributor registers */
#define FIXMAP_GICC1 4 /* Interrupt controller: CPU registers (first page) */
#define FIXMAP_GICC2 5 /* Interrupt controller: CPU registers (second page) */
#define FIXMAP_GICH 6 /* Interrupt controller: virtual interface control registers */
#define PAGE_SHIFT 12
#ifndef __ASSEMBLY__
#define PAGE_SIZE (1L << PAGE_SHIFT)
#else
#define PAGE_SIZE (1 << PAGE_SHIFT)
#endif
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_FLAG_MASK (~0)
#define STACK_ORDER 3
#define STACK_SIZE (PAGE_SIZE << STACK_ORDER)
#ifndef __ASSEMBLY__
extern unsigned long xen_phys_start;
extern unsigned long xenheap_phys_end;
extern unsigned long frametable_virt_end;
#endif
#define supervisor_mode_kernel (0)
#define watchdog_disable() ((void)0)
#define watchdog_enable() ((void)0)
#ifdef __ASSEMBLY__
/* Board-specific: regs base address for the GIC
* Theses constants are only intend to be used in assembly file
* because the DT is not yet parsed.
*/
#define GIC_DR_OFFSET 0x1000
#define GIC_CR_OFFSET 0x2000
#define GIC_HR_OFFSET 0x4000 /* Guess work http://lists.infradead.org/pipermail/linux-arm-kernel/2011-September/064219.html */
#define GIC_VR_OFFSET 0x6000 /* Virtual Machine CPU interface) */
#endif /* __ASSEMBLY__ */
#endif /* __ARM_CONFIG_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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