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-rw-r--r--extras/mini-os/arch/ia64/xencomm.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/extras/mini-os/arch/ia64/xencomm.c b/extras/mini-os/arch/ia64/xencomm.c
deleted file mode 100644
index 9719e49f18..0000000000
--- a/extras/mini-os/arch/ia64/xencomm.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * Copyright (C) 2006 Hollis Blanchard <hollisb@us.ibm.com>, IBM Corporation
- * Tristan Gingold <tristan.gingold@bull.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * This code is mostly taken from ia64-xen files xcom_mini.c and xencomm.c.
- * Changes: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com
- */
-
-
-#include <mini-os/os.h>
-#include <mini-os/errno.h>
-#include <mini-os/lib.h>
-#include <mini-os/hypervisor.h>
-#include <xen/xencomm.h>
-#include <xen/grant_table.h>
-
-
-#define XENCOMM_MINI_ADDRS 3
-struct xencomm_mini
-{
- struct xencomm_desc _desc;
- uint64_t address[XENCOMM_MINI_ADDRS];
-};
-
-#define xen_guest_handle(hnd) ((hnd).p)
-
-struct xencomm_handle;
-
-/* Translate virtual address to physical address. */
-uint64_t
-xencomm_vaddr_to_paddr(uint64_t vaddr)
-{
- if (IA64_RR_EXTR(vaddr) == 5)
- return KERN_VIRT_2_PHYS(vaddr);
-
- if (IA64_RR_EXTR(vaddr) == 7)
- return __pa(vaddr);
-
- return 0;
-}
-
-/* Inline version. To be used only on linear space (kernel space). */
-static struct xencomm_handle *
-xencomm_create_inline(void *buffer)
-{
- unsigned long paddr;
-
- paddr = xencomm_vaddr_to_paddr((unsigned long)buffer);
- return (struct xencomm_handle *)(paddr | XENCOMM_INLINE_FLAG);
-}
-
-#define min(a,b) (((a) < (b)) ? (a) : (b))
-static int
-xencomm_init_desc(struct xencomm_desc *desc, void *buffer, unsigned long bytes)
-{
- unsigned long recorded = 0;
- int i = 0;
-
- if ((buffer == NULL) && (bytes > 0))
- BUG();
-
- /* record the physical pages used */
- if (buffer == NULL)
- desc->nr_addrs = 0;
-
- while ((recorded < bytes) && (i < desc->nr_addrs)) {
- unsigned long vaddr = (unsigned long)buffer + recorded;
- unsigned long paddr;
- int offset;
- int chunksz;
-
- offset = vaddr % PAGE_SIZE; /* handle partial pages */
- chunksz = min(PAGE_SIZE - offset, bytes - recorded);
-
- paddr = xencomm_vaddr_to_paddr(vaddr);
- if (paddr == ~0UL) {
- printk("%s: couldn't translate vaddr %lx\n",
- __func__, vaddr);
- return -EINVAL;
- }
-
- desc->address[i++] = paddr;
- recorded += chunksz;
- }
- if (recorded < bytes) {
- printk("%s: could only translate %ld of %ld bytes\n",
- __func__, recorded, bytes);
- return -ENOSPC;
- }
-
- /* mark remaining addresses invalid (just for safety) */
- while (i < desc->nr_addrs)
- desc->address[i++] = XENCOMM_INVALID;
- desc->magic = XENCOMM_MAGIC;
- return 0;
-}
-
-static void *
-xencomm_alloc_mini(struct xencomm_mini *area, int *nbr_area)
-{
- unsigned long base;
- unsigned int pageoffset;
-
- while (*nbr_area >= 0) {
- /* Allocate an area. */
- (*nbr_area)--;
-
- base = (unsigned long)(area + *nbr_area);
- pageoffset = base % PAGE_SIZE;
-
- /* If the area does not cross a page, use it. */
- if ((PAGE_SIZE - pageoffset) >= sizeof(struct xencomm_mini))
- return &area[*nbr_area];
- }
- /* No more area. */
- return NULL;
-}
-
-int
-xencomm_create_mini(struct xencomm_mini *area, int *nbr_area,
- void *buffer, unsigned long bytes,
- struct xencomm_handle **ret)
-{
- struct xencomm_desc *desc;
- int rc;
- unsigned long res;
-
- desc = xencomm_alloc_mini(area, nbr_area);
- if (!desc)
- return -ENOMEM;
- desc->nr_addrs = XENCOMM_MINI_ADDRS;
-
- rc = xencomm_init_desc(desc, buffer, bytes);
- if (rc)
- return rc;
-
- res = xencomm_vaddr_to_paddr((unsigned long)desc);
- if (res == ~0UL)
- return -EINVAL;
-
- *ret = (struct xencomm_handle*)res;
- return 0;
-}
-
-static int
-xencommize_mini_grant_table_op(struct xencomm_mini *xc_area, int *nbr_area,
- unsigned int cmd, void *op, unsigned int count,
- struct xencomm_handle **desc)
-{
- struct xencomm_handle *desc1;
- unsigned int argsize=0;
- int rc;
-
- switch (cmd) {
- case GNTTABOP_map_grant_ref:
- argsize = sizeof(struct gnttab_map_grant_ref);
- break;
- case GNTTABOP_unmap_grant_ref:
- argsize = sizeof(struct gnttab_unmap_grant_ref);
- break;
- case GNTTABOP_setup_table:
- {
- struct gnttab_setup_table *setup = op;
-
- argsize = sizeof(*setup);
-
- if (count != 1)
- return -EINVAL;
- rc = xencomm_create_mini
- (xc_area, nbr_area,
- (void*)(uint64_t) xen_guest_handle(setup->frame_list),
- setup->nr_frames
- * sizeof(*xen_guest_handle(setup->frame_list)),
- &desc1);
- if (rc)
- return rc;
- set_xen_guest_handle(setup->frame_list,
- (void *)(uint64_t)desc1);
- break;
- }
- case GNTTABOP_dump_table:
- argsize = sizeof(struct gnttab_dump_table);
- break;
- case GNTTABOP_transfer:
- argsize = sizeof(struct gnttab_transfer);
- break;
- case GNTTABOP_copy:
- argsize = sizeof(struct gnttab_copy);
- break;
- default:
- printk("%s: unknown mini grant table op %d\n", __func__, cmd);
- BUG();
- }
-
- rc = xencomm_create_mini(xc_area, nbr_area, op, count * argsize, desc);
-
- return rc;
-}
-
-static inline int
-xencomm_arch_hypercall_grant_table_op(unsigned int cmd,
- struct xencomm_handle *uop,
- unsigned int count)
-{
- return _hypercall3(int, grant_table_op, cmd, uop, count);
-}
-
-int
-xencomm_mini_hypercall_grant_table_op(unsigned int cmd, void *op,
- unsigned int count)
-{
- int rc;
- struct xencomm_handle *desc;
- int nbr_area = 2;
- struct xencomm_mini xc_area[2];
-
- rc = xencommize_mini_grant_table_op(xc_area, &nbr_area,
- cmd, op, count, &desc);
- if (rc)
- return rc;
- return xencomm_arch_hypercall_grant_table_op(cmd, desc, count);
-}
-
-static void
-gnttab_map_grant_ref_pre(struct gnttab_map_grant_ref *uop)
-{
- uint32_t flags;
-
- flags = uop->flags;
-
- if (flags & GNTMAP_host_map) {
- if (flags & GNTMAP_application_map) {
- printk("GNTMAP_application_map is not supported yet: "
- "flags 0x%x\n", flags);
- BUG();
- }
- if (flags & GNTMAP_contains_pte) {
- printk("GNTMAP_contains_pte is not supported yet flags "
- "0x%x\n", flags);
- BUG();
- }
- } else if (flags & GNTMAP_device_map) {
- printk("GNTMAP_device_map is not supported yet 0x%x\n", flags);
- BUG();//XXX not yet. actually this flag is not used.
- } else {
- BUG();
- }
-}
-
-int
-HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count)
-{
- if (cmd == GNTTABOP_map_grant_ref) {
- unsigned int i;
- for (i = 0; i < count; i++) {
- gnttab_map_grant_ref_pre(
- (struct gnttab_map_grant_ref*)uop + i);
- }
- }
- return xencomm_mini_hypercall_grant_table_op(cmd, uop, count);
-}
-
- /* In fw.S */
-extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg);
-int
-HYPERVISOR_suspend(unsigned long srec)
-{
- struct sched_shutdown arg;
-
- arg.reason = (uint32_t)SHUTDOWN_suspend;
-
- return xencomm_arch_hypercall_suspend(xencomm_create_inline(&arg));
-}
-
-int
-HYPERVISOR_event_channel_op(int cmd, void *arg)
-{
- int rc;
- struct xencomm_handle *newArg;
-
- newArg = xencomm_create_inline(arg);
- rc = _hypercall2(int, event_channel_op, cmd, newArg);
- if (unlikely(rc == -ENOSYS)) {
- struct evtchn_op op;
-
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, event_channel_op_compat, &op);
- }
- return rc;
-}
-
-static int
-xencomm_arch_xen_version(int cmd, struct xencomm_handle *arg)
-{
- return _hypercall2(int, xen_version, cmd, arg);
-}
-
-static int
-xencomm_arch_xen_feature(int cmd, struct xencomm_handle *arg)
-{
- struct xencomm_handle *newArg;
-
- newArg = xencomm_create_inline(arg);
- return _hypercall2(int, xen_version, cmd, newArg);
-}
-
-int
-HYPERVISOR_xen_version(int cmd, void *arg)
-{
- switch(cmd) {
- case XENVER_version:
- return xencomm_arch_xen_version(cmd, 0);
- case XENVER_get_features:
- return xencomm_arch_xen_feature(cmd, arg);
- default:
- return -1;
- }
-}
-
-int
-HYPERVISOR_console_io(int cmd, int count, char *str)
-{
- struct xencomm_handle *newStr;
-
- newStr = xencomm_create_inline(str);
- return _hypercall3(int, console_io, cmd, count, newStr);
-}
-
-int
-HYPERVISOR_sched_op_compat(int cmd, unsigned long arg)
-{
- return _hypercall2(int, sched_op_compat, cmd, arg);
-}
-
-int
-HYPERVISOR_sched_op(int cmd, void *arg)
-{
- struct xencomm_handle *newArg;
-
- newArg = xencomm_create_inline(arg);
- return _hypercall2(int, sched_op, cmd, newArg);
-}
-
-int
-HYPERVISOR_callback_op(int cmd, void *arg)
-{
- struct xencomm_handle *newArg;
-
- newArg = xencomm_create_inline(arg);
- return _hypercall2(int, callback_op, cmd, newArg);
-}
-
-int
-HYPERVISOR_opt_feature(void *arg)
-{
- struct xencomm_handle *new_arg;
-
- new_arg = xencomm_create_inline(arg);
-
- return _hypercall1(int, opt_feature, new_arg);
-}
-
-int
-HYPERVISOR_shutdown(unsigned int reason)
-{
- struct sched_shutdown sched_shutdown = {
- .reason = reason
- };
-
- int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
-
- if (rc == -ENOSYS)
- rc = HYPERVISOR_sched_op_compat(SCHEDOP_shutdown, reason);
-
- return rc;
-}
-
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