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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [IA64] Update efi.c and efi.h to linux-2.6.21
# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1180039394 21600
# Node ID 301267d0db1293a403da1d1afc11568f7e0abb87
# Parent 90f19b7667f755f3fda2132c490854baca70f33c
[IA64] Update efi.c and efi.h to linux-2.6.21
Signed-off-by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
---
xen/arch/ia64/linux-xen/README.origin | 4
xen/arch/ia64/linux-xen/efi.c | 520 +++++++++++++++++----
xen/include/asm-ia64/linux-xen/linux/README.origin | 4
xen/include/asm-ia64/linux-xen/linux/efi.h | 36 +
4 files changed, 456 insertions(+), 108 deletions(-)
diff -r 90f19b7667f7 -r 301267d0db12 xen/arch/ia64/linux-xen/README.origin
--- a/xen/arch/ia64/linux-xen/README.origin Thu May 24 14:20:19 2007 -0600
+++ b/xen/arch/ia64/linux-xen/README.origin Thu May 24 14:43:14 2007 -0600
@@ -6,7 +6,6 @@
# easily updated to future versions of the corresponding Linux files.
cmdline.c -> linux/lib/cmdline.c
-efi.c -> linux/arch/ia64/kernel/efi.c
entry.h -> linux/arch/ia64/kernel/entry.h
entry.S -> linux/arch/ia64/kernel/entry.S
head.S -> linux/arch/ia64/kernel/head.S
@@ -42,3 +41,6 @@ perfmon_itanium.h -> linux/arch/kernel/p
perfmon_itanium.h -> linux/arch/kernel/perfmon_itanium.h
perfmon_mckinley.h -> linux/arch/kernel/perfmon_mckinley.h
perfmon_montecito.h -> linux/arch/kernel/perfmon_montecito.h
+
+# The files below are from Linux-2.6.21
+efi.c -> linux/arch/ia64/kernel/efi.c
diff -r 90f19b7667f7 -r 301267d0db12 xen/arch/ia64/linux-xen/efi.c
--- a/xen/arch/ia64/linux-xen/efi.c Thu May 24 14:20:19 2007 -0600
+++ b/xen/arch/ia64/linux-xen/efi.c Thu May 24 14:43:14 2007 -0600
@@ -8,6 +8,8 @@
* Copyright (C) 1999-2003 Hewlett-Packard Co.
* David Mosberger-Tang <davidm@xxxxxxxxxx>
* Stephane Eranian <eranian@xxxxxxxxxx>
+ * (c) Copyright 2006 Hewlett-Packard Development Company, L.P.
+ * Bjorn Helgaas <bjorn.helgaas@xxxxxx>
*
* All EFI Runtime Services are not implemented yet as EFI only
* supports physical mode addressing on SoftSDV. This is to be fixed
@@ -18,12 +20,14 @@
* Goutham Rao: <goutham.rao@xxxxxxxxx>
* Skip non-WB memory and ignore empty memory ranges.
*/
-#include <linux/config.h>
#include <linux/module.h>
+#include <linux/bootmem.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/time.h>
+#include <linux/efi.h>
+#include <linux/kexec.h>
#include <asm/io.h>
#include <asm/kregs.h>
@@ -32,21 +36,24 @@
#include <asm/processor.h>
#include <asm/mca.h>
-#include <linux/efi.h>
-
#define EFI_DEBUG 0
extern efi_status_t efi_call_phys (void *, ...);
+#ifdef XEN
+/* this should be defined in linux/kernel.h */
extern unsigned long long memparse (char *ptr, char **retptr);
+/* this should be defined in linux/efi.h */
+//#define EFI_INVALID_TABLE_ADDR (void *)(~0UL)
+#endif
struct efi efi;
EXPORT_SYMBOL(efi);
static efi_runtime_services_t *runtime;
#if defined(XEN) && !defined(CONFIG_VIRTUAL_FRAME_TABLE)
// this is a temporary hack to avoid CONFIG_VIRTUAL_MEM_MAP
-static unsigned long mem_limit = ~0UL, max_addr = 0x100000000;
+static unsigned long mem_limit = ~0UL, max_addr = 0x100000000UL, min_addr =
0UL;
#else
-static unsigned long mem_limit = ~0UL, max_addr = ~0UL;
+static unsigned long mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL;
#endif
#define efi_call_virt(f, args...) (*(f))(args)
@@ -232,7 +239,7 @@ efi_gettimeofday (struct timespec *ts)
#endif
static int
-is_available_memory (efi_memory_desc_t *md)
+is_memory_available (efi_memory_desc_t *md)
{
if (!(md->attribute & EFI_MEMORY_WB))
return 0;
@@ -255,6 +262,32 @@ typedef struct kern_memdesc {
} kern_memdesc_t;
static kern_memdesc_t *kern_memmap;
+
+#define efi_md_size(md) (md->num_pages << EFI_PAGE_SHIFT)
+
+static inline u64
+kmd_end(kern_memdesc_t *kmd)
+{
+ return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
+}
+
+static inline u64
+efi_md_end(efi_memory_desc_t *md)
+{
+ return (md->phys_addr + efi_md_size(md));
+}
+
+static inline int
+efi_wb(efi_memory_desc_t *md)
+{
+ return (md->attribute & EFI_MEMORY_WB);
+}
+
+static inline int
+efi_uc(efi_memory_desc_t *md)
+{
+ return (md->attribute & EFI_MEMORY_UC);
+}
static void
walk (efi_freemem_callback_t callback, void *arg, u64 attr)
@@ -361,11 +394,10 @@ efi_get_pal_addr (void)
#endif
return __va(md->phys_addr);
}
- printk(KERN_WARNING "%s: no PAL-code memory-descriptor found",
+ printk(KERN_WARNING "%s: no PAL-code memory-descriptor found\n",
__FUNCTION__);
return NULL;
}
-
#ifdef XEN
void *pal_vaddr = 0;
@@ -405,24 +437,22 @@ efi_init (void)
efi_config_table_t *config_tables;
efi_char16_t *c16;
u64 efi_desc_size;
- char *cp, *end, vendor[100] = "unknown";
+ char *cp, vendor[100] = "unknown";
+ int i;
+
+ /* it's too early to be able to use the standard kernel command line
support... */
+#ifdef XEN
extern char saved_command_line[];
- int i;
-
- /* it's too early to be able to use the standard kernel command line
support... */
for (cp = saved_command_line; *cp; ) {
+#else
+ for (cp = boot_command_line; *cp; ) {
+#endif
if (memcmp(cp, "mem=", 4) == 0) {
- cp += 4;
- mem_limit = memparse(cp, &end);
- if (end != cp)
- break;
- cp = end;
+ mem_limit = memparse(cp + 4, &cp);
} else if (memcmp(cp, "max_addr=", 9) == 0) {
- cp += 9;
- max_addr = GRANULEROUNDDOWN(memparse(cp, &end));
- if (end != cp)
- break;
- cp = end;
+ max_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
+ } else if (memcmp(cp, "min_addr=", 9) == 0) {
+ min_addr = GRANULEROUNDDOWN(memparse(cp + 9, &cp));
} else {
while (*cp != ' ' && *cp)
++cp;
@@ -430,6 +460,8 @@ efi_init (void)
++cp;
}
}
+ if (min_addr != 0UL)
+ printk(KERN_INFO "Ignoring memory below %luMB\n", min_addr >>
20);
if (max_addr != ~0UL)
printk(KERN_INFO "Ignoring memory above %luMB\n", max_addr >>
20);
@@ -453,7 +485,7 @@ efi_init (void)
/* Show what we know for posterity */
c16 = __va(efi.systab->fw_vendor);
if (c16) {
- for (i = 0;i < (int) sizeof(vendor) && *c16; ++i)
+ for (i = 0;i < (int) sizeof(vendor) - 1 && *c16; ++i)
vendor[i] = *c16++;
vendor[i] = '\0';
}
@@ -461,6 +493,40 @@ efi_init (void)
printk(KERN_INFO "EFI v%u.%.02u by %s:",
efi.systab->hdr.revision >> 16, efi.systab->hdr.revision &
0xffff, vendor);
+#ifndef XEN
+ efi.mps = EFI_INVALID_TABLE_ADDR;
+ efi.acpi = EFI_INVALID_TABLE_ADDR;
+ efi.acpi20 = EFI_INVALID_TABLE_ADDR;
+ efi.smbios = EFI_INVALID_TABLE_ADDR;
+ efi.sal_systab = EFI_INVALID_TABLE_ADDR;
+ efi.boot_info = EFI_INVALID_TABLE_ADDR;
+ efi.hcdp = EFI_INVALID_TABLE_ADDR;
+ efi.uga = EFI_INVALID_TABLE_ADDR;
+
+ for (i = 0; i < (int) efi.systab->nr_tables; i++) {
+ if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
+ efi.mps = config_tables[i].table;
+ printk(" MPS=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid,
ACPI_20_TABLE_GUID) == 0) {
+ efi.acpi20 = config_tables[i].table;
+ printk(" ACPI 2.0=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid, ACPI_TABLE_GUID)
== 0) {
+ efi.acpi = config_tables[i].table;
+ printk(" ACPI=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid,
SMBIOS_TABLE_GUID) == 0) {
+ efi.smbios = config_tables[i].table;
+ printk(" SMBIOS=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid,
SAL_SYSTEM_TABLE_GUID) == 0) {
+ efi.sal_systab = config_tables[i].table;
+ printk(" SALsystab=0x%lx", config_tables[i].table);
+ } else if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID)
== 0) {
+ efi.hcdp = config_tables[i].table;
+ printk(" HCDP=0x%lx", config_tables[i].table);
+ }
+ }
+#else
+ /* Members of efi are set with virtual address in old linux code.
+ The latest linux set wiht physicall address. */
for (i = 0; i < (int) efi.systab->nr_tables; i++) {
if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
efi.mps = __va(config_tables[i].table);
@@ -482,6 +548,7 @@ efi_init (void)
printk(" HCDP=0x%lx", config_tables[i].table);
}
}
+#endif
printk("\n");
runtime = __va(efi.systab->runtime);
@@ -616,8 +683,20 @@ efi_get_iobase (void)
return 0;
}
-u32
-efi_mem_type (unsigned long phys_addr)
+static struct kern_memdesc *
+kern_memory_descriptor (unsigned long phys_addr)
+{
+ struct kern_memdesc *md;
+
+ for (md = kern_memmap; md->start != ~0UL; md++) {
+ if (phys_addr - md->start < (md->num_pages << EFI_PAGE_SHIFT))
+ return md;
+ }
+ return NULL;
+}
+
+static efi_memory_desc_t *
+efi_memory_descriptor (unsigned long phys_addr)
{
void *efi_map_start, *efi_map_end, *p;
efi_memory_desc_t *md;
@@ -631,57 +710,154 @@ efi_mem_type (unsigned long phys_addr)
md = p;
if (phys_addr - md->phys_addr < (md->num_pages <<
EFI_PAGE_SHIFT))
- return md->type;
- }
+ return md;
+ }
+ return NULL;
+}
+
+u32
+efi_mem_type (unsigned long phys_addr)
+{
+ efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+
+ if (md)
+ return md->type;
return 0;
}
u64
efi_mem_attributes (unsigned long phys_addr)
{
- void *efi_map_start, *efi_map_end, *p;
- efi_memory_desc_t *md;
- u64 efi_desc_size;
-
- efi_map_start = __va(ia64_boot_param->efi_memmap);
- efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
- efi_desc_size = ia64_boot_param->efi_memdesc_size;
-
- for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
- md = p;
-
- if (phys_addr - md->phys_addr < (md->num_pages <<
EFI_PAGE_SHIFT))
- return md->attribute;
- }
+ efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+
+ if (md)
+ return md->attribute;
return 0;
}
EXPORT_SYMBOL(efi_mem_attributes);
+u64
+efi_mem_attribute (unsigned long phys_addr, unsigned long size)
+{
+ unsigned long end = phys_addr + size;
+ efi_memory_desc_t *md = efi_memory_descriptor(phys_addr);
+ u64 attr;
+
+ if (!md)
+ return 0;
+
+ /*
+ * EFI_MEMORY_RUNTIME is not a memory attribute; it just tells
+ * the kernel that firmware needs this region mapped.
+ */
+ attr = md->attribute & ~EFI_MEMORY_RUNTIME;
+ do {
+ unsigned long md_end = efi_md_end(md);
+
+ if (end <= md_end)
+ return attr;
+
+ md = efi_memory_descriptor(md_end);
+ if (!md || (md->attribute & ~EFI_MEMORY_RUNTIME) != attr)
+ return 0;
+ } while (md);
+ return 0;
+}
+
+u64
+kern_mem_attribute (unsigned long phys_addr, unsigned long size)
+{
+ unsigned long end = phys_addr + size;
+ struct kern_memdesc *md;
+ u64 attr;
+
+ /*
+ * This is a hack for ioremap calls before we set up kern_memmap.
+ * Maybe we should do efi_memmap_init() earlier instead.
+ */
+ if (!kern_memmap) {
+ attr = efi_mem_attribute(phys_addr, size);
+ if (attr & EFI_MEMORY_WB)
+ return EFI_MEMORY_WB;
+ return 0;
+ }
+
+ md = kern_memory_descriptor(phys_addr);
+ if (!md)
+ return 0;
+
+ attr = md->attribute;
+ do {
+ unsigned long md_end = kmd_end(md);
+
+ if (end <= md_end)
+ return attr;
+
+ md = kern_memory_descriptor(md_end);
+ if (!md || md->attribute != attr)
+ return 0;
+ } while (md);
+ return 0;
+}
+EXPORT_SYMBOL(kern_mem_attribute);
+
+#ifndef XEN
int
-valid_phys_addr_range (unsigned long phys_addr, unsigned long *size)
-{
- void *efi_map_start, *efi_map_end, *p;
- efi_memory_desc_t *md;
- u64 efi_desc_size;
-
- efi_map_start = __va(ia64_boot_param->efi_memmap);
- efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
- efi_desc_size = ia64_boot_param->efi_memdesc_size;
-
- for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
- md = p;
-
- if (phys_addr - md->phys_addr < (md->num_pages <<
EFI_PAGE_SHIFT)) {
- if (!(md->attribute & EFI_MEMORY_WB))
- return 0;
-
- if (*size > md->phys_addr + (md->num_pages <<
EFI_PAGE_SHIFT) - phys_addr)
- *size = md->phys_addr + (md->num_pages <<
EFI_PAGE_SHIFT) - phys_addr;
- return 1;
- }
- }
+valid_phys_addr_range (unsigned long phys_addr, unsigned long size)
+{
+ u64 attr;
+
+ /*
+ * /dev/mem reads and writes use copy_to_user(), which implicitly
+ * uses a granule-sized kernel identity mapping. It's really
+ * only safe to do this for regions in kern_memmap. For more
+ * details, see Documentation/ia64/aliasing.txt.
+ */
+ attr = kern_mem_attribute(phys_addr, size);
+ if (attr & EFI_MEMORY_WB || attr & EFI_MEMORY_UC)
+ return 1;
return 0;
}
+
+int
+valid_mmap_phys_addr_range (unsigned long pfn, unsigned long size)
+{
+ /*
+ * MMIO regions are often missing from the EFI memory map.
+ * We must allow mmap of them for programs like X, so we
+ * currently can't do any useful validation.
+ */
+ return 1;
+}
+
+pgprot_t
+phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size,
+ pgprot_t vma_prot)
+{
+ unsigned long phys_addr = pfn << PAGE_SHIFT;
+ u64 attr;
+
+ /*
+ * For /dev/mem mmap, we use user mappings, but if the region is
+ * in kern_memmap (and hence may be covered by a kernel mapping),
+ * we must use the same attribute as the kernel mapping.
+ */
+ attr = kern_mem_attribute(phys_addr, size);
+ if (attr & EFI_MEMORY_WB)
+ return pgprot_cacheable(vma_prot);
+ else if (attr & EFI_MEMORY_UC)
+ return pgprot_noncached(vma_prot);
+
+ /*
+ * Some chipsets don't support UC access to memory. If
+ * WB is supported, we prefer that.
+ */
+ if (efi_mem_attribute(phys_addr, size) & EFI_MEMORY_WB)
+ return pgprot_cacheable(vma_prot);
+
+ return pgprot_noncached(vma_prot);
+}
+#endif
int __init
efi_uart_console_only(void)
@@ -728,32 +904,6 @@ efi_uart_console_only(void)
return 0;
}
-#define efi_md_size(md) (md->num_pages << EFI_PAGE_SHIFT)
-
-static inline u64
-kmd_end(kern_memdesc_t *kmd)
-{
- return (kmd->start + (kmd->num_pages << EFI_PAGE_SHIFT));
-}
-
-static inline u64
-efi_md_end(efi_memory_desc_t *md)
-{
- return (md->phys_addr + efi_md_size(md));
-}
-
-static inline int
-efi_wb(efi_memory_desc_t *md)
-{
- return (md->attribute & EFI_MEMORY_WB);
-}
-
-static inline int
-efi_uc(efi_memory_desc_t *md)
-{
- return (md->attribute & EFI_MEMORY_UC);
-}
-
/*
* Look for the first granule aligned memory descriptor memory
* that is big enough to hold EFI memory map. Make sure this
@@ -799,14 +949,15 @@ find_memmap_space (void)
}
contig_high = GRANULEROUNDDOWN(contig_high);
}
- if (!is_available_memory(md) || md->type == EFI_LOADER_DATA)
+ if (!is_memory_available(md) || md->type == EFI_LOADER_DATA)
continue;
/* Round ends inward to granule boundaries */
as = max(contig_low, md->phys_addr);
ae = min(contig_high, efi_md_end(md));
- /* keep within max_addr= command line arg */
+ /* keep within max_addr= and min_addr= command line arg */
+ as = max(as, min_addr);
ae = min(ae, max_addr);
if (ae <= as)
continue;
@@ -835,7 +986,7 @@ void
void
efi_memmap_init(unsigned long *s, unsigned long *e)
{
- struct kern_memdesc *k, *prev = 0;
+ struct kern_memdesc *k, *prev = NULL;
u64 contig_low=0, contig_high=0;
u64 as, ae, lim;
void *efi_map_start, *efi_map_end, *p, *q;
@@ -882,9 +1033,14 @@ efi_memmap_init(unsigned long *s, unsign
}
contig_high = GRANULEROUNDDOWN(contig_high);
}
- if (!is_available_memory(md))
- continue;
-
+ if (!is_memory_available(md))
+ continue;
+
+#ifdef CONFIG_CRASH_DUMP
+ /* saved_max_pfn should ignore max_addr= command line arg */
+ if (saved_max_pfn < (efi_md_end(md) >> PAGE_SHIFT))
+ saved_max_pfn = (efi_md_end(md) >> PAGE_SHIFT);
+#endif
/*
* Round ends inward to granule boundaries
* Give trimmings to uncached allocator
@@ -924,7 +1080,8 @@ efi_memmap_init(unsigned long *s, unsign
} else
ae = efi_md_end(md);
- /* keep within max_addr= command line arg */
+ /* keep within max_addr= and min_addr= command line arg */
+ as = max(as, min_addr);
ae = min(ae, max_addr);
if (ae <= as)
continue;
@@ -952,3 +1109,174 @@ efi_memmap_init(unsigned long *s, unsign
*s = (u64)kern_memmap;
*e = (u64)++k;
}
+
+#ifndef XEN
+void
+efi_initialize_iomem_resources(struct resource *code_resource,
+ struct resource *data_resource)
+{
+ struct resource *res;
+ void *efi_map_start, *efi_map_end, *p;
+ efi_memory_desc_t *md;
+ u64 efi_desc_size;
+ char *name;
+ unsigned long flags;
+
+ efi_map_start = __va(ia64_boot_param->efi_memmap);
+ efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
+ efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+ res = NULL;
+
+ for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+ md = p;
+
+ if (md->num_pages == 0) /* should not happen */
+ continue;
+
+ flags = IORESOURCE_MEM;
+ switch (md->type) {
+
+ case EFI_MEMORY_MAPPED_IO:
+ case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
+ continue;
+
+ case EFI_LOADER_CODE:
+ case EFI_LOADER_DATA:
+ case EFI_BOOT_SERVICES_DATA:
+ case EFI_BOOT_SERVICES_CODE:
+ case EFI_CONVENTIONAL_MEMORY:
+ if (md->attribute & EFI_MEMORY_WP) {
+ name = "System ROM";
+ flags |= IORESOURCE_READONLY;
+ } else {
+ name = "System RAM";
+ }
+ break;
+
+ case EFI_ACPI_MEMORY_NVS:
+ name = "ACPI Non-volatile Storage";
+ flags |= IORESOURCE_BUSY;
+ break;
+
+ case EFI_UNUSABLE_MEMORY:
+ name = "reserved";
+ flags |= IORESOURCE_BUSY | IORESOURCE_DISABLED;
+ break;
+
+ case EFI_RESERVED_TYPE:
+ case EFI_RUNTIME_SERVICES_CODE:
+ case EFI_RUNTIME_SERVICES_DATA:
+ case EFI_ACPI_RECLAIM_MEMORY:
+ default:
+ name = "reserved";
+ flags |= IORESOURCE_BUSY;
+ break;
+ }
+
+ if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) ==
NULL) {
+ printk(KERN_ERR "failed to alocate resource for
iomem\n");
+ return;
+ }
+
+ res->name = name;
+ res->start = md->phys_addr;
+ res->end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) -
1;
+ res->flags = flags;
+
+ if (insert_resource(&iomem_resource, res) < 0)
+ kfree(res);
+ else {
+ /*
+ * We don't know which region contains
+ * kernel data so we try it repeatedly and
+ * let the resource manager test it.
+ */
+ insert_resource(res, code_resource);
+ insert_resource(res, data_resource);
+#ifdef CONFIG_KEXEC
+ insert_resource(res, &efi_memmap_res);
+ insert_resource(res, &boot_param_res);
+ if (crashk_res.end > crashk_res.start)
+ insert_resource(res, &crashk_res);
+#endif
+ }
+ }
+}
+
+#ifdef CONFIG_KEXEC
+/* find a block of memory aligned to 64M exclude reserved regions
+ rsvd_regions are sorted
+ */
+unsigned long __init
+kdump_find_rsvd_region (unsigned long size,
+ struct rsvd_region *r, int n)
+{
+ int i;
+ u64 start, end;
+ u64 alignment = 1UL << _PAGE_SIZE_64M;
+ void *efi_map_start, *efi_map_end, *p;
+ efi_memory_desc_t *md;
+ u64 efi_desc_size;
+
+ efi_map_start = __va(ia64_boot_param->efi_memmap);
+ efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
+ efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+ for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+ md = p;
+ if (!efi_wb(md))
+ continue;
+ start = ALIGN(md->phys_addr, alignment);
+ end = efi_md_end(md);
+ for (i = 0; i < n; i++) {
+ if (__pa(r[i].start) >= start && __pa(r[i].end) < end) {
+ if (__pa(r[i].start) > start + size)
+ return start;
+ start = ALIGN(__pa(r[i].end), alignment);
+ if (i < n-1 && __pa(r[i+1].start) < start + size)
+ continue;
+ else
+ break;
+ }
+ }
+ if (end > start + size)
+ return start;
+ }
+
+ printk(KERN_WARNING "Cannot reserve 0x%lx byte of memory for crashdump\n",
+ size);
+ return ~0UL;
+}
+#endif
+
+#ifdef CONFIG_PROC_VMCORE
+/* locate the size find a the descriptor at a certain address */
+unsigned long
+vmcore_find_descriptor_size (unsigned long address)
+{
+ void *efi_map_start, *efi_map_end, *p;
+ efi_memory_desc_t *md;
+ u64 efi_desc_size;
+ unsigned long ret = 0;
+
+ efi_map_start = __va(ia64_boot_param->efi_memmap);
+ efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
+ efi_desc_size = ia64_boot_param->efi_memdesc_size;
+
+ for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
+ md = p;
+ if (efi_wb(md) && md->type == EFI_LOADER_DATA
+ && md->phys_addr == address) {
+ ret = efi_md_size(md);
+ break;
+ }
+ }
+
+ if (ret == 0)
+ printk(KERN_WARNING "Cannot locate EFI vmcore descriptor\n");
+
+ return ret;
+}
+#endif
+#endif /* XEN */
diff -r 90f19b7667f7 -r 301267d0db12
xen/include/asm-ia64/linux-xen/linux/README.origin
--- a/xen/include/asm-ia64/linux-xen/linux/README.origin Thu May 24
14:20:19 2007 -0600
+++ b/xen/include/asm-ia64/linux-xen/linux/README.origin Thu May 24
14:43:14 2007 -0600
@@ -5,7 +5,6 @@
# (e.g. with #ifdef XEN or XEN in a comment) so that they can be
# easily updated to future versions of the corresponding Linux files.
-efi.h -> linux/include/linux/efi.h
gfp.h -> linux/include/linux/gfp.h
hardirq.h -> linux/include/linux/hardirq.h
interrupt.h -> linux/include/linux/interrupt.h
@@ -17,3 +16,6 @@ pci.h -> linux/include/linux/pci.h
pci.h -> linux/include/linux/pci.h
kobject.h -> linux/include/linux/kobject.h
device.h -> linux/include/linux/device.h
+
+# The files below are from Linux-2.6.21
+efi.h -> linux/include/linux/efi.h
diff -r 90f19b7667f7 -r 301267d0db12 xen/include/asm-ia64/linux-xen/linux/efi.h
--- a/xen/include/asm-ia64/linux-xen/linux/efi.h Thu May 24 14:20:19
2007 -0600
+++ b/xen/include/asm-ia64/linux-xen/linux/efi.h Thu May 24 14:43:14
2007 -0600
@@ -91,11 +91,6 @@ typedef struct {
#define EFI_PAGE_SHIFT 12
-/*
- * For current x86 implementations of EFI, there is
- * additional padding in the mem descriptors. This is not
- * the case in ia64. Need to have this fixed in the f/w.
- */
typedef struct {
u32 type;
u32 pad;
@@ -103,9 +98,6 @@ typedef struct {
u64 virt_addr;
u64 num_pages;
u64 attribute;
-#if defined (__i386__)
- u64 pad1;
-#endif
} efi_memory_desc_t;
typedef int (*efi_freemem_callback_t) (unsigned long start, unsigned long end,
void *arg);
@@ -240,17 +232,36 @@ typedef struct {
} efi_system_table_t;
struct efi_memory_map {
+#ifndef XEN
+ void *phys_map;
+ void *map;
+#else
efi_memory_desc_t *phys_map;
efi_memory_desc_t *map;
+#endif
+ void *map_end;
int nr_map;
unsigned long desc_version;
+ unsigned long desc_size;
};
+
+#define EFI_INVALID_TABLE_ADDR (~0UL)
/*
* All runtime access to EFI goes through this structure:
*/
extern struct efi {
efi_system_table_t *systab; /* EFI system table */
+#ifndef XEN
+ unsigned long mps; /* MPS table */
+ unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
+ unsigned long acpi20; /* ACPI table (ACPI 2.0) */
+ unsigned long smbios; /* SM BIOS table */
+ unsigned long sal_systab; /* SAL system table */
+ unsigned long boot_info; /* boot info table */
+ unsigned long hcdp; /* HCDP table */
+ unsigned long uga; /* UGA table */
+#else
void *mps; /* MPS table */
void *acpi; /* ACPI table (IA64 ext 0.71) */
void *acpi20; /* ACPI table (ACPI 2.0) */
@@ -259,6 +270,7 @@ extern struct efi {
void *boot_info; /* boot info table */
void *hcdp; /* HCDP table */
void *uga; /* UGA table */
+#endif
efi_get_time_t *get_time;
efi_set_time_t *set_time;
efi_get_wakeup_time_t *get_wakeup_time;
@@ -302,11 +314,15 @@ extern u64 efi_get_iobase (void);
extern u64 efi_get_iobase (void);
extern u32 efi_mem_type (unsigned long phys_addr);
extern u64 efi_mem_attributes (unsigned long phys_addr);
+extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size);
+extern int efi_mem_attribute_range (unsigned long phys_addr, unsigned long
size,
+ u64 attr);
extern int __init efi_uart_console_only (void);
extern void efi_initialize_iomem_resources(struct resource *code_resource,
struct resource *data_resource);
-extern unsigned long __init efi_get_time(void);
-extern int __init efi_set_rtc_mmss(unsigned long nowtime);
+extern unsigned long efi_get_time(void);
+extern int efi_set_rtc_mmss(unsigned long nowtime);
+extern int is_available_memory(efi_memory_desc_t * md);
extern struct efi_memory_map memmap;
/**
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