#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
-#include <linux/slab.h>
#include <linux/user.h>
#include <linux/delay.h>
#include <asm/mtrr.h>
#include <asm/apic.h>
+#include <asm/trampoline.h>
#include <asm/e820.h>
#include <asm/mpspec.h>
#include <asm/setup.h>
#ifdef CONFIG_X86_64
#include <asm/numa_64.h>
#endif
+#include <asm/mce.h>
/*
* end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
unsigned long max_low_pfn_mapped;
unsigned long max_pfn_mapped;
+#ifdef CONFIG_DMI
RESERVE_BRK(dmi_alloc, 65536);
+#endif
unsigned int boot_cpu_id __read_mostly;
* from boot_params into a safe place.
*
*/
-static inline void copy_edd(void)
+static inline void __init copy_edd(void)
{
memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
sizeof(edd.mbr_signature));
edd.edd_info_nr = boot_params.eddbuf_entries;
}
#else
-static inline void copy_edd(void)
+static inline void __init copy_edd(void)
{
}
#endif
#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
static void __init relocate_initrd(void)
{
-
+ /* Assume only end is not page aligned */
u64 ramdisk_image = boot_params.hdr.ramdisk_image;
u64 ramdisk_size = boot_params.hdr.ramdisk_size;
+ u64 area_size = PAGE_ALIGN(ramdisk_size);
u64 end_of_lowmem = max_low_pfn_mapped << PAGE_SHIFT;
u64 ramdisk_here;
unsigned long slop, clen, mapaddr;
char *p, *q;
/* We need to move the initrd down into lowmem */
- ramdisk_here = find_e820_area(0, end_of_lowmem, ramdisk_size,
+ ramdisk_here = find_e820_area(0, end_of_lowmem, area_size,
PAGE_SIZE);
if (ramdisk_here == -1ULL)
/* Note: this includes all the lowmem currently occupied by
the initrd, we rely on that fact to keep the data intact. */
- reserve_early(ramdisk_here, ramdisk_here + ramdisk_size,
+ reserve_early(ramdisk_here, ramdisk_here + area_size,
"NEW RAMDISK");
initrd_start = ramdisk_here + PAGE_OFFSET;
initrd_end = initrd_start + ramdisk_size;
static void __init reserve_initrd(void)
{
+ /* Assume only end is not page aligned */
u64 ramdisk_image = boot_params.hdr.ramdisk_image;
u64 ramdisk_size = boot_params.hdr.ramdisk_size;
- u64 ramdisk_end = ramdisk_image + ramdisk_size;
+ u64 ramdisk_end = PAGE_ALIGN(ramdisk_image + ramdisk_size);
u64 end_of_lowmem = max_low_pfn_mapped << PAGE_SHIFT;
if (!boot_params.hdr.type_of_loader ||
#ifdef CONFIG_KEXEC
-/**
- * Reserve @size bytes of crashkernel memory at any suitable offset.
- *
- * @size: Size of the crashkernel memory to reserve.
- * Returns the base address on success, and -1ULL on failure.
- */
-static
-unsigned long long __init find_and_reserve_crashkernel(unsigned long long size)
-{
- const unsigned long long alignment = 16<<20; /* 16M */
- unsigned long long start = 0LL;
-
- while (1) {
- int ret;
-
- start = find_e820_area(start, ULONG_MAX, size, alignment);
- if (start == -1ULL)
- return start;
-
- /* try to reserve it */
- ret = reserve_bootmem_generic(start, size, BOOTMEM_EXCLUSIVE);
- if (ret >= 0)
- return start;
-
- start += alignment;
- }
-}
-
static inline unsigned long long get_total_mem(void)
{
unsigned long long total;
- total = max_low_pfn - min_low_pfn;
-#ifdef CONFIG_HIGHMEM
- total += highend_pfn - highstart_pfn;
-#endif
+ total = max_pfn - min_low_pfn;
return total << PAGE_SHIFT;
}
/* 0 means: find the address automatically */
if (crash_base <= 0) {
- crash_base = find_and_reserve_crashkernel(crash_size);
+ const unsigned long long alignment = 16<<20; /* 16M */
+
+ crash_base = find_e820_area(alignment, ULONG_MAX, crash_size,
+ alignment);
if (crash_base == -1ULL) {
- pr_info("crashkernel reservation failed. "
- "No suitable area found.\n");
+ pr_info("crashkernel reservation failed - No suitable area found.\n");
return;
}
} else {
- ret = reserve_bootmem_generic(crash_base, crash_size,
- BOOTMEM_EXCLUSIVE);
- if (ret < 0) {
- pr_info("crashkernel reservation failed - "
- "memory is in use\n");
+ unsigned long long start;
+
+ start = find_e820_area(crash_base, ULONG_MAX, crash_size,
+ 1<<20);
+ if (start != crash_base) {
+ pr_info("crashkernel reservation failed - memory is in use.\n");
return;
}
}
+ reserve_early(crash_base, crash_base + crash_size, "CRASH KERNEL");
printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
"for crashkernel (System RAM: %ldMB)\n",
early_param("elfcorehdr", setup_elfcorehdr);
#endif
+static __init void reserve_ibft_region(void)
+{
+ unsigned long addr, size = 0;
+
+ addr = find_ibft_region(&size);
+
+ if (size)
+ reserve_early_overlap_ok(addr, addr + size, "ibft");
+}
+
#ifdef CONFIG_X86_RESERVE_LOW_64K
static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
{
},
},
{
+ .callback = dmi_low_memory_corruption,
+ .ident = "Phoenix/MSC BIOS",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix/MSC"),
+ },
+ },
/*
- * AMI BIOS with low memory corruption was found on Intel DG45ID board.
- * It hase different DMI_BIOS_VENDOR = "Intel Corp.", for now we will
+ * AMI BIOS with low memory corruption was found on Intel DG45ID and
+ * DG45FC boards.
+ * It has a different DMI_BIOS_VENDOR = "Intel Corp.", for now we will
* match only DMI_BOARD_NAME and see if there is more bad products
* with this vendor.
*/
+ {
.callback = dmi_low_memory_corruption,
.ident = "AMI BIOS",
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "DG45ID"),
},
},
+ {
+ .callback = dmi_low_memory_corruption,
+ .ident = "AMI BIOS",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "DG45FC"),
+ },
+ },
#endif
{}
};
+static void __init trim_bios_range(void)
+{
+ /*
+ * A special case is the first 4Kb of memory;
+ * This is a BIOS owned area, not kernel ram, but generally
+ * not listed as such in the E820 table.
+ */
+ e820_update_range(0, PAGE_SIZE, E820_RAM, E820_RESERVED);
+ /*
+ * special case: Some BIOSen report the PC BIOS
+ * area (640->1Mb) as ram even though it is not.
+ * take them out.
+ */
+ e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
+ sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+}
+
/*
* Determine if we were loaded by an EFI loader. If so, then we have also been
* passed the efi memmap, systab, etc., so we should use these data structures
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);
-
+ trim_bios_range();
#ifdef CONFIG_X86_32
if (ppro_with_ram_bug()) {
e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
reserve_brk();
+ /*
+ * Find and reserve possible boot-time SMP configuration:
+ */
+ find_smp_config();
+
+ reserve_ibft_region();
+
+ reserve_trampoline_memory();
+
#ifdef CONFIG_ACPI_SLEEP
/*
* Reserve low memory region for sleep support.
reserve_initrd();
+ reserve_crashkernel();
+
vsmp_init();
io_delay_init();
#endif
initmem_init(0, max_pfn, acpi, k8);
-
- /*
- * Find and reserve possible boot-time SMP configuration:
- */
- find_smp_config();
-
- reserve_crashkernel();
-
-#ifdef CONFIG_X86_64
- /*
- * dma32_reserve_bootmem() allocates bootmem which may conflict
- * with the crashkernel command line, so do that after
- * reserve_crashkernel()
- */
- dma32_reserve_bootmem();
+#ifndef CONFIG_NO_BOOTMEM
+ early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);
#endif
- reserve_ibft_region();
+ dma32_reserve_bootmem();
#ifdef CONFIG_KVM_CLOCK
kvmclock_init();
#endif
#endif
x86_init.oem.banner();
+
+ mcheck_init();
}
#ifdef CONFIG_X86_32
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff