vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Merge remote-tracking branch 'upstream/master'

Browse source
This commit is contained in:
David Michael 2017-01-23 13:27:34 -08:00
commit e576eb0cbc
183 changed files with 5507 additions and 2653 deletions
Download patch file Download diff file Expand all files Collapse all files

85
grub-core/kern/acpi.c
View file

@ -32,3 +32,88 @@ grub_byte_checksum (void *base, grub_size_t size)
ret += *ptr;
return ret;
}
static void *
grub_acpi_rsdt_find_table (struct grub_acpi_table_header *rsdt, const char *sig)
{
grub_size_t s;
grub_unaligned_uint32_t *ptr;
if (!rsdt)
return 0;
if (grub_memcmp (rsdt->signature, "RSDT", 4) != 0)
return 0;
ptr = (grub_unaligned_uint32_t *) (rsdt + 1);
s = (rsdt->length - sizeof (*rsdt)) / sizeof (grub_uint32_t);
for (; s; s--, ptr++)
{
struct grub_acpi_table_header *tbl;
tbl = (struct grub_acpi_table_header *) (grub_addr_t) ptr->val;
if (grub_memcmp (tbl->signature, sig, 4) == 0)
return tbl;
}
return 0;
}
static void *
grub_acpi_xsdt_find_table (struct grub_acpi_table_header *xsdt, const char *sig)
{
grub_size_t s;
grub_unaligned_uint64_t *ptr;
if (!xsdt)
return 0;
if (grub_memcmp (xsdt->signature, "XSDT", 4) != 0)
return 0;
ptr = (grub_unaligned_uint64_t *) (xsdt + 1);
s = (xsdt->length - sizeof (*xsdt)) / sizeof (grub_uint32_t);
for (; s; s--, ptr++)
{
struct grub_acpi_table_header *tbl;
#if GRUB_CPU_SIZEOF_VOID_P != 8
if (ptr->val >> 32)
continue;
#endif
tbl = (struct grub_acpi_table_header *) (grub_addr_t) ptr->val;
if (grub_memcmp (tbl->signature, sig, 4) == 0)
return tbl;
}
return 0;
}
struct grub_acpi_fadt *
grub_acpi_find_fadt (void)
{
struct grub_acpi_fadt *fadt = 0;
struct grub_acpi_rsdp_v10 *rsdpv1;
struct grub_acpi_rsdp_v20 *rsdpv2;
rsdpv1 = grub_machine_acpi_get_rsdpv1 ();
if (rsdpv1)
fadt = grub_acpi_rsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv1->rsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
rsdpv2 = grub_machine_acpi_get_rsdpv2 ();
if (rsdpv2)
fadt = grub_acpi_rsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv2->rsdpv1.rsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
if (rsdpv2
#if GRUB_CPU_SIZEOF_VOID_P != 8
&& !(rsdpv2->xsdt_addr >> 32)
#endif
)
fadt = grub_acpi_xsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv2->xsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
return 0;
}

4
grub-core/kern/arm/efi/init.c
View file

@ -38,7 +38,7 @@ static void
increment_timer (grub_efi_event_t event __attribute__ ((unused)),
void *context __attribute__ ((unused)))
{
tmr++;
tmr += 10;
}
void
@ -52,7 +52,7 @@ grub_machine_init (void)
efi_call_5 (b->create_event, GRUB_EFI_EVT_TIMER | GRUB_EFI_EVT_NOTIFY_SIGNAL,
GRUB_EFI_TPL_CALLBACK, increment_timer, NULL, &tmr_evt);
efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_PERIODIC, 10000);
efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_PERIODIC, 100000);
grub_install_get_time_ms (grub_efi_get_time_ms);
}

60
grub-core/kern/arm/uboot/startup.S
View file

@ -55,10 +55,6 @@ FUNCTION(_start)
VARIABLE(grub_total_module_size)
.long 0
VARIABLE(grub_uboot_machine_type)
.long 0
VARIABLE(grub_uboot_boot_data)
.long 0
VARIABLE(grub_modbase)
.long 0
bss_start_ptr:
@ -66,29 +62,66 @@ bss_start_ptr:
end_ptr:
.long EXT_C(_end)
@ Memory map at start:
@ * text+data
@ * list relocations
@ * modules
@ Before we enter C, we need to apply the relocations
@ and get following map:
@ * text+data
@ * BSS (cleared)
@ * stack
@ * modules
@
@ To make things easier we ensure
@ that BSS+stack is larger than list of relocations
@ by increasing stack if necessarry.
@ This allows us to always unconditionally copy backwards
@ Currently list of relocations is ~5K and stack is set
@ to be at least 256K
FUNCTION(codestart)
@ Store context: Machine ID, atags/dtb, ...
@ U-Boot API signature is stored on the U-Boot heap
@ Stack pointer used as start address for signature probing
mov r12, sp
adr sp, entry_state
push {r4-r12,lr} @ store U-Boot context (sp in r12)
push {r1-r12,lr} @ store U-Boot context (sp in r12)
str r1, EXT_C(grub_uboot_machine_type)
str r2, EXT_C(grub_uboot_boot_data)
@ Modules have been stored as a blob in BSS,
@ they need to be manually relocated to _end
adr r1, _start
ldr r0, bss_start_ptr @ src
add r0, r0, r1
add r0, r0, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
mvn r2, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
and r0, r0, r2
1:
ldr r3, [r0], #4 @load next offset
@ both -2 and -1 are treated the same as we have only one type of relocs
@ -2 means "end of this type of relocs" and -1 means "end of all relocs"
add r2, r3, #2
cmp r2, #1
bls reloc_done
@ Adjust next offset
ldr r2, [r3, r1]
add r2, r2, r1
str r2, [r3, r1]
b 1b
reloc_done:
@ Modules have been stored as a blob
@ they need to be manually relocated to _end
add r0, r0, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
mvn r1, #(GRUB_KERNEL_MACHINE_MOD_ALIGN - 1)
and r0, r0, r1
and r0, r0, r1 @ src = aligned end of relocations
ldr r1, end_ptr @ dst = End of BSS
ldr r2, grub_total_module_size @ blob size
add r1, r1, #GRUB_KERNEL_MACHINE_STACK_SIZE
and r1, r1, #~0x7 @ Ensure 8-byte alignment
sub sp, r1, #8
add r1, r1, #1024
@ -157,6 +190,11 @@ FUNCTION(grub_uboot_return)
.align 3
@ U-boot context stack space
entry_state_end:
VARIABLE(grub_uboot_machine_type)
.long 0 @ r1
VARIABLE(grub_uboot_boot_data)
.long 0 @ r2
.long 0 @ r3
.long 0 @ r4
.long 0 @ r5
.long 0 @ r6

18
grub-core/kern/arm64/dl.c
View file

@ -132,6 +132,12 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
*abs_place = (grub_uint64_t) sym_addr;
}
break;
case R_AARCH64_ADD_ABS_LO12_NC:
grub_arm64_set_abs_lo12 (place, sym_addr);
break;
case R_AARCH64_LDST64_ABS_LO12_NC:
grub_arm64_set_abs_lo12_ldst64 (place, sym_addr);
break;
case R_AARCH64_CALL26:
case R_AARCH64_JUMP26:
{
@ -154,6 +160,18 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr,
grub_arm64_set_xxxx26_offset (place, offset);
}
break;
case R_AARCH64_ADR_PREL_PG_HI21:
{
grub_int64_t offset = (sym_addr & ~0xfffULL) - (((grub_uint64_t) place) & ~0xfffULL);
if (!grub_arm64_check_hi21_signed (offset))
return grub_error (GRUB_ERR_BAD_MODULE,
"HI21 out of range");
grub_arm64_set_hi21 (place, offset);
}
break;
default:
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
N_("relocation 0x%x is not implemented yet"),

40
grub-core/kern/arm64/dl_helper.c
View file

@ -53,3 +53,43 @@ grub_arm64_set_xxxx26_offset (grub_uint32_t *place, grub_int64_t offset)
*place &= insmask;
*place |= grub_cpu_to_le32 (offset >> 2) & ~insmask;
}
int
grub_arm64_check_hi21_signed (grub_int64_t offset)
{
if (offset != (grub_int64_t)(grub_int32_t)offset)
return 0;
return 1;
}
void
grub_arm64_set_hi21 (grub_uint32_t *place, grub_int64_t offset)
{
const grub_uint32_t insmask = grub_cpu_to_le32_compile_time (0x9f00001f);
grub_uint32_t val;
offset >>= 12;
val = ((offset & 3) << 29) | (((offset >> 2) & 0x7ffff) << 5);
*place &= insmask;
*place |= grub_cpu_to_le32 (val) & ~insmask;
}
void
grub_arm64_set_abs_lo12 (grub_uint32_t *place, grub_int64_t target)
{
const grub_uint32_t insmask = grub_cpu_to_le32_compile_time (0xffc003ff);
*place &= insmask;
*place |= grub_cpu_to_le32 (target << 10) & ~insmask;
}
void
grub_arm64_set_abs_lo12_ldst64 (grub_uint32_t *place, grub_int64_t target)
{
const grub_uint32_t insmask = grub_cpu_to_le32_compile_time (0xfff803ff);
*place &= insmask;
*place |= grub_cpu_to_le32 (target << 7) & ~insmask;
}

60
grub-core/kern/arm64/efi/init.c Normal file
View file

@ -0,0 +1,60 @@
/* init.c - initialize an arm-based EFI system */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/env.h>
#include <grub/kernel.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/time.h>
#include <grub/efi/efi.h>
#include <grub/loader.h>
static grub_uint64_t timer_frequency_in_khz;
static grub_uint64_t
grub_efi_get_time_ms (void)
{
grub_uint64_t tmr;
asm volatile("mrs %0, cntvct_el0" : "=r" (tmr));
return tmr / timer_frequency_in_khz;
}
void
grub_machine_init (void)
{
grub_uint64_t timer_frequency;
grub_efi_init ();
asm volatile("mrs %0, cntfrq_el0" : "=r" (timer_frequency));
timer_frequency_in_khz = timer_frequency / 1000;
grub_install_get_time_ms (grub_efi_get_time_ms);
}
void
grub_machine_fini (int flags)
{
if (!(flags & GRUB_LOADER_FLAG_NORETURN))
return;
grub_efi_fini ();
}

10
grub-core/kern/dl.c
View file

@ -342,8 +342,11 @@ grub_dl_resolve_symbols (grub_dl_t mod, Elf_Ehdr *e)
if (s->sh_type == SHT_SYMTAB)
break;
/* Module without symbol table may still be used to pull in dependencies.
We verify at build time that such modules do not contain any relocations
that may reference symbol table. */
if (i == e->e_shnum)
return grub_error (GRUB_ERR_BAD_MODULE, N_("no symbol table"));
return GRUB_ERR_NONE;
#ifdef GRUB_MODULES_MACHINE_READONLY
mod->symtab = grub_malloc (s->sh_size);
@ -585,6 +588,9 @@ grub_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
if (seg)
{
if (!mod->symtab)
return grub_error (GRUB_ERR_BAD_MODULE, "relocation without symbol table");
err = grub_arch_dl_relocate_symbols (mod, ehdr, s, seg);
if (err)
return err;
@ -614,7 +620,7 @@ grub_dl_load_core_noinit (void *addr, grub_size_t size)
}
/* Make sure that every section is within the core. */
if (size < e->e_shoff + e->e_shentsize * e->e_shnum)
if (size < e->e_shoff + (grub_uint32_t) e->e_shentsize * e->e_shnum)
{
grub_error (GRUB_ERR_BAD_OS, "ELF sections outside core");
return 0;

43
grub-core/kern/efi/fdt.c Normal file
View file

@ -0,0 +1,43 @@
/* fdt.c - EFI Flattened Device Tree interaction */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2006,2007 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/efi/efi.h>
#include <grub/mm.h>
void *
grub_efi_get_firmware_fdt (void)
{
grub_efi_configuration_table_t *tables;
grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
void *firmware_fdt = NULL;
unsigned int i;
/* Look for FDT in UEFI config tables. */
tables = grub_efi_system_table->configuration_table;
for (i = 0; i < grub_efi_system_table->num_table_entries; i++)
if (grub_memcmp (&tables[i].vendor_guid, &fdt_guid, sizeof (fdt_guid)) == 0)
{
firmware_fdt = tables[i].vendor_table;
grub_dprintf ("linux", "found registered FDT @ %p\n", firmware_fdt);
break;
}
return firmware_fdt;
}

7
grub-core/kern/efi/init.c
View file

@ -59,10 +59,13 @@ grub_machine_get_bootlocation (char **device, char **path)
if (!image)
return;
*device = grub_efidisk_get_device_name (image->device_handle);
*path = grub_efi_get_filename (image->file_path);
if (!*device && grub_efi_net_config)
grub_efi_net_config (image->device_handle, device, path);
{
grub_efi_net_config (image->device_handle, device, path);
return;
}
*path = grub_efi_get_filename (image->file_path);
if (*path)
{
/* Get the directory. */

2
grub-core/kern/elfXX.c
View file

@ -12,7 +12,7 @@ grub_elfXX_load_phdrs (grub_elf_t elf)
if (elf->phdrs)
return GRUB_ERR_NONE;
phdrs_size = elf->ehdr.ehdrXX.e_phnum * elf->ehdr.ehdrXX.e_phentsize;
phdrs_size = (grub_uint32_t) elf->ehdr.ehdrXX.e_phnum * elf->ehdr.ehdrXX.e_phentsize;
grub_dprintf ("elf", "Loading program headers at 0x%llx, size 0x%lx.\n",
(unsigned long long) elf->ehdr.ehdrXX.e_phoff,

4
grub-core/kern/emu/hostdisk.c
View file

@ -161,9 +161,9 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk)
{
struct stat st;
# if GRUB_DISK_DEVS_ARE_CHAR
if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode))
if (fstat (fd, &st) >= 0 && S_ISCHR (st.st_mode))
# else
if (fstat (fd, &st) < 0 || ! S_ISBLK (st.st_mode))
if (fstat (fd, &st) >= 0 && S_ISBLK (st.st_mode))
# endif
data->is_disk = 1;
}

48
grub-core/kern/emu/main.c
View file

@ -65,6 +65,12 @@ grub_reboot (void)
longjmp (main_env, 1);
}
void
grub_exit (void)
{
grub_reboot ();
}
void
grub_machine_init (void)
{
@ -86,11 +92,16 @@ grub_machine_fini (int flags)
#define OPT_MEMDISK 257
static struct argp_option options[] = {
{"root", 'r', N_("DEVICE_NAME"), 0, N_("Set root device."), 2},
{"device-map", 'm', N_("FILE"), 0,
/* TRANSLATORS: There are many devices in device map. */
N_("use FILE as the device map [default=%s]"), 0},
{"memdisk", OPT_MEMDISK, N_("FILE"), 0,
/* TRANSLATORS: There are many devices in device map. */
N_("use FILE as memdisk"), 0},
{"directory", 'd', N_("DIR"), 0,
N_("use GRUB files in the directory DIR [default=%s]"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
@ -119,6 +130,7 @@ help_filter (int key, const char *text, void *input __attribute__ ((unused)))
struct arguments
{
const char *dev_map;
const char *mem_disk;
int hold;
};
@ -131,6 +143,9 @@ argp_parser (int key, char *arg, struct argp_state *state)
switch (key)
{
case OPT_MEMDISK:
arguments->mem_disk = arg;
break;
case 'r':
free (root_dev);
root_dev = xstrdup (arg);
@ -180,9 +195,13 @@ main (int argc, char *argv[])
struct arguments arguments =
{
.dev_map = DEFAULT_DEVICE_MAP,
.hold = 0
.hold = 0,
.mem_disk = 0,
};
volatile int hold = 0;
size_t total_module_size = sizeof (struct grub_module_info), memdisk_size = 0;
struct grub_module_info *modinfo;
void *mods;
grub_util_host_init (&argc, &argv);
@ -194,6 +213,33 @@ main (int argc, char *argv[])
exit(1);
}
if (arguments.mem_disk)
{
memdisk_size = ALIGN_UP(grub_util_get_image_size (arguments.mem_disk), 512);
total_module_size += memdisk_size + sizeof (struct grub_module_header);
}
mods = xmalloc (total_module_size);
modinfo = grub_memset (mods, 0, total_module_size);
mods = (char *) (modinfo + 1);
modinfo->magic = GRUB_MODULE_MAGIC;
modinfo->offset = sizeof (struct grub_module_info);
modinfo->size = total_module_size;
if (arguments.mem_disk)
{
struct grub_module_header *header = (struct grub_module_header *) mods;
header->type = OBJ_TYPE_MEMDISK;
header->size = memdisk_size + sizeof (*header);
mods = header + 1;
grub_util_load_image (arguments.mem_disk, mods);
mods = (char *) mods + memdisk_size;
}
grub_modbase = (grub_addr_t) modinfo;
hold = arguments.hold;
/* Wait until the ARGS.HOLD variable is cleared by an attached debugger. */
if (hold && verbosity > 0)

51
grub-core/kern/emu/misc.c
View file

@ -127,6 +127,7 @@ xasprintf (const char *fmt, ...)
va_start (ap, fmt);
result = grub_xvasprintf (fmt, ap);
va_end (ap);
if (!result)
grub_util_error ("%s", _("out of memory"));
@ -134,11 +135,13 @@ xasprintf (const char *fmt, ...)
}
#endif
#if !defined (GRUB_MACHINE_EMU) || defined (GRUB_UTIL)
void
grub_exit (void)
{
exit (1);
}
#endif
grub_uint64_t
grub_get_time_ms (void)
@ -149,3 +152,51 @@ grub_get_time_ms (void)
return (tv.tv_sec * 1000 + tv.tv_usec / 1000);
}
size_t
grub_util_get_image_size (const char *path)
{
FILE *f;
size_t ret;
off_t sz;
f = grub_util_fopen (path, "rb");
if (!f)
grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
fseeko (f, 0, SEEK_END);
sz = ftello (f);
if (sz < 0)
grub_util_error (_("cannot open `%s': %s"), path, strerror (errno));
if (sz != (size_t) sz)
grub_util_error (_("file `%s' is too big"), path);
ret = (size_t) sz;
fclose (f);
return ret;
}
void
grub_util_load_image (const char *path, char *buf)
{
FILE *fp;
size_t size;
grub_util_info ("reading %s", path);
size = grub_util_get_image_size (path);
fp = grub_util_fopen (path, "rb");
if (! fp)
grub_util_error (_("cannot open `%s': %s"), path,
strerror (errno));
if (fread (buf, 1, size, fp) != size)
grub_util_error (_("cannot read `%s': %s"), path,
strerror (errno));
fclose (fp);
}

11
grub-core/kern/i386/int.S
View file

@ -44,6 +44,13 @@ FUNCTION(grub_bios_interrupt)
movl 24(%edx), %esi
movl 28(%edx), %edx
/*
Via C3 CPUs have cache coherence problems, so we need to call
wbinvd at these 2 points. As wbinvd slows down boot, don't do
it on non-VIA. 9090 is nop nop. */
VARIABLE(grub_bios_via_workaround1)
.byte 0x90, 0x90
PROT_TO_REAL
.code16
pushf
@ -92,6 +99,10 @@ intno:
movw %ax, LOCAL(bios_register_es)
popf
VARIABLE(grub_bios_via_workaround2)
.byte 0x90, 0x90
REAL_TO_PROT
.code32

24
grub-core/kern/i386/pc/init.c
View file

@ -32,6 +32,7 @@
#include <grub/env.h>
#include <grub/cache.h>
#include <grub/time.h>
#include <grub/cpu/cpuid.h>
#include <grub/cpu/tsc.h>
#include <grub/machine/time.h>
@ -184,6 +185,26 @@ mmap_iterate_hook (grub_uint64_t addr, grub_uint64_t size,
return 0;
}
extern grub_uint16_t grub_bios_via_workaround1, grub_bios_via_workaround2;
/* Via needs additional wbinvd. */
static void
grub_via_workaround_init (void)
{
grub_uint32_t manufacturer[3], max_cpuid;
if (! grub_cpu_is_cpuid_supported ())
return;
grub_cpuid (0, max_cpuid, manufacturer[0], manufacturer[2], manufacturer[1]);
if (grub_memcmp (manufacturer, "CentaurHauls", 12) != 0)
return;
grub_bios_via_workaround1 = 0x090f;
grub_bios_via_workaround2 = 0x090f;
asm volatile ("wbinvd");
}
void
grub_machine_init (void)
{
@ -193,6 +214,9 @@ grub_machine_init (void)
#endif
grub_addr_t modend;
/* This has to happen before any BIOS calls. */
grub_via_workaround_init ();
grub_modbase = GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR + (_edata - _start);
/* Initialize the console as early as possible. */

16
grub-core/kern/i386/tsc.c
View file

@ -43,22 +43,6 @@ grub_tsc_get_time_ms (void)
return ((al * grub_tsc_rate) >> 32) + ah * grub_tsc_rate;
}
static __inline int
grub_cpu_is_tsc_supported (void)
{
#ifndef GRUB_MACHINE_XEN
grub_uint32_t a,b,c,d;
if (! grub_cpu_is_cpuid_supported ())
return 0;
grub_cpuid(1,a,b,c,d);
return (d & (1 << 4)) != 0;
#else
return 1;
#endif
}
static int
calibrate_tsc_hardcode (void)
{

132
grub-core/kern/i386/tsc_pmtimer.c
View file

@ -24,129 +24,35 @@
#include <grub/time.h>
#include <grub/misc.h>
#include <grub/i386/tsc.h>
#include <grub/i386/pmtimer.h>
#include <grub/acpi.h>
#include <grub/cpu/io.h>
static void *
grub_acpi_rsdt_find_table (struct grub_acpi_table_header *rsdt, const char *sig)
{
grub_size_t s;
grub_uint32_t *ptr;
if (!rsdt)
return 0;
if (grub_memcmp (rsdt->signature, "RSDT", 4) != 0)
return 0;
ptr = (grub_uint32_t *) (rsdt + 1);
s = (rsdt->length - sizeof (*rsdt)) / sizeof (grub_uint32_t);
for (; s; s--, ptr++)
{
struct grub_acpi_table_header *tbl;
tbl = (struct grub_acpi_table_header *) (grub_addr_t) *ptr;
if (grub_memcmp (tbl->signature, sig, 4) == 0)
return tbl;
}
return 0;
}
static void *
grub_acpi_xsdt_find_table (struct grub_acpi_table_header *xsdt, const char *sig)
{
grub_size_t s;
grub_uint64_t *ptr;
if (!xsdt)
return 0;
if (grub_memcmp (xsdt->signature, "XSDT", 4) != 0)
return 0;
ptr = (grub_uint64_t *) (xsdt + 1);
s = (xsdt->length - sizeof (*xsdt)) / sizeof (grub_uint32_t);
for (; s; s--, ptr++)
{
struct grub_acpi_table_header *tbl;
#if GRUB_CPU_SIZEOF_VOID_P != 8
if (*ptr >> 32)
continue;
#endif
tbl = (struct grub_acpi_table_header *) (grub_addr_t) *ptr;
if (grub_memcmp (tbl->signature, sig, 4) == 0)
return tbl;
}
return 0;
}
struct grub_acpi_fadt *
grub_acpi_find_fadt (void)
{
struct grub_acpi_fadt *fadt = 0;
struct grub_acpi_rsdp_v10 *rsdpv1;
struct grub_acpi_rsdp_v20 *rsdpv2;
rsdpv1 = grub_machine_acpi_get_rsdpv1 ();
if (rsdpv1)
fadt = grub_acpi_rsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv1->rsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
rsdpv2 = grub_machine_acpi_get_rsdpv2 ();
if (rsdpv2)
fadt = grub_acpi_rsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv2->rsdpv1.rsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
if (rsdpv2
#if GRUB_CPU_SIZEOF_VOID_P != 8
&& !(rsdpv2->xsdt_addr >> 32)
#endif
)
fadt = grub_acpi_xsdt_find_table ((struct grub_acpi_table_header *)
(grub_addr_t) rsdpv2->xsdt_addr,
GRUB_ACPI_FADT_SIGNATURE);
if (fadt)
return fadt;
return 0;
}
int
grub_tsc_calibrate_from_pmtimer (void)
grub_uint64_t
grub_pmtimer_wait_count_tsc (grub_port_t pmtimer,
grub_uint16_t num_pm_ticks)
{
grub_uint32_t start;
grub_uint32_t last;
grub_uint32_t cur, end;
struct grub_acpi_fadt *fadt;
grub_port_t p;
grub_uint64_t start_tsc;
grub_uint64_t end_tsc;
int num_iter = 0;
fadt = grub_acpi_find_fadt ();
if (!fadt)
return 0;
p = fadt->pmtimer;
if (!p)
return 0;
start = grub_inl (p) & 0xffffff;
start = grub_inl (pmtimer) & 0xffffff;
last = start;
/* It's 3.579545 MHz clock. Wait 1 ms. */
end = start + 3580;
end = start + num_pm_ticks;
start_tsc = grub_get_tsc ();
while (1)
{
cur = grub_inl (p) & 0xffffff;
cur = grub_inl (pmtimer) & 0xffffff;
if (cur < last)
cur |= 0x1000000;
num_iter++;
if (cur >= end)
{
end_tsc = grub_get_tsc ();
grub_tsc_rate = grub_divmod64 ((1ULL << 32), end_tsc - start_tsc, 0);
return 1;
return end_tsc - start_tsc;
}
/* Check for broken PM timer.
50000000 TSCs is between 5 ms (10GHz) and 200 ms (250 MHz)
@ -158,3 +64,25 @@ grub_tsc_calibrate_from_pmtimer (void)
}
}
}
int
grub_tsc_calibrate_from_pmtimer (void)
{
struct grub_acpi_fadt *fadt;
grub_port_t pmtimer;
grub_uint64_t tsc_diff;
fadt = grub_acpi_find_fadt ();
if (!fadt)
return 0;
pmtimer = fadt->pmtimer;
if (!pmtimer)
return 0;
/* It's 3.579545 MHz clock. Wait 1 ms. */
tsc_diff = grub_pmtimer_wait_count_tsc (pmtimer, 3580);
if (tsc_diff == 0)
return 0;
grub_tsc_rate = grub_divmod64 ((1ULL << 32), tsc_diff, 0);
return 1;
}

8
grub-core/kern/ieee1275/init.c
View file

@ -46,11 +46,19 @@
#define HEAP_MIN_SIZE (unsigned long) (2 * 1024 * 1024)
/* The maximum heap size we're going to claim */
#ifdef __i386__
#define HEAP_MAX_SIZE (unsigned long) (64 * 1024 * 1024)
#else
#define HEAP_MAX_SIZE (unsigned long) (32 * 1024 * 1024)
#endif
/* If possible, we will avoid claiming heap above this address, because it
seems to cause relocation problems with OSes that link at 4 MiB */
#ifdef __i386__
#define HEAP_MAX_ADDR (unsigned long) (64 * 1024 * 1024)
#else
#define HEAP_MAX_ADDR (unsigned long) (32 * 1024 * 1024)
#endif
extern char _start[];
extern char _end[];

5
grub-core/kern/ieee1275/mmap.c
View file

@ -25,7 +25,7 @@ grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
{
grub_ieee1275_phandle_t root;
grub_ieee1275_phandle_t memory;
grub_uint32_t available[32];
grub_uint32_t available[128];
grub_ssize_t available_size;
grub_uint32_t address_cells = 1;
grub_uint32_t size_cells = 1;
@ -49,6 +49,9 @@ grub_machine_mmap_iterate (grub_memory_hook_t hook, void *hook_data)
sizeof available, &available_size))
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
"couldn't examine /memory/available property");
if (available_size < 0 || (grub_size_t) available_size > sizeof (available))
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
"/memory response buffer exceeded");
if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_ADDRESS_CELLS))
{

9
grub-core/kern/misc.c
View file

@ -740,6 +740,12 @@ parse_printf_args (const char *fmt0, struct printf_args *args,
fmt++;
c = *fmt++;
if (c == '%')
{
n--;
continue;
}
if (c == 'l')
{
c = *fmt++;
@ -876,6 +882,7 @@ grub_vsnprintf_real (char *str, grub_size_t max_len, const char *fmt0,
if (c == '%')
{
write_char (str, &count, max_len,c);
n--;
continue;
}
@ -1099,6 +1106,8 @@ grub_fatal (const char *fmt, ...)
grub_vprintf (_(fmt), ap);
va_end (ap);
grub_refresh ();
grub_abort ();
}

9
grub-core/kern/mm.c
View file

@ -325,6 +325,15 @@ grub_memalign (grub_size_t align, grub_size_t size)
if (!grub_mm_base)
goto fail;
if (size > ~(grub_size_t) align)
goto fail;
/* We currently assume at least a 32-bit grub_size_t,
so limiting allocations to <adress space size> - 1MiB
in name of sanity is beneficial. */
if ((size + align) > ~(grub_size_t) 0x100000)
goto fail;
align = (align >> GRUB_MM_ALIGN_LOG2);
if (align == 0)
align = 1;

15
grub-core/kern/rescue_parser.c
View file

@ -43,13 +43,17 @@ grub_rescue_parse_line (char *line,
/* In case of an assignment set the environment accordingly
instead of calling a function. */
if (n == 1 && grub_strchr (line, '='))
if (n == 1)
{
char *val = grub_strchr (args[0], '=');
val[0] = 0;
grub_env_set (args[0], val + 1);
val[0] = '=';
goto quit;
if (val)
{
val[0] = 0;
grub_env_set (args[0], val + 1);
val[0] = '=';
goto quit;
}
}
/* Get the command name. */
@ -72,6 +76,7 @@ grub_rescue_parse_line (char *line,
}
quit:
/* Arguments are returned in single memory chunk separated by zeroes */
grub_free (args[0]);
grub_free (args);