diff options
Diffstat (limited to 'qemu/roms/seabios/src/fw/biostables.c')
| -rw-r--r-- | qemu/roms/seabios/src/fw/biostables.c | 66 |
1 files changed, 48 insertions, 18 deletions
diff --git a/qemu/roms/seabios/src/fw/biostables.c b/qemu/roms/seabios/src/fw/biostables.c index 50a891be8..9fb9ff9df 100644 --- a/qemu/roms/seabios/src/fw/biostables.c +++ b/qemu/roms/seabios/src/fw/biostables.c @@ -6,14 +6,15 @@ #include "byteorder.h" // le32_to_cpu #include "config.h" // CONFIG_* +#include "hw/pci.h" // pci_config_writeb #include "malloc.h" // malloc_fseg +#include "memmap.h" // SYMBOL #include "output.h" // dprintf -#include "hw/pci.h" // pci_config_writeb +#include "romfile.h" // romfile_find #include "std/acpi.h" // struct rsdp_descriptor #include "std/mptable.h" // MPTABLE_SIGNATURE #include "std/pirtable.h" // struct pir_header #include "std/smbios.h" // struct smbios_entry_point -#include "romfile.h" #include "string.h" // memcpy #include "util.h" // copy_table #include "x86.h" // outb @@ -54,6 +55,11 @@ copy_mptable(void *pos) return; u32 length = p->length * 16; u16 mpclength = ((struct mptable_config_s *)p->physaddr)->length; + if (length + mpclength > BUILD_MAX_MPTABLE_FSEG) { + dprintf(1, "Skipping MPTABLE copy due to large size (%d bytes)\n" + , length + mpclength); + return; + } // Allocate final memory location. (In theory the config // structure can go in high memory, but Linux kernels before // v2.6.30 crash with that.) @@ -117,9 +123,8 @@ copy_acpi_rsdp(void *pos) void *find_acpi_rsdp(void) { - extern u8 zonefseg_start[], zonefseg_end[]; - unsigned long start = (unsigned long)zonefseg_start; - unsigned long end = (unsigned long)zonefseg_end; + unsigned long start = SYMBOL(zonefseg_start); + unsigned long end = SYMBOL(zonefseg_end); unsigned long pos; for (pos = ALIGN(start, 0x10); pos <= ALIGN_DOWN(end, 0x10); pos += 0x10) @@ -271,7 +276,7 @@ copy_smbios(void *pos) if (SMBiosAddr) return; struct smbios_entry_point *p = pos; - if (memcmp(p->anchor_string, "_SM_", 4)) + if (p->signature != SMBIOS_SIGNATURE) return; if (checksum(pos, 0x10) != 0) return; @@ -301,17 +306,42 @@ display_uuid(void) if (memcmp(uuid, empty_uuid, sizeof(empty_uuid)) == 0) return; - printf("Machine UUID" - " %02x%02x%02x%02x" - "-%02x%02x" - "-%02x%02x" - "-%02x%02x" - "-%02x%02x%02x%02x%02x%02x\n" - , uuid[ 0], uuid[ 1], uuid[ 2], uuid[ 3] - , uuid[ 4], uuid[ 5] - , uuid[ 6], uuid[ 7] - , uuid[ 8], uuid[ 9] - , uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15]); + /* + * According to SMBIOS v2.6 the first three fields are encoded in + * little-endian format. Versions prior to v2.6 did not specify + * the encoding, but we follow dmidecode and assume big-endian + * encoding. + */ + if (SMBiosAddr->smbios_major_version > 2 || + (SMBiosAddr->smbios_major_version == 2 && + SMBiosAddr->smbios_minor_version >= 6)) { + printf("Machine UUID" + " %02x%02x%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x%02x%02x%02x%02x\n" + , uuid[ 3], uuid[ 2], uuid[ 1], uuid[ 0] + , uuid[ 5], uuid[ 4] + , uuid[ 7], uuid[ 6] + , uuid[ 8], uuid[ 9] + , uuid[10], uuid[11], uuid[12] + , uuid[13], uuid[14], uuid[15]); + } else { + printf("Machine UUID" + " %02x%02x%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x" + "-%02x%02x%02x%02x%02x%02x\n" + , uuid[ 0], uuid[ 1], uuid[ 2], uuid[ 3] + , uuid[ 4], uuid[ 5] + , uuid[ 6], uuid[ 7] + , uuid[ 8], uuid[ 9] + , uuid[10], uuid[11], uuid[12] + , uuid[13], uuid[14], uuid[15]); + } + return; } } @@ -447,7 +477,7 @@ void smbios_setup(void) { if (smbios_romfile_setup()) - return; + return; smbios_legacy_setup(); } |