renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-26 06:04:14 +08:00
Code

efi: Decode UEFI-defined IA32/X64 Error Structure GUIDs

Browse Source 
For easier handling, match the known IA32/X64 error structure GUIDs to
enums.

Also, print out the name of the matching Error Structure Type.

Only print the GUID for unknown types.

GUIDs taken from UEFI 2.7 section N.2.4.2.1 IA32/X64 Processor Error
Information Structure.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180504060003.19618-7-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Yazen Ghannam 2018-05-04 07:59:52 +02:00 committed by Ingo Molnar
parent 7c9449b8c8
commit dc2d26e4b6
1 changed files with 45 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/firmware/efi/cper-x86.c
View File

@ -11,17 +11,53 @@
#define VALID_CPUID_INFO BIT_ULL(1)
#define VALID_PROC_ERR_INFO_NUM(bits) (((bits) & GENMASK_ULL(7, 2)) >> 2)
#define INFO_ERR_STRUCT_TYPE_CACHE \
GUID_INIT(0xA55701F5, 0xE3EF, 0x43DE, 0xAC, 0x72, 0x24, 0x9B, \
0x57, 0x3F, 0xAD, 0x2C)
#define INFO_ERR_STRUCT_TYPE_TLB \
GUID_INIT(0xFC06B535, 0x5E1F, 0x4562, 0x9F, 0x25, 0x0A, 0x3B, \
0x9A, 0xDB, 0x63, 0xC3)
#define INFO_ERR_STRUCT_TYPE_BUS \
GUID_INIT(0x1CF3F8B3, 0xC5B1, 0x49a2, 0xAA, 0x59, 0x5E, 0xEF, \
0x92, 0xFF, 0xA6, 0x3C)
#define INFO_ERR_STRUCT_TYPE_MS \
GUID_INIT(0x48AB7F57, 0xDC34, 0x4f6c, 0xA7, 0xD3, 0xB0, 0xB5, \
0xB0, 0xA7, 0x43, 0x14)
#define INFO_VALID_CHECK_INFO BIT_ULL(0)
#define INFO_VALID_TARGET_ID BIT_ULL(1)
#define INFO_VALID_REQUESTOR_ID BIT_ULL(2)
#define INFO_VALID_RESPONDER_ID BIT_ULL(3)
#define INFO_VALID_IP BIT_ULL(4)
enum err_types {
ERR_TYPE_CACHE = 0,
ERR_TYPE_TLB,
ERR_TYPE_BUS,
ERR_TYPE_MS,
N_ERR_TYPES
};
static enum err_types cper_get_err_type(const guid_t *err_type)
{
if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_CACHE))
return ERR_TYPE_CACHE;
else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_TLB))
return ERR_TYPE_TLB;
else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_BUS))
return ERR_TYPE_BUS;
else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_MS))
return ERR_TYPE_MS;
else
return N_ERR_TYPES;
}
void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc)
{
int i;
struct cper_ia_err_info *err_info;
char newpfx[64];
u8 err_type;
if (proc->validation_bits & VALID_LAPIC_ID)
printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id);
@ -38,8 +74,15 @@ void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc)
for (i = 0; i < VALID_PROC_ERR_INFO_NUM(proc->validation_bits); i++) {
printk("%sError Information Structure %d:\n", pfx, i);
printk("%sError Structure Type: %pUl\n", newpfx,
&err_info->err_type);
err_type = cper_get_err_type(&err_info->err_type);
printk("%sError Structure Type: %s\n", newpfx,
err_type < ARRAY_SIZE(cper_proc_error_type_strs) ?
cper_proc_error_type_strs[err_type] : "unknown");
if (err_type >= N_ERR_TYPES) {
printk("%sError Structure Type: %pUl\n", newpfx,
&err_info->err_type);
}
if (err_info->validation_bits & INFO_VALID_CHECK_INFO) {
printk("%sCheck Information: 0x%016llx\n", newpfx,