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| author | Aaron Durbin <adurbin@chromium.org> | 2018-04-21 00:10:10 -0600 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2018-04-26 15:18:41 +0000 |
| commit | aae73d763e4119b9881643de7fc782aade16dd30 (patch) | |
| tree | cc767b51ddf90001a960b7bc26295f40b065366b /src/arch/x86 | |
| parent | 4b032e457f1377fc06d12214b0450eae48653565 (diff) | |
| download | coreboot-aae73d763e4119b9881643de7fc782aade16dd30.tar.xz | |
arch/x86: print cr2 value on every exception
Even though most x86 systems don't run with paging on, it's
helpful to always print it out for the ones that do without
making a more complicated handler. New dump will look like
the following:
Unexpected Exception: 6 @ 10:7ab84be2 - Halting
Code: 0 eflags: 00010006 cr2: 00000000
eax: 7abb80ec ebx: deadbeef ecx: 00000000 edx: 00000002
edi: 7abb3000 esi: 00000004 ebp: 7abb2fd8 esp: 7abb2fb0
7ab84ba0: 00 01 00 83 ec 0c 6a 39
7ab84ba8: e8 8a 02 01 00 e8 e1 08
7ab84bb0: 00 00 e8 4e 3d 00 00 59
7ab84bb8: 5b 52 50 e8 f5 3c 00 00
7ab84bc0: c7 04 24 0a 00 00 00 e8
7ab84bc8: 3c 3d 00 00 c7 04 24 80
7ab84bd0: 00 00 00 e8 5f 02 01 00
7ab84bd8: e8 1e 38 01 00 e8 7e 50
7ab84be0: 01 00 0f 0b bb 98 ec ba
7ab84be8: 7a 83 c4 10 8b 03 85 c0
7ab84bf0: 0f 84 be 00 00 00 83 78
7ab84bf8: 04 00 8d 50 08 75 0c 56
7ab84c00: 56 ff 30 52 e8 f8 fe ff
7ab84c08: ff eb 0a 51 51 ff 30 52
7ab84c10: e8 2e ff ff ff 83 c4 10
7ab84c18: 83 c3 04 eb cf 89 d8 e8
BUG=b:72728953
Change-Id: I0e87bbe776f77623ad8297f5d80167998daec6ed
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25762
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/exception.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/arch/x86/exception.c b/src/arch/x86/exception.c index 5a5dfd2831..c89371ee7f 100644 --- a/src/arch/x86/exception.c +++ b/src/arch/x86/exception.c @@ -17,6 +17,7 @@ #include <compiler.h> #include <console/console.h> #include <console/streams.h> +#include <cpu/x86/cr.h> #include <rules.h> #include <stdint.h> #include <string.h> @@ -503,11 +504,11 @@ void x86_exception(struct eregs *info) #define MDUMP_SIZE 0x80 printk(BIOS_EMERG, "Unexpected Exception: %d @ %02x:%08x - Halting\n" - "Code: %d eflags: %08x\n" + "Code: %d eflags: %08x cr2: %08x\n" "eax: %08x ebx: %08x ecx: %08x edx: %08x\n" "edi: %08x esi: %08x ebp: %08x esp: %08x\n", info->vector, info->cs, info->eip, - info->error_code, info->eflags, + info->error_code, info->eflags, read_cr2(), info->eax, info->ebx, info->ecx, info->edx, info->edi, info->esi, info->ebp, info->esp); u8 *code = (u8 *)((uintptr_t)info->eip - (MDUMP_SIZE >> 1)); |