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| author | Huang Ying <ying.huang@intel.com> | 2009-07-31 09:41:40 +0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-08-10 13:58:27 -0700 |
| commit | 5b7e88edc6193f36941bccbfd5ed9ed5fe27d2e1 (patch) | |
| tree | 2f2cb2ab05cef96bae484d829bef19e925961f52 /arch/x86/include/asm/mce.h | |
| parent | f3a0867b12e0cf1512c0bd0665f2339fc75ed2a8 (diff) | |
| download | lwn-5b7e88edc6193f36941bccbfd5ed9ed5fe27d2e1.tar.gz lwn-5b7e88edc6193f36941bccbfd5ed9ed5fe27d2e1.zip | |
x86, mce: Support specifying context for software mce injection
The cpu context is specified via the new mce.inject_flags fields.
This allows more realistic machine check testing in different
situations. "RANDOM" context is implemented via NMI broadcasting to
add randomization to testing.
AK: Fix NMI broadcasting check. Fix 32-bit building. Some race
fixes. Move to module. Various changes
ChangeLog:
v3:
- Re-based on latest x86-tip.git/mce4
- Fix 32-bit building
v2:
- Re-base on latest x86-tip.git/mce3
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/mce.h')
| -rw-r--r-- | arch/x86/include/asm/mce.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index ad7535372918..8945be9ad2b1 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -38,6 +38,13 @@ #define MCM_ADDR_MEM 3 /* memory address */ #define MCM_ADDR_GENERIC 7 /* generic */ +#define MCJ_CTX_MASK 3 +#define MCJ_CTX(flags) ((flags) & MCJ_CTX_MASK) +#define MCJ_CTX_RANDOM 0 /* inject context: random */ +#define MCJ_CTX_PROCESS 1 /* inject context: process */ +#define MCJ_CTX_IRQ 2 /* inject context: IRQ */ +#define MCJ_NMI_BROADCAST 4 /* do NMI broadcasting */ + /* Fields are zero when not available */ struct mce { __u64 status; @@ -48,8 +55,8 @@ struct mce { __u64 tsc; /* cpu time stamp counter */ __u64 time; /* wall time_t when error was detected */ __u8 cpuvendor; /* cpu vendor as encoded in system.h */ - __u8 pad1; - __u16 pad2; + __u8 inject_flags; /* software inject flags */ + __u16 pad; __u32 cpuid; /* CPUID 1 EAX */ __u8 cs; /* code segment */ __u8 bank; /* machine check bank */ |