diff options
| author |   Tom Lendacky <thomas.lendacky@amd.com> | 2017-11-30 16:46:40 -0600 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-12-06 12:27:24 +0100 |
| commit | f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf (patch) | |
| tree | c3ed3004b5c39c984fbef97fc9ac1ee0a0a481d4 /arch | |
| parent | x86/cpufeatures: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD (diff) | |
| download | linux-dev-f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf.tar.xz linux-dev-f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf.zip | |
x86/microcode/AMD: Add support for fam17h microcode loading
The size for the Microcode Patch Block (MPB) for an AMD family 17h
processor is 3200 bytes. Add a #define for fam17h so that it does
not default to 2048 bytes and fail a microcode load/update.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@alien8.de>
Link: https://lkml.kernel.org/r/20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/amd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index c6daec4bdba5..330b8462d426 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -470,6 +470,7 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size, #define F14H_MPB_MAX_SIZE 1824 #define F15H_MPB_MAX_SIZE 4096 #define F16H_MPB_MAX_SIZE 3458 +#define F17H_MPB_MAX_SIZE 3200 switch (family) { case 0x14: @@ -481,6 +482,9 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size, case 0x16: max_size = F16H_MPB_MAX_SIZE; break; + case 0x17: + max_size = F17H_MPB_MAX_SIZE; + break; default: max_size = F1XH_MPB_MAX_SIZE; break; |