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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2017-11-30 16:46:40 -0600 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2020-04-28 19:02:18 +0100 |
| commit | 2d3ba5e1f01a52228d74a0ee9a6c56031f68168e (patch) | |
| tree | 9b51920eff249e3f090040b795ea112735b1868a /arch | |
| parent | 93864704f211e55eddec0c03ca300b1cf6414d8c (diff) | |
| download | linux-stable-2d3ba5e1f01a52228d74a0ee9a6c56031f68168e.tar.gz linux-stable-2d3ba5e1f01a52228d74a0ee9a6c56031f68168e.tar.bz2 linux-stable-2d3ba5e1f01a52228d74a0ee9a6c56031f68168e.zip | |
x86/microcode/AMD: Add support for fam17h microcode loading
commit f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf upstream.
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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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 ff16949e7f3d..6068c25e7c48 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -154,6 +154,7 @@ 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: @@ -165,6 +166,9 @@ 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; |