From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Tom Lendacky Date: Thu, 30 Nov 2017 16:46:40 -0600 Subject: [PATCH] x86/microcode/AMD: Add support for fam17h microcode loading MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Thomas Gleixner Reviewed-by: Borislav Petkov Link: https://lkml.kernel.org/r/20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net Signed-off-by: Ingo Molnar Cc: Alice Ferrazzi Signed-off-by: Greg Kroah-Hartman Signed-off-by: Fabian Grünbichler --- arch/x86/kernel/cpu/microcode/amd.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 21b185793c80..248cad00fee6 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -467,6 +467,7 @@ 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: @@ -478,6 +479,9 @@ 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; -- 2.14.2