Commit bdf89df3 authored by John Allen's avatar John Allen Committed by Borislav Petkov

x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE

Future AMD CPUs will have microcode patches that exceed the default 4K
patch size. Raise our limit.
Signed-off-by: default avatarJohn Allen <john.allen@amd.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org # v4.14..
Link: https://lkml.kernel.org/r/20200409152931.GA685273@mojo.amd.com
parent b2966952
...@@ -41,7 +41,7 @@ struct microcode_amd { ...@@ -41,7 +41,7 @@ struct microcode_amd {
unsigned int mpb[0]; unsigned int mpb[0];
}; };
#define PATCH_MAX_SIZE PAGE_SIZE #define PATCH_MAX_SIZE (3 * PAGE_SIZE)
#ifdef CONFIG_MICROCODE_AMD #ifdef CONFIG_MICROCODE_AMD
extern void __init load_ucode_amd_bsp(unsigned int family); extern void __init load_ucode_amd_bsp(unsigned int family);
......
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