diff options
| author | John Allen <john.allen@amd.com> | 2020-04-09 17:34:29 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-04-14 17:34:46 +0200 |
| commit | bdf89df3c54518eed879d8fac7577fcfb220c67e (patch) | |
| tree | 87902cf8bd1464880ae7bf01006d6b87d8b9861b /arch/x86 | |
| parent | objtool: Make BP scratch register warning more robust (diff) | |
| download | linux-bdf89df3c54518eed879d8fac7577fcfb220c67e.tar.xz linux-bdf89df3c54518eed879d8fac7577fcfb220c67e.zip | |
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: John Allen <john.allen@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org # v4.14..
Link: https://lkml.kernel.org/r/20200409152931.GA685273@mojo.amd.com
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/microcode_amd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h index 6685e1218959..7063b5a43220 100644 --- a/arch/x86/include/asm/microcode_amd.h +++ b/arch/x86/include/asm/microcode_amd.h @@ -41,7 +41,7 @@ struct microcode_amd { unsigned int mpb[0]; }; -#define PATCH_MAX_SIZE PAGE_SIZE +#define PATCH_MAX_SIZE (3 * PAGE_SIZE) #ifdef CONFIG_MICROCODE_AMD extern void __init load_ucode_amd_bsp(unsigned int family); |