Messages in this thread Patch in this message | | | From | John Allen <> | Subject | [PATCH] x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE | Date | Thu, 20 Jul 2023 20:28:13 +0000 |
| |
Future AMD cpus will have microcode patches that exceed the current limit of three 4K pages. Increase substantially to avoid future size increases.
Signed-off-by: John Allen <john.allen@amd.com> Cc: stable@vger.kernel.org --- arch/x86/include/asm/microcode_amd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h index e6662adf3af4..e3d5f5ae2f46 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[]; }; -#define PATCH_MAX_SIZE (3 * PAGE_SIZE) +#define PATCH_MAX_SIZE (8 * PAGE_SIZE) #ifdef CONFIG_MICROCODE_AMD extern void __init load_ucode_amd_bsp(unsigned int family); -- 2.39.3
| |