Blame patches.suse/x86-microcode-amd-increase-microcode-patch_max_size.patch
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Borislav Petkov |
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From: John Allen <john.allen@amd.com>
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Borislav Petkov |
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Date: Thu, 9 Apr 2020 10:34:29 -0500
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Borislav Petkov |
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Subject: x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE
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Borislav Petkov |
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Git-commit: bdf89df3c54518eed879d8fac7577fcfb220c67e
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Michal Kubecek |
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Patch-mainline: v5.7-rc2
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Borislav Petkov |
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References: bsc#1169005
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Borislav Petkov |
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Borislav Petkov |
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Future AMD CPUs will have microcode patches that exceed the default 4K
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Borislav Petkov |
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patch size. Raise our limit.
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Borislav Petkov |
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Borislav Petkov |
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Signed-off-by: John Allen <john.allen@amd.com>
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Borislav Petkov |
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Signed-off-by: Borislav Petkov <bp@suse.de>
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Borislav Petkov |
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Cc: stable@vger.kernel.org # v4.14..
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Borislav Petkov |
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Link: https://lkml.kernel.org/r/20200409152931.GA685273@mojo.amd.com
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Borislav Petkov |
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---
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Borislav Petkov |
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arch/x86/include/asm/microcode_amd.h | 2 +-
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Borislav Petkov |
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1 file changed, 1 insertion(+), 1 deletion(-)
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Borislav Petkov |
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Borislav Petkov |
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diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
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Borislav Petkov |
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index 6685e1218959..7063b5a43220 100644
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--- a/arch/x86/include/asm/microcode_amd.h
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Borislav Petkov |
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+++ b/arch/x86/include/asm/microcode_amd.h
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Borislav Petkov |
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@@ -41,7 +41,7 @@ struct microcode_amd {
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Borislav Petkov |
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unsigned int mpb[0];
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Borislav Petkov |
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};
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Borislav Petkov |
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Borislav Petkov |
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-#define PATCH_MAX_SIZE PAGE_SIZE
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Borislav Petkov |
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+#define PATCH_MAX_SIZE (3 * PAGE_SIZE)
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Borislav Petkov |
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Borislav Petkov |
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#ifdef CONFIG_MICROCODE_AMD
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Borislav Petkov |
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extern void __init load_ucode_amd_bsp(unsigned int family);
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Borislav Petkov |
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