From: tip-bot for Tom Lendacky <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: mingo@kernel.org, tglx@linutronix.de, bp@alien8.de,
thomas.lendacky@amd.com, linux-kernel@vger.kernel.org,
hpa@zytor.com
Subject: [tip:x86/urgent] x86/microcode/AMD: Add support for fam17h microcode loading
Date: Wed, 6 Dec 2017 03:35:20 -0800 [thread overview]
Message-ID: <tip-f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf@git.kernel.org> (raw)
In-Reply-To: <20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net>
Commit-ID: f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf
Gitweb: https://git.kernel.org/tip/f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf
Author: Tom Lendacky <thomas.lendacky@amd.com>
AuthorDate: Thu, 30 Nov 2017 16:46:40 -0600
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 6 Dec 2017 12:27:24 +0100
x86/microcode/AMD: Add support for fam17h microcode loading
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 <thomas.lendacky@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@alien8.de>
Link: https://lkml.kernel.org/r/20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 c6daec4..330b846 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -470,6 +470,7 @@ 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:
@@ -481,6 +482,9 @@ 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;
next prev parent reply other threads:[~2017-12-06 11:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-30 22:46 [PATCH] x86/microcode/AMD: Add support for fam17h microcode loading Tom Lendacky
2017-11-30 22:52 ` Borislav Petkov
2017-12-04 22:09 ` [tip:x86/urgent] " tip-bot for Tom Lendacky
2017-12-06 11:35 ` tip-bot for Tom Lendacky [this message]
2017-12-10 20:20 ` [PATCH] " Jon Masters
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