PATCHES/patches/x86-microcode-AMD-Add-support-for-fam17h-microcode-l.patch

From f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Thu, 30 Nov 2017 16:46:40 -0600
Subject: [PATCH] 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 c6daec4bdba5..330b8462d426 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;
-- 
2.15.1

1	From f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf Mon Sep 17 00:00:00 2001
2	From: Tom Lendacky <thomas.lendacky@amd.com>
3	Date: Thu, 30 Nov 2017 16:46:40 -0600
4	Subject: [PATCH] x86/microcode/AMD: Add support for fam17h microcode loading
5
6	The size for the Microcode Patch Block (MPB) for an AMD family 17h
7	processor is 3200 bytes. Add a #define for fam17h so that it does
8	not default to 2048 bytes and fail a microcode load/update.
9
10	Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
11	Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
12	Reviewed-by: Borislav Petkov <bp@alien8.de>
13	Link: https://lkml.kernel.org/r/20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net
14	Signed-off-by: Ingo Molnar <mingo@kernel.org>
15	---
16	arch/x86/kernel/cpu/microcode/amd.c \| 4 ++++
17	1 file changed, 4 insertions(+)
18
19	diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
20	index c6daec4bdba5..330b8462d426 100644
21	--- a/arch/x86/kernel/cpu/microcode/amd.c
22	+++ b/arch/x86/kernel/cpu/microcode/amd.c
23	@@ -470,6 +470,7 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size,
24	#define F14H_MPB_MAX_SIZE 1824
25	#define F15H_MPB_MAX_SIZE 4096
26	#define F16H_MPB_MAX_SIZE 3458
27	+#define F17H_MPB_MAX_SIZE 3200
28
29	switch (family) {
30	case 0x14:
31	@@ -481,6 +482,9 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size,
32	case 0x16:
33	max_size = F16H_MPB_MAX_SIZE;
34	break;
35	+ case 0x17:
36	+ max_size = F17H_MPB_MAX_SIZE;
37	+ break;
38	default:
39	max_size = F1XH_MPB_MAX_SIZE;
40	break;
41	--
42	2.15.1
43