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59d5af67 | 1 | From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
04f3b8be FG |
2 | From: Tom Lendacky <thomas.lendacky@amd.com> |
3 | Date: Thu, 30 Nov 2017 16:46:40 -0600 | |
59d5af67 | 4 | Subject: [PATCH] x86/microcode/AMD: Add support for fam17h microcode loading |
04f3b8be FG |
5 | MIME-Version: 1.0 |
6 | Content-Type: text/plain; charset=UTF-8 | |
7 | Content-Transfer-Encoding: 8bit | |
8 | ||
9 | commit f4e9b7af0cd58dd039a0fb2cd67d57cea4889abf upstream. | |
10 | ||
11 | The size for the Microcode Patch Block (MPB) for an AMD family 17h | |
12 | processor is 3200 bytes. Add a #define for fam17h so that it does | |
13 | not default to 2048 bytes and fail a microcode load/update. | |
14 | ||
15 | Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> | |
16 | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> | |
17 | Reviewed-by: Borislav Petkov <bp@alien8.de> | |
18 | Link: https://lkml.kernel.org/r/20171130224640.15391.40247.stgit@tlendack-t1.amdoffice.net | |
19 | Signed-off-by: Ingo Molnar <mingo@kernel.org> | |
20 | Cc: Alice Ferrazzi <alicef@gentoo.org> | |
21 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
22 | Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com> | |
23 | --- | |
24 | arch/x86/kernel/cpu/microcode/amd.c | 4 ++++ | |
25 | 1 file changed, 4 insertions(+) | |
26 | ||
27 | diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c | |
28 | index 21b185793c80..248cad00fee6 100644 | |
29 | --- a/arch/x86/kernel/cpu/microcode/amd.c | |
30 | +++ b/arch/x86/kernel/cpu/microcode/amd.c | |
31 | @@ -467,6 +467,7 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size, | |
32 | #define F14H_MPB_MAX_SIZE 1824 | |
33 | #define F15H_MPB_MAX_SIZE 4096 | |
34 | #define F16H_MPB_MAX_SIZE 3458 | |
35 | +#define F17H_MPB_MAX_SIZE 3200 | |
36 | ||
37 | switch (family) { | |
38 | case 0x14: | |
39 | @@ -478,6 +479,9 @@ static unsigned int verify_patch_size(u8 family, u32 patch_size, | |
40 | case 0x16: | |
41 | max_size = F16H_MPB_MAX_SIZE; | |
42 | break; | |
43 | + case 0x17: | |
44 | + max_size = F17H_MPB_MAX_SIZE; | |
45 | + break; | |
46 | default: | |
47 | max_size = F1XH_MPB_MAX_SIZE; | |
48 | break; | |
49 | -- | |
50 | 2.14.2 | |
51 |