* [PATCH] x86/umip: Make the UMIP activated message generic
@ 2018-12-04 22:27 Lendacky, Thomas
2018-12-05 7:47 ` Ingo Molnar
0 siblings, 1 reply; 3+ messages in thread
From: Lendacky, Thomas @ 2018-12-04 22:27 UTC (permalink / raw)
To: linux-kernel@vger.kernel.org
Cc: Ricardo Neri, x86@kernel.org, Ingo Molnar, Borislav Petkov,
H. Peter Anvin, Thomas Gleixner
The User Mode Instruction Prevention (UMIP) feature is part of the x86_64
instruction set architecture and not specific to Intel. Make the message
generic.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
This patch is against the x86/cpu branch of the tip tree:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cpu
arch/x86/kernel/cpu/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2c56b80..cb28e98 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -353,7 +353,7 @@ static __always_inline void setup_umip(struct cpuinfo_x86 *c)
cr4_set_bits(X86_CR4_UMIP);
- pr_info_once("x86/cpu: Intel User Mode Instruction Prevention (UMIP) activated\n");
+ pr_info_once("x86/cpu: User Mode Instruction Prevention (UMIP) activated\n");
return;
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] x86/umip: Make the UMIP activated message generic
2018-12-04 22:27 [PATCH] x86/umip: Make the UMIP activated message generic Lendacky, Thomas
@ 2018-12-05 7:47 ` Ingo Molnar
2018-12-05 14:43 ` Lendacky, Thomas
0 siblings, 1 reply; 3+ messages in thread
From: Ingo Molnar @ 2018-12-05 7:47 UTC (permalink / raw)
To: Lendacky, Thomas
Cc: linux-kernel@vger.kernel.org, Ricardo Neri, x86@kernel.org,
Ingo Molnar, Borislav Petkov, H. Peter Anvin, Thomas Gleixner
* Lendacky, Thomas <Thomas.Lendacky@amd.com> wrote:
> The User Mode Instruction Prevention (UMIP) feature is part of the x86_64
> instruction set architecture and not specific to Intel. Make the message
> generic.
>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
>
> This patch is against the x86/cpu branch of the tip tree:
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cpu
>
> arch/x86/kernel/cpu/common.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
> index 2c56b80..cb28e98 100644
> --- a/arch/x86/kernel/cpu/common.c
> +++ b/arch/x86/kernel/cpu/common.c
> @@ -353,7 +353,7 @@ static __always_inline void setup_umip(struct cpuinfo_x86 *c)
>
> cr4_set_bits(X86_CR4_UMIP);
>
> - pr_info_once("x86/cpu: Intel User Mode Instruction Prevention (UMIP) activated\n");
> + pr_info_once("x86/cpu: User Mode Instruction Prevention (UMIP) activated\n");
Is there any public information about which AMD CPUs are going to support
it?
The latest AMD CPU I can test on is a Ryzen Threadripper 1950X, and that
doesn't have UMIP.
Thanks,
Ingo
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] x86/umip: Make the UMIP activated message generic
2018-12-05 7:47 ` Ingo Molnar
@ 2018-12-05 14:43 ` Lendacky, Thomas
0 siblings, 0 replies; 3+ messages in thread
From: Lendacky, Thomas @ 2018-12-05 14:43 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel@vger.kernel.org, Ricardo Neri, x86@kernel.org,
Ingo Molnar, Borislav Petkov, H. Peter Anvin, Thomas Gleixner
On 12/05/2018 01:47 AM, Ingo Molnar wrote:
>
> * Lendacky, Thomas <Thomas.Lendacky@amd.com> wrote:
>
>> The User Mode Instruction Prevention (UMIP) feature is part of the x86_64
>> instruction set architecture and not specific to Intel. Make the message
>> generic.
>>
>> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
>> ---
>>
>> This patch is against the x86/cpu branch of the tip tree:
>> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/cpu
>>
>> arch/x86/kernel/cpu/common.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
>> index 2c56b80..cb28e98 100644
>> --- a/arch/x86/kernel/cpu/common.c
>> +++ b/arch/x86/kernel/cpu/common.c
>> @@ -353,7 +353,7 @@ static __always_inline void setup_umip(struct cpuinfo_x86 *c)
>>
>> cr4_set_bits(X86_CR4_UMIP);
>>
>> - pr_info_once("x86/cpu: Intel User Mode Instruction Prevention (UMIP) activated\n");
>> + pr_info_once("x86/cpu: User Mode Instruction Prevention (UMIP) activated\n");
>
> Is there any public information about which AMD CPUs are going to support
> it?
No public information yet...
Thanks,
Tom
>
> The latest AMD CPU I can test on is a Ryzen Threadripper 1950X, and that
> doesn't have UMIP.
>
> Thanks,
>
> Ingo
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-12-04 22:27 [PATCH] x86/umip: Make the UMIP activated message generic Lendacky, Thomas
2018-12-05 7:47 ` Ingo Molnar
2018-12-05 14:43 ` Lendacky, Thomas
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