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Re: [PATCH v2 3/3] xen/arm: Warn user on cpu errata 832075
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
- Date: Fri, 30 Oct 2020 08:40:11 +0000
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- Cc: Julien Grall <julien@xxxxxxx>, "open list:X86" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Ian Jackson <iwj@xxxxxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Wei Liu <wl@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
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- Thread-topic: [PATCH v2 3/3] xen/arm: Warn user on cpu errata 832075
> On 29 Oct 2020, at 23:32, Stefano Stabellini <sstabellini@xxxxxxxxxx> wrote:
>
> On Thu, 29 Oct 2020, Bertrand Marquis wrote:
>> Hi Julien,
>>
>>> On 28 Oct 2020, at 18:39, Julien Grall <julien@xxxxxxx> wrote:
>>>
>>> Hi Bertrand,
>>>
>>> On 26/10/2020 16:21, Bertrand Marquis wrote:
>>>> When a Cortex A57 processor is affected by CPU errata 832075, a guest
>>>> not implementing the workaround for it could deadlock the system.
>>>> Add a warning during boot informing the user that only trusted guests
>>>> should be executed on the system.
>>>> An equivalent warning is already given to the user by KVM on cores
>>>> affected by this errata.
>>>> Also taint the hypervisor as unsecure when this errata applies and
>>>> mention Cortex A57 r0p0 - r1p2 as not security supported in SUPPORT.md
>>>> Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
>>>
>>> Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>
>>
>> Thanks
>>
>>>
>>> If you don't need to resend the series, then I would be happy to fix the
>>> typo pointed out by George on commit.
>>
>> There is only the condensing from Stefano.
>> If you can handle that on commit to great but if you need me to send a v3 to
>> make your life easier do not hesitate to tell me
>
> I have just done the committing
Thanks a lot :-)
Cheers
Bertrand
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