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Re: [PATCH] x86/viridian: EOI MSR should always happen in affected vCPU context
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 5 Jan 2022 08:46:34 +0100
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- Cc: Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Roger Pau Monne <roger.pau@xxxxxxxxxx>, paul@xxxxxxx
- Delivery-date: Wed, 05 Jan 2022 07:46:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15.04.2021 11:57, Jan Beulich wrote:
> On 01.04.2021 12:50, Paul Durrant wrote:
>> On 01/04/2021 11:22, Roger Pau Monne wrote:
>>> The HV_X64_MSR_EOI wrmsr should always happen with the target vCPU
>>> as current, as there's no support for EOI'ing interrupts on a remote
>>> vCPU.
>>>
>>> While there also turn the unconditional assert at the top of the
>>> function into an error on non-debug builds.
>>>
>>> No functional change intended.
>>>
>>> Requested-by: Jan Beulich <jbeulich@xxxxxxxx>
>>> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
>>
>> Reviewed-by: Paul Durrant <paul@xxxxxxx>
>
> Andrew,
>
> can you please clarify whether your concern was addressed and this can
> go in as-is, or (if not) reply to what Roger and I have said in response?
This continues to be pending. I guess I'll consider ongoing silence as an
indication of your concerns having been addressed, committing the patch
perhaps early next week.
Jan
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