linux-kernel - Re: [PATCH v4 0/3] VMM can handle guest SEA via KVM_EXIT_ARM

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Message-ID: <CACw3F51cxSgd-=D46A6X6GptEZS8-JZ_MnB_yK_ZR1wktunYRA@mail.gmail.com>
Date: Thu, 13 Nov 2025 14:14:08 -0800
From: Jiaqi Yan <jiaqiyan@...gle.com>
To: Oliver Upton <oupton@...nel.org>, oliver.upton@...ux.dev
Cc: maz@...nel.org, duenwen@...gle.com, rananta@...gle.com, 
	jthoughton@...gle.com, vsethi@...dia.com, joey.gouly@....com, 
	suzuki.poulose@....com, yuzenghui@...wei.com, catalin.marinas@....com, 
	will@...nel.org, pbonzini@...hat.com, corbet@....net, shuah@...nel.org, 
	kvm@...r.kernel.org, kvmarm@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	Jason Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH v4 0/3] VMM can handle guest SEA via KVM_EXIT_ARM_SEA

On Thu, Nov 13, 2025 at 1:06 PM Oliver Upton <oupton@...nel.org> wrote:
>
> On Mon, 13 Oct 2025 18:59:00 +0000, Jiaqi Yan wrote:
> > Problem
> > =======
> >
> > When host APEI is unable to claim a synchronous external abort (SEA)
> > during guest abort, today KVM directly injects an asynchronous SError
> > into the VCPU then resumes it. The injected SError usually results in
> > unpleasant guest kernel panic.
> >
> > [...]
>
> I've gone ahead and done some cleanups, especially around documentation.
>
> Applied to next, thanks!

Many thanks, Oliver!

I assume I still need to send out v5 with typo fixed, comments
addressed, and your cleanups applied? If so, what specific tag/release
you want me to rebase v5 onto?

>
> [1/3] KVM: arm64: VM exit to userspace to handle SEA
>       https://git.kernel.org/kvmarm/kvmarm/c/ad9c62bd8946
> [2/3] KVM: selftests: Test for KVM_EXIT_ARM_SEA
>       https://git.kernel.org/kvmarm/kvmarm/c/feee9ef7ac16
> [3/3] Documentation: kvm: new UAPI for handling SEA
>       https://git.kernel.org/kvmarm/kvmarm/c/4debb5e8952e
>
> --
> Best,
> Oliver