linux-kernel - Re: [PATCH] KVM: x86: Forcibly leave nested if RSM to L2 hits shutdown

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Message-ID: <172594250394.1552483.14960866497505256647.b4-ty@google.com>
Date: Mon,  9 Sep 2024 21:56:30 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	syzbot+988d9efcdf137bc05f66@...kaller.appspotmail.com, 
	Zheyu Ma <zheyuma97@...il.com>, Kishen Maloor <kishen.maloor@...el.com>
Subject: Re: [PATCH] KVM: x86: Forcibly leave nested if RSM to L2 hits shutdown

On Fri, 06 Sep 2024 09:13:37 -0700, Sean Christopherson wrote:
> Leave nested mode before synthesizing shutdown (a.k.a. TRIPLE_FAULT) if
> RSM fails when resuming L2 (a.k.a. guest mode).  Architecturally, shutdown
> on RSM occurs _before_ the transition back to guest mode on both Intel and
> AMD.
> 
> On Intel, per the SDM pseudocode, SMRAM state is loaded before critical
> VMX state:
> 
> [...]

Applied to kvm-x86 misc, thanks!

[1/1] KVM: x86: Forcibly leave nested if RSM to L2 hits shutdown
      https://github.com/kvm-x86/linux/commit/3f6821aa147b

--
https://github.com/kvm-x86/linux/tree/next