linux-kernel - Re: [PATCH 1/2] KVM: x86/mmu: Add RET_PF_RETRY_INVALID

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Message-ID: <ef5e4e27f482f573546c386321f07e150951ff83.camel@intel.com>
Date: Mon, 19 May 2025 16:17:25 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "seanjc@...gle.com" <seanjc@...gle.com>
CC: "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "Chatre, Reinette"
	<reinette.chatre@...el.com>, "pbonzini@...hat.com" <pbonzini@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Zhao, Yan Y"
	<yan.y.zhao@...el.com>
Subject: Re: [PATCH 1/2] KVM: x86/mmu: Add RET_PF_RETRY_INVALID_SLOT for fault
 retry on invalid slot

On Mon, 2025-05-19 at 08:53 -0700, Sean Christopherson wrote:
> Yeah, and I'd prefer not to bleed these details into userspace (or into KVM in
> general)
> 

Makes sense. 

> , hence my question about whether or not a "real" VMM hit this.

None that I know of.