linux-kernel - Re: [PATCH kernel 0/9] KVM: SEV: Enable AMD SEV-ES DebugSwap

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Date:   Sat, 29 Jul 2023 11:57:40 +1000
From:   Alexey Kardashevskiy <aik@....com>
To:     Sean Christopherson <seanjc@...gle.com>, kvm@...r.kernel.org
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [PATCH kernel 0/9] KVM: SEV: Enable AMD SEV-ES DebugSwap



On 29/7/23 09:49, Sean Christopherson wrote:
> On Thu, 15 Jun 2023 16:37:48 +1000, Alexey Kardashevskiy wrote:
>> This is to use another AMD SEV-ES hardware assisted register swap,
>> more detail in 6/9. In the process it's been suggested to fix other
>> things, here is the attempt, with the great help of amders.
>>
>> The previous conversation is here:
>> https://lore.kernel.org/r/20230411125718.2297768-1-aik@amd.com
>>
>> [...]
> 
> Finally applied to kvm-x86 svm, thanks!  Though I was *really* tempted to see
> just how snarky the pings would get at week 5+ ;-)

Thanks!
Here is a gist what it could look like:
https://www.spinics.net/lists/kvm-ppc/msg20903.html :)


> 
> [1/9] KVM: SEV: move set_dr_intercepts/clr_dr_intercepts from the header
>        https://github.com/kvm-x86/linux/commit/b265ee7bae11
> [2/9] KVM: SEV: Move SEV's GP_VECTOR intercept setup to SEV
>        https://github.com/kvm-x86/linux/commit/29de732cc95c
> [3/9] KVM: SVM: Rewrite sev_es_prepare_switch_to_guest()'s comment about swap types
>        https://github.com/kvm-x86/linux/commit/f8d808ed1ba0
> [4/9] KVM: SEV-ES: explicitly disable debug
>        https://github.com/kvm-x86/linux/commit/2837dd00f8fc
> [5/9] KVM: SVM/SEV/SEV-ES: Rework intercepts
>        https://github.com/kvm-x86/linux/commit/5aefd3a05fe1
> [6/9] KVM: SEV: Enable data breakpoints in SEV-ES
>        https://github.com/kvm-x86/linux/commit/fb71b1298709
> [7/9] KVM: SEV-ES: Eliminate #DB intercept when DebugSwap enabled
>        https://github.com/kvm-x86/linux/commit/8b54cc7e1817
> [8/9] KVM: SVM: Don't defer NMI unblocking until next exit for SEV-ES guests
>        https://github.com/kvm-x86/linux/commit/c54268e1036f
> [9/9] KVM: SVM: Don't try to pointlessly single-step SEV-ES guests for NMI window
>        https://github.com/kvm-x86/linux/commit/e11f81043a12
> 
> --
> https://github.com/kvm-x86/linux/tree/next
> https://github.com/kvm-x86/linux/tree/fixes

-- 
Alexey