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Message-ID: <05973da0-f68c-4c84-8806-bdba92f2ed6e@xen.org>
Date: Tue, 20 Feb 2024 16:03:49 +0000
From: Paul Durrant <xadimgnik@...il.com>
To: Sean Christopherson <seanjc@...gle.com>,
 Paolo Bonzini <pbonzini@...hat.com>, Jonathan Corbet <corbet@....net>,
 Christian Borntraeger <borntraeger@...ux.ibm.com>,
 Janosch Frank <frankja@...ux.ibm.com>,
 Claudio Imbrenda <imbrenda@...ux.ibm.com>,
 David Hildenbrand <david@...hat.com>, Heiko Carstens <hca@...ux.ibm.com>,
 Vasily Gorbik <gor@...ux.ibm.com>, Alexander Gordeev
 <agordeev@...ux.ibm.com>, Sven Schnelle <svens@...ux.ibm.com>,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
 David Woodhouse <dwmw2@...radead.org>, Shuah Khan <shuah@...nel.org>,
 kvm@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
 linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v13 00/21] KVM: xen: update shared_info and vcpu_info
 handling

On 20/02/2024 15:55, Sean Christopherson wrote:
> On Thu, 15 Feb 2024 15:28:55 +0000, Paul Durrant wrote:
>> From: Paul Durrant <pdurrant@...zon.com>
>>
>> This series contains a new patch from Sean added since v12 [1]:
>>
>> * KVM: s390: Refactor kvm_is_error_gpa() into kvm_is_gpa_in_memslot()
>>
>> This frees up the function name kvm_is_error_gpa() such that it can then be
>> re-defined in:
>>
>> [...]
> 
> *sigh*
> 
> I forgot to hit "send" on this yesterday.  But lucky for me, that worked out in
> my favor as I needed to rebase on top of kvm/kvm-uapi to avoid pointless conflicts
> in the uapi headeres.
> 
> So....
> 
> Applied to kvm-x86 xen, minus 18 and 19 (trylock stuff) and 21 (locking cleanup
> that we're doing elsewhere).
> 

Looks like you meant 17 & 18?

> Paul and David, please take (another) look at the end result to make sure you don't
> object to any of my tweaks and that I didn't botch anything.
> 

What was the issue with 17? It was reasonable clean-up and I'd like to 
keep it even without 18 being applied (and I totally understand your 
reasons for that).

> s390 folks, I'm applying/pushing now to get it into -next asap, but I'll make
> sure to get acks/reviews on patch 08/21 before I do anything else with this
> branch/series.
> 
> Thanks!
> 
> [01/21] KVM: pfncache: Add a map helper function
>          https://github.com/kvm-x86/linux/commit/f39b80e3ff12
> [02/21] KVM: pfncache: remove unnecessary exports
>          https://github.com/kvm-x86/linux/commit/41496fffc0e1
> [03/21] KVM: x86/xen: mark guest pages dirty with the pfncache lock held
>          https://github.com/kvm-x86/linux/commit/4438355ec6e1
> [04/21] KVM: pfncache: add a mark-dirty helper
>          https://github.com/kvm-x86/linux/commit/78b74638eb6d
> [05/21] KVM: pfncache: remove KVM_GUEST_USES_PFN usage
>          https://github.com/kvm-x86/linux/commit/a4bff3df5147
> [06/21] KVM: pfncache: stop open-coding offset_in_page()
>          https://github.com/kvm-x86/linux/commit/53e63e953e14
> [07/21] KVM: pfncache: include page offset in uhva and use it consistently
>          https://github.com/kvm-x86/linux/commit/406c10962a4c
> [08/21] KVM: s390: Refactor kvm_is_error_gpa() into kvm_is_gpa_in_memslot()
>          https://github.com/kvm-x86/linux/commit/9e7325acb3dc
> [09/21] KVM: pfncache: allow a cache to be activated with a fixed (userspace) HVA
>          https://github.com/kvm-x86/linux/commit/721f5b0dda78
> [10/21] KVM: x86/xen: separate initialization of shared_info cache and content
>          https://github.com/kvm-x86/linux/commit/c01c55a34f28
> [11/21] KVM: x86/xen: re-initialize shared_info if guest (32/64-bit) mode is set
>          https://github.com/kvm-x86/linux/commit/21b99e4d6db6
> [12/21] KVM: x86/xen: allow shared_info to be mapped by fixed HVA
>          https://github.com/kvm-x86/linux/commit/10dcbfc46724
> [13/21] KVM: x86/xen: allow vcpu_info to be mapped by fixed HVA
>          https://github.com/kvm-x86/linux/commit/16877dd45f98
> [14/21] KVM: selftests: map Xen's shared_info page using HVA rather than GFN
>          https://github.com/kvm-x86/linux/commit/95c27ed8619b
> [15/21] KVM: selftests: re-map Xen's vcpu_info using HVA rather than GPA
>          https://github.com/kvm-x86/linux/commit/5359bf19a3f0
> [16/21] KVM: x86/xen: advertize the KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA capability
>          https://github.com/kvm-x86/linux/commit/49668ce7e1ae
> [17/21] KVM: x86/xen: split up kvm_xen_set_evtchn_fast()
>          (not applied)
> [18/21] KVM: x86/xen: don't block on pfncache locks in kvm_xen_set_evtchn_fast()
>          (not applied)
> [19/21] KVM: pfncache: check the need for invalidation under read lock first
>          https://github.com/kvm-x86/linux/commit/21dadfcd665e
> [20/21] KVM: x86/xen: allow vcpu_info content to be 'safely' copied
>          https://github.com/kvm-x86/linux/commit/dadeabc3b6fa
> [21/21] KVM: pfncache: rework __kvm_gpc_refresh() to fix locking issues
>          (not applied)
> 
> --
> https://github.com/kvm-x86/linux/tree/next


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