linux-kernel - Re: [PATCH v13 00/21] KVM: xen: update shared_info and vcpu

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Date: Tue, 20 Feb 2024 07:55:13 -0800
From: Sean Christopherson <seanjc@...gle.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, 
	Paul Durrant <paul@....org>
Subject: Re: [PATCH v13 00/21] KVM: xen: update shared_info and vcpu_info handling

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).

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.

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