Re: [PATCH v13 00/21] KVM: xen: update shared_info and vcpu_info handling

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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@xxxxxxxxxx>

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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