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Message-ID: <f85098ba-b56e-455a-9b73-909d71cf0b51@xen.org>
Date: Tue, 20 Feb 2024 09:14:23 +0000
From: Paul Durrant <xadimgnik@...il.com>
To: Sean Christopherson <seanjc@...gle.com>
Cc: 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 19/02/2024 22:06, Sean Christopherson wrote:
> On Thu, Feb 15, 2024, Paul Durrant wrote:
>> David Woodhouse (1):
>> KVM: pfncache: rework __kvm_gpc_refresh() to fix locking issues
>>
>> Paul Durrant (19):
>> KVM: pfncache: Add a map helper function
>> KVM: pfncache: remove unnecessary exports
>> KVM: x86/xen: mark guest pages dirty with the pfncache lock held
>> KVM: pfncache: add a mark-dirty helper
>> KVM: pfncache: remove KVM_GUEST_USES_PFN usage
>> KVM: pfncache: stop open-coding offset_in_page()
>> KVM: pfncache: include page offset in uhva and use it consistently
>> KVM: pfncache: allow a cache to be activated with a fixed (userspace)
>> HVA
>> KVM: x86/xen: separate initialization of shared_info cache and content
>> KVM: x86/xen: re-initialize shared_info if guest (32/64-bit) mode is
>> set
>> KVM: x86/xen: allow shared_info to be mapped by fixed HVA
>> KVM: x86/xen: allow vcpu_info to be mapped by fixed HVA
>> KVM: selftests: map Xen's shared_info page using HVA rather than GFN
>> KVM: selftests: re-map Xen's vcpu_info using HVA rather than GPA
>> KVM: x86/xen: advertize the KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA
>> capability
>> KVM: x86/xen: split up kvm_xen_set_evtchn_fast()
>> KVM: x86/xen: don't block on pfncache locks in
>> kvm_xen_set_evtchn_fast()
>> KVM: pfncache: check the need for invalidation under read lock first
>> KVM: x86/xen: allow vcpu_info content to be 'safely' copied
>>
>> Sean Christopherson (1):
>> KVM: s390: Refactor kvm_is_error_gpa() into kvm_is_gpa_in_memslot()
>>
>> Documentation/virt/kvm/api.rst | 53 ++-
>> arch/s390/kvm/diag.c | 2 +-
>> arch/s390/kvm/gaccess.c | 14 +-
>> arch/s390/kvm/kvm-s390.c | 4 +-
>> arch/s390/kvm/priv.c | 4 +-
>> arch/s390/kvm/sigp.c | 2 +-
>> arch/x86/kvm/x86.c | 7 +-
>> arch/x86/kvm/xen.c | 361 +++++++++++------
>> include/linux/kvm_host.h | 49 ++-
>> include/linux/kvm_types.h | 8 -
>> include/uapi/linux/kvm.h | 9 +-
>> .../selftests/kvm/x86_64/xen_shinfo_test.c | 59 ++-
>> virt/kvm/pfncache.c | 382 ++++++++++--------
>> 13 files changed, 591 insertions(+), 363 deletions(-)
>
> Except for the read_trylock() patch, just a few nits that I can fixup when
> applying, though I'll defeinitely want your eyeballs on the end result as they
> tweaks aren't _that_ trivial.
>
> Running tests now, if all goes well I'll push to kvm-x86 within the hour.
Oh, I read this last and you already made the changes :-) I'll check
kvm-x86. Thanks.
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