Re: [PATCH v2 0/8] KVM: x86/xen updates

From: Sean Christopherson <seanjc@google.com>
To: David Woodhouse <dwmw2@infradead.org>
Cc: kvm@vger.kernel.org, Paul Durrant <paul@xen.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	 Michal Luczaj <mhal@rbox.co>
Subject: Re: [PATCH v2 0/8] KVM: x86/xen updates
Date: Thu, 29 Feb 2024 15:12:49 -0800	[thread overview]
Message-ID: <ZeEPcYL0pc0zJQKZ@google.com> (raw)
In-Reply-To: <20240227115648.3104-1-dwmw2@infradead.org>

On Tue, Feb 27, 2024, David Woodhouse wrote:
> David Woodhouse (6):
>       KVM: x86/xen: improve accuracy of Xen timers
>       KVM: x86/xen: inject vCPU upcall vector when local APIC is enabled
>       KVM: x86/xen: remove WARN_ON_ONCE() with false positives in evtchn delivery
>       KVM: pfncache: simplify locking and make more self-contained
>       KVM: x86/xen: fix recursive deadlock in timer injection
>       KVM: pfncache: clean up rwlock abuse
> 
> Paul Durrant (2):
>       KVM: x86/xen: split up kvm_xen_set_evtchn_fast()
>       KVM: x86/xen: avoid blocking in hardirq context in kvm_xen_set_evtchn_fast()
> 
>  arch/x86/kvm/lapic.c |   5 +-
>  arch/x86/kvm/x86.c   |  61 +++++++++-
>  arch/x86/kvm/x86.h   |   1 +
>  arch/x86/kvm/xen.c   | 327 +++++++++++++++++++++++++++++++++------------------
>  arch/x86/kvm/xen.h   |  18 +++
>  virt/kvm/pfncache.c  | 216 +++++++++++++++++-----------------
>  6 files changed, 403 insertions(+), 225 deletions(-)

FYI, I'm planning on grabbing at least the first 3 for 6.9, but I'm off tomorrow
and don't want to risk having to fix breakage in -next, so it won't happen until
next week.

I might also grab 4 and 5, I just need to stare at that locking code a bit.