linux-kernel - [RFC PATCH 0/3] KVM: SVM: Fix IRQ window inhibit handling

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Message-ID: <cover.1752819570.git.naveen@kernel.org>
Date: Fri, 18 Jul 2025 12:13:33 +0530
From: "Naveen N Rao (AMD)" <naveen@...nel.org>
To: Sean Christopherson <seanjc@...gle.com>,
	Paolo Bonzini <pbonzini@...hat.com>
Cc: <kvm@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	Maxim Levitsky <mlevitsk@...hat.com>,
	Vasant Hegde <vasant.hegde@....com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>
Subject: [RFC PATCH 0/3] KVM: SVM: Fix IRQ window inhibit handling

Sean, Paolo,
I have attempted to take the changes discussed in the below thread and 
to convert them into a patch series:
http://lkml.kernel.org/r/Z6JoInXNntIoHLQ8@google.com

I have tried to describe the changes, but the nested aspects would 
definitely need a review to ensure correctness and that all aspects are 
covered there.

None of these patches include patch tags since none were provided in the 
discussion. I have proposed patch trailers on the individual patches.  
Please take a look and let me know if that's fine.

I tested this lightly with nested guests as well and it is working fine 
for me.


Thanks,
Naveen


Naveen N Rao (AMD) (3):
  KVM: SVM: Fix clearing IRQ window inhibit with nested guests
  KVM: SVM: Fix IRQ window inhibit handling across multiple vCPUs
  KVM: SVM: Optimize IRQ window inhibit handling

 arch/x86/include/asm/kvm_host.h | 16 +++++++++
 arch/x86/kvm/svm/svm.h          |  1 +
 arch/x86/kvm/svm/svm.c          | 60 ++++++++++++++++++++-------------
 arch/x86/kvm/x86.c              | 45 ++++++++++++++++++++++++-
 4 files changed, 98 insertions(+), 24 deletions(-)


base-commit: 87198fb0208a774d0cb8844744c67ee8680eafab
-- 
2.50.1