From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 28 Jul 2025 15:41:06 +0000 (-0400)
Subject: Merge tag 'kvm-x86-sev-6.17' of https://github.com/kvm-x86/linux into HEAD
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=beafd7ecf2255e8b62a42dc04f54843033db3d24;p=thirdparty%2Fkernel%2Flinux.git

Merge tag 'kvm-x86-sev-6.17' of https://github.com/kvm-x86/linux into HEAD

KVM SEV cache maintenance changes for 6.17

 - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM.

 - Use WBNOINVD instead of WBINVD when possible, for SEV cache maintenance,
   e.g. to minimize collateral damage when reclaiming memory from an SEV guest.

 - When reclaiming memory from an SEV guest, only do cache flushes on CPUs that
   have ever run a vCPU for the guest, i.e. don't flush the caches for CPUs
   that can't possibly have cache lines with dirty, encrypted data.
---

beafd7ecf2255e8b62a42dc04f54843033db3d24