linux-kernel - [PATCH v1 0/2] MMIO mask fix for AMD memory encryption support

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Date:   Wed, 18 Dec 2019 13:45:45 -0600
From:   Tom Lendacky <thomas.lendacky@....com>
To:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Brijesh Singh <brijesh.singh@....com>
Subject: [PATCH v1 0/2] MMIO mask fix for AMD memory encryption support

This patch series ensures that a valid MMIO SPTE mask can be generated
under SVM when memory encryption is enabled.

The patchset includes:
- Add an optional callback to return a reserved bit(s) mask
- Implement the callback in SVM

---

Patches based on https://git.kernel.org/pub/scm/virt/kvm/kvm.git next
commit:
  7d73710d9ca2 ("kvm: vmx: Stop wasting a page for guest_msrs")

Tom Lendacky (2):
  KVM: x86/mmu: Allow for overriding MMIO SPTE mask
  KVM: SVM: Implement reserved bit callback to set MMIO SPTE mask

 arch/x86/include/asm/kvm_host.h |  4 ++-
 arch/x86/kvm/mmu/mmu.c          | 54 +++++++++++++++++++++------------
 arch/x86/kvm/svm.c              | 42 +++++++++++++++++++++++++
 arch/x86/kvm/x86.c              |  2 +-
 4 files changed, 80 insertions(+), 22 deletions(-)

-- 
2.17.1