diff options
| author | Sean Christopherson <seanjc@google.com> | 2024-01-23 02:53:15 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-19 19:15:20 +0300 |
| commit | 949019b98289b801edce7e92e022a0e95fc4cc3b (patch) | |
| tree | 0b5e499bc5c5fbd05cb4cd585e6fcf719f1b389d /arch/x86/include | |
| parent | 7fa5e2929198fe728fb6ad9cbc9e395185867743 (diff) | |
| download | linux-949019b98289b801edce7e92e022a0e95fc4cc3b.tar.xz | |
KVM: x86/mmu: Track shadow MMIO value on a per-VM basis
TDX will use a different shadow PTE entry value for MMIO from VMX. Add a
member to kvm_arch and track value for MMIO per-VM instead of a global
variable. By using the per-VM EPT entry value for MMIO, the existing VMX
logic is kept working. Introduce a separate setter function so that guest
TD can use a different value later.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-Id: <229a18434e5d83f45b1fcd7bf1544d79db1becb6.1705965635.git.isaku.yamahata@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 01c69840647e..9f92bdb78504 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1313,6 +1313,8 @@ struct kvm_arch { */ spinlock_t mmu_unsync_pages_lock; + u64 shadow_mmio_value; + struct iommu_domain *iommu_domain; bool iommu_noncoherent; #define __KVM_HAVE_ARCH_NONCOHERENT_DMA |