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KVM: x86/mmu: Add setter for shadow_mmio_value

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Future changes will want to set shadow_mmio_value from TDX code. Add a
helper to setter with a name that makes more sense from that context.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
[split into new patch]
Co-developed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241112073730.22200-1-yan.y.zhao@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Isaku Yamahata 2024-11-12 15:37:30 +08:00 committed by Paolo Bonzini
parent 427a6486c5
commit 5a46fd48d8
2 changed files with 7 additions and 0 deletions
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1
arch/x86/kvm/mmu.h
View File

@ -79,6 +79,7 @@ static inline gfn_t kvm_mmu_max_gfn(void)
u8 kvm_mmu_get_max_tdp_level(void);
void kvm_mmu_set_mmio_spte_mask(u64 mmio_value, u64 mmio_mask, u64 access_mask);
void kvm_mmu_set_mmio_spte_value(struct kvm *kvm, u64 mmio_value);
void kvm_mmu_set_me_spte_mask(u64 me_value, u64 me_mask);
void kvm_mmu_set_ept_masks(bool has_ad_bits, bool has_exec_only);

6
arch/x86/kvm/mmu/spte.c
View File

@ -433,6 +433,12 @@ void kvm_mmu_set_mmio_spte_mask(u64 mmio_value, u64 mmio_mask, u64 access_mask)
}
EXPORT_SYMBOL_GPL(kvm_mmu_set_mmio_spte_mask);
void kvm_mmu_set_mmio_spte_value(struct kvm *kvm, u64 mmio_value)
{
kvm->arch.shadow_mmio_value = mmio_value;
}
EXPORT_SYMBOL_GPL(kvm_mmu_set_mmio_spte_value);
void kvm_mmu_set_me_spte_mask(u64 me_value, u64 me_mask)
{
/* shadow_me_value must be a subset of shadow_me_mask */