Commit 5a46fd48 authored by Isaku Yamahata's avatar Isaku Yamahata Committed by Paolo Bonzini
Browse files

KVM: x86/mmu: Add setter for shadow_mmio_value 



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: default avatarIsaku Yamahata <isaku.yamahata@intel.com>
[split into new patch]
Co-developed-by: default avatarRick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: default avatarRick Edgecombe <rick.p.edgecombe@intel.com>
Signed-off-by: default avatarYan Zhao <yan.y.zhao@intel.com>
Reviewed-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241112073730.22200-1-yan.y.zhao@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 427a6486

arch/x86/kvm/mmu.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

arch/x86/kvm/mmu/spte.c

+6 −0
Original line number Diff line number Diff line
@@ -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 */