diff options
| author | Christoffer Dall <[email protected]> | 2024-06-14 15:45:38 +0100 |
|---|---|---|
| committer | Oliver Upton <[email protected]> | 2024-06-19 08:13:49 +0000 |
| commit | 61e30b9eef7ffc7f88ffd95e969cfb662e41bb05 (patch) | |
| tree | e42447db945f94a2ad77e1b6cdf04513feced2ba /arch/arm64/include/asm/kvm_nested.h | |
| parent | 4f128f8e1aaac189f83d0f828bcdb2986d8d2e51 (diff) | |
KVM: arm64: nv: Implement nested Stage-2 page table walk logic
Based on the pseudo-code in the ARM ARM, implement a stage 2 software
page table walker.
Co-developed-by: Jintack Lim <[email protected]>
Signed-off-by: Jintack Lim <[email protected]>
Signed-off-by: Christoffer Dall <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
Diffstat (limited to 'arch/arm64/include/asm/kvm_nested.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_nested.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h index a69faee31342..5404b7b843cf 100644 --- a/arch/arm64/include/asm/kvm_nested.h +++ b/arch/arm64/include/asm/kvm_nested.h @@ -68,6 +68,19 @@ extern struct kvm_s2_mmu *lookup_s2_mmu(struct kvm_vcpu *vcpu); extern void kvm_vcpu_load_hw_mmu(struct kvm_vcpu *vcpu); extern void kvm_vcpu_put_hw_mmu(struct kvm_vcpu *vcpu); +struct kvm_s2_trans { + phys_addr_t output; + unsigned long block_size; + bool writable; + bool readable; + int level; + u32 esr; + u64 upper_attr; +}; + +extern int kvm_walk_nested_s2(struct kvm_vcpu *vcpu, phys_addr_t gipa, + struct kvm_s2_trans *result); + int kvm_init_nv_sysregs(struct kvm *kvm); #ifdef CONFIG_ARM64_PTR_AUTH |