diff options
| author | Wei Huang <wei.huang2@amd.com> | 2021-08-18 19:55:47 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-08-20 23:06:44 +0300 |
| commit | 746700d21fd52399c97aeb7791584bbf5426983c (patch) | |
| tree | 98eb6e95fd56c2dde9aba6d08efdbc3d7de365f4 /arch/x86/include | |
| parent | ec607a564f70519b340f7eb4cfc0f4a6b55285ac (diff) | |
| download | linux-746700d21fd52399c97aeb7791584bbf5426983c.tar.xz | |
KVM: x86: Allow CPU to force vendor-specific TDP level
AMD future CPUs will require a 5-level NPT if host CR4.LA57 is set.
To prevent kvm_mmu_get_tdp_level() from incorrectly changing NPT level
on behalf of CPUs, add a new parameter in kvm_configure_mmu() to force
a fixed TDP level.
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Message-Id: <20210818165549.3771014-2-wei.huang2@amd.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 | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 7723865077fd..24dac52b7bde 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -717,7 +717,6 @@ struct kvm_vcpu_arch { u64 reserved_gpa_bits; int maxphyaddr; - int max_tdp_level; /* emulate context */ @@ -1766,8 +1765,8 @@ void kvm_mmu_invalidate_gva(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid); void kvm_mmu_new_pgd(struct kvm_vcpu *vcpu, gpa_t new_pgd); -void kvm_configure_mmu(bool enable_tdp, int tdp_max_root_level, - int tdp_huge_page_level); +void kvm_configure_mmu(bool enable_tdp, int tdp_forced_root_level, + int tdp_max_root_level, int tdp_huge_page_level); static inline u16 kvm_read_ldt(void) { |