diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-03 02:57:02 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 19:58:39 +0300 |
| commit | bde7723559586d6afd18fa1717fc143531d4c77d (patch) | |
| tree | 68d7ac5307ae59b65f8ffabf43dfa9a610c3f540 /arch | |
| parent | 213e0e1f500b5f035d4c8441025a74478818a64f (diff) | |
| download | linux-bde7723559586d6afd18fa1717fc143531d4c77d.tar.xz | |
KVM: x86/mmu: Merge kvm_{enable,disable}_tdp() into a common function
Combine kvm_enable_tdp() and kvm_disable_tdp() into a single function,
kvm_configure_mmu(), in preparation for doing additional configuration
during hardware setup. And because having separate helpers is silly.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 3 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 13 | ||||
| -rw-r--r-- | arch/x86/kvm/svm.c | 5 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 4 |
4 files changed, 6 insertions, 19 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 143d0ce493d5..c9b721140f59 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1510,8 +1510,7 @@ void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva); void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid); void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3, bool skip_tlb_flush); -void kvm_enable_tdp(void); -void kvm_disable_tdp(void); +void kvm_configure_mmu(bool enable_tdp); static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access, struct x86_exception *exception) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 050da022f96c..724bc8051117 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -5559,18 +5559,11 @@ void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid) } EXPORT_SYMBOL_GPL(kvm_mmu_invpcid_gva); -void kvm_enable_tdp(void) +void kvm_configure_mmu(bool enable_tdp) { - tdp_enabled = true; + tdp_enabled = enable_tdp; } -EXPORT_SYMBOL_GPL(kvm_enable_tdp); - -void kvm_disable_tdp(void) -{ - tdp_enabled = false; -} -EXPORT_SYMBOL_GPL(kvm_disable_tdp); - +EXPORT_SYMBOL_GPL(kvm_configure_mmu); /* The return value indicates if tlb flush on all vcpus is needed. */ typedef bool (*slot_level_handler) (struct kvm *kvm, struct kvm_rmap_head *rmap_head); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 6b7b0f8caa52..422ee02afe8c 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1458,10 +1458,7 @@ static __init int svm_hardware_setup(void) if (npt_enabled && !npt) npt_enabled = false; - if (npt_enabled) - kvm_enable_tdp(); - else - kvm_disable_tdp(); + kvm_configure_mmu(npt_enabled); pr_info("kvm: Nested Paging %sabled\n", npt_enabled ? "en" : "dis"); if (nrips) { diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 75f61fb9c3b2..b4ae305646fe 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5320,7 +5320,6 @@ static void vmx_enable_tdp(void) VMX_EPT_RWX_MASK, 0ull); ept_set_mmio_spte_mask(); - kvm_enable_tdp(); } /* @@ -7747,8 +7746,7 @@ static __init int hardware_setup(void) if (enable_ept) vmx_enable_tdp(); - else - kvm_disable_tdp(); + kvm_configure_mmu(enable_ept); /* * Only enable PML when hardware supports PML feature, and both EPT |