diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-04-11 12:18:09 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-16 15:39:06 +0200 |
| commit | c80add0f487e28c48e855245189dc28bd3d5c250 (patch) | |
| tree | 139d8f5b7b850c20c36672cb3949bfec909f7914 /arch/x86 | |
| parent | 98d9e858fa966bd7132cc21d65e4c89a97f4fe2d (diff) | |
| download | linux-c80add0f487e28c48e855245189dc28bd3d5c250.tar.bz2 | |
KVM: nVMX: Return -EINVAL when signaling failure in VM-Entry helpers
Most, but not all, helpers that are related to emulating consistency
checks for nested VM-Entry return -EINVAL when a check fails. Convert
the holdouts to have consistency throughout and to make it clear that
the functions are signaling pass/fail as opposed to "resume guest" vs.
"exit to userspace".
Opportunistically fix bad indentation in nested_vmx_check_guest_state().
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 56c22e5c96c3..b46136b099b8 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -930,7 +930,7 @@ static int nested_vmx_load_cr3(struct kvm_vcpu *vcpu, unsigned long cr3, bool ne if (cr3 != kvm_read_cr3(vcpu) || (!nested_ept && pdptrs_changed(vcpu))) { if (!nested_cr3_valid(vcpu, cr3)) { *entry_failure_code = ENTRY_FAIL_DEFAULT; - return 1; + return -EINVAL; } /* @@ -941,7 +941,7 @@ static int nested_vmx_load_cr3(struct kvm_vcpu *vcpu, unsigned long cr3, bool ne !nested_ept) { if (!load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3)) { *entry_failure_code = ENTRY_FAIL_PDPTE; - return 1; + return -EINVAL; } } } @@ -2373,13 +2373,13 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, */ if (vmx->emulation_required) { *entry_failure_code = ENTRY_FAIL_DEFAULT; - return 1; + return -EINVAL; } /* Shadow page tables on either EPT or shadow page tables. */ if (nested_vmx_load_cr3(vcpu, vmcs12->guest_cr3, nested_cpu_has_ept(vmcs12), entry_failure_code)) - return 1; + return -EINVAL; if (!enable_ept) vcpu->arch.walk_mmu->inject_page_fault = vmx_inject_page_fault_nested; @@ -2685,15 +2685,15 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu, if (!nested_guest_cr0_valid(vcpu, vmcs12->guest_cr0) || !nested_guest_cr4_valid(vcpu, vmcs12->guest_cr4)) - return 1; + return -EINVAL; if ((vmcs12->vm_entry_controls & VM_ENTRY_LOAD_IA32_PAT) && !kvm_pat_valid(vmcs12->guest_ia32_pat)) - return 1; + return -EINVAL; if (nested_vmx_check_vmcs_link_ptr(vcpu, vmcs12)) { *exit_qual = ENTRY_FAIL_VMCS_LINK_PTR; - return 1; + return -EINVAL; } /* @@ -2712,16 +2712,16 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu, ia32e != !!(vmcs12->guest_ia32_efer & EFER_LMA) || ((vmcs12->guest_cr0 & X86_CR0_PG) && ia32e != !!(vmcs12->guest_ia32_efer & EFER_LME))) - return 1; + return -EINVAL; } if ((vmcs12->vm_entry_controls & VM_ENTRY_LOAD_BNDCFGS) && - (is_noncanonical_address(vmcs12->guest_bndcfgs & PAGE_MASK, vcpu) || - (vmcs12->guest_bndcfgs & MSR_IA32_BNDCFGS_RSVD))) - return 1; + (is_noncanonical_address(vmcs12->guest_bndcfgs & PAGE_MASK, vcpu) || + (vmcs12->guest_bndcfgs & MSR_IA32_BNDCFGS_RSVD))) + return -EINVAL; if (nested_check_guest_non_reg_state(vmcs12)) - return 1; + return -EINVAL; return 0; } |