KVM: nVMX: Initialize #VE info page for vmcs02 when proving #VE support

Point vmcs02.VE_INFORMATION_ADDRESS at the vCPU's #VE info page when initializing vmcs02, otherwise KVM will run L2 with EPT Violation #VE enabled and a VE info address pointing at pfn 0. Fixes: 8131cf5 ("KVM: VMX: Introduce test mode related to EPT violation VE") Signed-off-by: Sean Christopherson <[email protected]> Message-ID: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
torvalds · May 23, 2024 · d1b32ec · d1b32ec
1 parent 40e8a69
commit d1b32ec
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
@@ -2242,6 +2242,9 @@ static void prepare_vmcs02_constant_state(struct vcpu_vmx *vmx)
  vmcs_write64(EPT_POINTER,
  construct_eptp(&vmx->vcpu, 0, PT64_ROOT_4LEVEL));
 
+ if (vmx->ve_info)
+ vmcs_write64(VE_INFORMATION_ADDRESS, __pa(vmx->ve_info));
+
  /* All VMFUNCs are currently emulated through L0 vmexits. */
  if (cpu_has_vmx_vmfunc())
  vmcs_write64(VM_FUNCTION_CONTROL, 0);