From f315f2b140156f456a091393fd0392acf9e6fb31 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Wed, 23 Sep 2020 13:13:45 -0700 Subject: KVM: VMX: Add a helper to test for a valid error code given an intr info Add a helper, is_exception_with_error_code(), to provide the simple but difficult to read code of checking for a valid exception with an error code given a vmcs.VM_EXIT_INTR_INFO value. The helper will gain another user, vmx_get_exit_info(), in a future patch. Signed-off-by: Sean Christopherson Message-Id: <20200923201349.16097-4-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx/vmcs.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/x86/kvm/vmx/vmcs.h') diff --git a/arch/x86/kvm/vmx/vmcs.h b/arch/x86/kvm/vmx/vmcs.h index 7a3675fddec2..1472c6c376f7 100644 --- a/arch/x86/kvm/vmx/vmcs.h +++ b/arch/x86/kvm/vmx/vmcs.h @@ -138,6 +138,13 @@ static inline bool is_external_intr(u32 intr_info) return is_intr_type(intr_info, INTR_TYPE_EXT_INTR); } +static inline bool is_exception_with_error_code(u32 intr_info) +{ + const u32 mask = INTR_INFO_VALID_MASK | INTR_INFO_DELIVER_CODE_MASK; + + return (intr_info & mask) == mask; +} + enum vmcs_field_width { VMCS_FIELD_WIDTH_U16 = 0, VMCS_FIELD_WIDTH_U64 = 1, -- cgit v1.2.3