Commit 88c200d9 authored by Sean Christopherson's avatar Sean Christopherson Committed by Paolo Bonzini
Browse files

KVM: VMX: Add helpers to identify interrupt type from intr_info 



Add is_intr_type() and is_intr_type_n() to consolidate the boilerplate
code for querying a specific type of interrupt given an encoded value
from VMCS.VM_{ENTER,EXIT}_INTR_INFO, with and without an associated
vector respectively.

Signed-off-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200609014518.26756-1-sean.j.christopherson@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent b95273f1

arch/x86/kvm/vmx/vmcs.h

+20 −12
Original line number Diff line number Diff line
@@ -72,11 +72,24 @@ struct loaded_vmcs { 
	struct vmcs_controls_shadow controls_shadow;

};



static inline bool is_intr_type(u32 intr_info, u32 type)

{

	const u32 mask = INTR_INFO_VALID_MASK | INTR_INFO_INTR_TYPE_MASK;



	return (intr_info & mask) == (INTR_INFO_VALID_MASK | type);

}



static inline bool is_intr_type_n(u32 intr_info, u32 type, u8 vector)

{

	const u32 mask = INTR_INFO_VALID_MASK | INTR_INFO_INTR_TYPE_MASK |

			 INTR_INFO_VECTOR_MASK;



	return (intr_info & mask) == (INTR_INFO_VALID_MASK | type | vector);

}



static inline bool is_exception_n(u32 intr_info, u8 vector)

{

	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |

			     INTR_INFO_VALID_MASK)) ==

		(INTR_TYPE_HARD_EXCEPTION | vector | INTR_INFO_VALID_MASK);

	return is_intr_type_n(intr_info, INTR_TYPE_HARD_EXCEPTION, vector);

}



static inline bool is_debug(u32 intr_info)
@@ -106,28 +119,23 @@ static inline bool is_gp_fault(u32 intr_info) 


static inline bool is_machine_check(u32 intr_info)

{

	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VECTOR_MASK |

			     INTR_INFO_VALID_MASK)) ==

		(INTR_TYPE_HARD_EXCEPTION | MC_VECTOR | INTR_INFO_VALID_MASK);

	return is_exception_n(intr_info, MC_VECTOR);

}



/* Undocumented: icebp/int1 */

static inline bool is_icebp(u32 intr_info)

{

	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))

		== (INTR_TYPE_PRIV_SW_EXCEPTION | INTR_INFO_VALID_MASK);

	return is_intr_type(intr_info, INTR_TYPE_PRIV_SW_EXCEPTION);

}



static inline bool is_nmi(u32 intr_info)

{

	return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK))

		== (INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK);

	return is_intr_type(intr_info, INTR_TYPE_NMI_INTR);

}



static inline bool is_external_intr(u32 intr_info)

{

	return (intr_info & (INTR_INFO_VALID_MASK | INTR_INFO_INTR_TYPE_MASK))

		== (INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR);

	return is_intr_type(intr_info, INTR_TYPE_EXT_INTR);

}



enum vmcs_field_width {

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