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

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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: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200609014518.26756-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2020-06-08 18:45:18 -07:00 committed by Paolo Bonzini
parent b95273f127
commit 88c200d929
1 changed files with 20 additions and 12 deletions
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32
arch/x86/kvm/vmx/vmcs.h
View File

@ -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 {