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KVM: x86: Move misc "VALID MASK" defines from kvm_host.h => x86.c

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Move a variety of "VALID MASK" defines, e.g. that capture which flags in
a given ioctl are supported by KVM, from kvm_host.h to x86.c.  The set of
valid flags/bits is very much a KVM-internal detail, as the values from the
hardcoded #defines are often captured and massaged by KVM's setup code, i.e.
*directly* using the macros outside of KVM x86 would be actively dangerous.

No functional change intended.

Reviewed-by: Yosry Ahmed <yosry@kernel.org>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Message-ID: <20260613000329.732085-23-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2026-06-12 17:03:21 -07:00 committed by Paolo Bonzini
parent 781ee15bd9
commit 462474588b
2 changed files with 33 additions and 34 deletions
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34
arch/x86/include/asm/kvm_host.h
View File

@ -78,12 +78,6 @@
#define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \
KVM_DIRTY_LOG_INITIALLY_SET)
#define KVM_BUS_LOCK_DETECTION_VALID_MODE (KVM_BUS_LOCK_DETECTION_OFF | \
KVM_BUS_LOCK_DETECTION_EXIT)
#define KVM_X86_NOTIFY_VMEXIT_VALID_BITS (KVM_X86_NOTIFY_VMEXIT_ENABLED | \
KVM_X86_NOTIFY_VMEXIT_USER)
/* x86-specific vcpu->requests bit members */
#define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
#define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
@ -2406,34 +2400,6 @@ static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
int memslot_rmap_alloc(struct kvm_memory_slot *slot, unsigned long npages);
#define KVM_CLOCK_VALID_FLAGS \
(KVM_CLOCK_TSC_STABLE | KVM_CLOCK_REALTIME | KVM_CLOCK_HOST_TSC)
#define KVM_X86_VALID_QUIRKS \
(KVM_X86_QUIRK_LINT0_REENABLED | \
KVM_X86_QUIRK_CD_NW_CLEARED | \
KVM_X86_QUIRK_LAPIC_MMIO_HOLE | \
KVM_X86_QUIRK_OUT_7E_INC_RIP | \
KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT | \
KVM_X86_QUIRK_FIX_HYPERCALL_INSN | \
KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS | \
KVM_X86_QUIRK_SLOT_ZAP_ALL | \
KVM_X86_QUIRK_STUFF_FEATURE_MSRS | \
KVM_X86_QUIRK_IGNORE_GUEST_PAT | \
KVM_X86_QUIRK_VMCS12_ALLOW_FREEZE_IN_SMM | \
KVM_X86_QUIRK_NESTED_SVM_SHARED_PAT)
#define KVM_X86_CONDITIONAL_QUIRKS \
(KVM_X86_QUIRK_CD_NW_CLEARED | \
KVM_X86_QUIRK_IGNORE_GUEST_PAT)
/*
* KVM previously used a u32 field in kvm_run to indicate the hypercall was
* initiated from long mode. KVM now sets bit 0 to indicate long mode, but the
* remaining 31 lower bits must be 0 to preserve ABI.
*/
#define KVM_EXIT_HYPERCALL_MBZ GENMASK_ULL(31, 1)
static inline bool kvm_arch_has_irq_bypass(void)
{
return enable_device_posted_irqs;

33
arch/x86/kvm/x86.c
View File

@ -105,6 +105,12 @@ EXPORT_SYMBOL_FOR_KVM_INTERNAL(kvm_host);
#define emul_to_vcpu(ctxt) \
((struct kvm_vcpu *)(ctxt)->vcpu)
/*
* KVM previously used a u32 field in kvm_run to indicate the hypercall was
* initiated from long mode. KVM now sets bit 0 to indicate long mode, but the
* remaining 31 lower bits must be 0 to preserve ABI.
*/
#define KVM_EXIT_HYPERCALL_MBZ GENMASK_ULL(31, 1)
#define KVM_EXIT_HYPERCALL_VALID_MASK (1 << KVM_HC_MAP_GPA_RANGE)
#define KVM_CAP_PMU_VALID_MASK KVM_PMU_CAP_DISABLE
@ -114,6 +120,33 @@ EXPORT_SYMBOL_FOR_KVM_INTERNAL(kvm_host);
KVM_X2APIC_ENABLE_SUPPRESS_EOI_BROADCAST | \
KVM_X2APIC_DISABLE_SUPPRESS_EOI_BROADCAST)
#define KVM_CLOCK_VALID_FLAGS \
(KVM_CLOCK_TSC_STABLE | KVM_CLOCK_REALTIME | KVM_CLOCK_HOST_TSC)
#define KVM_X86_VALID_QUIRKS \
(KVM_X86_QUIRK_LINT0_REENABLED | \
KVM_X86_QUIRK_CD_NW_CLEARED | \
KVM_X86_QUIRK_LAPIC_MMIO_HOLE | \
KVM_X86_QUIRK_OUT_7E_INC_RIP | \
KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT | \
KVM_X86_QUIRK_FIX_HYPERCALL_INSN | \
KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS | \
KVM_X86_QUIRK_SLOT_ZAP_ALL | \
KVM_X86_QUIRK_STUFF_FEATURE_MSRS | \
KVM_X86_QUIRK_IGNORE_GUEST_PAT | \
KVM_X86_QUIRK_VMCS12_ALLOW_FREEZE_IN_SMM | \
KVM_X86_QUIRK_NESTED_SVM_SHARED_PAT)
#define KVM_X86_CONDITIONAL_QUIRKS \
(KVM_X86_QUIRK_CD_NW_CLEARED | \
KVM_X86_QUIRK_IGNORE_GUEST_PAT)
#define KVM_BUS_LOCK_DETECTION_VALID_MODE (KVM_BUS_LOCK_DETECTION_OFF | \
KVM_BUS_LOCK_DETECTION_EXIT)
#define KVM_X86_NOTIFY_VMEXIT_VALID_BITS (KVM_X86_NOTIFY_VMEXIT_ENABLED | \
KVM_X86_NOTIFY_VMEXIT_USER)
static void process_nmi(struct kvm_vcpu *vcpu);
static void store_regs(struct kvm_vcpu *vcpu);
static int sync_regs(struct kvm_vcpu *vcpu);