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From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	 Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Yosry Ahmed <yosry@kernel.org>, Kai Huang <kai.huang@intel.com>
Subject: [PATCH v4 22/30] KVM: x86: Move misc "VALID MASK" defines from kvm_host.h => x86.c
Date: Fri, 12 Jun 2026 17:03:21 -0700	[thread overview]
Message-ID: <20260613000329.732085-23-seanjc@google.com> (raw)
In-Reply-To: <20260613000329.732085-1-seanjc@google.com>

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>
---
 arch/x86/include/asm/kvm_host.h | 34 ---------------------------------
 arch/x86/kvm/x86.c              | 33 ++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 34 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index d1fdb2c3fdfa..72f8f8933ab7 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -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)
@@ -2417,34 +2411,6 @@ static inline int kvm_cpu_get_apicid(int mps_cpu)
 
 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;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c6cc0961a4e7..e0456133133b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -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);
-- 
2.54.0.1136.gdb2ca164c4-goog


  parent reply	other threads:[~2026-06-13  0:04 UTC|newest]

Thread overview: 92+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-13  0:02 [PATCH v4 00/30] KVM: x86: x86.{c,h} spring cleaning Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 01/30] KVM: x86: Extract REGS and SREGS runtime sync code to helpers Sean Christopherson
2026-06-15  2:16   ` Huang, Kai
2026-06-15  5:02   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 02/30] KVM: x86: Move get_segment_base() to regs.h, as kvm_get_segment_base() Sean Christopherson
2026-06-15  2:43   ` Huang, Kai
2026-06-15  5:03   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 03/30] KVM: x86: Rename __{g,s}et_sregs2() => kvm_x86_vcpu_ioctl_{g,s}et_sregs2() Sean Christopherson
2026-06-15  2:46   ` Huang, Kai
2026-06-15  5:13   ` Binbin Wu
2026-06-15 15:58     ` Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 04/30] KVM: x86: Move the bulk of register specific code from x86.c to regs.c Sean Christopherson
2026-06-15  5:25   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 05/30] KVM: x86: Move local APIC specific helpers out of asm/kvm_host.h Sean Christopherson
2026-06-15  5:47   ` Binbin Wu
2026-06-15 16:06     ` Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 06/30] KVM: x86: Move kvm_caps and kvm_host_values to asm/kvm_host.h Sean Christopherson
2026-06-13  9:01   ` Xiaoyao Li
2026-06-15  6:49     ` Binbin Wu
2026-06-15 16:24       ` Sean Christopherson
2026-06-16  8:18         ` Xiaoyao Li
2026-06-13  0:03 ` [PATCH v4 07/30] KVM: x86: Swap the include order between x86.h and mmu.h Sean Christopherson
2026-06-15  7:26   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 08/30] KVM: x86: Move tdp_enabled from kvm_host.h to mmu.h Sean Christopherson
2026-06-15  7:33   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 09/30] KVM: x86: Move eager_page_split to mmu.{c,h} Sean Christopherson
2026-06-15  7:49   ` Binbin Wu
2026-06-16 17:19     ` Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 10/30] KVM: x86/hyperv: Eliminate an unnecessary include of x86.h in hyperv.h Sean Christopherson
2026-06-15  7:52   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 11/30] KVM: x86: Move kvm_{load,put}_guest_fpu() to fpu.h Sean Christopherson
2026-06-15  8:13   ` Binbin Wu
2026-06-15 16:31     ` Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 12/30] KVM: x86: Extract get/set MSR (list) ioctl logic to helpers Sean Christopherson
2026-06-15  8:30   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 13/30] KVM: x86: Expose several TSC helpers via x86.h for use by MSR code Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 14/30] KVM: x86: Move the bulk of MSR specific code from x86.c to msrs.{c,h} Sean Christopherson
2026-06-15  9:30   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 15/30] KVM: x86: Move register helper declarations from kvm_host.h => regs.h Sean Christopherson
2026-06-16  2:15   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 16/30] KVM: x86: Move kvm_{g,s}et_segment() to inline helpers in regs.h Sean Christopherson
2026-06-16  2:19   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 17/30] KVM: x86: Move MSR helper declarations from kvm_host.h => msrs.h Sean Christopherson
2026-06-16  2:25   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 18/30] KVM: x86: Move "struct kvm_x86_msr_filter" definition to msrs.c Sean Christopherson
2026-06-15  2:47   ` Huang, Kai
2026-06-16  3:12   ` Binbin Wu
2026-06-16  6:29   ` Binbin Wu
2026-06-16  7:29     ` Huang, Kai
2026-06-16  7:43       ` Binbin Wu
2026-06-16  7:46         ` Huang, Kai
2026-06-16 16:19           ` Sean Christopherson
2026-06-16 23:30             ` Huang, Kai
2026-06-16 23:45               ` Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 19/30] KVM: x86/pmu: Move "struct kvm_x86_pmu_event_filter" definition to pmu.c Sean Christopherson
2026-06-15  2:48   ` Huang, Kai
2026-06-16  3:18   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 20/30] KVM: x86: Move MMU helper declarations from kvm_host.h => mmu.h Sean Christopherson
2026-06-16  5:04   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 21/30] KVM: x86: Move LLDT assembly wrappers into VMX Sean Christopherson
2026-06-16  6:40   ` Binbin Wu
2026-06-13  0:03 ` Sean Christopherson [this message]
2026-06-16  6:46   ` [PATCH v4 22/30] KVM: x86: Move misc "VALID MASK" defines from kvm_host.h => x86.c Binbin Wu
2026-06-13  0:03 ` [PATCH v4 23/30] KVM: x86: Move __kvm_irq_line_state() from kvm_host.h => ioapic.h Sean Christopherson
2026-06-16  6:50   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 24/30] KVM: x86: Move IRQ-related helper declarations from kvm_host.h => irq.h Sean Christopherson
2026-06-15 11:55   ` Huang, Kai
2026-06-16  6:55   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 25/30] KVM: x86: Move kvm_pv_send_ipi() declaration from kvm_host.h => lapic.h Sean Christopherson
2026-06-16  6:58   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 26/30] KVM: x86: Don't treat interrupts as allowed just because a nested run is pending Sean Christopherson
2026-06-15 16:40   ` Yosry Ahmed
2026-06-15 16:43     ` Yosry Ahmed
2026-06-15 17:03       ` Sean Christopherson
2026-06-15 19:37         ` Yosry Ahmed
2026-06-15 17:26     ` Sean Christopherson
2026-06-15 19:48       ` Yosry Ahmed
2026-06-16 17:46         ` Sean Christopherson
2026-06-16 18:08           ` Yosry Ahmed
2026-06-13  0:03 ` [PATCH v4 27/30] KVM: x86: Rework kvm_arch_interrupt_allowed() into kvm_is_interrupt_allowed() Sean Christopherson
2026-06-13  0:03 ` [PATCH v4 28/30] KVM: x86/mmu: Move kvm_arch_async_page_ready() below kvm_tdp_page_fault() Sean Christopherson
2026-06-16  8:40   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 29/30] KVM: x86/mmu: Move kvm_mmu_do_page_fault() from mmu_internal.h => mmu.c Sean Christopherson
2026-06-16  8:48   ` Binbin Wu
2026-06-13  0:03 ` [PATCH v4 30/30] KVM: x86: Move a pile of stuff from kvm_host.h => x86.h Sean Christopherson
2026-06-15 13:01   ` Huang, Kai
2026-06-15 14:23     ` Sean Christopherson
2026-06-24 12:30 ` [PATCH v4 00/30] KVM: x86: x86.{c,h} spring cleaning Paolo Bonzini
2026-06-24 12:55   ` Sean Christopherson
2026-06-24 13:00     ` Paolo Bonzini
2026-06-24 13:02       ` Sean Christopherson
2026-06-24 14:37         ` Sean Christopherson

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