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From: Yosry Ahmed <yosry.ahmed@linux.dev>
To: Paolo Bonzini <pbonzini@redhat.com>,
	Sean Christopherson <seanjc@google.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Yosry Ahmed <yosry.ahmed@linux.dev>
Subject: [PATCH v3 22/26] KVM: SVM: Use BIT() and GENMASK() for definitions in svm.h
Date: Mon, 15 Dec 2025 19:27:17 +0000	[thread overview]
Message-ID: <20251215192722.3654335-24-yosry.ahmed@linux.dev> (raw)
In-Reply-To: <20251215192722.3654335-1-yosry.ahmed@linux.dev>

Use BIT() and GENMASK() (and *_ULL() variants) to define the bitmasks in
svm.h.

Opportunistically switch the definitions of AVIC_ENABLE_{SHIFT/MASK}
and X2APIC_MODE_{SHIFT/MASK}, as well as SVM_EVTINJ_VALID and
SVM_EVTINJ_VALID_ERR, such that the bitmasks are defined in the correct
order.

No functional change intended.

Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
---
 arch/x86/include/asm/svm.h | 78 +++++++++++++++++++-------------------
 1 file changed, 39 insertions(+), 39 deletions(-)

diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index f67cb8ffc403..3accc9d4d663 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -185,39 +185,39 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 #define V_TPR_MASK 0x0f
 
 #define V_IRQ_SHIFT 8
-#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
+#define V_IRQ_MASK BIT(V_IRQ_SHIFT)
 
 #define V_GIF_SHIFT 9
-#define V_GIF_MASK (1 << V_GIF_SHIFT)
+#define V_GIF_MASK BIT(V_GIF_SHIFT)
 
 #define V_NMI_PENDING_SHIFT 11
-#define V_NMI_PENDING_MASK (1 << V_NMI_PENDING_SHIFT)
+#define V_NMI_PENDING_MASK BIT(V_NMI_PENDING_SHIFT)
 
 #define V_NMI_BLOCKING_SHIFT 12
-#define V_NMI_BLOCKING_MASK (1 << V_NMI_BLOCKING_SHIFT)
+#define V_NMI_BLOCKING_MASK BIT(V_NMI_BLOCKING_SHIFT)
 
 #define V_INTR_PRIO_SHIFT 16
-#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
+#define V_INTR_PRIO_MASK GENMASK(V_INTR_PRIO_SHIFT + 3, V_INTR_PRIO_SHIFT)
 
 #define V_IGN_TPR_SHIFT 20
-#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
+#define V_IGN_TPR_MASK BIT(V_IGN_TPR_SHIFT)
 
 #define V_IRQ_INJECTION_BITS_MASK (V_IRQ_MASK | V_INTR_PRIO_MASK | V_IGN_TPR_MASK)
 
 #define V_INTR_MASKING_SHIFT 24
-#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
+#define V_INTR_MASKING_MASK BIT(V_INTR_MASKING_SHIFT)
 
 #define V_GIF_ENABLE_SHIFT 25
-#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
+#define V_GIF_ENABLE_MASK BIT(V_GIF_ENABLE_SHIFT)
 
 #define V_NMI_ENABLE_SHIFT 26
-#define V_NMI_ENABLE_MASK (1 << V_NMI_ENABLE_SHIFT)
-
-#define AVIC_ENABLE_SHIFT 31
-#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
+#define V_NMI_ENABLE_MASK BIT(V_NMI_ENABLE_SHIFT)
 
 #define X2APIC_MODE_SHIFT 30
-#define X2APIC_MODE_MASK (1 << X2APIC_MODE_SHIFT)
+#define X2APIC_MODE_MASK BIT(X2APIC_MODE_SHIFT)
+
+#define AVIC_ENABLE_SHIFT 31
+#define AVIC_ENABLE_MASK BIT(AVIC_ENABLE_SHIFT)
 
 #define SVM_INTERRUPT_SHADOW_MASK	BIT_ULL(0)
 #define SVM_GUEST_INTERRUPT_MASK	BIT_ULL(1)
@@ -228,10 +228,10 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 #define SVM_IOIO_ASIZE_SHIFT 7
 
 #define SVM_IOIO_TYPE_MASK 1
-#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
-#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
-#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
-#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
+#define SVM_IOIO_STR_MASK BIT(SVM_IOIO_STR_SHIFT)
+#define SVM_IOIO_REP_MASK BIT(SVM_IOIO_REP_SHIFT)
+#define SVM_IOIO_SIZE_MASK GENMASK(SVM_IOIO_SIZE_SHIFT + 2, SVM_IOIO_SIZE_SHIFT)
+#define SVM_IOIO_ASIZE_MASK GENMASK(SVM_IOIO_ASIZE_SHIFT + 2, SVM_IOIO_ASIZE_SHIFT)
 
 #define SVM_MISC_CTL_NP_ENABLE		BIT(0)
 #define SVM_MISC_CTL_SEV_ENABLE		BIT(1)
@@ -247,9 +247,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 
 
 /* AVIC */
-#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK	(0xFFULL)
+#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK	GENMASK_ULL(7, 0)
 #define AVIC_LOGICAL_ID_ENTRY_VALID_BIT			31
-#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK		(1 << 31)
+#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK		BIT(AVIC_LOGICAL_ID_ENTRY_VALID_BIT)
 
 /*
  * GA_LOG_INTR is a synthetic flag that's never propagated to hardware-visible
@@ -260,15 +260,15 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
 
 #define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK	GENMASK_ULL(11, 0)
 #define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK	GENMASK_ULL(51, 12)
-#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK		(1ULL << 62)
-#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK		(1ULL << 63)
-#define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK		(0xFFULL)
+#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK		BIT_ULL(62)
+#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK		BIT_ULL(63)
+#define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK		GENMASK_ULL(7, 0)
 
 #define AVIC_DOORBELL_PHYSICAL_ID_MASK			GENMASK_ULL(11, 0)
 
 #define AVIC_UNACCEL_ACCESS_WRITE_MASK		1
-#define AVIC_UNACCEL_ACCESS_OFFSET_MASK		0xFF0
-#define AVIC_UNACCEL_ACCESS_VECTOR_MASK		0xFFFFFFFF
+#define AVIC_UNACCEL_ACCESS_OFFSET_MASK		GENMASK(11, 4)
+#define AVIC_UNACCEL_ACCESS_VECTOR_MASK		GENMASK(31, 0)
 
 enum avic_ipi_failure_cause {
 	AVIC_IPI_FAILURE_INVALID_INT_TYPE,
@@ -607,30 +607,30 @@ static inline void __unused_size_checks(void)
 #define SVM_SELECTOR_G_SHIFT 11
 
 #define SVM_SELECTOR_TYPE_MASK (0xf)
-#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
-#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
-#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
-#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
-#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
-#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
-#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
-
-#define SVM_SELECTOR_WRITE_MASK (1 << 1)
+#define SVM_SELECTOR_S_MASK BIT(SVM_SELECTOR_S_SHIFT)
+#define SVM_SELECTOR_DPL_MASK GENMASK(SVM_SELECTOR_DPL_SHIFT + 1, SVM_SELECTOR_DPL_SHIFT)
+#define SVM_SELECTOR_P_MASK BIT(SVM_SELECTOR_P_SHIFT)
+#define SVM_SELECTOR_AVL_MASK BIT(SVM_SELECTOR_AVL_SHIFT)
+#define SVM_SELECTOR_L_MASK BIT(SVM_SELECTOR_L_SHIFT)
+#define SVM_SELECTOR_DB_MASK BIT(SVM_SELECTOR_DB_SHIFT)
+#define SVM_SELECTOR_G_MASK BIT(SVM_SELECTOR_G_SHIFT)
+
+#define SVM_SELECTOR_WRITE_MASK BIT(1)
 #define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
-#define SVM_SELECTOR_CODE_MASK (1 << 3)
+#define SVM_SELECTOR_CODE_MASK BIT(3)
 
-#define SVM_EVTINJ_VEC_MASK 0xff
+#define SVM_EVTINJ_VEC_MASK GENMASK(7, 0)
 
 #define SVM_EVTINJ_TYPE_SHIFT 8
-#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_MASK GENMASK(SVM_EVTINJ_TYPE_SHIFT + 2, SVM_EVTINJ_TYPE_SHIFT)
 
 #define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
 #define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
 #define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
 #define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
 
-#define SVM_EVTINJ_VALID (1 << 31)
-#define SVM_EVTINJ_VALID_ERR (1 << 11)
+#define SVM_EVTINJ_VALID_ERR BIT(11)
+#define SVM_EVTINJ_VALID BIT(31)
 
 #define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
 #define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
@@ -647,7 +647,7 @@ static inline void __unused_size_checks(void)
 #define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
 #define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
 
-#define SVM_EXITINFO_REG_MASK 0x0F
+#define SVM_EXITINFO_REG_MASK GENMASK(3, 0)
 
 #define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
 
-- 
2.52.0.239.gd5f0c6e74e-goog


  parent reply	other threads:[~2025-12-15 19:30 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-15 19:26 [PATCH] KVM: SVM: Fix redundant updates of LBR MSR intercepts Yosry Ahmed
2025-12-15 19:26 ` [PATCH v3 00/26] Nested SVM fixes, cleanups, and hardening Yosry Ahmed
2025-12-15 19:26 ` [PATCH v3 01/26] KVM: SVM: Switch svm_copy_lbrs() to a macro Yosry Ahmed
2025-12-15 19:26 ` [PATCH v3 02/26] KVM: SVM: Add missing save/restore handling of LBR MSRs Yosry Ahmed
2025-12-15 19:26 ` [PATCH v3 03/26] KVM: selftests: Add a test for LBR save/restore (ft. nested) Yosry Ahmed
2025-12-15 19:26 ` [PATCH v3 04/26] KVM: nSVM: Always inject a #GP if mapping VMCB12 fails on nested VMRUN Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 05/26] KVM: nSVM: Triple fault if mapping VMCB12 fails on nested #VMEXIT Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 06/26] KVM: nSVM: Triple fault if restore host CR3 " Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 07/26] KVM: nSVM: Drop nested_vmcb_check_{save/control}() wrappers Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 08/26] KVM: nSVM: Call enter_guest_mode() before switching to VMCB02 Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 09/26] KVM: nSVM: Make nested_svm_merge_msrpm() return an errno Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 10/26] KVM: nSVM: Call nested_svm_merge_msrpm() from enter_svm_guest_mode() Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 11/26] KVM: nSVM: Call nested_svm_init_mmu_context() before switching to VMCB02 Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 12/26] KVM: nSVM: Refactor minimal #VMEXIT handling out of nested_svm_vmexit() Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 13/26] KVM: nSVM: Unify handling of VMRUN failures with proper cleanup Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 14/26] KVM: nSVM: Clear EVENTINJ field in VMCB12 on nested #VMEXIT Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 15/26] KVM: nSVM: Drop the non-architectural consistency check for NP_ENABLE Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 16/26] KVM: nSVM: Add missing consistency check for nCR3 validity Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 17/26] KVM: nSVM: Add missing consistency check for hCR0.PG and NP_ENABLE Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 18/26] KVM: nSVM: Add missing consistency check for EFER, CR0, CR4, and CS Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 19/26] KVM: nSVM: Add missing consistency check for event_inj Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 20/26] KVM: SVM: Rename vmcb->nested_ctl to vmcb->misc_ctl Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 21/26] KVM: SVM: Rename vmcb->virt_ext to vmcb->misc_ctl2 Yosry Ahmed
2025-12-15 19:27 ` Yosry Ahmed [this message]
2025-12-15 19:27 ` [PATCH v3 23/26] KVM: nSVM: Cache all used fields from VMCB12 Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 24/26] KVM: nSVM: Restrict mapping VMCB12 on nested VMRUN Yosry Ahmed
2025-12-16 16:34   ` Yosry Ahmed
2025-12-16 21:34     ` Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 25/26] KVM: nSVM: Sanitize control fields copied from VMCB12 Yosry Ahmed
2025-12-15 19:27 ` [PATCH v3 26/26] KVM: nSVM: Only copy NP_ENABLE from VMCB01's misc_ctl Yosry Ahmed
2025-12-15 19:33 ` [PATCH] KVM: SVM: Fix redundant updates of LBR MSR intercepts Yosry Ahmed
2025-12-15 19:38   ` Sean Christopherson
2025-12-15 20:10     ` Yosry Ahmed
2026-01-14 22:07       ` Sean Christopherson
2026-01-15  0:35         ` Yosry Ahmed
2026-01-15  1:12           ` Sean Christopherson

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