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From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: kernel-team@android.com, Will Deacon <will@kernel.org>,
	Mark Brown <broonie@kernel.org>
Subject: [PATCH 11/18] KVM: arm64: Move vcpu ON_UNSUPPORTED_CPU flag to the state flag set
Date: Sat, 28 May 2022 12:38:21 +0100	[thread overview]
Message-ID: <20220528113829.1043361-12-maz@kernel.org> (raw)
In-Reply-To: <20220528113829.1043361-1-maz@kernel.org>

The ON_UNSUPPORTED_CPU flag is only there to track the sad fact
that we have ended-up on a CPU where we cannot really run.

Since this is only for the host kernel's use, move it to the state
set.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a28a2dca8767..e0a2edca5861 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -511,6 +511,8 @@ struct kvm_vcpu_arch {
 #define HOST_SVE_ENABLED	__vcpu_single_flag(sflags, BIT(0))
 /* SME enabled for EL0 */
 #define HOST_SME_ENABLED	__vcpu_single_flag(sflags, BIT(1))
+/* Physical CPU not in supported_cpus */
+#define ON_UNSUPPORTED_CPU	__vcpu_single_flag(sflags, BIT(2))
 
 /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */
 #define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) +	\
@@ -533,7 +535,6 @@ struct kvm_vcpu_arch {
 })
 
 /* vcpu_arch flags field values: */
-#define KVM_ARM64_ON_UNSUPPORTED_CPU	(1 << 15) /* Physical CPU not in supported_cpus */
 #define KVM_ARM64_WFIT			(1 << 17) /* WFIT instruction trapped */
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 				 KVM_GUESTDBG_USE_SW_BP | \
@@ -553,13 +554,13 @@ struct kvm_vcpu_arch {
 #endif
 
 #define vcpu_on_unsupported_cpu(vcpu)					\
-	((vcpu)->arch.flags & KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_get_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_set_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags |= KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_set_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_clear_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags &= ~KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_clear_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_gp_regs(v)		(&(v)->arch.ctxt.regs)
 
-- 
2.34.1

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Oliver Upton <oupton@google.com>, Will Deacon <will@kernel.org>,
	Fuad Tabba <tabba@google.com>,
	Quentin Perret <qperret@google.com>,
	Mark Brown <broonie@kernel.org>,
	kernel-team@android.com
Subject: [PATCH 11/18] KVM: arm64: Move vcpu ON_UNSUPPORTED_CPU flag to the state flag set
Date: Sat, 28 May 2022 12:38:21 +0100	[thread overview]
Message-ID: <20220528113829.1043361-12-maz@kernel.org> (raw)
In-Reply-To: <20220528113829.1043361-1-maz@kernel.org>

The ON_UNSUPPORTED_CPU flag is only there to track the sad fact
that we have ended-up on a CPU where we cannot really run.

Since this is only for the host kernel's use, move it to the state
set.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a28a2dca8767..e0a2edca5861 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -511,6 +511,8 @@ struct kvm_vcpu_arch {
 #define HOST_SVE_ENABLED	__vcpu_single_flag(sflags, BIT(0))
 /* SME enabled for EL0 */
 #define HOST_SME_ENABLED	__vcpu_single_flag(sflags, BIT(1))
+/* Physical CPU not in supported_cpus */
+#define ON_UNSUPPORTED_CPU	__vcpu_single_flag(sflags, BIT(2))
 
 /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */
 #define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) +	\
@@ -533,7 +535,6 @@ struct kvm_vcpu_arch {
 })
 
 /* vcpu_arch flags field values: */
-#define KVM_ARM64_ON_UNSUPPORTED_CPU	(1 << 15) /* Physical CPU not in supported_cpus */
 #define KVM_ARM64_WFIT			(1 << 17) /* WFIT instruction trapped */
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 				 KVM_GUESTDBG_USE_SW_BP | \
@@ -553,13 +554,13 @@ struct kvm_vcpu_arch {
 #endif
 
 #define vcpu_on_unsupported_cpu(vcpu)					\
-	((vcpu)->arch.flags & KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_get_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_set_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags |= KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_set_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_clear_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags &= ~KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_clear_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_gp_regs(v)		(&(v)->arch.ctxt.regs)
 
-- 
2.34.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Oliver Upton <oupton@google.com>, Will Deacon <will@kernel.org>,
	Fuad Tabba <tabba@google.com>,
	Quentin Perret <qperret@google.com>,
	Mark Brown <broonie@kernel.org>,
	kernel-team@android.com
Subject: [PATCH 11/18] KVM: arm64: Move vcpu ON_UNSUPPORTED_CPU flag to the state flag set
Date: Sat, 28 May 2022 12:38:21 +0100	[thread overview]
Message-ID: <20220528113829.1043361-12-maz@kernel.org> (raw)
In-Reply-To: <20220528113829.1043361-1-maz@kernel.org>

The ON_UNSUPPORTED_CPU flag is only there to track the sad fact
that we have ended-up on a CPU where we cannot really run.

Since this is only for the host kernel's use, move it to the state
set.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a28a2dca8767..e0a2edca5861 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -511,6 +511,8 @@ struct kvm_vcpu_arch {
 #define HOST_SVE_ENABLED	__vcpu_single_flag(sflags, BIT(0))
 /* SME enabled for EL0 */
 #define HOST_SME_ENABLED	__vcpu_single_flag(sflags, BIT(1))
+/* Physical CPU not in supported_cpus */
+#define ON_UNSUPPORTED_CPU	__vcpu_single_flag(sflags, BIT(2))
 
 /* Pointer to the vcpu's SVE FFR for sve_{save,load}_state() */
 #define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) +	\
@@ -533,7 +535,6 @@ struct kvm_vcpu_arch {
 })
 
 /* vcpu_arch flags field values: */
-#define KVM_ARM64_ON_UNSUPPORTED_CPU	(1 << 15) /* Physical CPU not in supported_cpus */
 #define KVM_ARM64_WFIT			(1 << 17) /* WFIT instruction trapped */
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \
 				 KVM_GUESTDBG_USE_SW_BP | \
@@ -553,13 +554,13 @@ struct kvm_vcpu_arch {
 #endif
 
 #define vcpu_on_unsupported_cpu(vcpu)					\
-	((vcpu)->arch.flags & KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_get_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_set_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags |= KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_set_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_clear_on_unsupported_cpu(vcpu)				\
-	((vcpu)->arch.flags &= ~KVM_ARM64_ON_UNSUPPORTED_CPU)
+	vcpu_clear_flag(vcpu, ON_UNSUPPORTED_CPU)
 
 #define vcpu_gp_regs(v)		(&(v)->arch.ctxt.regs)
 
-- 
2.34.1


  parent reply	other threads:[~2022-05-28 11:49 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-28 11:38 [PATCH 00/18] KVM/arm64: Refactoring the vcpu flags Marc Zyngier
2022-05-28 11:38 ` Marc Zyngier
2022-05-28 11:38 ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 01/18] KVM: arm64: Always start with clearing SVE flag on load Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-30 14:41   ` Mark Brown
2022-05-30 14:41     ` Mark Brown
2022-05-30 14:41     ` Mark Brown
2022-06-06 11:28     ` Marc Zyngier
2022-06-06 11:28       ` Marc Zyngier
2022-06-06 11:28       ` Marc Zyngier
2022-06-06 12:16       ` Mark Brown
2022-06-06 12:16         ` Mark Brown
2022-06-06 12:16         ` Mark Brown
2022-05-28 11:38 ` [PATCH 02/18] KVM: arm64: Always start with clearing SME " Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-30 14:51   ` Mark Brown
2022-05-30 14:51     ` Mark Brown
2022-05-30 14:51     ` Mark Brown
2022-05-28 11:38 ` [PATCH 03/18] KVM: arm64: Drop FP_FOREIGN_STATE from the hypervisor code Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-03  5:23   ` Reiji Watanabe
2022-06-03  5:23     ` Reiji Watanabe
2022-06-03  5:23     ` Reiji Watanabe
2022-06-04  8:10     ` Marc Zyngier
2022-06-04  8:10       ` Marc Zyngier
2022-06-04  8:10       ` Marc Zyngier
2022-06-07  4:47       ` Reiji Watanabe
2022-06-07  4:47         ` Reiji Watanabe
2022-06-07  4:47         ` Reiji Watanabe
2022-06-03  9:09   ` Mark Brown
2022-06-03  9:09     ` Mark Brown
2022-06-03  9:09     ` Mark Brown
2022-05-28 11:38 ` [PATCH 04/18] KVM: arm64: Move FP state ownership from flag to a tristate Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-03  9:14   ` Mark Brown
2022-06-03  9:14     ` Mark Brown
2022-06-03  9:14     ` Mark Brown
2022-06-06  8:41     ` Marc Zyngier
2022-06-06  8:41       ` Marc Zyngier
2022-06-06  8:41       ` Marc Zyngier
2022-06-06 10:31       ` Mark Brown
2022-06-06 10:31         ` Mark Brown
2022-06-06 10:31         ` Mark Brown
2022-06-04  8:16   ` Reiji Watanabe
2022-06-04  8:16     ` Reiji Watanabe
2022-06-04  8:16     ` Reiji Watanabe
2022-05-28 11:38 ` [PATCH 05/18] KVM: arm64: Add helpers to manipulate vcpu flags among a set Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-08  5:26   ` Reiji Watanabe
2022-06-08  5:26     ` Reiji Watanabe
2022-06-08  5:26     ` Reiji Watanabe
2022-06-08  6:51     ` Marc Zyngier
2022-06-08  6:51       ` Marc Zyngier
2022-06-08  6:51       ` Marc Zyngier
2022-06-09  2:25       ` Reiji Watanabe
2022-06-09  2:25         ` Reiji Watanabe
2022-06-09  2:25         ` Reiji Watanabe
2022-05-28 11:38 ` [PATCH 06/18] KVM: arm64: Add three sets of flags to the vcpu state Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-08 15:23   ` Fuad Tabba
2022-06-08 15:23     ` Fuad Tabba
2022-06-08 15:23     ` Fuad Tabba
2022-06-09  6:10   ` Reiji Watanabe
2022-06-09  6:10     ` Reiji Watanabe
2022-06-09  6:10     ` Reiji Watanabe
2022-06-09  7:46     ` Marc Zyngier
2022-06-09  7:46       ` Marc Zyngier
2022-06-09  7:46       ` Marc Zyngier
2022-06-09 17:24       ` Reiji Watanabe
2022-06-09 17:24         ` Reiji Watanabe
2022-06-09 17:24         ` Reiji Watanabe
2022-06-10  7:48         ` Marc Zyngier
2022-06-10  7:48           ` Marc Zyngier
2022-06-10  7:48           ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 07/18] KVM: arm64: Move vcpu configuration flags into their own set Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-09  6:15   ` Reiji Watanabe
2022-06-09  6:15     ` Reiji Watanabe
2022-06-09  6:15     ` Reiji Watanabe
2022-05-28 11:38 ` [PATCH 08/18] KVM: arm64: Move vcpu PC/Exception flags to the input flag set Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-10  6:13   ` Reiji Watanabe
2022-06-10  6:13     ` Reiji Watanabe
2022-06-10  6:13     ` Reiji Watanabe
2022-05-28 11:38 ` [PATCH 09/18] KVM: arm64: Move vcpu debug/SPE/TRBE " Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-08 15:16   ` Fuad Tabba
2022-06-08 15:16     ` Fuad Tabba
2022-06-08 15:16     ` Fuad Tabba
2022-06-08 16:01     ` Marc Zyngier
2022-06-08 16:01       ` Marc Zyngier
2022-06-08 16:01       ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 10/18] KVM: arm64: Move vcpu SVE/SME flags to the state " Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` Marc Zyngier [this message]
2022-05-28 11:38   ` [PATCH 11/18] KVM: arm64: Move vcpu ON_UNSUPPORTED_CPU flag " Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 12/18] KVM: arm64: Move vcpu WFIT " Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 13/18] KVM: arm64: Kill unused vcpu flags field Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 14/18] KVM: arm64: Convert vcpu sysregs_loaded_on_cpu to a state flag Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 15/18] KVM: arm64: Warn when PENDING_EXCEPTION and INCREMENT_PC are set together Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-06-08 15:16   ` Fuad Tabba
2022-06-08 15:16     ` Fuad Tabba
2022-06-08 15:16     ` Fuad Tabba
2022-06-08 16:42     ` Marc Zyngier
2022-06-08 16:42       ` Marc Zyngier
2022-06-08 16:42       ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 16/18] KVM: arm64: Add build-time sanity checks for flags Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 17/18] KVM: arm64: Reduce the size of the vcpu flag members Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38 ` [PATCH 18/18] KVM: arm64: Document why pause cannot be turned into a flag Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-28 11:38   ` Marc Zyngier
2022-05-30  8:28 ` [PATCH 00/18] KVM/arm64: Refactoring the vcpu flags Marc Zyngier
2022-05-30  8:28   ` Marc Zyngier
2022-05-30  8:28   ` Marc Zyngier
2022-06-07 13:43 ` Marc Zyngier
2022-06-07 13:43   ` Marc Zyngier
2022-06-07 13:43   ` Marc Zyngier

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