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From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu
Cc: kernel-team@android.com
Subject: [PATCH] KVM: arm64: Drop unused workaround_flags vcpu field
Date: Wed,  8 Dec 2021 14:56:52 +0000	[thread overview]
Message-ID: <20211208145652.3071543-1-maz@kernel.org> (raw)

workaround_flags is a leftover from our earlier Spectre-v4 workaround
implementation, and now serves no purpose.

Get rid of the field and the corresponding asm-offset definition.

Fixes: 29e8910a566a ("KVM: arm64: Simplify handling of ARCH_WORKAROUND_2")
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 3 ---
 arch/arm64/kernel/asm-offsets.c   | 1 -
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 2a5f7f38006f..3811d19e5674 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -298,9 +298,6 @@ struct kvm_vcpu_arch {
 	/* Exception Information */
 	struct kvm_vcpu_fault_info fault;
 
-	/* State of various workarounds, see kvm_asm.h for bit assignment */
-	u64 workaround_flags;
-
 	/* Miscellaneous vcpu state flags */
 	u64 flags;
 
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 6d0c3afd36b8..1197e7679882 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -111,7 +111,6 @@ int main(void)
 #ifdef CONFIG_KVM
   DEFINE(VCPU_CONTEXT,		offsetof(struct kvm_vcpu, arch.ctxt));
   DEFINE(VCPU_FAULT_DISR,	offsetof(struct kvm_vcpu, arch.fault.disr_el1));
-  DEFINE(VCPU_WORKAROUND_FLAGS,	offsetof(struct kvm_vcpu, arch.workaround_flags));
   DEFINE(VCPU_HCR_EL2,		offsetof(struct kvm_vcpu, arch.hcr_el2));
   DEFINE(CPU_USER_PT_REGS,	offsetof(struct kvm_cpu_context, regs));
   DEFINE(CPU_RGSR_EL1,		offsetof(struct kvm_cpu_context, sys_regs[RGSR_EL1]));
-- 
2.30.2

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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: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	kernel-team@android.com
Subject: [PATCH] KVM: arm64: Drop unused workaround_flags vcpu field
Date: Wed,  8 Dec 2021 14:56:52 +0000	[thread overview]
Message-ID: <20211208145652.3071543-1-maz@kernel.org> (raw)

workaround_flags is a leftover from our earlier Spectre-v4 workaround
implementation, and now serves no purpose.

Get rid of the field and the corresponding asm-offset definition.

Fixes: 29e8910a566a ("KVM: arm64: Simplify handling of ARCH_WORKAROUND_2")
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 3 ---
 arch/arm64/kernel/asm-offsets.c   | 1 -
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 2a5f7f38006f..3811d19e5674 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -298,9 +298,6 @@ struct kvm_vcpu_arch {
 	/* Exception Information */
 	struct kvm_vcpu_fault_info fault;
 
-	/* State of various workarounds, see kvm_asm.h for bit assignment */
-	u64 workaround_flags;
-
 	/* Miscellaneous vcpu state flags */
 	u64 flags;
 
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 6d0c3afd36b8..1197e7679882 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -111,7 +111,6 @@ int main(void)
 #ifdef CONFIG_KVM
   DEFINE(VCPU_CONTEXT,		offsetof(struct kvm_vcpu, arch.ctxt));
   DEFINE(VCPU_FAULT_DISR,	offsetof(struct kvm_vcpu, arch.fault.disr_el1));
-  DEFINE(VCPU_WORKAROUND_FLAGS,	offsetof(struct kvm_vcpu, arch.workaround_flags));
   DEFINE(VCPU_HCR_EL2,		offsetof(struct kvm_vcpu, arch.hcr_el2));
   DEFINE(CPU_USER_PT_REGS,	offsetof(struct kvm_cpu_context, regs));
   DEFINE(CPU_RGSR_EL1,		offsetof(struct kvm_cpu_context, sys_regs[RGSR_EL1]));
-- 
2.30.2


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

             reply	other threads:[~2021-12-08 14:57 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-08 14:56 Marc Zyngier [this message]
2021-12-08 14:56 ` [PATCH] KVM: arm64: Drop unused workaround_flags vcpu field Marc Zyngier

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