linux-kernel - [irqchip: irq/irqchip-next] KVM: arm64: Drop unused workaround

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Date:   Mon, 20 Dec 2021 14:00:46 -0000
From:   "irqchip-bot for Marc Zyngier" <tip-bot2@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     Marc Zyngier <maz@...nel.org>, tglx@...utronix.de
Subject: [irqchip: irq/irqchip-next] KVM: arm64: Drop unused workaround_flags
 vcpu field

The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID:     142ff9bddbde757674c7081ffc238cfcffa1859b
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/142ff9bddbde757674c7081ffc238cfcffa1859b
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Wed, 08 Dec 2021 14:46:41 
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Wed, 08 Dec 2021 14:54:07 

KVM: arm64: Drop unused workaround_flags vcpu field

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@...nel.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 2a5f7f3..3811d19 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 6d0c3af..1197e76 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]));