[PATCH 07/56] arm64: kvm: Remove kern_hyp_va from get_vcpu_ptr
From: Marc Zyngier <maz@kernel.org>
Date: 2020-08-05 17:59:02
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
From: Andrew Scull <redacted> get_vcpu_ptr is an assembly accessor for the percpu value kvm_host_data->host_ctxt.__hyp_running_vcpu. kern_hyp_va only applies to nVHE however __hyp_running_vcpu is always assigned a pointer that has already had kern_hyp_va applied in __kvm_vcpu_run_nvhe. kern_hyp_va is currently idempotent as it just masks and inserts the tag, but this could change in future and the second application is unnecessary. Signed-off-by: Andrew Scull <redacted> Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: James Morse <james.morse@arm.com> Link: https://lore.kernel.org/r/20200618093616.164413-1-ascull@google.com (local) --- arch/arm64/include/asm/kvm_asm.h | 1 - 1 file changed, 1 deletion(-)
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 352aaebf4198..ac71d0939f2e 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h@@ -143,7 +143,6 @@ extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ]; .macro get_vcpu_ptr vcpu, ctxt get_host_ctxt \ctxt, \vcpu ldr \vcpu, [\ctxt, #HOST_CONTEXT_VCPU] - kern_hyp_va \vcpu .endm #endif
--
2.27.0
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