Thread (138 messages) 138 messages, 4 authors, 2018-02-25
STALE3035d REVIEWED: 2 (0M)

[PATCH v4 14/40] KVM: arm64: Remove kern_hyp_va() use in VHE switch function

From: Christoffer Dall <hidden>
Date: 2018-02-15 21:03:06
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

VHE kernels run completely in EL2 and therefore don't have a notion of
kernel and hyp addresses, they are all just kernel addresses.  Therefore
don't call kern_hyp_va() in the VHE switch function.

Reviewed-by: Andrew Jones <redacted>
Reviewed-by: Marc Zyngier <redacted>
Signed-off-by: Christoffer Dall <redacted>
---
 arch/arm64/kvm/hyp/switch.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index b6126af539b6..85dae7b94a0f 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -370,9 +370,7 @@ int kvm_vcpu_run_vhe(struct kvm_vcpu *vcpu)
 	bool fp_enabled;
 	u64 exit_code;
 
-	vcpu = kern_hyp_va(vcpu);
-
-	host_ctxt = kern_hyp_va(vcpu->arch.host_cpu_context);
+	host_ctxt = vcpu->arch.host_cpu_context;
 	host_ctxt->__hyp_running_vcpu = vcpu;
 	guest_ctxt = &vcpu->arch.ctxt;
 
-- 
2.14.2
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