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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2017-08-03 12:09:05 +0200 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-19 10:53:10 +0000 |
| commit | 3df59d8dd3c2526b33d51af9e6f66e61262de71b (patch) | |
| tree | 26679eaf7ef8824f7fb535702ecc0c6af0c20eae /arch/arm/kvm/hyp | |
| parent | 35a84dec00a707aed97c1ff9ebb1cd1eb67c7052 (diff) | |
| download | linux-3df59d8dd3c2526b33d51af9e6f66e61262de71b.tar.gz linux-3df59d8dd3c2526b33d51af9e6f66e61262de71b.tar.bz2 linux-3df59d8dd3c2526b33d51af9e6f66e61262de71b.zip | |
KVM: arm/arm64: Get rid of vcpu->arch.irq_lines
We currently have a separate read-modify-write of the HCR_EL2 on entry
to the guest for the sole purpose of setting the VF and VI bits, if set.
Since this is most rarely the case (only when using userspace IRQ chip
and interrupts are in flight), let's get rid of this operation and
instead modify the bits in the vcpu->arch.hcr[_el2] directly when
needed.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/kvm/hyp')
| -rw-r--r-- | arch/arm/kvm/hyp/switch.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kvm/hyp/switch.c b/arch/arm/kvm/hyp/switch.c index ae45ae96aac2..e86679daddff 100644 --- a/arch/arm/kvm/hyp/switch.c +++ b/arch/arm/kvm/hyp/switch.c @@ -44,7 +44,7 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu, u32 *fpexc_host) isb(); } - write_sysreg(vcpu->arch.hcr | vcpu->arch.irq_lines, HCR); + write_sysreg(vcpu->arch.hcr, HCR); /* Trap on AArch32 cp15 c15 accesses (EL1 or EL0) */ write_sysreg(HSTR_T(15), HSTR); write_sysreg(HCPTR_TTA | HCPTR_TCP(10) | HCPTR_TCP(11), HCPTR); |