diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-06-09 12:49:43 +0100 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-06-15 09:45:02 +0100 |
| commit | fbc48a0011deb3d51cb657ca9c0f9083f41c0665 (patch) | |
| tree | e7820a1143154e39affc4ef525cc2e2a13d05d8f /virt | |
| parent | 423de85a98c2b50715a0784a74f6124fbc0b1548 (diff) | |
| download | linux-fbc48a0011deb3d51cb657ca9c0f9083f41c0665.tar.gz linux-fbc48a0011deb3d51cb657ca9c0f9083f41c0665.tar.bz2 linux-fbc48a0011deb3d51cb657ca9c0f9083f41c0665.zip | |
KVM: arm64: vgic-v3: Add ICV_IGNREN0_EL1 handler
Add a handler for reading/writing the guest's view of the ICC_IGRPEN0_EL1
register, which is located in the ICH_VMCR_EL2.VENG0 field.
Tested-by: Alexander Graf <agraf@suse.de>
Acked-by: David Daney <david.daney@cavium.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/arm/hyp/vgic-v3-sr.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c index f53908cc981c..45927762bf14 100644 --- a/virt/kvm/arm/hyp/vgic-v3-sr.c +++ b/virt/kvm/arm/hyp/vgic-v3-sr.c @@ -689,11 +689,28 @@ static void __hyp_text __vgic_v3_write_eoir(struct kvm_vcpu *vcpu, u32 vmcr, int __vgic_v3_clear_active_lr(lr, lr_val); } +static void __hyp_text __vgic_v3_read_igrpen0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) +{ + vcpu_set_reg(vcpu, rt, !!(vmcr & ICH_VMCR_ENG0_MASK)); +} + static void __hyp_text __vgic_v3_read_igrpen1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { vcpu_set_reg(vcpu, rt, !!(vmcr & ICH_VMCR_ENG1_MASK)); } +static void __hyp_text __vgic_v3_write_igrpen0(struct kvm_vcpu *vcpu, u32 vmcr, int rt) +{ + u64 val = vcpu_get_reg(vcpu, rt); + + if (val & 1) + vmcr |= ICH_VMCR_ENG0_MASK; + else + vmcr &= ~ICH_VMCR_ENG0_MASK; + + __vgic_v3_write_vmcr(vmcr); +} + static void __hyp_text __vgic_v3_write_igrpen1(struct kvm_vcpu *vcpu, u32 vmcr, int rt) { u64 val = vcpu_get_reg(vcpu, rt); @@ -910,6 +927,12 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) case SYS_ICC_HPPIR1_EL1: fn = __vgic_v3_read_hppir; break; + case SYS_ICC_GRPEN0_EL1: + if (is_read) + fn = __vgic_v3_read_igrpen0; + else + fn = __vgic_v3_write_igrpen0; + break; case SYS_ICC_BPR0_EL1: if (is_read) fn = __vgic_v3_read_bpr0; |