Commit fbc48a00 authored by Marc Zyngier's avatar Marc Zyngier

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: default avatarAlexander Graf <agraf@suse.de>
Acked-by: default avatarDavid Daney <david.daney@cavium.com>
Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Reviewed-by: default avatarChristoffer Dall <cdall@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <cdall@linaro.org>
parent 423de85a
......@@ -190,6 +190,7 @@
#define SYS_ICC_BPR1_EL1 sys_reg(3, 0, 12, 12, 3)
#define SYS_ICC_CTLR_EL1 sys_reg(3, 0, 12, 12, 4)
#define SYS_ICC_SRE_EL1 sys_reg(3, 0, 12, 12, 5)
#define SYS_ICC_GRPEN0_EL1 sys_reg(3, 0, 12, 12, 6)
#define SYS_ICC_GRPEN1_EL1 sys_reg(3, 0, 12, 12, 7)
#define SYS_CONTEXTIDR_EL1 sys_reg(3, 0, 13, 0, 1)
......
......@@ -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;
......
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