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-rw-r--r--include/linux/irqchip/arm-gic-v3.h2
-rw-r--r--virt/kvm/arm/vgic/vgic-mmio-v2.c16
-rw-r--r--virt/kvm/arm/vgic/vgic-mmio.c16
-rw-r--r--virt/kvm/arm/vgic/vgic-v3.c20
-rw-r--r--virt/kvm/arm/vgic/vgic.h5
5 files changed, 39 insertions, 20 deletions
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 7f6d904a62c6..170e00a40826 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -404,8 +404,6 @@
#define ICH_HCR_EN (1 << 0)
#define ICH_HCR_UIE (1 << 1)
-#define ICH_VMCR_CTLR_SHIFT 0
-#define ICH_VMCR_CTLR_MASK (0x21f << ICH_VMCR_CTLR_SHIFT)
#define ICH_VMCR_CBPR_SHIFT 4
#define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT)
#define ICH_VMCR_EOIM_SHIFT 9
diff --git a/virt/kvm/arm/vgic/vgic-mmio-v2.c b/virt/kvm/arm/vgic/vgic-mmio-v2.c
index fa68dd41756e..a3ad7ff95c9b 100644
--- a/virt/kvm/arm/vgic/vgic-mmio-v2.c
+++ b/virt/kvm/arm/vgic/vgic-mmio-v2.c
@@ -213,22 +213,6 @@ static void vgic_mmio_write_sgipends(struct kvm_vcpu *vcpu,
}
}
-static void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
-{
- if (kvm_vgic_global_state.type == VGIC_V2)
- vgic_v2_set_vmcr(vcpu, vmcr);
- else
- vgic_v3_set_vmcr(vcpu, vmcr);
-}
-
-static void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
-{
- if (kvm_vgic_global_state.type == VGIC_V2)
- vgic_v2_get_vmcr(vcpu, vmcr);
- else
- vgic_v3_get_vmcr(vcpu, vmcr);
-}
-
#define GICC_ARCH_VERSION_V2 0x2
/* These are for userland accesses only, there is no guest-facing emulation. */
diff --git a/virt/kvm/arm/vgic/vgic-mmio.c b/virt/kvm/arm/vgic/vgic-mmio.c
index 746c8afca718..1d1886e7d640 100644
--- a/virt/kvm/arm/vgic/vgic-mmio.c
+++ b/virt/kvm/arm/vgic/vgic-mmio.c
@@ -385,6 +385,22 @@ vgic_find_mmio_region(const struct vgic_register_region *region, int nr_regions,
sizeof(region[0]), match_region);
}
+void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
+{
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_set_vmcr(vcpu, vmcr);
+ else
+ vgic_v3_set_vmcr(vcpu, vmcr);
+}
+
+void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
+{
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_get_vmcr(vcpu, vmcr);
+ else
+ vgic_v3_get_vmcr(vcpu, vmcr);
+}
+
/*
* kvm_mmio_read_buf() returns a value in a format where it can be converted
* to a byte array and be directly observed as the guest wanted it to appear
diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 679ba935698f..42ff9c9826d3 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -175,10 +175,18 @@ void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp)
{
u32 vmcr;
- vmcr = (vmcrp->ctlr << ICH_VMCR_CTLR_SHIFT) & ICH_VMCR_CTLR_MASK;
+ /*
+ * Ignore the FIQen bit, because GIC emulation always implies
+ * SRE=1 which means the vFIQEn bit is also RES1.
+ */
+ vmcr = ((vmcrp->ctlr >> ICC_CTLR_EL1_EOImode_SHIFT) <<
+ ICH_VMCR_EOIM_SHIFT) & ICH_VMCR_EOIM_MASK;
+ vmcr |= (vmcrp->ctlr << ICH_VMCR_CBPR_SHIFT) & ICH_VMCR_CBPR_MASK;
vmcr |= (vmcrp->abpr << ICH_VMCR_BPR1_SHIFT) & ICH_VMCR_BPR1_MASK;
vmcr |= (vmcrp->bpr << ICH_VMCR_BPR0_SHIFT) & ICH_VMCR_BPR0_MASK;
vmcr |= (vmcrp->pmr << ICH_VMCR_PMR_SHIFT) & ICH_VMCR_PMR_MASK;
+ vmcr |= (vmcrp->grpen0 << ICH_VMCR_ENG0_SHIFT) & ICH_VMCR_ENG0_MASK;
+ vmcr |= (vmcrp->grpen1 << ICH_VMCR_ENG1_SHIFT) & ICH_VMCR_ENG1_MASK;
vcpu->arch.vgic_cpu.vgic_v3.vgic_vmcr = vmcr;
}
@@ -187,10 +195,18 @@ void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcrp)
{
u32 vmcr = vcpu->arch.vgic_cpu.vgic_v3.vgic_vmcr;
- vmcrp->ctlr = (vmcr & ICH_VMCR_CTLR_MASK) >> ICH_VMCR_CTLR_SHIFT;
+ /*
+ * Ignore the FIQen bit, because GIC emulation always implies
+ * SRE=1 which means the vFIQEn bit is also RES1.
+ */
+ vmcrp->ctlr = ((vmcr >> ICH_VMCR_EOIM_SHIFT) <<
+ ICC_CTLR_EL1_EOImode_SHIFT) & ICC_CTLR_EL1_EOImode_MASK;
+ vmcrp->ctlr |= (vmcr & ICH_VMCR_CBPR_MASK) >> ICH_VMCR_CBPR_SHIFT;
vmcrp->abpr = (vmcr & ICH_VMCR_BPR1_MASK) >> ICH_VMCR_BPR1_SHIFT;
vmcrp->bpr = (vmcr & ICH_VMCR_BPR0_MASK) >> ICH_VMCR_BPR0_SHIFT;
vmcrp->pmr = (vmcr & ICH_VMCR_PMR_MASK) >> ICH_VMCR_PMR_SHIFT;
+ vmcrp->grpen0 = (vmcr & ICH_VMCR_ENG0_MASK) >> ICH_VMCR_ENG0_SHIFT;
+ vmcrp->grpen1 = (vmcr & ICH_VMCR_ENG1_MASK) >> ICH_VMCR_ENG1_SHIFT;
}
#define INITIAL_PENDBASER_VALUE \
diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h
index 4505fd4919fd..ecfe1a6c841a 100644
--- a/virt/kvm/arm/vgic/vgic.h
+++ b/virt/kvm/arm/vgic/vgic.h
@@ -65,6 +65,9 @@ struct vgic_vmcr {
u32 abpr;
u32 bpr;
u32 pmr;
+ /* Below member variable are valid only for GICv3 */
+ u32 grpen0;
+ u32 grpen1;
};
struct vgic_reg_attr {
@@ -137,6 +140,8 @@ int vgic_v3_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
int vgic_v3_redist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
int offset, u32 *val);
int kvm_register_vgic_device(unsigned long type);
+void vgic_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
+void vgic_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
int vgic_lazy_init(struct kvm *kvm);
int vgic_init(struct kvm *kvm);