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Diffstat (limited to 'virt/kvm/arm/vgic-v3-emul.c')
-rw-r--r--virt/kvm/arm/vgic-v3-emul.c56
1 files changed, 50 insertions, 6 deletions
diff --git a/virt/kvm/arm/vgic-v3-emul.c b/virt/kvm/arm/vgic-v3-emul.c
index e9c3a7a83..e661e7fb9 100644
--- a/virt/kvm/arm/vgic-v3-emul.c
+++ b/virt/kvm/arm/vgic-v3-emul.c
@@ -76,8 +76,6 @@ static bool handle_mmio_ctlr(struct kvm_vcpu *vcpu,
vgic_reg_access(mmio, &reg, offset,
ACCESS_READ_VALUE | ACCESS_WRITE_VALUE);
if (mmio->is_write) {
- if (reg & GICD_CTLR_ENABLE_SS_G0)
- kvm_info("guest tried to enable unsupported Group0 interrupts\n");
vcpu->kvm->arch.vgic.enabled = !!(reg & GICD_CTLR_ENABLE_SS_G1);
vgic_update_state(vcpu->kvm);
return true;
@@ -173,6 +171,32 @@ static bool handle_mmio_clear_pending_reg_dist(struct kvm_vcpu *vcpu,
return false;
}
+static bool handle_mmio_set_active_reg_dist(struct kvm_vcpu *vcpu,
+ struct kvm_exit_mmio *mmio,
+ phys_addr_t offset)
+{
+ if (likely(offset >= VGIC_NR_PRIVATE_IRQS / 8))
+ return vgic_handle_set_active_reg(vcpu->kvm, mmio, offset,
+ vcpu->vcpu_id);
+
+ vgic_reg_access(mmio, NULL, offset,
+ ACCESS_READ_RAZ | ACCESS_WRITE_IGNORED);
+ return false;
+}
+
+static bool handle_mmio_clear_active_reg_dist(struct kvm_vcpu *vcpu,
+ struct kvm_exit_mmio *mmio,
+ phys_addr_t offset)
+{
+ if (likely(offset >= VGIC_NR_PRIVATE_IRQS / 8))
+ return vgic_handle_clear_active_reg(vcpu->kvm, mmio, offset,
+ vcpu->vcpu_id);
+
+ vgic_reg_access(mmio, NULL, offset,
+ ACCESS_READ_RAZ | ACCESS_WRITE_IGNORED);
+ return false;
+}
+
static bool handle_mmio_priority_reg_dist(struct kvm_vcpu *vcpu,
struct kvm_exit_mmio *mmio,
phys_addr_t offset)
@@ -428,13 +452,13 @@ static const struct vgic_io_range vgic_v3_dist_ranges[] = {
.base = GICD_ISACTIVER,
.len = 0x80,
.bits_per_irq = 1,
- .handle_mmio = handle_mmio_raz_wi,
+ .handle_mmio = handle_mmio_set_active_reg_dist,
},
{
.base = GICD_ICACTIVER,
.len = 0x80,
.bits_per_irq = 1,
- .handle_mmio = handle_mmio_raz_wi,
+ .handle_mmio = handle_mmio_clear_active_reg_dist,
},
{
.base = GICD_IPRIORITYR,
@@ -561,6 +585,26 @@ static bool handle_mmio_clear_enable_reg_redist(struct kvm_vcpu *vcpu,
ACCESS_WRITE_CLEARBIT);
}
+static bool handle_mmio_set_active_reg_redist(struct kvm_vcpu *vcpu,
+ struct kvm_exit_mmio *mmio,
+ phys_addr_t offset)
+{
+ struct kvm_vcpu *redist_vcpu = mmio->private;
+
+ return vgic_handle_set_active_reg(vcpu->kvm, mmio, offset,
+ redist_vcpu->vcpu_id);
+}
+
+static bool handle_mmio_clear_active_reg_redist(struct kvm_vcpu *vcpu,
+ struct kvm_exit_mmio *mmio,
+ phys_addr_t offset)
+{
+ struct kvm_vcpu *redist_vcpu = mmio->private;
+
+ return vgic_handle_clear_active_reg(vcpu->kvm, mmio, offset,
+ redist_vcpu->vcpu_id);
+}
+
static bool handle_mmio_set_pending_reg_redist(struct kvm_vcpu *vcpu,
struct kvm_exit_mmio *mmio,
phys_addr_t offset)
@@ -674,13 +718,13 @@ static const struct vgic_io_range vgic_redist_ranges[] = {
.base = SGI_base(GICR_ISACTIVER0),
.len = 0x04,
.bits_per_irq = 1,
- .handle_mmio = handle_mmio_raz_wi,
+ .handle_mmio = handle_mmio_set_active_reg_redist,
},
{
.base = SGI_base(GICR_ICACTIVER0),
.len = 0x04,
.bits_per_irq = 1,
- .handle_mmio = handle_mmio_raz_wi,
+ .handle_mmio = handle_mmio_clear_active_reg_redist,
},
{
.base = SGI_base(GICR_IPRIORITYR0),