@@ -437,6 +437,7 @@ int vgic_v2_cpuif_uaccess(struct kvm_vcpu *vcpu, bool is_write,
struct vgic_io_device dev = {
.regions = vgic_v2_cpu_registers,
.nr_regions = ARRAY_SIZE(vgic_v2_cpu_registers),
+ .iodev_type = IODEV_CPUIF,
};
return vgic_uaccess(vcpu, &dev, is_write, offset, val);
@@ -448,6 +449,7 @@ int vgic_v2_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
struct vgic_io_device dev = {
.regions = vgic_v2_dist_registers,
.nr_regions = ARRAY_SIZE(vgic_v2_dist_registers),
+ .iodev_type = IODEV_DIST,
};
return vgic_uaccess(vcpu, &dev, is_write, offset, val);
@@ -484,7 +484,8 @@ static int dispatch_mmio_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
switch (iodev->iodev_type) {
case IODEV_CPUIF:
- return 1;
+ data = region->read(vcpu, addr, len);
+ break;
case IODEV_DIST:
data = region->read(vcpu, addr, len);
break;
@@ -517,6 +518,7 @@ static int dispatch_mmio_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev,
switch (iodev->iodev_type) {
case IODEV_CPUIF:
+ region->write(vcpu, addr, len, data);
break;
case IODEV_DIST:
region->write(vcpu, addr, len, data);
For VGICv2 save and restore the CPU interface registers are accessed. Restore the modality which has been altered. Also explicitly set the iodev_type for both the DIST and CPU interface. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- virt/kvm/arm/vgic/vgic-mmio-v2.c | 2 ++ virt/kvm/arm/vgic/vgic-mmio.c | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-)