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authorChristoffer Dall <cdall@linaro.org>2017-06-04 13:23:52 +0200
committerChristoffer Dall <cdall@linaro.org>2017-06-04 13:26:03 +0200
commit0710f9a637ef209e53c8127cf588a46130fcdcc5 (patch)
tree0a720891a1f06cac3d8e678d5fc70a63a1d55f71
parentabd7229626b9339e378a8cfcdebe0c0943b06a7f (diff)
downloadlinux-0710f9a637ef209e53c8127cf588a46130fcdcc5.tar.bz2
KVM: arm/arm64: Use uaccess functions for GICv3 {sc}active
We recently rewrote the sactive and cactive handlers to take the kvm lock for guest accesses to these registers. However, when accessed from userspace this lock is already held. Unfortunately we forgot to change the private accessors for GICv3, because these are redistributor registers and not distributor registers. Signed-off-by: Christoffer Dall <cdall@linaro.org>
-rw-r--r--virt/kvm/arm/vgic/vgic-mmio-v3.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/virt/kvm/arm/vgic/vgic-mmio-v3.c b/virt/kvm/arm/vgic/vgic-mmio-v3.c
index 23c0d56436a7..e25567a93dd5 100644
--- a/virt/kvm/arm/vgic/vgic-mmio-v3.c
+++ b/virt/kvm/arm/vgic/vgic-mmio-v3.c
@@ -528,12 +528,14 @@ static const struct vgic_register_region vgic_v3_sgibase_registers[] = {
vgic_mmio_read_pending, vgic_mmio_write_cpending,
vgic_mmio_read_raz, vgic_mmio_write_wi, 4,
VGIC_ACCESS_32bit),
- REGISTER_DESC_WITH_LENGTH(GICR_ISACTIVER0,
- vgic_mmio_read_active, vgic_mmio_write_sactive, 4,
- VGIC_ACCESS_32bit),
- REGISTER_DESC_WITH_LENGTH(GICR_ICACTIVER0,
- vgic_mmio_read_active, vgic_mmio_write_cactive, 4,
- VGIC_ACCESS_32bit),
+ REGISTER_DESC_WITH_LENGTH_UACCESS(GICR_ISACTIVER0,
+ vgic_mmio_read_active, vgic_mmio_write_sactive,
+ NULL, vgic_mmio_uaccess_write_sactive,
+ 4, VGIC_ACCESS_32bit),
+ REGISTER_DESC_WITH_LENGTH_UACCESS(GICR_ICACTIVER0,
+ vgic_mmio_read_active, vgic_mmio_write_cactive,
+ NULL, vgic_mmio_uaccess_write_cactive,
+ 4, VGIC_ACCESS_32bit),
REGISTER_DESC_WITH_LENGTH(GICR_IPRIORITYR0,
vgic_mmio_read_priority, vgic_mmio_write_priority, 32,
VGIC_ACCESS_32bit | VGIC_ACCESS_8bit),