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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>
This commit is contained in:
Christoffer Dall 2017-06-04 13:23:52 +02:00
parent abd7229626
commit 0710f9a637
1 changed files with 8 additions and 6 deletions
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14
virt/kvm/arm/vgic/vgic-mmio-v3.c
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@ -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),