linux/virt
Marc Zyngier ba1ed9e17b KVM: arm: vgic-v2: Only use the virtual state when userspace accesses pending bits
There is no point in accessing the HW when writing to any of the
ISPENDR/ICPENDR registers from userspace, as only the guest should
be allowed to change the HW state.

Introduce new userspace-specific accessors that deal solely with
the virtual state. Note that the API differs from that of GICv3,
where userspace exclusively uses ISPENDR to set the state. Too
bad we can't reuse it.

Fixes: 82e40f558d ("KVM: arm/arm64: vgic-v2: Handle SGI bits in GICD_I{S,C}PENDR0 as WI")
Reviewed-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-04-23 16:26:31 +01:00
..
kvm KVM: arm: vgic-v2: Only use the virtual state when userspace accesses pending bits 2020-04-23 16:26:31 +01:00
lib KVM: lib: use jump label to handle resource release in irq_bypass_register_producer() 2020-01-08 18:16:01 +01:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00