Eric Auger 28e9d4bce3 KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace ... Commit 23bde34771 ("KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace") temporarily fixed a bug identified when attempting to access the GICR_TYPER register before the redistributor region setting, but dropped the support of the LAST bit. Emulating the GICR_TYPER.Last bit still makes sense for architecture compliance though. This patch restores its support (if the redistributor region was set) while keeping the code safe. We introduce a new helper, vgic_mmio_vcpu_rdist_is_last() which computes whether a redistributor is the highest one of a series of redistributor contributor pages. With this new implementation we do not need to have a uaccess read accessor anymore. Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20210405163941.510258-9-eric.auger@redhat.com		2021-04-06 14:51:38 +01:00
..
arm_arch_timer.h	KVM: arm64: timers: Move timer registers to the sys_regs file	2020-07-07 09:28:38 +01:00
arm_hypercalls.h	KVM: arm/arm64: Factor out hypercall handling from PSCI code	2019-10-21 19:20:26 +01:00
arm_pmu.h	KVM: arm64: Turn kvm_arm_support_pmu_v3() into a static key	2021-03-06 04:18:40 -05:00
arm_psci.h	KVM: arm/arm64: Factor out hypercall handling from PSCI code	2019-10-21 19:20:26 +01:00
arm_vgic.h	KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace	2021-04-06 14:51:38 +01:00
iodev.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 342	2019-06-05 17:37:07 +02:00