Marc Zyngier 47053904e1 KVM: arm64: timers: Convert per-vcpu virtual offset to a global value ... Having a per-vcpu virtual offset is a pain. It needs to be synchronized on each update, and expands badly to a setup where different timers can have different offsets, or have composite offsets (as with NV). So let's start by replacing the use of the CNTVOFF_EL2 shadow register (which we want to reclaim for NV anyway), and make the virtual timer carry a pointer to a VM-wide offset. This simplifies the code significantly. It also addresses two terrible bugs: - The use of CNTVOFF_EL2 leads to some nice offset corruption when the sysreg gets reset, as reported by Joey. - The kvm mutex is taken from a vcpu ioctl, which goes against the locking rules... Reported-by: Joey Gouly <joey.gouly@arm.com> Reviewed-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230224173915.GA17407@e124191.cambridge.arm.com Tested-by: Joey Gouly <joey.gouly@arm.com> Link: https://lore.kernel.org/r/20230224191640.3396734-1-maz@kernel.org Signed-off-by: Oliver Upton <oliver.upton@linux.dev>		2023-03-11 02:00:40 -08:00
..
arm_arch_timer.h	KVM: arm64: timers: Convert per-vcpu virtual offset to a global value	2023-03-11 02:00:40 -08:00
arm_hypercalls.h	KVM: arm64: Setup a framework for hypercall bitmap firmware registers	2022-05-03 21:30:19 +01:00
arm_pmu.h	KVM: arm64: PMU: Implement PMUv3p5 long counter support	2022-11-19 12:56:39 +00:00
arm_psci.h	KVM: arm64: Factor out firmware register handling from psci.c	2022-05-03 14:48:54 +01:00
arm_vgic.h	KVM/riscv changes for 6.3	2023-02-15 12:33:28 -05:00
iodev.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 342	2019-06-05 17:37:07 +02:00