linux/include/kvm
Gavin Shan a23eaf9368 KVM: arm64: Add helper vgic_write_guest_lock()
Currently, the unknown no-running-vcpu sites are reported when a
dirty page is tracked by mark_page_dirty_in_slot(). Until now, the
only known no-running-vcpu site is saving vgic/its tables through
KVM_DEV_ARM_{VGIC_GRP_CTRL, ITS_SAVE_TABLES} command on KVM device
"kvm-arm-vgic-its". Unfortunately, there are more unknown sites to
be handled and no-running-vcpu context will be allowed in these
sites: (1) KVM_DEV_ARM_{VGIC_GRP_CTRL, ITS_RESTORE_TABLES} command
on KVM device "kvm-arm-vgic-its" to restore vgic/its tables. The
vgic3 LPI pending status could be restored. (2) Save vgic3 pending
table through KVM_DEV_ARM_{VGIC_GRP_CTRL, VGIC_SAVE_PENDING_TABLES}
command on KVM device "kvm-arm-vgic-v3".

In order to handle those unknown cases, we need a unified helper
vgic_write_guest_lock(). struct vgic_dist::save_its_tables_in_progress
is also renamed to struct vgic_dist::save_tables_in_progress.

No functional change intended.

Suggested-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230126235451.469087-3-gshan@redhat.com
2023-01-29 18:46:11 +00:00
..
arm_arch_timer.h KVM: arm64: Simplify kvm_cpu_has_pending_timer() 2022-04-20 13:24:44 +01:00
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: arm64: Add helper vgic_write_guest_lock() 2023-01-29 18:46:11 +00:00
iodev.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 342 2019-06-05 17:37:07 +02:00