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05b9405f2f
The virtual mapping and "GSI" routing of a particular vLPI is subject to change in response to the guest / userspace. This can be pretty annoying to deal with when KVM needs to track the physical state that's managed for vLPI direct injection. Make vgic_v4_unset_forwarding() resilient by using the host IRQ to resolve the vgic IRQ. Since this uses the LPI xarray directly, finding the ITS by doorbell address + grabbing it's its_lock is no longer necessary. Note that matching the right ITS / ITE is already handled in vgic_v4_set_forwarding(), and unless there's a bug in KVM's VGIC ITS emulation the virtual mapping that should remain stable for the lifetime of the vLPI mapping. Tested-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me> Signed-off-by: Oliver Upton <oliver.upton@linux.dev> Link: https://lore.kernel.org/r/20250523194722.4066715-4-oliver.upton@linux.dev Signed-off-by: Marc Zyngier <maz@kernel.org> |
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| .. | ||
| boot | ||
| configs | ||
| crypto | ||
| hyperv | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| tools | ||
| xen | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.platforms | ||
| Makefile | ||