kernel/tools/testing/selftests/kvm/arm64/vgic_init.c, branch linux-rolling-stable

KVM: arm64: selftests: Create a VGICv3 for 'default' VMs

2025-09-24T18:23:32Z

Start creating a VGICv3 by default unless explicitly opted-out by the test. While having an interrupt controller is nice, the real benefit here is clearing a hurdle for EL2 VMs which mandate the presence of a VGIC. Signed-off-by: Oliver Upton Signed-off-by: Marc Zyngier

Merge branch 'kvm-arm64/vgic-v4-ctl' into kvmarm/next

2025-07-28T15:11:38Z

* kvm-arm64/vgic-v4-ctl: : Userspace control of nASSGIcap, courtesy of Raghavendra Rao Ananta : : Allow userspace to decide if support for SGIs without an active state is : advertised to the guest, allowing VMs from GICv3-only hardware to be : migrated to to GICv4.1 capable machines. Documentation: KVM: arm64: Describe VGICv3 registers writable pre-init KVM: arm64: selftests: Add test for nASSGIcap attribute KVM: arm64: vgic-v3: Allow userspace to write GICD_TYPER2.nASSGIcap KVM: arm64: vgic-v3: Allow access to GICD_IIDR prior to initialization KVM: arm64: vgic-v3: Consolidate MAINT_IRQ handling KVM: arm64: Disambiguate support for vSGIs v. vLPIs Signed-off-by: Oliver Upton

KVM: arm64: selftests: Add test for nASSGIcap attribute

2025-07-26T15:45:52Z

Extend vgic_init to test the nASSGIcap attribute, asserting that it is configurable (within reason) prior to initializing the VGIC. Additionally, check that userspace cannot set the attribute after the VGIC has been initialized. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Eric Auger Reviewed-by: Marc Zyngier Link: https://lore.kernel.org/r/20250724062805.2658919-6-oliver.upton@linux.dev Signed-off-by: Oliver Upton

KVM: arm64: selftest: vgic-v3: Add basic GICv3 sysreg userspace access test

2025-07-26T15:36:58Z

We have a lot of more or less useful vgic tests, but none of them tracks the availability of GICv3 system registers, which is a bit annoying. Add one such test, which covers both EL1 and EL2 registers. Signed-off-by: Marc Zyngier Tested-by: Itaru Kitayama Reviewed-by: Sebastian Ott Link: https://lore.kernel.org/r/20250718111154.104029-5-maz@kernel.org Signed-off-by: Oliver Upton

KVM: selftests: Use canonical $(ARCH) paths for KVM selftests directories

2024-12-18T22:15:04Z

Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum Acked-by: Claudio Imbrenda Acked-by: Andrew Jones Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson