KVM: selftests: Add VGICv5 SPI injection tests

Add VGICv5 SPI delivery coverage through KVM_IRQ_LINE. SPIs are
configured through the virtual IRS and delivered through the GICv5 CPU
interface, so the test needs to exercise both the userspace injection
path and the guest-side IRS programming path.

Map the virtual IRS into the guest, enable the IRS, configure SPI
trigger mode and target VPE from the guest, and check delivery of a
default SPI and SPI 1023, the last SPI in the maximum configured
range.  This also exercises VGIC initialization and the IRS selector
at KVM's upper bound. Verify that invalid SPI numbers are rejected,
that lowering an edge-triggered SPI after it is pending does not
recall it, and that level-sensitive SPIs are delivered.

Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Link: https://patch.msgid.link/20260904113404.4051341-47-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

0 files changed, 0 insertions, 0 deletions