linux-stable.git - Linux kernel stable tree

Age	Commit message (Collapse)	Author
2026-07-07	KVM: selftests: Add a helper to set proc IRQ affinity for IRQ test	Josh Hilke
	Add a utility, proc_irq_set_smp_affinity(), to set the CPU affinity of a Linux host IRQ via the proc filesystem. Use smp_affinity_list instead of smp_affinity to avoid having to convert the single CPU to a bitmask. The helper will be used by the eventfd IRQ test to verify delivery of IRQs when the affinity is randomized/modified. Signed-off-by: Josh Hilke <jrhilke@google.com> [sean: make the utility self-contained, drop "list", massage changelog] Link: https://patch.msgid.link/20260626213534.3866178-11-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
2026-07-07	KVM: selftests: Add helper to get host IRQ from device MSI-X for IRQ bypass test	David Matlack
	Introduce proc_util.c and proc_util.h to house utility functions for interacting with the proc filesystem. Add vfio_msix_to_host_irq(), which parses /proc/interrupts, to get the host Linux IRQ for a given VFIO device BDF and MSI-X vector. This helper will be used by the eventfd IRQ test to print the host IRQ number when triggering IRQs via VFIO device, e.g. to aid in debugging if the test fails. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: David Matlack <dmatlack@google.com> Co-developed-by: Josh Hilke <jrhilke@google.com> Signed-off-by: Josh Hilke <jrhilke@google.com> [sean: massage changelog] Link: https://patch.msgid.link/20260626213534.3866178-9-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>