freebsd-dev/sys/x86
Elliott Mitchell 49ca3167b7 xen/intr: add check for intr_register_source() errors
While unusual, intr_register_source() can return failure.  A likely
cause might be another device grabbing from Xen's interrupt range.
This should NOT happen, but could happen due to a bug.  As such check
for this and fail if it occurs.

This theoretical situation also effects xen_intr_find_unused_isrc().
There, .is_pic must be tested to ensure such an intrusion doesn't cause
misbehavior.

Reviewed by: royger
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D31995
2023-03-29 09:51:41 +02:00
..
acpica amd64/efi: Stop falling back to hints for RSDP 2022-07-02 08:02:12 -06:00
bios x86: Remove unused devclass arguments to DRIVER_MODULE. 2022-05-06 15:46:58 -07:00
conf Complete retire cp(4) 2022-12-14 11:38:55 +08:00
cpufreq cpufreq: Remove unused devclass arguments to DRIVER_MODULE. 2022-05-06 15:39:29 -07:00
include amd64: reduce header pollution in _stdint.h 2023-03-22 16:23:57 +00:00
iommu kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers. 2022-09-22 15:09:19 -07:00
isa atrtc: expose power loss as sysctl 2023-02-02 08:25:08 +01:00
linux linux(4): Cleanup includes under x86/linux 2023-02-14 17:46:33 +03:00
pci pci: expose intel_graphics_stolen as sysctl 2023-03-27 11:40:49 +02:00
x86 x86: nexus code tidy-up 2023-03-20 17:35:47 -03:00
xen xen/intr: add check for intr_register_source() errors 2023-03-29 09:51:41 +02:00