On 14.07.2025 11:00, David Woodhouse wrote:
From: David Woodhouse <d...@amazon.co.uk>FreeBSD does both, and this appears to be perfectly valid. The VT-d spec even talks about the ordering (the status write should be done first, unsurprisingly). We certainly shouldn't assert() and abort QEMU if the guest asks for both. Fixes: ed7b8fbcfb88 ("intel-iommu: add supports for queued invalidation interface") Closes: https://gitlab.com/qemu-project/qemu/-/issues/3028 Signed-off-by: David Woodhouse <d...@amazon.co.uk> --- v2: • Only generate the interrupt once. • Spaces around bitwise OR. This stops QEMU crashing, but I still can't get FreeBSD to boot and use CPUs with APIC ID > 255 using *either* Intel or AMD IOMMU with interrupt remapping, or the native 15-bit APIC ID enlightenment. cf. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288122 hw/i386/intel_iommu.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
This looks like a qemu-stable material (for 10.0). Please let me know if it is not. Thanks, /mjt
