Jiqian Chen b93e5981d2 tools: Add new function to get gsi from dev ...

On PVH dom0, when passthrough a device to domU, QEMU and xl tools
want to use gsi number to do pirq mapping, see QEMU code
xen_pt_realize->xc_physdev_map_pirq, and xl code
pci_add_dm_done->xc_physdev_map_pirq, but in current codes, the gsi
number is got from file /sys/bus/pci/devices/<sbdf>/irq, that is
wrong, because irq is not equal with gsi, they are in different
spaces, so pirq mapping fails.

And in current codes, there is no method to get gsi for userspace.
For above purpose, add new function to get gsi, and the
corresponding ioctl is implemented on linux kernel side.

Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Chen Jiqian <Jiqian.Chen@amd.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>

2024-09-30 10:13:46 +02:00

..

FreeBSD

libs/devicemodel: add dm_op support for FreeBSD

2021-01-05 12:33:55 +00:00

Linux

tools: Add new function to get gsi from dev

2024-09-30 10:13:46 +02:00

MiniOS

…

NetBSD

…

NetBSDRump

…

SunOS

…