Hi Anthony,
On 2024/7/2 11:47, Chen, Jiqian wrote:
> On 2024/7/1 15:32, Jan Beulich wrote:
>> On 30.06.2024 14:33, Jiqian Chen wrote:
>>> --- a/tools/libs/ctrl/xc_physdev.c
>>> +++ b/tools/libs/ctrl/xc_physdev.c
>>> @@ -111,3 +111,38 @@ int xc_physdev_unmap_pirq(xc_interface *xch,
>>> return
On 2024/7/1 15:32, Jan Beulich wrote:
> On 30.06.2024 14:33, Jiqian Chen wrote:
>> --- a/tools/libs/ctrl/xc_physdev.c
>> +++ b/tools/libs/ctrl/xc_physdev.c
>> @@ -111,3 +111,38 @@ int xc_physdev_unmap_pirq(xc_interface *xch,
>> return rc;
>> }
>>
>> +int xc_physdev_gsi_from_pcidev(xc_interf
On 30.06.2024 14:33, Jiqian Chen wrote:
> --- a/tools/libs/ctrl/xc_physdev.c
> +++ b/tools/libs/ctrl/xc_physdev.c
> @@ -111,3 +111,38 @@ int xc_physdev_unmap_pirq(xc_interface *xch,
> return rc;
> }
>
> +int xc_physdev_gsi_from_pcidev(xc_interface *xch, uint32_t sbdf)
> +{
> +int rc = -
When passthrough a device to domU, QEMU and xl tools use its 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 the gsi number is got
from file /sys/bus/pci/devices//irq, that is wrong, because
irq is not equal wit
