Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-23 Thread Chen, Jiqian
On 2024/9/23 16:04, Juergen Gross wrote: > On 23.09.24 09:58, Juergen Gross wrote: >> On 23.09.24 07:49, Chen, Jiqian wrote: >>> On 2024/9/21 05:17, Stefano Stabellini wrote: On Fri, 20 Sep 2024, Chen, Jiqian wrote: > On 2024/9/19 06:49, Stefano Stabellini wrote: >> On Thu, 12 Sep 2024

Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-23 Thread Juergen Gross
On 23.09.24 09:58, Juergen Gross wrote: On 23.09.24 07:49, Chen, Jiqian wrote: On 2024/9/21 05:17, Stefano Stabellini wrote: On Fri, 20 Sep 2024, Chen, Jiqian wrote: On 2024/9/19 06:49, Stefano Stabellini wrote: On Thu, 12 Sep 2024, Jiqian Chen wrote: On PVH dom0, when passthrough a device t

Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-23 Thread Juergen Gross
On 23.09.24 07:49, Chen, Jiqian wrote: On 2024/9/21 05:17, Stefano Stabellini wrote: On Fri, 20 Sep 2024, Chen, Jiqian wrote: On 2024/9/19 06:49, Stefano Stabellini wrote: On Thu, 12 Sep 2024, Jiqian Chen wrote: On PVH dom0, when passthrough a device to domU, QEMU and xl tools want to use gsi

Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-22 Thread Chen, Jiqian
On 2024/9/21 05:17, Stefano Stabellini wrote: > On Fri, 20 Sep 2024, Chen, Jiqian wrote: >> On 2024/9/19 06:49, Stefano Stabellini wrote: >>> On Thu, 12 Sep 2024, Jiqian Chen wrote: On PVH dom0, when passthrough a device to domU, QEMU and xl tools want to use gsi number to do pirq mapping

Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-20 Thread Chen, Jiqian
On 2024/9/19 06:49, Stefano Stabellini wrote: > On Thu, 12 Sep 2024, Jiqian Chen wrote: >> 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

Re: [KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-18 Thread Stefano Stabellini
On Thu, 12 Sep 2024, Jiqian Chen wrote: > 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

[KERNEL PATCH v9 3/3] xen/privcmd: Add new syscall to get gsi from dev

2024-09-12 Thread Jiqian Chen
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//irq, that is