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hv: ptdev: refine look up MSI ptirq entry

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There's no need to look up MSI ptirq entry by virtual SID any more since the MSI
ptirq entry would be removed before the device is assigned to a VM.

Now the logic of MSI interrupt remap could simplify as:
1. Add the MSI interrupt remap first;
2. If step is already done, just do the remap part.

Tracked-On: #4550
Signed-off-by: Li Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong<eddie.dong@Intel.com>
Reviewed-by: Grandhi, Sainath <sainath.grandhi@intel.com>
This commit is contained in:
Li Fei1
2020-05-07 13:55:39 +08:00
committed by wenlingz
parent 27c6f1c007
commit 27a66acd0e
4 changed files with 24 additions and 53 deletions
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2
hypervisor/dm/vpci/vmsix.c
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@@ -264,7 +264,7 @@ void deinit_vmsix(struct pci_vdev *vdev)
{
if (has_msix_cap(vdev)) {
if (vdev->msix.table_count != 0U) {
ptirq_remove_msix_remapping(vpci2vm(vdev->vpci), vdev->bdf.value, vdev->msix.table_count);
ptirq_remove_msix_remapping(vpci2vm(vdev->vpci), vdev->pdev->bdf.value, vdev->msix.table_count);
(void)memset((void *)&vdev->msix, 0U, sizeof(struct pci_msix));
}
}