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hv: add BAR GPA for vmsix over msi in pre-launched vm

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In pre-launched VM the GPA of vmsix BAR which is used for vmsix
over msi is calculated/allocated by acrn-config tool. The GPA
needs to be assigned to vdev when vdev is initialized. The
assignment is only needed for pre-launched VM. For SOS kernel
will reprogram the Bar base when startup. For post-launched VM
the Bar GPA will be assigned by device model via hypercall.

Tracked-On: #5316
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Jian Jun Chen 2020-10-29 08:52:55 +08:00 committed by wenlingz
parent 182620535b
commit ac8e0d6d10
1 changed files with 5 additions and 2 deletions
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7
hypervisor/dm/vpci/vmsix_on_msi.c
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@ -117,9 +117,12 @@ void init_vmsix_on_msi(struct pci_vdev *vdev)
* - For Service VM: when first time init, it is programmed as 0, then OS will program
* the value later.
* - For Post-launched VM: The GPA is assigned by device model.
* - For Pre-launched VM: Not supported yet.
* - For Pre-launched VM: The GPA is assigned by acrn-config tool.
*/
pci_vdev_write_vbar(vdev, i, (uint32_t)vdev->vbars[i].base_gpa);
if (is_prelaunched_vm(vpci2vm(vdev->vpci))) {
vdev->vbars[i].base_gpa = vdev->pci_dev_config->vbar_base[i];
pci_vdev_write_vbar(vdev, i, (uint32_t)vdev->vbars[i].base_gpa);
}
}
}
}