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hv: vpci_cleanup for VMs of type POST_LAUNCHED_VM

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ACRN cleans up the IOMMU domain and other data structures that
represents the state of device assigment to POST_LAUNCHED_VM. This is
with the help of hypercalls from SOS DM. Under scenarios where DM
execution can get terminated abruptly or due to bugs in DM, hypercalls
responsible for cleaning up ACRN cannot happen. This leaves ACRN
device representation/resource assignment in an incorrect state.
This patch cleans up the IOMMU resource and other data structures
upon shutdown of POST_LAUNCHED_VM.

Tracked-On: #2700
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Sainath Grandhi
2019-04-28 22:47:32 -07:00
committed by ACRN System Integration
parent 7a78e70eb3
commit 53b2bd5811
3 changed files with 53 additions and 1 deletions
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hypervisor/common/hypercall.c
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@@ -991,6 +991,7 @@ hcall_reset_ptdev_intr_info(struct acrn_vm *vm, uint16_t vmid, uint64_t param)
if (copy_from_gpa(vm, &irq, param, sizeof(irq)) != 0) {
pr_err("%s: Unable copy param to vm\n", __func__);
} else if (irq.type == IRQ_INTX) {
vpci_reset_ptdev_intr_info(target_vm, irq.virt_bdf, irq.phys_bdf);
ptirq_remove_intx_remapping(target_vm,
irq.is.intx.virt_pin,
irq.is.intx.pic_pin);