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hv: add new hypercalls to create and destroy an emulated device in hypervisor

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Add HC_CREATE_VDEV and HC_DESTROY_VDEV two hypercalls that are used to
create and destroy an emulated device(PCI device or legacy device) in hypervisor

v3: 1) change HC_CREATE_DEVICE and HC_DESTROY_DEVICE to HC_CREATE_VDEV
       and HC_DESTROY_VDEV
    2) refine code style

v4: 1) remove unnecessary parameter
    2) add VM state check for HC_CREATE_VDEV and HC_DESTROY hypercalls

Tracked-On: #4853

Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yuan Liu
2020-08-26 16:20:01 +08:00
committed by wenlingz
parent 52bb9d6983
commit 8a34cf03ca
4 changed files with 172 additions and 0 deletions
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4
hypervisor/arch/x86/guest/vmcall.c
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@@ -65,6 +65,10 @@ static const struct hc_dispatch hc_dispatch_table[] = {
.handler = hcall_assign_mmiodev},
[HC_IDX(HC_DEASSIGN_MMIODEV)] = {
.handler = hcall_deassign_mmiodev},
[HC_IDX(HC_CREATE_VDEV)] = {
.handler = hcall_create_vdev},
[HC_IDX(HC_DESTROY_VDEV)] = {
.handler = hcall_destroy_vdev},
[HC_IDX(HC_SET_PTDEV_INTR_INFO)] = {
.handler = hcall_set_ptdev_intr_info},
[HC_IDX(HC_RESET_PTDEV_INTR_INFO)] = {