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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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28
hypervisor/include/common/hypercall.h
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@@ -333,6 +333,34 @@ int32_t hcall_assign_mmiodev(struct acrn_vm *vm, struct acrn_vm *target_vm, uint
*/
int32_t hcall_deassign_mmiodev(struct acrn_vm *vm, struct acrn_vm *target_vm, uint64_t param1, uint64_t param2);
/**
* @brief Create an emulated device in hypervisor.
*
* @param vm Pointer to VM data structure
* @param target_vm Pointer to target VM data structure
* @param param1 not used
* @param param2 guest physical address. This gpa points to data structure of
* acrn_emul_dev including information about PCI or legacy devices
*
* @pre Pointer vm shall point to SOS_VM
* @return 0 on success, non-zero on error.
*/
int32_t hcall_create_vdev(struct acrn_vm *vm, struct acrn_vm *target_vm, uint64_t param1, uint64_t param2);
/**
* @brief Destroy an emulated device in hypervisor.
*
* @param vm Pointer to VM data structure
* @param target_vm Pointer to target VM data structure
* @param param1 not used
* @param param2 guest physical address. This gpa points to data structure of
* acrn_emul_dev including information about PCI or legacy devices
*
* @pre Pointer vm shall point to SOS_VM
* @return 0 on success, non-zero on error.
*/
int32_t hcall_destroy_vdev(struct acrn_vm *vm, struct acrn_vm *target_vm, uint64_t param1, uint64_t param2);
/**
* @brief Set interrupt mapping info of ptdev.
*