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hv: make hypercall HC_CREATE_VCPU empty

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Now, we create vcpus while VM being created in hypervisor. The
create vcpu hypercall will not be used any more. For compatbility,
keep the hypercall HC_CREATE_VCPU do nothing.

v4: Don't remove HC_CREATE_VCPU hypercall, let it do nothing.

Tracked-On: #3663
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
This commit is contained in:
Shuo A Liu
2019-05-23 15:27:35 +08:00
committed by ACRN System Integration
parent 0ea12a45d4
commit f4ce9cc4a2
4 changed files with 2 additions and 63 deletions
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38
hypervisor/common/hypercall.c
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@@ -265,44 +265,6 @@ int32_t hcall_pause_vm(uint16_t vmid)
return ret;
}
/**
* @brief create vcpu
*
* Create a vcpu based on parameter for a VM, it will allocate vcpu from
* freed physical cpus, if there is no available pcpu, the function will
* return -1.
*
* @param vm Pointer to VM data structure
* @param vmid ID of the VM
* @param param guest physical address. This gpa points to
* struct acrn_create_vcpu
*
* @pre Pointer vm shall point to SOS_VM
* @return 0 on success, non-zero on error.
*/
int32_t hcall_create_vcpu(struct acrn_vm *vm, uint16_t vmid, uint64_t param)
{
int32_t ret = -1;
uint16_t pcpu_id;
struct acrn_create_vcpu cv;
struct acrn_vm *target_vm = get_vm_from_vmid(vmid);
if (!is_poweroff_vm(target_vm) && is_postlaunched_vm(target_vm) && (param != 0U)) {
if (copy_from_gpa(vm, &cv, param, sizeof(cv)) != 0) {
pr_err("%s: Unable copy param to vm\n", __func__);
} else {
pcpu_id = allocate_pcpu();
if (pcpu_id == INVALID_CPU_ID) {
pr_err("%s: No physical available\n", __func__);
} else {
ret = prepare_vcpu(target_vm, pcpu_id);
}
}
}
return ret;
}
/**
* @brief reset virtual machine
*