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HV: Introduce a new API is_rt_vm

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This patch checks if the GUEST_FLAG_RT is set when GUEST_FLAG_LAPIC_PASSTHROUGH is set.
If GUEST_FLAG_RT is not set while GUEST_FLAG_LAPIC_PASSTHROUGH is set, we will refuse
to boot the VM.

Meanwhile, this patch introduces a new API is_rt_vm.

Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Kaige Fu
2019-03-27 14:47:49 +00:00
committed by ACRN System Integration
parent 2e4d7eb527
commit ed286e3239
5 changed files with 36 additions and 12 deletions
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27
hypervisor/common/hypercall.c
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@@ -136,19 +136,26 @@ int32_t hcall_create_vm(struct acrn_vm *vm, uint64_t param)
vm_config->guest_flags |= cv.vm_flag;
(void)memcpy_s(&vm_config->GUID[0], 16U, &cv.GUID[0], 16U);
ret = create_vm(vm_id, vm_config, &target_vm);
if (ret != 0) {
dev_dbg(ACRN_DBG_HYCALL, "HCALL: Create VM failed");
cv.vmid = ACRN_INVALID_VMID;
/* GUEST_FLAG_RT must be set if we have GUEST_FLAG_LAPIC_PASSTHROUGH set in guest_flags */
if (((vm_config->guest_flags & GUEST_FLAG_LAPIC_PASSTHROUGH) != 0U)
&& ((vm_config->guest_flags & GUEST_FLAG_RT) == 0U)) {
pr_err("Wrong guest flags 0x%llx\n", vm_config->guest_flags);
ret = -1;
} else {
cv.vmid = target_vm->vm_id;
ret = 0;
}
ret = create_vm(vm_id, vm_config, &target_vm);
if (ret != 0) {
dev_dbg(ACRN_DBG_HYCALL, "HCALL: Create VM failed");
cv.vmid = ACRN_INVALID_VMID;
ret = -1;
} else {
cv.vmid = target_vm->vm_id;
ret = 0;
}
if (copy_to_gpa(vm, &cv.vmid, param, sizeof(cv.vmid)) != 0) {
pr_err("%s: Unable copy param to vm\n", __func__);
ret = -1;
if (copy_to_gpa(vm, &cv.vmid, param, sizeof(cv.vmid)) != 0) {
pr_err("%s: Unable copy param to vm\n", __func__);
ret = -1;
}
}
}
} else {