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https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-08-12 05:22:33 +00:00
HV:fix vcpu more than one return entry
ACRN coding guideline requires function shall have only one return entry. Fix it. Tracked-On: #861 Signed-off-by: Huihuang Shi <huihuang.shi@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Huihuang Shi
Eddie Dong
parent
198e01716a
commit
74b788988d
@ -349,71 +349,73 @@ int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn
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* vm->hw.created_vcpus++;
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*/
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vcpu_id = atomic_xadd16(&vm->hw.created_vcpus, 1U);
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if (vcpu_id >= CONFIG_MAX_VCPUS_PER_VM) {
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vm->hw.created_vcpus--;
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if (vcpu_id < CONFIG_MAX_VCPUS_PER_VM) {
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/* Allocate memory for VCPU */
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vcpu = &(vm->hw.vcpu_array[vcpu_id]);
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(void)memset((void *)vcpu, 0U, sizeof(struct acrn_vcpu));
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/* Initialize CPU ID for this VCPU */
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vcpu->vcpu_id = vcpu_id;
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vcpu->pcpu_id = pcpu_id;
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per_cpu(ever_run_vcpu, pcpu_id) = vcpu;
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/* Initialize the parent VM reference */
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vcpu->vm = vm;
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/* Initialize the virtual ID for this VCPU */
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/* FIXME:
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* We have assumption that we always destroys vcpus in one
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* shot (like when vm is destroyed). If we need to support
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* specific vcpu destroy on fly, this vcpu_id assignment
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* needs revise.
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*/
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per_cpu(vcpu, pcpu_id) = vcpu;
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pr_info("PCPU%d is working as VM%d VCPU%d, Role: %s",
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vcpu->pcpu_id, vcpu->vm->vm_id, vcpu->vcpu_id,
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is_vcpu_bsp(vcpu) ? "PRIMARY" : "SECONDARY");
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/*
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* If the logical processor is in VMX non-root operation and
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* the "enable VPID" VM-execution control is 1, the current VPID
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* is the value of the VPID VM-execution control field in the VMCS.
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*
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* This assignment guarantees a unique non-zero per vcpu vpid in runtime.
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*/
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vcpu->arch.vpid = 1U + (vm->vm_id * CONFIG_MAX_VCPUS_PER_VM) + vcpu->vcpu_id;
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/* Initialize exception field in VCPU context */
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vcpu->arch.exception_info.exception = VECTOR_INVALID;
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/* Initialize cur context */
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vcpu->arch.cur_context = NORMAL_WORLD;
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/* Create per vcpu vlapic */
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vlapic_create(vcpu);
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if (!vm_hide_mtrr(vm)) {
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init_vmtrr(vcpu);
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}
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/* Populate the return handle */
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*rtn_vcpu_handle = vcpu;
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vcpu->launched = false;
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vcpu->running = 0U;
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vcpu->arch.nr_sipi = 0U;
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vcpu->state = VCPU_INIT;
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reset_vcpu_regs(vcpu);
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(void)memset((void *)&vcpu->req, 0U, sizeof(struct io_request));
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ret = 0;
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} else {
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vm->hw.created_vcpus -= 1U;
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pr_err("%s, vcpu id is invalid!\n", __func__);
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return -EINVAL;
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}
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/* Allocate memory for VCPU */
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vcpu = &(vm->hw.vcpu_array[vcpu_id]);
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(void)memset((void *)vcpu, 0U, sizeof(struct acrn_vcpu));
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/* Initialize CPU ID for this VCPU */
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vcpu->vcpu_id = vcpu_id;
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vcpu->pcpu_id = pcpu_id;
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per_cpu(ever_run_vcpu, pcpu_id) = vcpu;
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/* Initialize the parent VM reference */
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vcpu->vm = vm;
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/* Initialize the virtual ID for this VCPU */
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/* FIXME:
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* We have assumption that we always destroys vcpus in one
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* shot (like when vm is destroyed). If we need to support
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* specific vcpu destroy on fly, this vcpu_id assignment
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* needs revise.
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*/
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per_cpu(vcpu, pcpu_id) = vcpu;
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pr_info("PCPU%d is working as VM%d VCPU%d, Role: %s",
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vcpu->pcpu_id, vcpu->vm->vm_id, vcpu->vcpu_id,
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is_vcpu_bsp(vcpu) ? "PRIMARY" : "SECONDARY");
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/*
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* If the logical processor is in VMX non-root operation and
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* the "enable VPID" VM-execution control is 1, the current VPID
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* is the value of the VPID VM-execution control field in the VMCS.
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*
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* This assignment guarantees a unique non-zero per vcpu vpid in runtime.
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*/
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vcpu->arch.vpid = 1U + (vm->vm_id * CONFIG_MAX_VCPUS_PER_VM) + vcpu->vcpu_id;
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/* Initialize exception field in VCPU context */
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vcpu->arch.exception_info.exception = VECTOR_INVALID;
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/* Initialize cur context */
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vcpu->arch.cur_context = NORMAL_WORLD;
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/* Create per vcpu vlapic */
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vlapic_create(vcpu);
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if (!vm_hide_mtrr(vm)) {
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init_vmtrr(vcpu);
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ret = -EINVAL;
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}
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/* Populate the return handle */
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*rtn_vcpu_handle = vcpu;
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vcpu->launched = false;
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vcpu->running = 0;
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vcpu->arch.nr_sipi = 0;
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vcpu->state = VCPU_INIT;
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reset_vcpu_regs(vcpu);
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(void)memset(&vcpu->req, 0U, sizeof(struct io_request));
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return 0;
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return ret;
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}
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/*
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@ -561,31 +563,30 @@ void reset_vcpu(struct acrn_vcpu *vcpu)
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ASSERT(vcpu->state != VCPU_RUNNING,
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"reset vcpu when it's running");
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if (vcpu->state == VCPU_INIT)
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return;
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if (vcpu->state != VCPU_INIT) {
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vcpu->state = VCPU_INIT;
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vcpu->state = VCPU_INIT;
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vcpu->launched = false;
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vcpu->running = 0U;
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vcpu->arch.nr_sipi = 0U;
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vcpu->launched = false;
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vcpu->running = 0;
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vcpu->arch.nr_sipi = 0;
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vcpu->arch.exception_info.exception = VECTOR_INVALID;
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vcpu->arch.cur_context = NORMAL_WORLD;
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vcpu->arch.irq_window_enabled = false;
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vcpu->arch.inject_event_pending = false;
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(void)memset((void *)vcpu->arch.vmcs, 0U, PAGE_SIZE);
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vcpu->arch.exception_info.exception = VECTOR_INVALID;
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vcpu->arch.cur_context = NORMAL_WORLD;
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vcpu->arch.irq_window_enabled = false;
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vcpu->arch.inject_event_pending = false;
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(void)memset((void *)vcpu->arch.vmcs, 0U, PAGE_SIZE);
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for (i = 0; i < NR_WORLD; i++) {
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(void)memset((void *)(&vcpu->arch.contexts[i]), 0U,
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sizeof(struct run_context));
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}
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vcpu->arch.cur_context = NORMAL_WORLD;
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for (i = 0; i < NR_WORLD; i++) {
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(void)memset((void *)(&vcpu->arch.contexts[i]), 0U,
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sizeof(struct run_context));
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vlapic = vcpu_vlapic(vcpu);
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vlapic_reset(vlapic);
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reset_vcpu_regs(vcpu);
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}
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vcpu->arch.cur_context = NORMAL_WORLD;
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vlapic = vcpu_vlapic(vcpu);
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vlapic_reset(vlapic);
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reset_vcpu_regs(vcpu);
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}
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void pause_vcpu(struct acrn_vcpu *vcpu, enum vcpu_state new_state)
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@ -699,35 +700,33 @@ static uint64_t build_stack_frame(struct acrn_vcpu *vcpu)
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/* help function for vcpu create */
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int32_t prepare_vcpu(struct acrn_vm *vm, uint16_t pcpu_id)
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{
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int32_t ret = 0;
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int32_t ret;
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struct acrn_vcpu *vcpu = NULL;
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char thread_name[16];
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uint64_t orig_val, final_val;
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struct acrn_vm_config *conf;
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ret = create_vcpu(pcpu_id, vm, &vcpu);
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if (ret != 0) {
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return ret;
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if (ret == 0) {
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set_pcpu_used(pcpu_id);
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/* Update CLOS for this CPU */
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if (cat_cap_info.enabled) {
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conf = get_vm_config(vm->vm_id);
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orig_val = msr_read(MSR_IA32_PQR_ASSOC);
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final_val = (orig_val & 0xffffffffUL) | (((uint64_t)conf->clos) << 32UL);
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msr_write_pcpu(MSR_IA32_PQR_ASSOC, final_val, pcpu_id);
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}
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INIT_LIST_HEAD(&vcpu->sched_obj.run_list);
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snprintf(thread_name, 16U, "vm%hu:vcpu%hu", vm->vm_id, vcpu->vcpu_id);
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(void)strncpy_s(vcpu->sched_obj.name, 16U, thread_name, 16U);
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vcpu->sched_obj.thread = vcpu_thread;
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vcpu->sched_obj.host_sp = build_stack_frame(vcpu);
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vcpu->sched_obj.prepare_switch_out = context_switch_out;
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vcpu->sched_obj.prepare_switch_in = context_switch_in;
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}
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set_pcpu_used(pcpu_id);
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/* Update CLOS for this CPU */
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if (cat_cap_info.enabled) {
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conf = get_vm_config(vm->vm_id);
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orig_val = msr_read(MSR_IA32_PQR_ASSOC);
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final_val = (orig_val & 0xffffffffUL) | (((uint64_t)conf->clos) << 32UL);
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msr_write_pcpu(MSR_IA32_PQR_ASSOC, final_val, pcpu_id);
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}
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INIT_LIST_HEAD(&vcpu->sched_obj.run_list);
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snprintf(thread_name, 16U, "vm%hu:vcpu%hu", vm->vm_id, vcpu->vcpu_id);
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(void)strncpy_s(vcpu->sched_obj.name, 16U, thread_name, 16U);
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vcpu->sched_obj.thread = vcpu_thread;
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vcpu->sched_obj.host_sp = build_stack_frame(vcpu);
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vcpu->sched_obj.prepare_switch_out = context_switch_out;
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vcpu->sched_obj.prepare_switch_in = context_switch_in;
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return ret;
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}
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