mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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1bb15c64a6
- move sanitize_vm_config() from vm.c to vm_config.c; - move get_vm_config() from vm.h to vm_config.h; Tracked-On: #2291 Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <vm_config.h>
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#include <cpu.h>
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#include <errno.h>
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#include <acrn_common.h>
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/**
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* @pre vm_config != NULL
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*/
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int32_t sanitize_vm_config(void)
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{
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int32_t ret = 0;
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uint16_t vm_id;
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uint64_t sos_pcpu_bitmap, pre_launch_pcpu_bitmap;
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struct acrn_vm_config *vm_config;
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sos_pcpu_bitmap = (uint64_t)((((uint64_t)1U) << get_pcpu_nums()) - 1U);
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pre_launch_pcpu_bitmap = 0U;
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/* All physical CPUs except ocuppied by Pre-launched VMs are all
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* belong to SOS_VM. i.e. The pcpu_bitmap of a SOS_VM is decided
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* by pcpu_bitmap status in PRE_LAUNCHED_VMs.
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* We need to setup a rule, that the vm_configs[] array should follow
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* the order of PRE_LAUNCHED_VM first, and then SOS_VM.
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*/
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for (vm_id = 0U; vm_id < CONFIG_MAX_VM_NUM; vm_id++) {
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vm_config = get_vm_config(vm_id);
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switch (vm_config->type) {
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case PRE_LAUNCHED_VM:
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if (vm_config->pcpu_bitmap == 0U) {
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ret = -EINVAL;
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} else {
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pre_launch_pcpu_bitmap |= vm_config->pcpu_bitmap;
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}
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break;
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case SOS_VM:
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/* Deduct pcpus of PRE_LAUNCHED_VMs */
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sos_pcpu_bitmap ^= pre_launch_pcpu_bitmap;
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if ((sos_pcpu_bitmap == 0U) || ((vm_config->guest_flags & LAPIC_PASSTHROUGH) != 0U)) {
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ret = -EINVAL;
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} else {
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vm_config->pcpu_bitmap = sos_pcpu_bitmap;
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}
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break;
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case NORMAL_VM:
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ret = -EINVAL;
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break;
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default:
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/* Nothing to do for a UNDEFINED_VM, break directly. */
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break;
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}
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if (ret != 0) {
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break;
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}
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}
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return ret;
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}
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