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e35f27a525
The CLOS is initialized to 0 for each scenarios. User could modify this configuration in its vm_configurations.h; Tracked-On: #2291 Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>
126 lines
3.1 KiB
C
126 lines
3.1 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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#include <page.h>
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#include <logmsg.h>
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#include <cat.h>
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#include <vm_configurations.h>
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#define INIT_VM_CONFIG(idx) \
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{ \
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.type = VM##idx##_CONFIG_TYPE, \
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.name = VM##idx##_CONFIG_NAME, \
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.pcpu_bitmap = VM##idx##_CONFIG_PCPU_BITMAP, \
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.guest_flags = VM##idx##_CONFIG_FLAGS, \
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.clos = VM##idx##_CONFIG_CLOS, \
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.memory = { \
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.start_hpa = VM##idx##_CONFIG_MEM_START_HPA, \
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.size = VM##idx##_CONFIG_MEM_SIZE, \
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}, \
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.os_config = { \
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.name = VM##idx##_CONFIG_OS_NAME, \
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.bootargs = VM##idx##_CONFIG_OS_BOOTARGS, \
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}, \
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.vm_vuart = true, \
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.pci_ptdev_num = VM##idx##_CONFIG_PCI_PTDEV_NUM, \
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.pci_ptdevs = vm##idx##_pci_ptdevs, \
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}
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static struct acrn_vm_config vm_configs[CONFIG_MAX_VM_NUM] __aligned(PAGE_SIZE) = {
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#ifdef VM0_CONFIGURED
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INIT_VM_CONFIG(0),
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#endif
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#ifdef VM1_CONFIGURED
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INIT_VM_CONFIG(1),
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#endif
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#ifdef VM2_CONFIGURED
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INIT_VM_CONFIG(2),
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#endif
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#ifdef VM3_CONFIGURED
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INIT_VM_CONFIG(3),
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#endif
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};
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/*
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* @pre vm_id < CONFIG_MAX_VM_NUM
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*/
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struct acrn_vm_config *get_vm_config(uint16_t vm_id)
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{
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return &vm_configs[vm_id];
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}
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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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/* GUEST_FLAG_RT must be set if we have GUEST_FLAG_LAPIC_PASSTHROUGH set in guest_flags */
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} else if (((vm_config->guest_flags & GUEST_FLAG_LAPIC_PASSTHROUGH) != 0U)
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&& ((vm_config->guest_flags & GUEST_FLAG_RT) == 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 & GUEST_FLAG_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 ((vm_config->guest_flags & GUEST_FLAG_CLOS_REQUIRED) != 0U) {
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if (cat_cap_info.support && (vm_config->clos <= cat_cap_info.clos_max)) {
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cat_cap_info.enabled = true;
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} else {
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pr_err("%s set wrong CLOS or CAT is not supported\n", __func__);
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ret = -EINVAL;
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}
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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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