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HV: modularization vm config code

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- 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>
This commit is contained in:
Victor Sun
2019-02-28 14:20:34 +08:00
committed by wenlingz
parent 35dfadc98e
commit 1bb15c64a6
5 changed files with 142 additions and 133 deletions
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61
hypervisor/arch/x86/configs/vm_config.c Normal file
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/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <vm_config.h>
#include <cpu.h>
#include <errno.h>
#include <acrn_common.h>
/**
* @pre vm_config != NULL
*/
int32_t sanitize_vm_config(void)
{
int32_t ret = 0;
uint16_t vm_id;
uint64_t sos_pcpu_bitmap, pre_launch_pcpu_bitmap;
struct acrn_vm_config *vm_config;
sos_pcpu_bitmap = (uint64_t)((((uint64_t)1U) << get_pcpu_nums()) - 1U);
pre_launch_pcpu_bitmap = 0U;
/* All physical CPUs except ocuppied by Pre-launched VMs are all
* belong to SOS_VM. i.e. The pcpu_bitmap of a SOS_VM is decided
* by pcpu_bitmap status in PRE_LAUNCHED_VMs.
* We need to setup a rule, that the vm_configs[] array should follow
* the order of PRE_LAUNCHED_VM first, and then SOS_VM.
*/
for (vm_id = 0U; vm_id < CONFIG_MAX_VM_NUM; vm_id++) {
vm_config = get_vm_config(vm_id);
switch (vm_config->type) {
case PRE_LAUNCHED_VM:
if (vm_config->pcpu_bitmap == 0U) {
ret = -EINVAL;
} else {
pre_launch_pcpu_bitmap |= vm_config->pcpu_bitmap;
}
break;
case SOS_VM:
/* Deduct pcpus of PRE_LAUNCHED_VMs */
sos_pcpu_bitmap ^= pre_launch_pcpu_bitmap;
if ((sos_pcpu_bitmap == 0U) || ((vm_config->guest_flags & LAPIC_PASSTHROUGH) != 0U)) {
ret = -EINVAL;
} else {
vm_config->pcpu_bitmap = sos_pcpu_bitmap;
}
break;
case NORMAL_VM:
ret = -EINVAL;
break;
default:
/* Nothing to do for a UNDEFINED_VM, break directly. */
break;
}
if (ret != 0) {
break;
}
}
return ret;
}