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https://github.com/projectacrn/acrn-hypervisor.git
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eb21f205e4
Align SOS pci device configure with pre-launched VM and filter pre-launched VM's PCI PT device from SOS pci device configure. Tracked-On: #3475 Signed-off-by: Li, Fei1 <fei1.li@intel.com>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/*
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* Copyright (C) 2019 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 <pci.h>
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static uint16_t pcidev_config_num = 0U;
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static struct acrn_vm_pci_dev_config pcidev_config[CONFIG_MAX_PCI_DEV_NUM] = {};
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/*
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* @pre pdev != NULL;
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*/
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static bool is_allocated_to_prelaunched_vm(struct pci_pdev *pdev)
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{
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bool found = false;
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uint16_t vmid;
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uint32_t pci_idx;
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struct acrn_vm_config *vm_config;
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struct acrn_vm_pci_dev_config *dev_config;
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for (vmid = 0U; vmid < CONFIG_MAX_VM_NUM; vmid++) {
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vm_config = get_vm_config(vmid);
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if (vm_config->load_order != PRE_LAUNCHED_VM) {
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continue;
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}
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for (pci_idx = 0U; pci_idx < vm_config->pci_dev_num; pci_idx++) {
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dev_config = &vm_config->pci_devs[pci_idx];
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if ((dev_config->emu_type == PCI_DEV_TYPE_PTDEV) &&
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bdf_is_equal(&dev_config->pbdf, &pdev->bdf)) {
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dev_config->pdev = pdev;
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found = true;
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break;
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}
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}
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if (found) {
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break;
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}
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}
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return found;
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}
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/*
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* @pre: pdev != NULL
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*/
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void fill_pci_dev_config(struct pci_pdev *pdev)
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{
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struct acrn_vm_pci_dev_config *dev_config;
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if (!is_allocated_to_prelaunched_vm(pdev)) {
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dev_config = &pcidev_config[pcidev_config_num];
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dev_config->emu_type = (pdev->bdf.value != HOST_BRIDGE_BDF) ? PCI_DEV_TYPE_PTDEV : PCI_DEV_TYPE_HVEMUL;
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dev_config->vbdf.value = pdev->bdf.value;
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dev_config->pbdf.value = pdev->bdf.value;
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dev_config->pdev = pdev;
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pcidev_config_num++;
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}
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}
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/*
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* @pre vm_config != NULL
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*/
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void initialize_sos_pci_dev_config(struct acrn_vm_config *vm_config)
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{
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vm_config->pci_dev_num = pcidev_config_num;
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vm_config->pci_devs = pcidev_config;
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}
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