mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-06-01 11:55:25 +00:00
5e989f13c6
Make the SRIOV-Capable device invisible from SOS if there is
no room for its all virtual functions.
v2: fix a issue that if a PF has been dropped, the subsequent PF
will be dropped too even there is room for its VFs.
Tracked-On: #4433
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
81 lines
1.7 KiB
C
81 lines
1.7 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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#include <pci_dev.h>
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#include <vpci.h>
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struct acrn_vm_pci_dev_config sos_pci_devs[CONFIG_MAX_PCI_DEV_NUM] = {
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{
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.emu_type = PCI_DEV_TYPE_HVEMUL,
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.vbdf.bits = {.b = 0x00U, .d = 0x00U, .f = 0x00U},
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.vdev_ops = &vhostbridge_ops,
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},
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};
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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 init_one_dev_config(struct pci_pdev *pdev)
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{
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uint16_t vmid;
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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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if (!is_allocated_to_prelaunched_vm(pdev)) {
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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 != SOS_VM) {
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continue;
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}
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dev_config = &vm_config->pci_devs[vm_config->pci_dev_num];
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dev_config->emu_type = PCI_DEV_TYPE_PTDEV;
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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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vm_config->pci_dev_num++;
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}
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}
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}
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