acrn-hypervisor/hypervisor/arch/x86/configs/pci_dev.c
Liu Long 92b7d6a9a3 ACRN: hv: Terminology modification in hv code
Rename sos_vm to service_vm.
rename sos_vmid to service_vmid.
rename sos_vm_ptr to service_vm_ptr.
rename get_sos_vm to get_service_vm.
rename sos_vm_gpa to service_vm_gpa.
rename sos_vm_e820 to service_vm_e820.
rename sos_efi_info to service_vm_efi_info.
rename sos_vm_config to service_vm_config.
rename sos_vm_hpa2gpa to service_vm_hpa2gpa.
rename vdev_in_sos to vdev_in_service_vm.
rename create_sos_vm_e820 to create_service_vm_e820.
rename sos_high64_max_ram to service_vm_high64_max_ram.
rename prepare_sos_vm_memmap to prepare_service_vm_memmap.
rename post_uos_sworld_memory to post_user_vm_sworld_memory
rename hcall_sos_offline_cpu to hcall_service_vm_offline_cpu.
rename filter_mem_from_sos_e820 to filter_mem_from_service_vm_e820.
rename create_sos_vm_efi_mmap_desc to create_service_vm_efi_mmap_desc.
rename HC_SOS_OFFLINE_CPU to HC_SERVICE_VM_OFFLINE_CPU.
rename SOS to Service VM in comments message.

Tracked-On: #6744
Signed-off-by: Liu Long <long.liu@linux.intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
2021-11-02 10:00:55 +08:00

90 lines
2.4 KiB
C

/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <asm/vm_config.h>
#include <pci.h>
#include <asm/pci_dev.h>
#include <vpci.h>
/*
* @pre pdev != NULL;
*/
static bool is_allocated_to_prelaunched_vm(struct pci_pdev *pdev)
{
bool found = false;
uint16_t vmid;
uint32_t pci_idx;
struct acrn_vm_config *vm_config;
struct acrn_vm_pci_dev_config *dev_config;
for (vmid = 0U; (vmid < CONFIG_MAX_VM_NUM) && !found; vmid++) {
vm_config = get_vm_config(vmid);
if (vm_config->load_order == PRE_LAUNCHED_VM) {
for (pci_idx = 0U; pci_idx < vm_config->pci_dev_num; pci_idx++) {
dev_config = &vm_config->pci_devs[pci_idx];
if ((dev_config->emu_type == PCI_DEV_TYPE_PTDEV) &&
bdf_is_equal(dev_config->pbdf, pdev->bdf)) {
dev_config->pdev = pdev;
found = true;
break;
}
}
}
}
return found;
}
/*
* @brief Initialize a acrn_vm_pci_dev_config structure
*
* Initialize a acrn_vm_pci_dev_config structure with a specified the pdev structure.
* A acrn_vm_pci_dev_config is used to store a PCI device configuration for a VM. The
* caller of the function init_one_dev_config should guarantee execution atomically.
*
* @pre pdev != NULL
*
* @return If there's a successfully initialized acrn_vm_pci_dev_config return it, otherwise return NULL;
*/
struct acrn_vm_pci_dev_config *init_one_dev_config(struct pci_pdev *pdev)
{
uint16_t vmid;
struct acrn_vm_config *vm_config;
struct acrn_vm_pci_dev_config *dev_config = NULL;
if (!is_allocated_to_prelaunched_vm(pdev)) {
for (vmid = 0U; vmid < CONFIG_MAX_VM_NUM; vmid++) {
vm_config = get_vm_config(vmid);
if (vm_config->load_order != SOS_VM) {
continue;
}
dev_config = &vm_config->pci_devs[vm_config->pci_dev_num];
if (is_hv_owned_pdev(pdev->bdf)) {
/* Service VM need to emulate the type1 pdevs owned by HV */
dev_config->emu_type = PCI_DEV_TYPE_SOSEMUL;
if (is_bridge(pdev)) {
dev_config->vdev_ops = &vpci_bridge_ops;
} else if (is_host_bridge(pdev)) {
dev_config->vdev_ops = &vhostbridge_ops;
} else {
/* May have type0 device, E.g. debug pci uart */
break;
}
} else {
dev_config->emu_type = PCI_DEV_TYPE_PTDEV;
}
dev_config->vbdf.value = pdev->bdf.value;
dev_config->pbdf.value = pdev->bdf.value;
dev_config->pdev = pdev;
vm_config->pci_dev_num++;
}
}
return dev_config;
}