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hv: refine init_one_dev_config

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The init_one_dev_config is used to initialize a acrn_vm_pci_dev_config
SRIOV needs a explicit acrn_vm_pci_dev_config to create a VF vdev,so
refine it to return acrn_vm_pci_dev_config.

Tracked-On: #4433

Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yuan Liu 2020-02-28 23:02:12 +08:00 committed by wenlingz
parent 87e7d79112
commit 320ed6c238
2 changed files with 13 additions and 4 deletions
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15
hypervisor/arch/x86/configs/pci_dev.c
View File

@ -54,13 +54,21 @@ static bool is_allocated_to_prelaunched_vm(struct pci_pdev *pdev)
/* /*
* @pre: pdev != NULL * @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;
*/ */
void init_one_dev_config(struct pci_pdev *pdev) struct acrn_vm_pci_dev_config *init_one_dev_config(struct pci_pdev *pdev)
{ {
uint16_t vmid; uint16_t vmid;
struct acrn_vm_config *vm_config; struct acrn_vm_config *vm_config;
struct acrn_vm_pci_dev_config *dev_config; struct acrn_vm_pci_dev_config *dev_config = NULL;
if (!is_allocated_to_prelaunched_vm(pdev)) { if (!is_allocated_to_prelaunched_vm(pdev)) {
for (vmid = 0U; vmid < CONFIG_MAX_VM_NUM; vmid++) { for (vmid = 0U; vmid < CONFIG_MAX_VM_NUM; vmid++) {
@ -77,4 +85,5 @@ void init_one_dev_config(struct pci_pdev *pdev)
vm_config->pci_dev_num++; vm_config->pci_dev_num++;
} }
} }
return dev_config;
} }

2
hypervisor/include/arch/x86/pci_dev.h
View File

@ -14,6 +14,6 @@
extern struct acrn_vm_pci_dev_config sos_pci_devs[CONFIG_MAX_PCI_DEV_NUM]; extern struct acrn_vm_pci_dev_config sos_pci_devs[CONFIG_MAX_PCI_DEV_NUM];
struct pci_pdev; struct pci_pdev;
void init_one_dev_config(struct pci_pdev *pdev); struct acrn_vm_pci_dev_config *init_one_dev_config(struct pci_pdev *pdev);
#endif /* PCI_DEV_H_ */ #endif /* PCI_DEV_H_ */