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hv: check if there is enough room for all SRIOV VFs.

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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>
This commit is contained in:
Yuan Liu
2020-02-17 17:04:29 +08:00
committed by wenlingz
parent ac1477956c
commit 5e989f13c6
4 changed files with 51 additions and 10 deletions
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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];
struct pci_pdev;
void fill_pci_dev_config(struct pci_pdev *pdev);
void init_one_dev_config(struct pci_pdev *pdev);
#endif /* PCI_DEV_H_ */

1
hypervisor/include/hw/pci.h
View File

@@ -114,6 +114,7 @@
/* SRIOV Definitions */
#define PCI_SRIOV_CAP_LEN 0x40U
#define PCIR_SRIOV_TOTAL_VFS 0xEU
/* PCI Message Signalled Interrupts (MSI) */
#define PCIR_MSI_CTRL 0x02U