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hv: implement SRIOV VF_BAR initialization

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All SRIOV VF physical devices don't have bars in configuration space,
they are from the VF associated PF's VF_BAR registers of SRIOV capability.

Adding a vbars data structure in pci_cap_sriov data structure to store
SRIOV VF_BAR information, so that each VF bars can be initialized directly
through the vbars instead multiple accessing of the PF VF_BAR registers.

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 21:49:25 +08:00
committed by wenlingz
parent 298ef2f5c4
commit abbdef4f5d
6 changed files with 68 additions and 20 deletions
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hypervisor/include/hw/pci.h
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@@ -120,6 +120,7 @@
#define PCIR_SRIOV_NUMVFS 0x10U
#define PCIR_SRIOV_FST_VF_OFF 0x14U
#define PCIR_SRIOV_VF_STRIDE 0x16U
#define PCIR_SRIOV_VF_BAR_OFF 0x24U
#define PCIM_SRIOV_VF_ENABLE 0x1U
/* PCI Message Signalled Interrupts (MSI) */