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hv: PTM: Add virtual root port

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Add virtual root port that supports the most basic pci-e bridge and root port operations.

	- init_vroot_port(): init vroot_port's basic registers.

	- deinit_vroot_port(): reset vroot_port

	- read_vroot_port_cfg(): read from vroot_port's virtual config space.

	- write_vroot_port_cfg(): write to vroot_port's virtual config space.

Tracked-On: #5915
Signed-off-by: Rong Liu <rong.l.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Jason Chen <jason.cj.chen@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Rong Liu
2021-05-05 23:28:40 +00:00
committed by wenlingz
parent df64877c50
commit d57bf51c89
5 changed files with 97 additions and 0 deletions
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1
hypervisor/include/hw/pci.h
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@@ -109,6 +109,7 @@
/* Capability Register Offsets */
#define PCICAP_ID 0x0U
#define PCICAP_NEXTPTR 0x1U
#define PCICAP_EXP_CAP 0x2U
/* Capability Identification Numbers */
#define PCIY_MSI 0x05U