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92f9f5a4f3
Ivshmem device is used for shared memory based communication between
pre-launched/post-launched VMs.
this patch implements ivshmem device configuration space initialization
and ivshmem device operation methods.
v2: introduce init_one_pcibar interface to simplify BAR initialization
operation of HV emulated PCI device.
v3: 1) due to init_one_pcibar API is only used for pre-launched VM vdevs
it can't be applied to all vdevs, so remove it.
2) move ivshmem BARs initialization to subsequent patch, this patch
only introduce ivshmem configuration space initialization.
Tracked-On: #4853
Signed-off-by: Yuan Liu <yuan1.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>