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* Added missing reserved bits and renamed per to rer nameing as the
nvme specs
* Add pxcap capability in lspci test
Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
Reviewed-by: John Levon <john.levon@nutanix.com>
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Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
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Provide initial support for extended capabilities, and implement handlers for
the Device Serial Number and Vendor-Specific capabilities.
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
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Allow to add capabilities individually, including extended capabilities, and
those to be handled via the region callback.
As a side effect, rework config space accesses to handle reads that straddle
capabilities and non-standard areas and use callbacks as needed.
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
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Split up vfu_pci_setup_config_hdr(): individual "helpers" like vfu_pci_set_id()
are much simpler to use than making the user specify the values in
header-formatted structs; and this way if we want to add additional helpers, we
won't need to modify the existing functions.
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
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The PCI vendor-specific capability is blindly read/written by the
library. It is possible that the user might want to intercept accesses
to it, in which case we'll have to add callback. The best way to do this
to introduce a new function that configures callbacks for the PCI
capabilities, e.g.
typedef ssize_t (vfu_cap_access_t) (void *pvt, uint8_t id,
char *buf, size_t count, loff_t offset, bool is_write);
vfu_pci_cap_set_cb(vfu_ctx-T *vfu_ctx, uint8_t cap_id,
vfu_cap_access_t *cb);
This way the existing API won't have to change.
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
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Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
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Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
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