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2021-01-25minor rephrasing of get_pending_bytes documentation (#259)Thanos Makatos1-5/+6
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-22install dsn.h (#242)John Levon1-0/+1
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2021-01-22fix compilation on newer GCC versions (#241)John Levon6-11/+64
A newer GCC caught that in test_dma_controller_add_region_no_fd(), we were not allocating enough stack space for the region at the end of the dma_controller_t. Also add Fedora Rawhide to github CI for this. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-21Misc fixes for DMA_MAP region prot (#233)swapnili6-14/+71
* Misc fixes for DMA_MAP region prot 1. Validate prot passed in vfu_addr_to_sg() 2. Let user know region prot via vfu_unmap_dma_cb_t Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-20reword explanation of how dirty bitmaps are returned for clarity (#234)Thanos Makatos1-16/+20
reword explanation of how dirty bitmaps are returned for clarity Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-20support extended capabilities (#226)John Levon15-203/+777
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>
2021-01-20add whole-region mmap area for vfu_setup_region() (#225)John Levon4-68/+52
If an fd is provided, automatically add a mmap area covering the entire region unless an mmap_areas array is provided. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2021-01-20re-work API for adding capabilities (#200)John Levon12-738/+908
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>
2021-01-13don't fail vfio_device_info if incoming struct has more fields (#232)Thanos Makatos2-1/+24
Such incompatibilites are expected in the VFIO protocol. That's what argsz is for. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-13make vfu_region_to_offset public (#228)Thanos Makatos2-0/+16
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-08Fix error path (#229)swapnili1-0/+1
Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-08Use prot flags sent by client to map dma regions (#227)swapnili5-17/+45
* Use prot flags sent by client to map dma regions Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-07re-work access handling (#220)John Levon9-470/+367
Various cleanups and fixes to handling of region accesses, including: - there should be no reason for us to split accesses into 1/2/4/8 byte accesses: in general, the client will have already be doing that, and if not, there's no particular reason we should be the ones to split up such larger accesses. - use a callback for PCI config space reads and writes if one is provided (needs more work for capabilities) 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>
2021-01-05re-work capability-locating API (#199)John Levon5-75/+154
Explicitly mimic the Linux kernel API: the searching functions return an offset into configuration space. Just like a driver, libvfio-user devices can then look into config space via vfu_pci_get_config_space() to read the capability as needed. In general, the driver itself will know exactly what the size and shape of the capability is, so this seems like a low-friction, and familiar to driver writers, API. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-04re-work PCI config setup API (#198)John Levon8-69/+94
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>
2021-01-04move PCI-specific code to pci.c (#219)John Levon7-200/+217
It's still pretty entangled, but move the bulk of the non-cap PCI code over to pci.c. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-04remove vestigial vfu_mmap() (#221)John Levon2-31/+1
This is no longer useful. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-04pass vfu_ctx_t to callbacks (#222)John Levon8-105/+121
It's easy (with the new vfu_get_private()) to go from a vfu_ctx to the private pointer, but not the reverse; pass the ctx into all the callbacks. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-01-04remove Python bindings (#223)John Levon6-388/+1
They haven't kept pace with recent changes, and at this point are of no real use (and besides, options like CFFI are likely better than hand-rolled bindings). Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-18don't set wrong buffer size when replying to device info region (#217)Thanos Makatos1-5/+7
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17add mappable bit in DMA segment (#215)Thanos Makatos4-14/+44
remove duplicate code for initializing DMA segment, mark DMA segment whether it's mappable, plus basic unit test for dma_addr_to_sg Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17General fixes (#213)swapnili3-26/+33
* Reorg vfu_create_ctx() * Unconditionally call dma_controller_create() in vfu_setup_device_dma_cb(). * Added UT for vfu_setup_device_dma_cb() Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17Fix passing of recv_data (#214)swapnili1-1/+1
Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17add copy of vfio-user protocol specification (v8)Thanos Makatos1-0/+1670
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17unit test for validating arguments in dma_map_sgThanos Makatos1-1/+32
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17fail to map segment if DMA region isn't backed by file descriptorThanos Makatos1-1/+4
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-17validate region is segmentThanos Makatos1-0/+8
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-16enable ERR and REQ IRQs by default (#209)Thanos Makatos3-1/+13
enable ERR and REQ IRQs by default Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2020-12-16fix clang build (#210)John Levon5-46/+61
Also add clang to pull request build checks. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-16add github settings configuration (#207)John Levon1-0/+113
Using https://github.com/apps/settings, we can directly configure the repository configuration by modifying and pushing .github/settings.yml Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2020-12-16don't treat non-zero return value of dma_controller_add_region as failure (#206)Thanos Makatos2-1/+29
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-15send file descriptors for sparse areas in get region info (#201)Thanos Makatos10-145/+340
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-15add CentOS 7 build to github pull_request workflow (#194)John Levon3-3/+17
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-15clean up the API header file (#197)John Levon2-242/+240
This is almost entirely re-ordering: first the basic lifecycle things, then vfu_setup_*() group, then handlers and helpers, and finally PCI handling. 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>
2020-12-15remove vfu_get_pci_non_std_config_space() (#195)John Levon3-33/+11
Remove this API as well as vfu_pci_non_std_config_space_t. It's at best confusing to try to represent this area as if it's not just a normal part of the overall config space, and we don't really want an additional API for the extended space past either. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-14return region capabilities a la VFIO (#187)Thanos Makatos5-67/+160
This patch returns region capabilities the same way VFIO does: if argsz is not large enough then it returns only region info and sets argsz to what it should be in order to fit the capabilities, the client then retries with a large enough argsz. The protocol specification has been updated as well. Plus unit tests. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-14unit-tests: fix GCC4 build (#193)John Levon1-1/+1
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-14add unit test for device get info (#192)Thanos Makatos3-1/+19
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-14don't return memory allocated on the stackThanos Makatos1-16/+30
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-14don't leak memory in server sampleThanos Makatos1-0/+1
Make valgrind happy. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-11add support PCI vendor-specific capabilityThanos Makatos6-20/+147
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>
2020-12-11minor comment fixesThanos Makatos2-4/+11
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-11remove unused typedefThanos Makatos1-18/+0
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-11allow over-riding "cmake" (#184)John Levon1-1/+3
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2020-12-10add docs on running the gpio server back to README (#181)John Levon1-3/+36
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-10Drop vfu_ctx_drive() and use vfu_ctx_poll() (#178)swapnili8-44/+68
* Drop vfu_ctx_drive() and use vfu_run_ctx() Renamed vfu_ctx_poll() to vfu_run_ctx(). Updated vfu_run_ctx() to also handle blocking ctx. Instead of having separate functions for blocking and non-blocking ctx, better to have one. This way user can call same set of functions for both cases. Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-09unit tests: fix gcc4 build (#182)John Levon1-1/+1
Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2020-12-08Better vfu_attach_ctx() UT (#176)swapnili1-3/+12
Better vfu_attach_ctx() UT Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-08Misc fixes for vfu_ctx_try_attach() and vfu_realize_ctx() (#175)swapnili7-54/+86
Misc changes for vfu_ctx_try_attach() * Rename to vfu_attach_ctx() * Removed call to vfu_realize_ctx(), should be called separately * Now vfu_attach_ctx() must also be called for blocking ctx. Misc changes for vfu_realize_ctx() * Made calling vfu_realize_ctx() mandatory * vfu_ctx_drive() and vfu_poll_ctx() returns EINVAL if the device is not realized. * Renamed vfu_ctx->ready to vfu_ctx->realized Added unit test for vfu_attach_ctx() and vfu_realize_ctx() Signed-off-by: Swapnil Ingle <swapnil.ingle@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2020-12-08add shared library versioning (#174)John Levon1-4/+18
Add basic "soname" versioning (but don't yet start using it meaningfully). Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
generated by cgit v1.1 at 2025-09-20 23:39:43 +0000