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2023-09-15refactor migration transition testWilliam Henderson1-2/+8
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15refactor bad pythonWilliam Henderson1-2/+2
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15refactor migration tests and small test fixesWilliam Henderson4-114/+111
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15respond to more of Thanos's commentsWilliam Henderson5-206/+309
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15fix: authors of test_migration.pyWilliam Henderson1-1/+2
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add more tests for bad argszWilliam Henderson1-1/+51
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15fix: argsz semantics in testsWilliam Henderson2-16/+20
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: improve test coverageWilliam Henderson3-5/+176
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add missing tests for different dirty page sizesWilliam Henderson2-6/+33
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15refactor: move a number of tests from C to PythonWilliam Henderson3-51/+195
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15fix: fixes for changes from John's core reviewWilliam Henderson3-53/+4
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add test for nonexistent stateWilliam Henderson1-0/+15
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add tests for migration FSM pathsWilliam Henderson3-0/+271
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15fix: memory leak in dirty page tracking testsWilliam Henderson1-5/+9
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add tests for logging specific pagesWilliam Henderson1-14/+84
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15fix: conflict with kernel definitions in testsWilliam Henderson1-6/+0
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add tests for dirty page loggingWilliam Henderson3-3/+367
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: add migration state sequence testWilliam Henderson2-34/+0
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-09-15test: update existing testsWilliam Henderson10-902/+37
Signed-off-by: William Henderson <william.henderson@nutanix.com>
2023-06-21Fix some python tests (#737)Axel PASCON3-6/+6
Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2023-06-08fix err/req irq fd issue (#731)limiao-intel1-0/+18
When handle_device_set_irqs set err irq/req irq, fd will be filled in vfu_ctx->irqs->efds[] rather than vfu_ctx->irqs->err_efd or vfu_ctx->irqs->req_efd. This patch adds irq index judgment before filling in fd to make sure fd is filled in the correct place. Signed-off-by: Miao Li <miao.li@intel.com> Reviewed-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2023-01-04allow -1 file descriptor for ioregionfd (#727)Thanos Makatos2-0/+97
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2023-01-03fix FLR reset callback (#729)John Levon3-14/+37
A reset callback is allowed to call functions disallowed in quiescent state. However, the FLR reset path neglected to account for this properly, causing an incorrect assert to be triggered if, for example, vfu_sgl_put() is called. To fix this, make sure all reset paths go through call_reset_cb(). Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-11-22vfu_pci_init: initialize PCI config space flags (#724)Thanos Makatos1-0/+73
vfu_pci_init() sets the size of the PCI config space but not the flags; vfu_realize_ctx() won't initialize the flags since the size if already set. vfu_pci_init() must initialize flags as well. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-11-22fix shadow ioeventfd unit test (#726)Thanos Makatos2-3/+3
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-11-22allow shadow memory offset per shadow ioeventfd (#703)Thanos Makatos3-15/+17
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-10-05don't duplicate FD in get region info (#715)Thanos Makatos1-13/+2
This is out of spec. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-10-04fix compilation for i386 and ppc64 (#709)Thanos Makatos9-101/+151
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com> Reported-by: Eduardo Lima <eblima@gmail.com>
2022-08-08delete socket on vfu_ctx_destroy (#702)Thanos Makatos1-0/+1
fixes #660 Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2022-07-04support for shadow ioeventfd (#698)Thanos Makatos5-8/+121
When an ioeventfd is written to, KVM discards the value since it has no memory to write it to, and simply kicks the eventfd. This a problem for devices such a NVMe controllers that need the value (e.g. doorbells on BAR0). This patch allows the vfio-user server to pass a file descriptor that can be mmap'ed and KVM can write the ioeventfd value to this _shadow_ memory instead of discarding it. This shadow memory is not exposed to the guest. Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com> Change-Id: Iad849c94076ffa5988e034c8bf7ec312d01f095f
2022-06-09test/py: fix the arguments for vfu_dev_irq_state_cb_t (#695)Jag Raman2-4/+7
There is a typo in the arguments for vfu_dev_irq_state_cb_t - fix it in this patch. Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-06-07irq: inform device of IRQ mask & unmask via callback (#694)Jag Raman2-0/+38
Client masks or unmasks a device IRQ using the VFIO_USER_DEVICE_SET_IRQS message. Inform the device of such changes to the IRQ state. Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2022-05-30allow concurrent dirty bitmap get (#677)John Levon1-30/+74
Use atomic operations to allow concurrent bitmap updates with VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP operations. Dirtying clients can race against each other, so we must use atomic or when marking dirty: we do this byte-by-byte. When reading the dirty bitmap, we must be careful to not race and lose any set bits within the same byte. If we miss an update, we'll catch it the next time around, presuming that before the final pass we'll have quiesced all I/O. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-27re-work SGL API (#675)John Levon6-55/+55
Harmonize and rename the vfu_*sg() APIs to better reflect their functionality: in our case, there is no mapping happening as part of these calls, they are merely housekeeping for range splitting, dirty tracking, and so on. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-27remove maps list from DMA controller (#674)John Levon2-3/+1
->maps existed so that if a consumer does vfu_map_sg() and then we are asked to enable dirty page tracking, we won't mark those pages as dirty, and will hence potentially lose data. Now that we require quiesce and the use of either vfu_unmap_sg() or vfu_sg_mark_dirty(), there's no need to have this list any more. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-27re-work SG dirty tracking (#672)John Levon1-29/+26
Move SG dirtying to vfu_unmap_sg(): as we don't want to track SGs ourselves, doing this in vfu_map_sg() is no longer the right place. Note that the lack of tracking implies that any SGs must be unmapped before the final stop and copy phase. To avoid the need for this, add vfu_mark_sg_dirty(): this allows a consumer to mark a region as dirty explicitly without needing to unmap it. Currently it's the same as vfu_unmap_sg(), but that's an implementation detail. Note this still marks current maps after a get operation; that will change subsequently. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-27require quiesce for VFIO_USER_DIRTY_PAGES (#671)John Levon1-6/+87
If we require a quiesce for these calls, we can be sure that it will not race with any usage of vfu_*_sg() calls, as a first step towards concurrency. This is not ideal for VFIO_IOMMU_DIRTY_PAGES_FLAG_GET_BITMAP, which can potentially be called multiple times during pre-copy phase, but that's something we can fix later. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-23libvfio-user.h: sync VFIO_DEVICE_STATE_XXXX definitions with upstream (#690)Jag Raman3-13/+13
Rename VFIO_DEVICE_STATE_XXXX defines as VFIO_DEVICE_STATE_V1_XXXX. Upstream renamed these variable to be of the XXXX_V1_XXXX format and switched an enum for VFIO_DEVICE_STATE_XXXX. Signed-off-by: Jagannathan Raman <jag.raman@oracle.com> Reviewed-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-05-09build: delete CMake build rulesDaniel P. Berrangé1-4/+1
Now that Meson is functional, support for building with CMake is removed so that there is only one build system to maintain. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-05-09build: introduce Meson build file rulesDaniel P. Berrangé1-0/+71
The Meson build system used by many other virt projects (QEMU, libvirt and others) is easier to understand & maintain rules for than cmake, guiding towards best practice. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-05-09test: pass in location of libvfio-user.so libraryDaniel P. Berrangé1-0/+2
The test currently hardwires a location based on where cmake creates binaries. Pass in an explicit location via LIBVFIO_SO_DIR env variable, to override this hardwired default. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-04-28lib: export dma_sg_size symbol in library (#664)Daniel Berrangé2-0/+10
The dma_sg_size() method is listed in libvfio-user.h but the symbol is marked private in the ELF library. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-04-21support AFL++ fuzzing (#623)John Levon2-1/+4
To support fuzzing with AFL++, add a "pipe" transport that reads from stdin and outputs to stdout: this is the most convenient way of doing fuzzing. Add some docs on how to run a fuzzing session. 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>
2022-02-18test/py: simplify errno handling (#645)John Levon15-109/+102
We explicitly identify the quiesce EBUSY case for msg(), letting us simplify the handling of expected errno. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Swapnil Ingle <swapnil.ingle@nutanix.com>
2022-02-14test/py: don't stop logging twice (#644)John Levon1-5/+0
We were accidentally calling VFIO_USER_DIRTY_PAGES twice. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2022-02-04ignore writes to RO MSI-X registers (#642)Thanos Makatos2-2/+74
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2021-12-09allow DMA funcs to be called in quiesced state (#635)Thanos Makatos3-11/+168
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Levon <john.levon@nutanix.com>
2021-12-02test more region access validation code (#634)John Levon1-1/+25
Add a little more coverage of our validation, and correct a small typo. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
2021-11-30introduce device quiesce callback (#609)Thanos Makatos19-275/+1046
Signed-off-by: Thanos Makatos <thanos.makatos@nutanix.com> Reviewed-by: John Leon <john.levon@nutanix.com>
2021-11-24verify region is mapped before acquiring dirty bitmap (#627)John Levon2-2/+61
DMA regions not mapped by the server are not dirty tracked (the client must track changes via handling VFIO_USER_DMA_WRITE), but we weren't correctly enforcing this, which could segfault when ->dirty_bitmap was NULL. Found via AFL++. Signed-off-by: John Levon <john.levon@nutanix.com> Reviewed-by: Thanos Makatos <thanos.makatos@nutanix.com>
generated by cgit v1.1 at 2024-10-20 01:34:35 +0000