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2019-05-21tests/libqos: Get rid of global_qtest dependency in qvring_init()Thomas Huth
Library functions should not depend on global_qtest functions like writew() and writeq(), so that they can also be used in tests that deal with multiple QTestStates at the same time (like migration tests). Message-Id: <20190515174328.16361-2-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-03-07tests/libqos: remove pre-qgraph QVirtioPCIDevice APIPaolo Bonzini
Remove the qvirtio_pci_device_find* and qvirtio_pci_device_free APIs, now that they do not have any users. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-03-07tests/libqos: remove global_qtest from virtio endianness checksPaolo Bonzini
This is needed to support migration tests with qgraph. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-03-07tests/libqos: virtio-pci driver and interface nodesEmanuele Giuseppe Esposito
Add QOSGraphObject to QVirtioPCIDevice structure, with a basic constructor. virtio-pci is not present in qgraph, since it will be used as starting point by its subclasses (virtio-*-pci) Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-05tests/libqos: Check for valid dev pointer when looking for PCI devicesThomas Huth
dev could be NULL if the PCI device can not be found due to some reasons, so we must not dereference the pointer in this case. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-id: 1519713884-2346-1-git-send-email-thuth@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-03-01tests: fix virtio-blk-test leaksMarc-André Lureau
Use qvirtio_pci_device_find_slot() to avoid leaking the non-hp device. Add assert() to avoid further leaks in the future. Use qvirtio_pci_device_free() to correctly free QVirtioPCIDevice. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-01tests: add specialized device_find functionMarc-André Lureau
Allow specifying which slot to look for the device. This will be used in the following patch to avoid leaking when multiple devices exists and we want to lookup the hotplug one. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-03-01tests: fix vhost-user-test leaksMarc-André Lureau
Spotted by ASAN. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-10-28libqos: Change PCI accessors to take opaque BAR handleDavid Gibson
The usual use model for the libqos PCI functions is to map a specific PCI BAR using qpci_iomap() then pass the returned token into IO accessor functions. This, and the fact that iomap() returns a (void *) which actually contains a PCI space address, kind of suggests that the return value from iomap is supposed to be an opaque token. ..except that the callers expect to be able to add offsets to it. Which also assumes the compiler will support pointer arithmetic on a (void *), and treat it as working with byte offsets. To clarify this situation change iomap() and the IO accessors to take a definitely opaque BAR handle (enforced with a wrapper struct) along with an offset within the BAR. This changes both the functions and all the callers. There were a number of places that checked if iomap() returned non-NULL, and or initialized it to NULL before hand. Since iomap() already assert()s if it fails to map the BAR, these tests were mostly pointless and are removed. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org>
2016-10-28libqos: Add 64-bit PCI IO accessorsDavid Gibson
Currently the libqos PCI layer includes accessor helpers for 8, 16 and 32 bit reads and writes. It's likely that we'll want 64-bit accesses in the future (plenty of modern peripherals will have 64-bit reigsters). This adds them. For PIO (not MMIO) accesses on the PC backend, this is implemented as two 32-bit ins or outs. That's not ideal but AFAICT x86 doesn't have 64-bit versions of in and out. This patch also converts the single current user of 64-bit accesses - virtio-pci.c to use the new mechanism, rather than a sequence of 8 byte reads. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org>
2016-10-28libqos: Give qvirtio_config_read*() consistent semanticsDavid Gibson
The 'addr' parameter to qvirtio_config_read*() doesn't have a consistent meaning: when using the virtio-pci versions, it's a full PCI space address, but for virtio-mmio, it's an offset from the device's base mmio address. This means that the callers need to do different things to calculate the addresses in the two cases, which rather defeats the purpose of function pointer backends. All the current users of these functions are using them to retrieve variables from the device specific portion of the virtio config space. So, this patch alters the semantics to always be an offset into that device specific config area. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org>
2016-10-28tests: enable virtio tests on SPAPRLaurent Vivier
but disable MSI-X tests on SPAPR as we can't check the result (the memory region used on PC is not readable on SPAPR). Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-10-28tests: rename target_big_endian() as qvirtio_is_big_endian()Laurent Vivier
Move the definition to libqos/virtio.h as it must be used only with virtio functions. Add a QVirtioDevice parameter as it will be needed to know if the virtio device is using virtio 1.0 specification and thus is always little-endian (to do) Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-10-28tests: move QVirtioBus pointer into QVirtioDeviceLaurent Vivier
This allows to not have to pass bus and device for every virtio functions. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Thomas Huth <thuth@redhat.com> [dwg: Fix style nit] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-10-14qtest: ask endianness of the target in qtest_init()Laurent Vivier
The target endianness is not deduced anymore from the architecture name but asked directly to the guest, using a new qtest command: "endianness". As it can't change (this is the value of TARGET_WORDS_BIGENDIAN), we store it to not have to ask every time we want to know if we have to byte-swap a value. Signed-off-by: Laurent Vivier <lvivier@redhat.com> CC: Greg Kurz <groug@kaod.org> CC: David Gibson <david@gibson.dropbear.id.au> CC: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-20libqos: add qvirtqueue_cleanup()Stefan Hajnoczi
qvirtqueue_setup() allocates the vring and virtqueue state. So far there has been no function to free it. Callers have been using guest_free() for the vring but forgot to free the QVirtQueue state. This patch solves the memory leak by introducing qvirtqueue_cleanup(). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-20libqos: drop duplicated virtio_pci.h definitionsStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1462798061-30382-9-git-send-email-stefanha@redhat.com
2016-06-20libqos: drop duplicated virtio_ring.h bit definitionsStefan Hajnoczi
Note that virtio_ring.h defines feature bits using their bit number: #define VIRTIO_RING_F_INDIRECT_DESC 28 On the other hand libqos virtio.h uses the bit mask: #define QVIRTIO_F_RING_INDIRECT_DESC 0x10000000 The patch makes the necessary adjustments. I have used "1u << BITMASK" instead of "1ULL << BITMASK" because the 64-bit feature fields are not implemented in libqos virtio. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1462798061-30382-5-git-send-email-stefanha@redhat.com
2016-06-20libqos: drop duplicated PCI vendor ID definitionStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1462798061-30382-3-git-send-email-stefanha@redhat.com
2016-06-07tests: Remove unnecessary glib.h includesPeter Maydell
Remove glib.h includes, as it is provided by osdep.h. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-02-16tests: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com>
2015-03-10libqos: Solve bug in interrupt checking when using MSIX in virtio-pci.cMarc Marí
The MSIX interrupt was always acked without checking its value, which caused a race condition. If the ISR was raised between the read and the acking, the ISR was never detected and it timed out. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Reviewed-by: John Snow <jsnow@redhat.com> Tested-by: John Snow <jsnow@redhat.com> Message-id: 1424795655-16952-1-git-send-email-marc.mari.barcelo@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10libqos: Remove PCI assumptions in constants of virtio driverMarc Marí
Convert PCI-specific constants names of libqos virtio driver. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1424812915-25728-4-git-send-email-marc.mari.barcelo@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10libqos: Change use of pointers to uint64_t in virtioMarc Marí
Convert use of pointers in functions of virtio to uint64_t in order to make it platform-independent. Add casting from pointers (in PCI functions) to uint64_t and vice versa through uintptr_t. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1424812915-25728-2-git-send-email-marc.mari.barcelo@gmail.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-09-08libqos: Added EVENT_IDX supportMarc Marí
Added avail_event and NO_NOTIFY check before notifying. Added used_event setting. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08libqos: Added MSI-X supportMarc Marí
Added MSI-X support for qtest PCI. Added MSI-X support for virtio-pci. Added MSI-X test case in virtio-blk-test. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08libqos: Added indirect descriptor support to virtio implementationMarc Marí
Add functions necessary for working with indirect descriptors. Add test using new functions. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08libqos: Added basic virtqueue support to virtio implementationMarc Marí
Add status changing and feature negotiation. Add basic virtqueue support for adding and sending virtqueue requests. Add ISR checking. [Squashed request endianness fix by Greg Kurz <gkurz@linux.vnet.ibm.com> --Stefan] Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08tests: Add virtio device initializationMarc Marí
Add functions to read and write virtio header fields. Add status bit setting in virtio-blk-device. Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-08tests: Functions bus_foreach and device_find from libqos virtio APIMarc Marí
Virtio header has been changed to compile and work with a real device. Functions bus_foreach and device_find have been implemented for PCI. Virtio-blk test case now opens a fake device. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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