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tests/qtest/libqos: Add generic pci host bridge in arm-virt machine

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Up to now the virt-machine node contains a virtio-mmio node.
However no driver produces any PCI interface node. Hence, PCI
tests cannot be run with aarch64 binary.

Add a GPEX driver node that produces a pci interface node. This latter
then can be consumed by all the pci tests. One of the first motivation
was to be able to run the virtio-iommu-pci tests.

We still face an issue with pci hotplug tests as hotplug cannot happen
on the pcie root bus and require a generic root port. This will be
addressed later on.

We force cpu=max along with aarch64/virt machine as some PCI tests
require high MMIO regions to be available.

Signed-off-by: Eric Auger <eric.auger@redhat.com>

Message-Id: <20220504152025.1785704-4-eric.auger@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Eric Auger 2022-05-04 17:20:25 +02:00 • committed by Paolo Bonzini
parent 02ee7a8a97
commit 70be1d93f9
4 changed files with 301 additions and 4 deletions
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54
tests/qtest/libqos/generic-pcihost.h Normal file
View file

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/*
* libqos Generic PCI bindings and generic pci host bridge
*
* Copyright Red Hat Inc., 2022
*
* Authors:
* Eric Auger <eric.auger@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef LIBQOS_GENERIC_PCIHOST_H
#define LIBQOS_GENERIC_PCIHOST_H
#include "pci.h"
#include "malloc.h"
#include "qgraph.h"
typedef struct QGenericPCIBus {
QOSGraphObject obj;
QPCIBus bus;
uint64_t gpex_pio_base;
uint64_t ecam_alloc_ptr;
} QGenericPCIBus;
/*
* qpci_init_generic():
* @ret: A valid QGenericPCIBus * pointer
* @qts: The %QTestState
* @alloc: A previously initialized @alloc providing memory for @qts
* @bool: devices can be hotplugged on this bus
*
* This function initializes an already allocated
* QGenericPCIBus object.
*/
void qpci_init_generic(QGenericPCIBus *ret, QTestState *qts,
QGuestAllocator *alloc, bool hotpluggable);
/* QGenericPCIHost */
typedef struct QGenericPCIHost QGenericPCIHost;
struct QGenericPCIHost {
QOSGraphObject obj;
QGenericPCIBus pci;
};
QOSGraphObject *generic_pcihost_get_device(void *obj, const char *device);
void qos_create_generic_pcihost(QGenericPCIHost *host,
QTestState *qts,
QGuestAllocator *alloc);
#endif