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envelope-from=elena.ufimtseva@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_BL=0.001, RCVD_IN_MSPIKE_L3=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: elena.ufimtseva@oracle.com, john.g.johnson@oracle.com, jag.raman@oracle.com, swapnil.ingle@nutanix.com, john.levon@nutanix.com, alex.williamson@redhat.com, stefanha@redhat.com, thanos.makatos@nutanix.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: John Johnson Signed-off-by: Elena Ufimtseva Signed-off-by: John G Johnson Signed-off-by: Jagannathan Raman --- hw/vfio/user-protocol.h | 13 +++++++++++++ hw/vfio/user.h | 1 + hw/vfio/pci.c | 13 +++++++++++++ hw/vfio/user.c | 20 ++++++++++++++++++++ 4 files changed, 47 insertions(+) diff --git a/hw/vfio/user-protocol.h b/hw/vfio/user-protocol.h index 14b762d1ad..13e44ebf1c 100644 --- a/hw/vfio/user-protocol.h +++ b/hw/vfio/user-protocol.h @@ -82,4 +82,17 @@ typedef struct { #define VFIO_USER_MAX_MAX_XFER (64 * 1024 * 1024) +/* + * VFIO_USER_DEVICE_GET_INFO + * imported from struct_device_info + */ +typedef struct { + VFIOUserHdr hdr; + uint32_t argsz; + uint32_t flags; + uint32_t num_regions; + uint32_t num_irqs; + uint32_t cap_offset; +} VFIOUserDeviceInfo; + #endif /* VFIO_USER_PROTOCOL_H */ diff --git a/hw/vfio/user.h b/hw/vfio/user.h index cab957ba7a..82044e7e78 100644 --- a/hw/vfio/user.h +++ b/hw/vfio/user.h @@ -71,5 +71,6 @@ void vfio_user_set_reqhandler(VFIODevice *vbasdev, void *reqarg); void vfio_user_send_reply(VFIOProxy *proxy, char *buf, int ret); int vfio_user_validate_version(VFIODevice *vbasedev, Error **errp); +int vfio_user_get_info(VFIODevice *vbasedev); #endif /* VFIO_USER_H */ diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index eae33e746f..63aa2441f0 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3369,6 +3369,7 @@ static void vfio_user_pci_realize(PCIDevice *pdev, Error **errp) VFIODevice *vbasedev = &vdev->vbasedev; SocketAddress addr; VFIOProxy *proxy; + int ret; Error *err = NULL; /* @@ -3410,6 +3411,18 @@ static void vfio_user_pci_realize(PCIDevice *pdev, Error **errp) vbasedev->no_mmap = false; vbasedev->ops = &vfio_user_pci_ops; + ret = vfio_user_get_info(&vdev->vbasedev); + if (ret) { + error_setg_errno(errp, -ret, "get info failure"); + goto error; + } + + vfio_populate_device(vdev, &err); + if (err) { + error_propagate(errp, err); + goto error; + } + error: vfio_user_disconnect(proxy); error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name); diff --git a/hw/vfio/user.c b/hw/vfio/user.c index e89464a571..b584b8e0f2 100644 --- a/hw/vfio/user.c +++ b/hw/vfio/user.c @@ -714,3 +714,23 @@ int vfio_user_validate_version(VFIODevice *vbasedev, Error **errp) return 0; } + +int vfio_user_get_info(VFIODevice *vbasedev) +{ + VFIOUserDeviceInfo msg; + + memset(&msg, 0, sizeof(msg)); + vfio_user_request_msg(&msg.hdr, VFIO_USER_DEVICE_GET_INFO, sizeof(msg), 0); + msg.argsz = sizeof(struct vfio_device_info); + + vfio_user_send_recv(vbasedev->proxy, &msg.hdr, NULL, 0, 0); + if (msg.hdr.flags & VFIO_USER_ERROR) { + return -msg.hdr.error_reply; + } + + vbasedev->num_irqs = msg.num_irqs; + vbasedev->num_regions = msg.num_regions; + vbasedev->flags = msg.flags; + vbasedev->reset_works = !!(msg.flags & VFIO_DEVICE_FLAGS_RESET); + return 0; +} -- 2.25.1