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[PULL v2 23/44] vhost-user-rng-pci: Add vhost-user-rng-pci implementatio
From: |
Michael S. Tsirkin |
Subject: |
[PULL v2 23/44] vhost-user-rng-pci: Add vhost-user-rng-pci implementation |
Date: |
Wed, 20 Oct 2021 06:20:17 -0400 |
From: Mathieu Poirier <mathieu.poirier@linaro.org>
This patch provides a PCI bus interface to the vhost-user-rng backend.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Message-Id: <20211012205904.4106769-3-mathieu.poirier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
hw/virtio/vhost-user-rng-pci.c | 79 ++++++++++++++++++++++++++++++++++
hw/virtio/meson.build | 1 +
2 files changed, 80 insertions(+)
create mode 100644 hw/virtio/vhost-user-rng-pci.c
diff --git a/hw/virtio/vhost-user-rng-pci.c b/hw/virtio/vhost-user-rng-pci.c
new file mode 100644
index 0000000000..c83dc86813
--- /dev/null
+++ b/hw/virtio/vhost-user-rng-pci.c
@@ -0,0 +1,79 @@
+/*
+ * Vhost-user RNG virtio device PCI glue
+ *
+ * Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev-properties.h"
+#include "hw/virtio/vhost-user-rng.h"
+#include "virtio-pci.h"
+
+struct VHostUserRNGPCI {
+ VirtIOPCIProxy parent_obj;
+ VHostUserRNG vdev;
+};
+
+typedef struct VHostUserRNGPCI VHostUserRNGPCI;
+
+#define TYPE_VHOST_USER_RNG_PCI "vhost-user-rng-pci-base"
+
+DECLARE_INSTANCE_CHECKER(VHostUserRNGPCI, VHOST_USER_RNG_PCI,
+ TYPE_VHOST_USER_RNG_PCI)
+
+static Property vhost_user_rng_pci_properties[] = {
+ DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
+ DEV_NVECTORS_UNSPECIFIED),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vhost_user_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
+{
+ VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(vpci_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+
+ if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
+ vpci_dev->nvectors = 1;
+ }
+
+ qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
+}
+
+static void vhost_user_rng_pci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
+ PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
+ k->realize = vhost_user_rng_pci_realize;
+ set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+ device_class_set_props(dc, vhost_user_rng_pci_properties);
+ pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
+ pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
+ pcidev_k->revision = 0x00;
+ pcidev_k->class_id = PCI_CLASS_OTHERS;
+}
+
+static void vhost_user_rng_pci_instance_init(Object *obj)
+{
+ VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VHOST_USER_RNG);
+}
+
+static const VirtioPCIDeviceTypeInfo vhost_user_rng_pci_info = {
+ .base_name = TYPE_VHOST_USER_RNG_PCI,
+ .non_transitional_name = "vhost-user-rng-pci",
+ .instance_size = sizeof(VHostUserRNGPCI),
+ .instance_init = vhost_user_rng_pci_instance_init,
+ .class_init = vhost_user_rng_pci_class_init,
+};
+
+static void vhost_user_rng_pci_register(void)
+{
+ virtio_pci_types_register(&vhost_user_rng_pci_info);
+}
+
+type_init(vhost_user_rng_pci_register);
diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build
index ae6b2cde10..521f7d64a8 100644
--- a/hw/virtio/meson.build
+++ b/hw/virtio/meson.build
@@ -28,6 +28,7 @@ virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true:
files('virtio-mem.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true:
files('vhost-user-i2c.c'))
virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_I2C'], if_true:
files('vhost-user-i2c-pci.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true:
files('vhost-user-rng.c'))
+virtio_ss.add(when: ['CONFIG_VHOST_USER_RNG', 'CONFIG_VIRTIO_PCI'], if_true:
files('vhost-user-rng-pci.c'))
virtio_pci_ss = ss.source_set()
virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true:
files('vhost-vsock-pci.c'))
--
MST
- [PULL v2 10/44] tests: acpi: add testcase for amd-iommu (IVRS table), (continued)
- [PULL v2 10/44] tests: acpi: add testcase for amd-iommu (IVRS table), Michael S. Tsirkin, 2021/10/20
- [PULL v2 11/44] tests: acpi: update expected blobs, Michael S. Tsirkin, 2021/10/20
- [PULL v2 12/44] tests: acpi: arm/virt: drop redundant test_acpi_one() in test_acpi_virt_tcg(), Michael S. Tsirkin, 2021/10/20
- [PULL v2 15/44] tests: bios-tables-test: use qtest_has_accel() API to register TCG only tests, Michael S. Tsirkin, 2021/10/20
- [PULL v2 16/44] vdpa: Skip protected ram IOMMU mappings, Michael S. Tsirkin, 2021/10/20
- [PULL v2 14/44] tests: migration-test: use qtest_has_accel() API, Michael S. Tsirkin, 2021/10/20
- [PULL v2 13/44] tests: arm-cpu-features: use qtest_has_kvm() API, Michael S. Tsirkin, 2021/10/20
- [PULL v2 17/44] vdpa: Add vhost_vdpa_section_end, Michael S. Tsirkin, 2021/10/20
- [PULL v2 19/44] virtio-iommu: Remove the non transitional name, Michael S. Tsirkin, 2021/10/20
- [PULL v2 20/44] virtio-iommu: Drop base_name and change generic_name, Michael S. Tsirkin, 2021/10/20
- [PULL v2 23/44] vhost-user-rng-pci: Add vhost-user-rng-pci implementation,
Michael S. Tsirkin <=
- [PULL v2 21/44] libvhost-user: fix VHOST_USER_REM_MEM_REG skipping mmap_addr, Michael S. Tsirkin, 2021/10/20
- [PULL v2 18/44] vdpa: Check for iova range at mappings changes, Michael S. Tsirkin, 2021/10/20
- [PULL v2 24/44] docs: Add documentation for vhost based RNG implementation, Michael S. Tsirkin, 2021/10/20
- [PULL v2 26/44] failover: fix a regression introduced by JSON'ification of -device, Michael S. Tsirkin, 2021/10/20
- [PULL v2 27/44] vhost-user-blk-test: pass vhost-user socket fds to QSD, Michael S. Tsirkin, 2021/10/20
- [PULL v2 25/44] vhost-user: fix duplicated notifier MR init, Michael S. Tsirkin, 2021/10/20
- [PULL v2 22/44] vhost-user-rng: Add vhost-user-rng implementation, Michael S. Tsirkin, 2021/10/20
- [PULL v2 29/44] rebuild-expected-aml.sh: allow partial target list, Michael S. Tsirkin, 2021/10/20
- [PULL v2 30/44] bios-tables-test: don't disassemble empty files, Michael S. Tsirkin, 2021/10/20
- [PULL v2 28/44] qdev/qbus: remove failover specific code, Michael S. Tsirkin, 2021/10/20