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authorViresh Kumar <viresh.kumar@linaro.org>2022-08-02 10:50:01 +0100
committerMichael S. Tsirkin <mst@redhat.com>2022-10-07 09:41:51 -0400
commit25c60a4612dd30976dc2c471ebe050dd5f6635a4 (patch)
tree9c08f5dcb5b19d202d3bed2c695929a51db3c1da
parent27ba7b027f0f06479091bcfbcd308a6b272563a4 (diff)
hw/virtio: add vhost-user-gpio-pci boilerplate
This allows is to instantiate a vhost-user-gpio device as part of a PCI bus. It is mostly boilerplate which looks pretty similar to the vhost-user-fs-pci device. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <5f560cab92d0d789b1c94295ec74b9952907d69d.1641987128.git.viresh.kumar@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220802095010.3330793-14-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--MAINTAINERS2
-rw-r--r--hw/virtio/meson.build1
-rw-r--r--hw/virtio/vhost-user-gpio-pci.c69
3 files changed, 71 insertions, 1 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 66d519fe35..beccce4a7a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2102,7 +2102,7 @@ vhost-user-gpio
M: Alex Bennée <alex.bennee@linaro.org>
R: Viresh Kumar <viresh.kumar@linaro.org>
S: Maintained
-F: hw/virtio/vhost-user-gpio.c
+F: hw/virtio/vhost-user-gpio*
F: include/hw/virtio/vhost-user-gpio.h
virtio-crypto
diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build
index 33c8e71fab..c14e3db10a 100644
--- a/hw/virtio/meson.build
+++ b/hw/virtio/meson.build
@@ -30,6 +30,7 @@ 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_VHOST_USER_RNG', if_true: files('vhost-user-rng.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_GPIO', if_true: files('vhost-user-gpio.c'))
+virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_GPIO'], if_true: files('vhost-user-gpio-pci.c'))
virtio_pci_ss = ss.source_set()
virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock-pci.c'))
diff --git a/hw/virtio/vhost-user-gpio-pci.c b/hw/virtio/vhost-user-gpio-pci.c
new file mode 100644
index 0000000000..b3028a24a1
--- /dev/null
+++ b/hw/virtio/vhost-user-gpio-pci.c
@@ -0,0 +1,69 @@
+/*
+ * Vhost-user gpio virtio device PCI glue
+ *
+ * Copyright (c) 2022 Viresh Kumar <viresh.kumar@linaro.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "hw/qdev-properties.h"
+#include "hw/virtio/vhost-user-gpio.h"
+#include "hw/virtio/virtio-pci.h"
+
+struct VHostUserGPIOPCI {
+ VirtIOPCIProxy parent_obj;
+ VHostUserGPIO vdev;
+};
+
+typedef struct VHostUserGPIOPCI VHostUserGPIOPCI;
+
+#define TYPE_VHOST_USER_GPIO_PCI "vhost-user-gpio-pci-base"
+
+DECLARE_INSTANCE_CHECKER(VHostUserGPIOPCI, VHOST_USER_GPIO_PCI,
+ TYPE_VHOST_USER_GPIO_PCI)
+
+static void vhost_user_gpio_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
+{
+ VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(vpci_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+
+ vpci_dev->nvectors = 1;
+ qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
+}
+
+static void vhost_user_gpio_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_gpio_pci_realize;
+ set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+ 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_COMMUNICATION_OTHER;
+}
+
+static void vhost_user_gpio_pci_instance_init(Object *obj)
+{
+ VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VHOST_USER_GPIO);
+}
+
+static const VirtioPCIDeviceTypeInfo vhost_user_gpio_pci_info = {
+ .base_name = TYPE_VHOST_USER_GPIO_PCI,
+ .non_transitional_name = "vhost-user-gpio-pci",
+ .instance_size = sizeof(VHostUserGPIOPCI),
+ .instance_init = vhost_user_gpio_pci_instance_init,
+ .class_init = vhost_user_gpio_pci_class_init,
+};
+
+static void vhost_user_gpio_pci_register(void)
+{
+ virtio_pci_types_register(&vhost_user_gpio_pci_info);
+}
+
+type_init(vhost_user_gpio_pci_register);