Re: [PATCH 2/5] hw/virtio: add vhost-user-i2c-pci boilerplate

[Alex Bennée]

Viresh Kumar <viresh.kumar@linaro.org> writes:

> This allows is to instantiate a vhost-user-i2c 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>
> ---
>  hw/virtio/meson.build          |  1 +
>  hw/virtio/vhost-user-i2c-pci.c | 79 ++++++++++++++++++++++++++++++++++
>  2 files changed, 80 insertions(+)
>  create mode 100644 hw/virtio/vhost-user-i2c-pci.c
>
> diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build
> index 1a0d736a0db5..bc352a600911 100644
> --- a/hw/virtio/meson.build
> +++ b/hw/virtio/meson.build
> @@ -26,6 +26,7 @@ virtio_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: 
> files('virtio-rng.c'))
>  virtio_ss.add(when: 'CONFIG_VIRTIO_IOMMU', if_true: files('virtio-iommu.c'))
>  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_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-i2c-pci.c b/hw/virtio/vhost-user-i2c-pci.c
> new file mode 100644
> index 000000000000..4bcfeafcb632
> --- /dev/null
> +++ b/hw/virtio/vhost-user-i2c-pci.c
> @@ -0,0 +1,79 @@
> +/*
> + * Vhost-user i2c virtio device PCI glue
> + *
> + * Copyright (c) 2021 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-i2c.h"
> +#include "virtio-pci.h"
> +
> +struct VHostUserI2CPCI {
> +    VirtIOPCIProxy parent_obj;
> +    VHostUserI2C vdev;
> +};
> +
> +typedef struct VHostUserI2CPCI VHostUserI2CPCI;
> +
> +#define TYPE_VHOST_USER_I2C_PCI "vhost-user-i2c-pci-base"
> +
> +DECLARE_INSTANCE_CHECKER(VHostUserI2CPCI, VHOST_USER_I2C_PCI,
> +                         TYPE_VHOST_USER_I2C_PCI)
> +
> +static Property vhost_user_i2c_pci_properties[] = {
> +    DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
> +                       DEV_NVECTORS_UNSPECIFIED),

I suspect we can drop the property if there is nothing useful the user
can specify here. We can just default to 1 on device realization.

Otherwise:

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée