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From: Peter Xu <peterx@redhat.com>
To: Eric Auger <eric.auger@redhat.com>
Cc: peter.maydell@linaro.org, kevin.tian@intel.com, mst@redhat.com,
	tn@semihalf.com, qemu-devel@nongnu.org,
	alex.williamson@redhat.com, qemu-arm@nongnu.org,
	jean-philippe@linaro.org, bharat.bhushan@nxp.com,
	eric.auger.pro@gmail.com
Subject: Re: [Qemu-devel] [PATCH for-4.2 v10 10/15] virtio-iommu: Implement probe request
Date: Mon, 19 Aug 2019 20:08:15 +0800
Message-ID: <20190819120815.GD13560@xz-x1> (raw)
In-Reply-To: <20190730172137.23114-11-eric.auger@redhat.com>

On Tue, Jul 30, 2019 at 07:21:32PM +0200, Eric Auger wrote:

[...]

> +/* Fill the properties[] buffer with properties of type @type */
> +static int virtio_iommu_fill_property(int type,
> +                                      viommu_property_buffer *bufstate)
> +{
> +    int ret = -ENOSPC;
> +
> +    if (bufstate->filled + sizeof(struct virtio_iommu_probe_property)
> +            >= VIOMMU_PROBE_SIZE) {
> +        /* no space left for the header */
> +        bufstate->error = true;
> +        goto out;
> +    }
> +
> +    switch (type) {
> +    case VIRTIO_IOMMU_PROBE_T_NONE:
> +        ret = virtio_iommu_fill_none_prop(bufstate);
> +        break;
> +    case VIRTIO_IOMMU_PROBE_T_RESV_MEM:
> +    {
> +        viommu_endpoint *ep = bufstate->endpoint;
> +
> +        g_tree_foreach(ep->reserved_regions,
> +                       virtio_iommu_fill_resv_mem_prop,
> +                       bufstate);
> +        if (!bufstate->error) {
> +            ret = 0;
> +        }
> +        break;
> +    }
> +    default:
> +        ret = -ENOENT;
> +        break;
> +    }
> +out:
> +    if (ret) {
> +        error_report("%s property of type=%d could not be filled (%d),"
> +                     " remaining size = 0x%lx",
> +                     __func__, type, ret, bufstate->filled);

Nit: If this can really be triggered then we might still change it to
error_report_once()?  If it's not (which it seems to), maybe assert
directly?

Other than that it looks good to me:

Reviewed-by: Peter Xu <peterx@redhat.com>

Regards,

-- 
Peter Xu


  reply index

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30 17:21 [Qemu-devel] [PATCH for-4.2 v10 00/15] VIRTIO-IOMMU device Eric Auger
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 01/15] update-linux-headers: Import virtio_iommu.h Eric Auger
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 02/15] linux-headers: update against 5.3-rc2 Eric Auger
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 03/15] virtio-iommu: Add skeleton Eric Auger
2019-08-15 13:54   ` Peter Xu
2019-08-29 12:18     ` Auger Eric
2019-08-30  1:26       ` Peter Xu
2019-08-30  8:12         ` Auger Eric
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 04/15] virtio-iommu: Decode the command payload Eric Auger
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 05/15] virtio-iommu: Add the iommu regions Eric Auger
2019-08-16  4:00   ` Peter Xu
2019-08-29 12:51     ` Auger Eric
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 06/15] virtio-iommu: Endpoint and domains structs and helpers Eric Auger
2019-08-16  4:17   ` Peter Xu
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 07/15] virtio-iommu: Implement attach/detach command Eric Auger
2019-08-16  4:27   ` Peter Xu
2019-08-29 14:24     ` Auger Eric
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 08/15] virtio-iommu: Implement map/unmap Eric Auger
2019-08-19  8:11   ` Peter Xu
2019-09-03 11:37     ` Auger Eric
2019-09-04  1:44       ` Peter Xu
2019-09-04  4:23         ` Tian, Kevin
2019-09-04  5:37           ` Peter Xu
2019-09-04  5:46             ` Tian, Kevin
2019-09-04  7:54               ` Auger Eric
2019-09-04  8:32                 ` Peter Xu
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 09/15] virtio-iommu: Implement translate Eric Auger
2019-08-19  8:24   ` Peter Xu
2019-09-03 11:45     ` Auger Eric
2019-09-04  1:58       ` Peter Xu
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 10/15] virtio-iommu: Implement probe request Eric Auger
2019-08-19 12:08   ` Peter Xu [this message]
2019-09-03 12:23     ` Auger Eric
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 11/15] virtio-iommu: Expose the IOAPIC MSI reserved region when relevant Eric Auger
2019-07-30 19:38   ` Michael S. Tsirkin
2019-07-30 23:20     ` Tian, Kevin
2019-07-31  9:05       ` Auger Eric
2019-07-31 19:25       ` Michael S. Tsirkin
2019-07-31 19:44         ` Auger Eric
2019-07-31 23:23           ` Tian, Kevin
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 12/15] virtio-iommu: Implement fault reporting Eric Auger
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 13/15] virtio_iommu: Handle reserved regions in translation process Eric Auger
2019-08-19 12:44   ` Peter Xu
2019-09-01  6:38   ` Michael S. Tsirkin
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 14/15] virtio-iommu-pci: Add virtio iommu pci support Eric Auger
2019-07-30 19:35   ` Michael S. Tsirkin
2019-08-01 12:15     ` Auger Eric
2019-08-01 13:06       ` Michael S. Tsirkin
2019-08-01 13:49         ` Auger Eric
2019-09-01  6:40           ` Michael S. Tsirkin
2019-09-04 14:19             ` Auger Eric
2019-09-04 21:36               ` Michael S. Tsirkin
2019-07-30 17:21 ` [Qemu-devel] [PATCH for-4.2 v10 15/15] hw/arm/virt: Add the virtio-iommu device tree mappings Eric Auger

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