Hi Bharat,
On 3/27/20 6:13 AM, Bharat Bhushan wrote:
> Hi Eric,
>
>> -Original Message-
>> From: Auger Eric
>> Sent: Thursday, March 26, 2020 9:22 PM
>> To: Bharat Bhushan ; peter.mayd...@linaro.org;
>> pet...@redhat.com; eric.auger@gmail.com; alex.william...@redhat.com;
>> kevin.t...@intel.com; m...@redhat.com; Tomasz Nowicki [C]
>> ; drjo...@redhat.com; linuc.dec...@gmail.com; qemu-
>> de...@nongnu.org; qemu-...@nongnu.org; bharatb.li...@gmail.com; jean-
>> phili...@linaro.org; yang.zh...@intel.com
>> Subject: [EXT] Re: [PATCH v9 4/9] virtio-iommu: set supported page size mask
>>
>> External Email
>>
>> --
>> Hi Bharat,
>>
>> On 3/23/20 9:46 AM, Bharat Bhushan wrote:
>>> Add optional interface to set page size mask.
>>> Currently this is set global configuration and not per endpoint.
>> This allows to override the page size mask per end-point?
>
> This patch adds per endpoint page-size-mask configuration in addition to
> global page-size-mask.
> endpoint page-size-mask will override global page-size-mask configuration for
> that endpoint.
Yes my comment was a suggestion for commit msg rephrasing. Sorry if it
was unclear. The above text sounds clearer.
thanks
Eric
>
> Thanks
> -Bharat
>
>>>
>>> Signed-off-by: Bharat Bhushan
>>> ---
>>> include/hw/virtio/virtio-iommu.h | 1 +
>>> hw/virtio/virtio-iommu.c | 9 +
>>> 2 files changed, 10 insertions(+)
>>>
>>> diff --git a/include/hw/virtio/virtio-iommu.h
>>> b/include/hw/virtio/virtio-iommu.h
>>> index 6f67f1020a..4efa09610a 100644
>>> --- a/include/hw/virtio/virtio-iommu.h
>>> +++ b/include/hw/virtio/virtio-iommu.h
>>> @@ -35,6 +35,7 @@ typedef struct IOMMUDevice {
>>> void *viommu;
>>> PCIBus *bus;
>>> int devfn;
>>> +uint64_t page_size_mask;
>>> IOMMUMemoryRegion iommu_mr;
>>> AddressSpace as;
>>> } IOMMUDevice;
>>> diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index
>>> 4cee8083bc..a28818202c 100644
>>> --- a/hw/virtio/virtio-iommu.c
>>> +++ b/hw/virtio/virtio-iommu.c
>>> @@ -650,6 +650,14 @@ static gint int_cmp(gconstpointer a, gconstpointer b,
>> gpointer user_data)
>>> return (ua > ub) - (ua < ub);
>>> }
>>>
>>> +static void virtio_iommu_set_page_size_mask(IOMMUMemoryRegion *mr,
>>> +uint64_t page_size_mask)
>>> +{
>>> +IOMMUDevice *sdev = container_of(mr, IOMMUDevice, iommu_mr);
>>> +
>>> +sdev->page_size_mask = page_size_mask; }
>>> +
>>> static void virtio_iommu_device_realize(DeviceState *dev, Error
>>> **errp) {
>>> VirtIODevice *vdev = VIRTIO_DEVICE(dev); @@ -865,6 +873,7 @@
>>> static void virtio_iommu_memory_region_class_init(ObjectClass *klass,
>>> IOMMUMemoryRegionClass *imrc =
>> IOMMU_MEMORY_REGION_CLASS(klass);
>>>
>>> imrc->translate = virtio_iommu_translate;
>>> +imrc->iommu_set_page_size_mask = virtio_iommu_set_page_size_mask;
>>> }
>>>
>>> static const TypeInfo virtio_iommu_info = {
>>>
>> Thanks
>>
>> Eric
>
>
