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From: Antonio Caggiano <antonio.caggiano@collabora.com>
To: qemu-devel@nongnu.org
Cc: kraxel@redhat.com, Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	vivek.kasireddy@intel.com
Subject: virtio-gpu: Mapping blob resources
Date: Fri, 23 Jul 2021 15:33:24 +0200	[thread overview]
Message-ID: <0eb17319-0b1d-5f43-f5d9-8ccadb0839ef@collabora.com> (raw)

Hi,

I am trying to implement blob resource mapping support, but there is 
something I still did not manage to figure out.

According to the spec, VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB maps a host-only 
blob resource into an offset in the host visible memory region. So, I 
believe I will need something like:

 > void *data = g->hotstmem[mblob.offset]; // pseudo-code
 > virgl_renderer_resource_map(..., &data, ...);

Questions:
- Does my approach make sense?
- How do I get an address to the host visible memory region?


Best regards,
Antonio


             reply	other threads:[~2021-07-23 13:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-23 13:33 Antonio Caggiano [this message]
2021-07-23 13:52 ` virtio-gpu: Mapping blob resources Gerd Hoffmann
2021-07-23 15:07   ` Antonio Caggiano
2021-07-26  8:19     ` Gerd Hoffmann
2021-07-26 14:32       ` Antonio Caggiano

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