Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-23 Thread Michael S. Tsirkin
On Tue, Feb 23, 2016 at 08:07:17AM +0100, Gerd Hoffmann wrote: > On Mo, 2016-02-22 at 22:12 +0200, Michael S. Tsirkin wrote: > > On Mon, Feb 22, 2016 at 03:26:56PM +0100, Gerd Hoffmann wrote: > > > On Mo, 2016-02-22 at 14:41 +0200, Michael S. Tsirkin wrote: > > > > Useful to send guest data back

Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Gerd Hoffmann
On Mo, 2016-02-22 at 22:12 +0200, Michael S. Tsirkin wrote: > On Mon, Feb 22, 2016 at 03:26:56PM +0100, Gerd Hoffmann wrote: > > On Mo, 2016-02-22 at 14:41 +0200, Michael S. Tsirkin wrote: > > > Useful to send guest data back to QEMU. > > > > Use case? > > > > cheers, > > Gerd > > VM GEN ID

Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Michael S. Tsirkin
On Mon, Feb 22, 2016 at 03:26:56PM +0100, Gerd Hoffmann wrote: > On Mo, 2016-02-22 at 14:41 +0200, Michael S. Tsirkin wrote: > > Useful to send guest data back to QEMU. > > Use case? > > cheers, > Gerd VM GEN ID at least wants to pass address of some blob in guest memory to host. Apparently,

Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Michael S. Tsirkin
On Mon, Feb 22, 2016 at 09:47:49AM -0500, Kevin O'Connor wrote: > On Mon, Feb 22, 2016 at 02:41:38PM +0200, Michael S. Tsirkin wrote: > > Useful to send guest data back to QEMU. > > The write interface is restricted to DMA. > > > > Suggested-by: Kevin O'Connor > >

Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Kevin O'Connor
On Mon, Feb 22, 2016 at 02:41:38PM +0200, Michael S. Tsirkin wrote: > Useful to send guest data back to QEMU. > The write interface is restricted to DMA. > > Suggested-by: Kevin O'Connor > Signed-off-by: Michael S. Tsirkin > --- > > hw/lm32/lm32_hwsetup.h

Re: [Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Gerd Hoffmann
On Mo, 2016-02-22 at 14:41 +0200, Michael S. Tsirkin wrote: > Useful to send guest data back to QEMU. Use case? cheers, Gerd

[Qemu-devel] [PATCH RFC] fw-cfg: support writeable blobs

2016-02-22 Thread Michael S. Tsirkin
Useful to send guest data back to QEMU. The write interface is restricted to DMA. Suggested-by: Kevin O'Connor Signed-off-by: Michael S. Tsirkin --- hw/lm32/lm32_hwsetup.h| 2 +- include/hw/loader.h | 4 ++-- include/hw/nvram/fw_cfg.h | 3 ++-