Re: [Qemu-devel] Saving Sparc NVRAM contents between QEMU sessions

[Johannes Schindelin]

Hi,

On Thu, 8 Jun 2006, Armistead, Jason wrote:

> Is there any functionality, existing or planned or patched, to save Sparc
> NVRAM contents between QEMU sessions and reload it when QEMU starts up ?

AFICT, no.

> Obviously, writing a save / restore function for NVRAM is not terribly
> difficult, but how should it be approached "the QEMU way" ?

I think the spirit of QEmu would dictate to have a command line option 
pointing to a file. This file (provided it exists already) would be read 
in on startup, and written to, whenever the NVRAM changes (it would be 
best, probably to just fopen()/fseek()/fwrite()/fclose() rather than 
mmap()ing the file, since MinGW32 either does not support that, or not 
very well -- I don't remember which of these).

Ciao,
Dscho