Re: [Xen-devel] qemu-xen-traditional: NOCACHE or CACHE_WB to open disk images for IDE

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Stefano Stabellini writes ("RE: [Xen-devel] qemu-xen-traditional: NOCACHE or 
CACHE_WB to open disk images for IDE"):
> I also thought that IDE also needs NOCACHE for safety but after a
> lengthy discussion, we came up with the conclusion that WRITEBACK is
> OK for IDE, see your message:
> 
> http://marc.info/?l=xen-devel&m=133311527009773
> 
> So I think we should revert 1307e42a4b3c1102d75401bc0cffb4eb6c9b7a38, I
> don't know why it was committed.

I was probably confused.  Sorry.  I have reverted it.

> Also it seems to me that libxl is not specifying cache=writeback for
> upstream QEMU, that means it is going to default to writethrough.
> I'll write a patch for that.

Right, thanks.

Ian.

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