Re: [edk2] [Qemu-devel] [edk2 PATCH] OvmfPkg: split the variable store to a separate file

Subject: Re: [edk2] [Qemu-devel] [edk2 PATCH] OvmfPkg: split the variable store to a separate file

From: Jordan Justen <>

To: Eric Blake <>

Date: 2013-11-22 21:18:32

On Fri, Nov 22, 2013 at 12:54 PM, Eric Blake  wrote:
> On 11/22/2013 01:51 PM, Jordan Justen wrote:
>> Tangentially related idea: if the user specifies -pflash to a
>> non-existent file, then QEMU could copy 'pflash-$(arch).bin' from the
>> roms folder into that file, and then the use it for the flash. It
>> could make using a flash almost as easy as using the default bios.
> But that image won't be auto-updated the next time the master is
> updated.

Yes. We've decided to call that a feature. :)

> Besides, under sVirt protections of libvirt, libvirt would
> have to pre-create the file (because libvirt intentionally denies qemu
> the ability to create files), so libvirt would have to be aware of the
> default. It's not much harder to make libvirt aware of handling a split
> image, and a split image is easier to handle than having to copy the
> default into a destination.

Well, admittedly, this idea is to optimize for qemu command line
ease-of-use. So I seem to be targeting a niche market. :) But I still
like to run qemu directly.


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