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Date: Mon, 15 May 2017 09:36:13 +0800
From: Fam Zheng <famz@redhat.com>
Message-ID: <20170515013613.GA23262@lemon.lan>
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Subject: Re: [Qemu-devel] Installing Windows with virtio (was: QEMU,
 increase graphics memory)
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To: "jenia.ivlev" <jenia.ivlev@gmail.com>
Cc: qemu-devel@nongnu.org

On Sun, 05/14 19:39, jenia.ivlev wrote:
> 
> I wanted to get more graphics memory on my QEMU Windows client.
> 
> I decided to install **Virtio** drivers for QEMU to achieve that purpose.
> 
> I create an *imagine_file* like this:
> 
> 
>     qemu-img create -f raw image_file 4G
> 
> 
> Also, I ran the windows-install like this:
> 
> 
>     qemu-system-x86_64 -enable-kvm -m 4G -cdrom "OS.iso" -boot order=c -drive file=image_file,if=virtio
> 
> 
> But when Windows ran, it didn't find any hard-drive (the *image_file*
> basically). It asked for some drivers instead. I think it wanted drivers
> to communicate with the hard-drive (*image_file*).
> 
> Running the install without Virtio works though:
> 
> 
>     qemu-system-x86_64 -enable-kvm -m 4G -cdrom "OS.iso" -boot order=d -drive file=image_file,format=raw
> 
> 
> The difference betweeen the two commands is:
> 
> 
>     order=c vs order=d
> 
> 
> and
> 
> 
>     if=virtio vs format=raw
> 
> 
> How do I install windows with Virtio in QEMU?
> 
> My original goal is to get 512 MB of graphics memory on Windows (running
> as a guest in QEMU). Unfortunately, by default  (no Virtio) I get 8MB of
> video memory which is not enough for my purposes
> 
> 
> Thanks
> 
> P.S. My OS is Arch-Linux

Since you use ArchLinux, wiki.archlinux.org is rather helpful, as always.  Yes,
you need virtio drivers:

https://wiki.archlinux.org/index.php/QEMU#New_Install_of_Windows


Fam