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Date: Wed, 08 Apr 2009 08:12:16 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] start qemu failed with --enable-kvm -vga std
References: <fb7465350904072011r6e30db95y20c274c88cc9a29c@mail.gmail.com>
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To: qemu-devel@nongnu.org, Glauber Costa <glommer@redhat.com>

Peng Huang wrote:
> Hi,
>
> The HEAD version qemu can not execute a VM with --enable-kvm -vga std 
> or -vga vmware on kernel 2.6.29.1-46.fc11.x86_64. I found it is 
> because of qemu call cpu_register_physical_memory with a wrong size. 
> Below patch can fix it on my box. Please test it.

Glauber came up with a similar patch for kvm-userspace and is currently 
attempting to root cause the issue.

Regards,

Anthony Liguori

> Regards,
> Peng Huang
>  
>
> diff --git a/hw/pc.c b/hw/pc.c
> index f9cfd1f..7775c7b 100644
> --- a/hw/pc.c
> +++ b/hw/pc.c
> @@ -876,7 +876,7 @@ vga_bios_error:
>              exit(1);
>          }
>         /* Round up vga bios size to the next 2k boundary */
> -       vga_bios_size = (vga_bios_size + 2047) & ~2047;
> +       vga_bios_size = (vga_bios_size + 4095) & ~4095;
>         option_rom_start = 0xc0000 + vga_bios_size;
>  
>          /* setup basic memory access */
>