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Date: Wed, 8 Apr 2009 11:11:56 +0800
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From: Peng Huang <shawn.p.huang@gmail.com>
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Subject: [Qemu-devel] start qemu failed with --enable-kvm -vga std
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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.

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 */

--000e0cd32df07534590467027ef5
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Hi,<br><br>The HEAD version qemu can not execute a VM with --enable-kvm -vg=
a std or -vga vmware on kernel 2.6.29.1-46.fc11.x86_64. I found it is becau=
se of qemu call cpu_register_physical_memory with a wrong size. Below patch=
 can fix it on my box. Please test it.<br>
<br>Regards,<br>Peng Huang<br>=C2=A0<br><br>diff --git a/hw/pc.c b/hw/pc.c<=
br>index f9cfd1f..7775c7b 100644<br>--- a/hw/pc.c<br>+++ b/hw/pc.c<br>@@ -8=
76,7 +876,7 @@ vga_bios_error:<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 exit(1);<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0 }<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 /* Ro=
und up vga bios size to the next 2k boundary */<br>
-=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 vga_bios_size =3D (vga_bios_size + 20=
47) &amp; ~2047;<br>+=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 vga_bios_size =3D=
 (vga_bios_size + 4095) &amp; ~4095;<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 option_rom_start =3D 0xc0000 + vga_bios_size;<br>=C2=A0<br>=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 /* setup basic memory access */<=
br>
<br>

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