[Qemu-devel] Re: Qemu+openMosix HOWTO

[Gabriel Ebner]

Hello,

Mulyadi Santosa wrote:
> diff -Naur ./linux/include/asm-i386/page.h
> ./linux-qemu/include/asm-i386/page.h---
> ./linux/include/asm-i386/page.h        2004-05-14 12:26:48.000000000
> +0700+++ ./linux-qemu/include/asm-i386/page.h        2004-05-17
> 17:14:50.000000000 +0700@@ -78,7 +78,7 @@  * and CONFIG_HIGHMEM64G options
> in the kernel configuration.  */
> 
> -#define __PAGE_OFFSET                (0xC0000000)
> +#define __PAGE_OFFSET                (0x90000000)

Is that still necessary?  From what I recall, qemu-fast can now run
unmodified operating systems as Fabrice wrote:

> 2) qemu-fast is being enhanced to run unpatched OSes and to support VESA 
> VBE graphics.
>
> The limitations of qemu-fast are that if data at addresses >= 0xc0000000 
> is used, then soft MMU is used in the corresponding translated block.
>
> Moreover, the guest user code has write access to the guest OS code and 
> also to the host QEMU code. It means that qemu-fast is not safe. I don't 
> know yet what is the best way to solve this issue.

        Gabriel.

-- 
Gabriel Ebner - reverse "address@hidden"