Re: [Qemu-devel] How does a system call work on QEMU?

[grisu46]

Avi Kivity ha scritto:
> grisu46 wrote:
> > > No.  Look at target-i386/translate.c, case 0x105 for syscall 
> > > emulation.  Eventually it ends up calling helper_syscall().
> >
> > Simplify?
> > I am a newbie.
>
> Sorry, you're on your own.  I can give you pointers but it's up to you 
> to follow them.  If you're serious about understanding qemu you should 
> be prepared a lot of time reading the source code and processor 
> documentation.
I would like to know how a virtualization program can perform a 
sensitive but not privileged operation. I learn about Xen and I like to 
understand (no deep details need) differences between Xen 
paravirtualization and QEMU emulator.

Thanks
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