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

[Paul Brook]

On Thursday 14 May 2009, address@hidden wrote:
> > Which mode of Qemu operations do you refer to? if you refer to full
> > MMU emulation (no KVM or kqemu involved then), then intercepting
> > syscall is basically intercepting interrupt 80 hex or SYSENTER/SYSCALL
> > into host user mode instruction during code translation.
>
> Ok, I refer to full emulation.
> When QEMU intercepts a system call what does it do? What type of
> translation or modification does it perform?

It does exactly the same as real hardware.

Paul