Re: [Qemu-discuss] Qemu "-cpu host" option

[Bandan Das]

> On Nov 26, 2015, at 12:33 PM, Abhinav Sharma <address@hidden> wrote:
> 
> Hi,
> What does Qemu do when invoked using "-cpu host" option that sets target CPU 
> same as the host CPU?
> 
> Is it that when this option is used Qemu performs no binary translation? 
> Because the target CPU is same as host CPU, code compiled for target CPU may 
> run directly on host CPU.
> 
> Or does Qemu discover the configuration of host CPU, automatically use the 
> most appropriate flag and cpu values, and use binary translation anyway?
> 
Yes. Unless you ask qemu to use kvm instead of tcg and then you will have it 
whatever way kvm is emulating those flags.

Bandan
> Thanks.
> 
> Regards,
> Abhinav Sharma