[Qemu-devel] Re: [PATCH 0/9] S390x KVM support

[Avi Kivity]

On 10/22/2009 12:20 PM, Carsten Otte wrote:
> Avi Kivity wrote:
> > gdb is hardly performance critical.  Is that the only reason for the 
> > change?
> Right, gdb is not performance critical. gdb is the reason for moving 
> it out of the union, performance is the reason for having it in 
> kvm_run at all.
> There's only more reason to it: with a little tweaking in kuli, we'll 
> be able to get rid of KVM_S390_SET_INITIAL_PSW ioctl with this change. 
> That removes one oddity that makes us different from other platforms.

In fact qemu/x86 does a KVM_SET_SREGS (which updates pc) on reset.

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