Xen devel - Feb 2013 - xc_domain_hvm_getcontext_partial(... CPU ...), the RIP register, and mem_event

Hello,

assuming that the VCPU is paused while waiting for userspace to respond 
to a page fault mem_event, and userspace calls libxc''s 
xc_domain_hvm_getcontext_partial(... CPU ...) and tries to inspect RIP, 
is this a safe thing to do? Is RIP''s value guaranteed to be safe to 
inspect in this context?

Thanks,
Razvan Cojocaru

At 18:08 +0200 on 25 Feb (1361815691), Razvan Cojocaru
wrote:
> Hello,
> 
> assuming that the VCPU is paused while waiting for userspace to respond 
> to a page fault mem_event, and userspace calls libxc''s 
> xc_domain_hvm_getcontext_partial(... CPU ...) and tries to inspect RIP, 
> is this a safe thing to do? Is RIP''s value guaranteed to be safe
to
> inspect in this context?
Yes.

Cheers,

Tim.