Re: [Xen-devel] RIP register value in p2m_mem_access_check()

[Razvan Cojocaru <rzvncj@xxxxxxxxx>]

> v->arch.user_regs.eip is what you should look at. It's
> expected to be in sync with the VMCS value as long as
> nothing (e.g. emulation) modified the value. There's code in
> vmx_asm_vmexit_handler to sync the fields, and in
> vmx_asm_do_vmentry to sync them back in the opposite
> direction.
Thank you for your answer. Isn't it possible that emulation is indeed 
involved, since in p2m_mem_access_check() a page fault has occured, and 
RIP might point to _after_ the offending instruction?

Thanks,
Razvan Cojocaru



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