A subsequent patch will introduce a new scheme to allow an emulator to
map ioreq server pages directly from Xen rather than the guest P2M.
This patch lays the groundwork for that change by deferring mapping of
gfns until their values are requested by an emulator. To that end, the
pad field of the
>>> On 18.09.17 at 17:31, wrote:
> --- a/xen/arch/x86/hvm/ioreq.c
> +++ b/xen/arch/x86/hvm/ioreq.c
> @@ -354,6 +354,9 @@ static void hvm_update_ioreq_evtchn(struct
> hvm_ioreq_server *s,
> }
> }
>
> +#define HANDLE_BUFIOREQ(s) \
> +(s->bufioreq_handling != HVM_IOREQSRV_BUFIOREQ_OFF)
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: 25 September 2017 17:00
> To: Paul Durrant
> Cc: Andrew Cooper ; George Dunlap
> ; Ian Jackson ;
> Stefano Stabellini ; xen-de...@lists.xenproject.org;
> Konrad Rzeszutek Wilk ; Tim (Xen.org)
>
> Subject: Re: [PAT
