From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: [PATCH V13 7/7] tools/libxc: Allocate magic page for mem access on ARM Date: Thu, 12 Mar 2015 13:36:33 +0000 Message-ID: <1426167393.21353.425.camel@citrix.com> References: <1425677073-13729-1-git-send-email-tklengyel@sec.in.tum.de> <1425677073-13729-8-git-send-email-tklengyel@sec.in.tum.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1425677073-13729-8-git-send-email-tklengyel@sec.in.tum.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Tamas K Lengyel Cc: wei.liu2@citrix.com, stefano.stabellini@eu.citrix.com, ian.jackson@eu.citrix.com, julien.grall@linaro.org, tim@xen.org, xen-devel@lists.xen.org, stefano.stabellini@citrix.com, jbeulich@suse.com, keir@xen.org List-Id: xen-devel@lists.xenproject.org On Fri, 2015-03-06 at 22:24 +0100, Tamas K Lengyel wrote: > Signed-off-by: Tamas K Lengyel > Reviewed-by: Julien Grall > Acked-by: Stefano Stabellini Acked-by: Ian Campbell > --- > tools/libxc/xc_dom_arm.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c > index c7feca7..aaf835c 100644 > --- a/tools/libxc/xc_dom_arm.c > +++ b/tools/libxc/xc_dom_arm.c > @@ -26,9 +26,10 @@ > #include "xg_private.h" > #include "xc_dom.h" > > -#define NR_MAGIC_PAGES 2 > +#define NR_MAGIC_PAGES 3 > #define CONSOLE_PFN_OFFSET 0 > #define XENSTORE_PFN_OFFSET 1 > +#define MEMACCESS_PFN_OFFSET 2 > > #define LPAE_SHIFT 9 > > @@ -87,10 +88,13 @@ static int alloc_magic_pages(struct xc_dom_image *dom) > > xc_clear_domain_page(dom->xch, dom->guest_domid, dom->console_pfn); > xc_clear_domain_page(dom->xch, dom->guest_domid, dom->xenstore_pfn); > + xc_clear_domain_page(dom->xch, dom->guest_domid, base + MEMACCESS_PFN_OFFSET); > xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_CONSOLE_PFN, > dom->console_pfn); > xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_STORE_PFN, > dom->xenstore_pfn); > + xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_ACCESS_RING_PFN, > + base + MEMACCESS_PFN_OFFSET); > /* allocated by toolstack */ > xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_CONSOLE_EVTCHN, > dom->console_evtchn);