From 4f744670a31880be376f883c72a4f272f8942c5c Mon Sep 17 00:00:00 2001
From: Arianna Avanzini <avanzini.arianna@gmail.com>
Date: Sat, 30 Aug 2014 18:29:40 +0200
Subject: [PATCH] xen/common: add ARM stub for the function
 memory_type_changed()

MTRR-related code is not available for the ARM architecture. Given
that the memory_type_changed() function would be called also from
common code, its invocation is currently ifdef'd out to be only
compiled in on an x86 machine. This commit adds an empty stub for ARM.

Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Acked-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Acked-by: Julien Grall <julien.grall@citrix.com>
Cc: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Paolo Valente <paolo.valente@unimore.it>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Eric Trudeau <etrudeau@broadcom.com>
Cc: Viktor Kleinik <viktor.kleinik@globallogic.com>
Cc: Andrii Tseglytskyi <andrii.tseglytskyi@globallogic.com>
---
 xen/arch/arm/p2m.c        | 4 ++++
 xen/common/domctl.c       | 2 --
 xen/include/asm-arm/p2m.h | 2 ++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index ede839da60..05d83b14cb 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -47,6 +47,10 @@ void p2m_dump_info(struct domain *d)
     spin_unlock(&p2m->lock);
 }
 
+void memory_type_changed(struct domain *d)
+{
+}
+
 void dump_p2m_lookup(struct domain *d, paddr_t addr)
 {
     struct p2m_domain *p2m = &d->arch.p2m;
diff --git a/xen/common/domctl.c b/xen/common/domctl.c
index c326aba255..24102c0858 100644
--- a/xen/common/domctl.c
+++ b/xen/common/domctl.c
@@ -897,10 +897,8 @@ long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl)
             ret = iomem_permit_access(d, mfn, mfn + nr_mfns - 1);
         else
             ret = iomem_deny_access(d, mfn, mfn + nr_mfns - 1);
-#ifdef CONFIG_X86
         if ( !ret )
             memory_type_changed(d);
-#endif
     }
     break;
 
diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
index 06c93a04a5..13fea364ed 100644
--- a/xen/include/asm-arm/p2m.h
+++ b/xen/include/asm-arm/p2m.h
@@ -5,6 +5,8 @@
 
 struct domain;
 
+extern void memory_type_changed(struct domain *);
+
 /* Per-p2m-table state */
 struct p2m_domain {
     /* Lock that protects updates to the p2m */
-- 
2.39.5