From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@suse.com>
Subject: [PATCH] x86/HVM: support IOMMU-related Viridian CPUID
	bits
Date: Fri, 01 Aug 2014 14:48:30 +0100
Message-ID: <53DBB6CE020000780002875F@mail.emea.novell.com>
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="=__PartC4F641BE.1__="
Return-path: <xen-devel-bounces@lists.xen.org>
Received: from mail6.bemta14.messagelabs.com ([193.109.254.103])
	by lists.xen.org with esmtp (Exim 4.72)
	(envelope-from <JBeulich@suse.com>) id 1XDDCB-0005Fl-O6
	for xen-devel@lists.xenproject.org; Fri, 01 Aug 2014 13:48:31 +0000
List-Unsubscribe: <http://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <http://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Sender: xen-devel-bounces@lists.xen.org
Errors-To: xen-devel-bounces@lists.xen.org
To: xen-devel <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Paul Durrant <paul.durrant@citrix.com>, Keir Fraser <keir@xen.org>
List-Id: xen-devel@lists.xenproject.org

This is a MIME message. If you are reading this text, you may want to 
consider changing to a mail reader or gateway that understands how to 
properly handle MIME multipart messages.

--=__PartC4F641BE.1__=
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/xen/arch/x86/hvm/viridian.c
+++ b/xen/arch/x86/hvm/viridian.c
@@ -50,6 +50,8 @@
 #define CPUID6A_APIC_OVERLAY    (1 << 0)
 #define CPUID6A_MSR_BITMAPS     (1 << 1)
 #define CPUID6A_NESTED_PAGING   (1 << 3)
+#define CPUID6A_DMA_REMAP       (1 << 4)
+#define CPUID6A_INTR_REMAP      (1 << 5)
=20
 int cpuid_viridian_leaves(unsigned int leaf, unsigned int *eax,
                           unsigned int *ebx, unsigned int *ecx,
@@ -111,6 +113,12 @@ int cpuid_viridian_leaves(unsigned int l
             *eax |=3D CPUID6A_MSR_BITMAPS;
         if ( hap_enabled(d) )
             *eax |=3D CPUID6A_NESTED_PAGING;
+        if ( iommu_enabled )
+        {
+            *eax |=3D CPUID6A_DMA_REMAP;
+            if ( iommu_intremap )
+                *eax |=3D CPUID6A_INTR_REMAP;
+        }
         break;
     }
=20




--=__PartC4F641BE.1__=
Content-Type: text/plain; name="x86-viridian-CPUID-leaf-6-IOMMU.patch"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment; filename="x86-viridian-CPUID-leaf-6-IOMMU.patch"

x86/HVM: support IOMMU-related Viridian CPUID bits=0A=0ASigned-off-by: Jan =
Beulich <jbeulich@suse.com>=0A=0A--- a/xen/arch/x86/hvm/viridian.c=0A+++ =
b/xen/arch/x86/hvm/viridian.c=0A@@ -50,6 +50,8 @@=0A #define CPUID6A_APIC_O=
VERLAY    (1 << 0)=0A #define CPUID6A_MSR_BITMAPS     (1 << 1)=0A #define =
CPUID6A_NESTED_PAGING   (1 << 3)=0A+#define CPUID6A_DMA_REMAP       (1 << =
4)=0A+#define CPUID6A_INTR_REMAP      (1 << 5)=0A =0A int cpuid_viridian_le=
aves(unsigned int leaf, unsigned int *eax,=0A                           =
unsigned int *ebx, unsigned int *ecx,=0A@@ -111,6 +113,12 @@ int cpuid_viri=
dian_leaves(unsigned int l=0A             *eax |=3D CPUID6A_MSR_BITMAPS;=0A=
         if ( hap_enabled(d) )=0A             *eax |=3D CPUID6A_NESTED_PAGI=
NG;=0A+        if ( iommu_enabled )=0A+        {=0A+            *eax |=3D =
CPUID6A_DMA_REMAP;=0A+            if ( iommu_intremap )=0A+                =
*eax |=3D CPUID6A_INTR_REMAP;=0A+        }=0A         break;=0A     }=0A =
=0A
--=__PartC4F641BE.1__=
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel

--=__PartC4F641BE.1__=--