[RFC 3/7] x86/iommu: iommu_igfx, iommu_qinval and iommu_snoop are VT-d specific

[Xenia Ragiadakou <burzalodowa@xxxxxxxxx>]

Use CONFIG_INTEL_VTD to guard their usage in common code.

No functional change intended.

Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
---
 xen/drivers/passthrough/iommu.c | 4 +++-
 xen/include/xen/iommu.h         | 6 +++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index 1a02fdc453..dcb5ec49ac 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -82,11 +82,13 @@ static int __init cf_check parse_iommu_param(const char *s)
         else if ( ss == s + 23 && !strncmp(s, "quarantine=scratch-page", 23) )
             iommu_quarantine = IOMMU_quarantine_scratch_page;
 #endif
-#ifdef CONFIG_X86
+#ifdef CONFIG_INTEL_VTD
         else if ( (val = parse_boolean("igfx", s, ss)) >= 0 )
             iommu_igfx = val;
         else if ( (val = parse_boolean("qinval", s, ss)) >= 0 )
             iommu_qinval = val;
+#endif
+#ifdef CONFIG_X86
         else if ( (val = parse_boolean("superpages", s, ss)) >= 0 )
             iommu_superpages = val;
 #endif
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index 6b06732792..d9285a7760 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -74,9 +74,13 @@ extern enum __packed iommu_intremap {
    iommu_intremap_restricted,
    iommu_intremap_full,
 } iommu_intremap;
-extern bool iommu_igfx, iommu_qinval, iommu_snoop;
 #else
 # define iommu_intremap false
+#endif
+
+#ifdef CONFIG_INTEL_VTD
+extern bool iommu_igfx, iommu_qinval, iommu_snoop;
+#else
 # define iommu_snoop false
 #endif
 
-- 
2.37.2