IOMMU: iommu_igfx is x86-only

In fact it's VT-d specific, but we don't have a way yet to build code
for just one vendor.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Paul Durrant <paul@xen.org>

diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index a0d366411a3da5c33bbe85ff33c8aa496020f232..e094fd1e3129dccf6699ac59b8f838b6069c1716 100644 (file)
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -32,7 +32,6 @@ bool_t __read_mostly iommu_enabled;
 bool_t __read_mostly force_iommu;
 bool_t __read_mostly iommu_verbose;
 bool __read_mostly iommu_quarantine = true;
-bool_t __read_mostly iommu_igfx = 1;
 bool_t __read_mostly iommu_snoop = 1;
 bool_t __read_mostly iommu_qinval = 1;
 bool_t __read_mostly iommu_crash_disable;
@@ -73,8 +72,10 @@ static int __init parse_iommu_param(const char *s)
             force_iommu = val;
         else if ( (val = parse_boolean("quarantine", s, ss)) >= 0 )
             iommu_quarantine = val;
+#ifdef CONFIG_X86
         else if ( (val = parse_boolean("igfx", s, ss)) >= 0 )
             iommu_igfx = val;
+#endif
         else if ( (val = parse_boolean("verbose", s, ss)) >= 0 )
             iommu_verbose = val;
         else if ( (val = parse_boolean("snoop", s, ss)) >= 0 )

diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c
index 680fe7d128630691323d5ba53a6d67e012bac534..8b7f48f68bb7af1e16dfe604fdbacccf39916d8e 100644 (file)
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -50,6 +50,8 @@ struct mapped_rmrr {
 /* Possible unfiltered LAPIC/MSI messages from untrusted sources? */
 bool __read_mostly untrusted_msi;
 
+bool __read_mostly iommu_igfx = true;
+
 int nr_iommus;
 
 static struct tasklet vtd_fault_tasklet;

diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index d9178c17fcfb024f9c82b85b03108333c3df29bf..43ee4764d6741d1806503a3344fdb93de0686132 100644 (file)
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -53,7 +53,7 @@ static inline bool_t dfn_eq(dfn_t x, dfn_t y)
 }
 
 extern bool_t iommu_enable, iommu_enabled;
-extern bool force_iommu, iommu_quarantine, iommu_verbose, iommu_igfx;
+extern bool force_iommu, iommu_quarantine, iommu_verbose;
 extern bool_t iommu_snoop, iommu_qinval;
 
 #ifdef CONFIG_X86
@@ -70,6 +70,7 @@ extern enum __packed iommu_intremap {
    iommu_intremap_restricted,
    iommu_intremap_full,
 } iommu_intremap;
+extern bool iommu_igfx;
 #else
 # define iommu_intremap false
 #endif