[Xen-devel] [PATCH 14 of 14 V3] libxl: Introduce a new guest config file parameter

[Wei Wang <wei.wang2@xxxxxxx>]

# HG changeset patch
# User Wei Wang <wei.wang2@xxxxxxx>
# Date 1326213623 -3600
# Node ID 39eb093ea89eeaa4dbff29439499f2a289291ff0
# Parent  9e89b6485b6c91a8d563c46c47a8d768eee7d1f2
libxl: Introduce a new guest config file parameter
Use iommu = {1,0} to enable or disable guest iommu emulation.
Default value is 0.

Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>

diff -r 9e89b6485b6c -r 39eb093ea89e tools/libxl/libxl_create.c
--- a/tools/libxl/libxl_create.c        Tue Jan 10 17:40:20 2012 +0100
+++ b/tools/libxl/libxl_create.c        Tue Jan 10 17:40:23 2012 +0100
@@ -99,6 +99,7 @@ int libxl_init_build_info(libxl_ctx *ctx
         b_info->u.hvm.vpt_align = 1;
         b_info->u.hvm.timer_mode = 1;
         b_info->u.hvm.nested_hvm = 0;
+        b_info->u.hvm.iommu = 0;
         break;
     case LIBXL_DOMAIN_TYPE_PV:
         b_info->u.pv.slack_memkb = 8 * 1024;
@@ -189,13 +190,15 @@ int libxl__domain_build(libxl__gc *gc,
         vments[4] = "start_time";
         vments[5] = libxl__sprintf(gc, "%lu.%02d", 
start_time.tv_sec,(int)start_time.tv_usec/10000);
 
-        localents = libxl__calloc(gc, 7, sizeof(char *));
+        localents = libxl__calloc(gc, 9, sizeof(char *));
         localents[0] = "platform/acpi";
         localents[1] = (info->u.hvm.acpi) ? "1" : "0";
         localents[2] = "platform/acpi_s3";
         localents[3] = (info->u.hvm.acpi_s3) ? "1" : "0";
         localents[4] = "platform/acpi_s4";
         localents[5] = (info->u.hvm.acpi_s4) ? "1" : "0";
+        localents[6] = "iommu";
+        localents[7] = (info->u.hvm.iommu) ? "1" : "0";
 
         break;
     case LIBXL_DOMAIN_TYPE_PV:
diff -r 9e89b6485b6c -r 39eb093ea89e tools/libxl/libxl_types.idl
--- a/tools/libxl/libxl_types.idl       Tue Jan 10 17:40:20 2012 +0100
+++ b/tools/libxl/libxl_types.idl       Tue Jan 10 17:40:23 2012 +0100
@@ -184,6 +184,7 @@ libxl_domain_build_info = Struct("domain
                                        ("vpt_align", bool),
                                        ("timer_mode", integer),
                                        ("nested_hvm", bool),
+                                       ("iommu", bool),
                                        ])),
                  ("pv", Struct(None, [("kernel", libxl_file_reference),
                                       ("slack_memkb", uint32),
diff -r 9e89b6485b6c -r 39eb093ea89e tools/libxl/xl_cmdimpl.c
--- a/tools/libxl/xl_cmdimpl.c  Tue Jan 10 17:40:20 2012 +0100
+++ b/tools/libxl/xl_cmdimpl.c  Tue Jan 10 17:40:23 2012 +0100
@@ -360,6 +360,7 @@ static void printf_info(int domid,
         printf("\t\t\t(vpt_align %d)\n", b_info->u.hvm.vpt_align);
         printf("\t\t\t(timer_mode %d)\n", b_info->u.hvm.timer_mode);
         printf("\t\t\t(nestedhvm %d)\n", b_info->u.hvm.nested_hvm);
+        printf("\t\t\t(iommu %d)\n", b_info->u.hvm.iommu);
 
         printf("\t\t\t(device_model %s)\n", dm_info->device_model ? : 
"default");
         printf("\t\t\t(videoram %d)\n", dm_info->videoram);
@@ -766,6 +767,8 @@ static void parse_config_data(const char
             b_info->u.hvm.timer_mode = l;
         if (!xlu_cfg_get_long (config, "nestedhvm", &l, 0))
             b_info->u.hvm.nested_hvm = l;
+        if (!xlu_cfg_get_long (config, "iommu", &l, 0))
+            b_info->u.hvm.iommu = l;
         break;
     case LIBXL_DOMAIN_TYPE_PV:
     {


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