[PATCH v12 3/8] tools: Add vmware_hwver support

[Don Slutz <don.slutz@gmail.com>]

From: Don Slutz <dslutz@verizon.com>

This is used to set xen_arch_domainconfig vmware_hw. It is set to
the emulated VMware virtual hardware version.

Currently 0, 3-4, 6-11 are good values.  However the code only
checks for == 0, != 0, or < 7.

Signed-off-by: Don Slutz <dslutz@verizon.com>
CC: Don Slutz <don.slutz@gmail.com>
---
v12:
    I'm not sure this hunk has anything to do with this patch, nor
    what the semantic difference between the old and new text is
    supposed to be.
      Dropped comment change.


v11:
  Dropped "If non-zero then default VGA to VMware's VGA"

v10:
    LIBXL_HAVE_LIBXL_VGA_INTERFACE_TYPE_VMWARE &
    LIBXL_HAVE_BUILDINFO_HVM_VMWARE_HWVER are arriving together
    a single umbrella could be used.
      Since I split the LIBXL_VGA_INTERFACE_TYPE_VMWARE into
      it's own patch, this is not longer true.
      But I did use 1 for the 2 c_info changes.
    Please use GCSPRINTF.
  Remove vga=vmware from here.

v9:
      I assumed that s/vmware_hw/vmware_hwver/ is not a big enough
      change to drop the Reviewed-by.  Did a minor edit to the
      commit message to add 7 to the list of values checked.

v7:
    Default handling of hvm.vga.kind bad.
      Fixed.
    Default of vmware_port should be based on vmware_hw.
      Done. 

v5:
      Anything looking for Xen according to the Xen cpuid instructions...
        Adjusted doc to new wording.

 docs/man/xl.cfg.pod.5       | 17 +++++++++++++++++
 tools/libxl/libxl_create.c  |  4 +++-
 tools/libxl/libxl_types.idl |  1 +
 tools/libxl/libxl_x86.c     |  3 +--
 tools/libxl/xl_cmdimpl.c    |  2 ++
 5 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
index 84078f6..4a01527 100644
--- a/docs/man/xl.cfg.pod.5
+++ b/docs/man/xl.cfg.pod.5
@@ -1348,6 +1348,23 @@ The viridian option can be specified as a boolean. A value of true (1)
 is equivalent to the list [ "defaults" ], and a value of false (0) is
 equivalent to an empty list.
 
+=item B<vmware_hwver=NUMBER>
+
+Turns on or off the exposure of VMware cpuid.  The number is
+VMware's hardware version number, where 0 is off.  A number >= 7
+is needed to enable exposure of VMware cpuid.
+
+The hardware version number (vmware_hwver) comes from VMware config files.
+
+=over 4
+
+In a .vmx it is virtualHW.version
+
+In a .ovf it is part of the value of vssd:VirtualSystemType.
+For vssd:VirtualSystemType == vmx-07, vmware_hwver = 7.
+
+=back
+
 =back
 
 =head3 Emulated VGA Graphics Device
diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index f366a09..02931dd 100644
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -464,7 +464,7 @@ 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, 9, sizeof(char *));
+        localents = libxl__calloc(gc, 11, sizeof(char *));
         i = 0;
         localents[i++] = "platform/acpi";
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi) ? "1" : "0";
@@ -472,6 +472,8 @@ int libxl__domain_build(libxl__gc *gc,
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi_s3) ? "1" : "0";
         localents[i++] = "platform/acpi_s4";
         localents[i++] = libxl_defbool_val(info->u.hvm.acpi_s4) ? "1" : "0";
+        localents[i++] = "platform/vmware_hwver";
+        localents[i++] = GCSPRINTF("%"PRId64, d_config->c_info.vmware_hwver);
         if (info->u.hvm.mmio_hole_memkb) {
             uint64_t max_ram_below_4g =
                 (1ULL << 32) - (info->u.hvm.mmio_hole_memkb << 10);
diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 534e7f0..6c0a1c7 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -346,6 +346,7 @@ libxl_domain_create_info = Struct("domain_create_info",[
     ("run_hotplug_scripts",libxl_defbool),
     ("pvh",          libxl_defbool),
     ("driver_domain",libxl_defbool),
+    ("vmware_hwver", uint64),
     ], dir=DIR_IN)
 
 libxl_domain_restore_params = Struct("domain_restore_params", [
diff --git a/tools/libxl/libxl_x86.c b/tools/libxl/libxl_x86.c
index 651b338..fd7dafa 100644
--- a/tools/libxl/libxl_x86.c
+++ b/tools/libxl/libxl_x86.c
@@ -5,8 +5,7 @@ int libxl__arch_domain_prepare_config(libxl__gc *gc,
                                       libxl_domain_config *d_config,
                                       xc_domain_configuration_t *xc_config)
 {
-    /* Note: will be changed in a later patch */
-    xc_config->vmware_hwver = 0;
+    xc_config->vmware_hwver = d_config->c_info.vmware_hwver;
     return 0;
 }
 
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index efb3651..138adcc 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -1387,6 +1387,8 @@ static void parse_config_data(const char *config_source,
     b_info->cmdline = parse_cmdline(config);
 
     xlu_cfg_get_defbool(config, "driver_domain", &c_info->driver_domain, 0);
+    if (!xlu_cfg_get_long(config, "vmware_hwver",  &l, 1))
+        c_info->vmware_hwver = l;
 
     switch(b_info->type) {
     case LIBXL_DOMAIN_TYPE_HVM:
-- 
1.8.3.1