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Re: [Xen-devel] [PATCH v4 02/16] tools: Add vmware_hw support

On 09/11/14 17:09, Andrew Cooper wrote:
On 11/09/2014 19:36, Don Slutz wrote:
This is used to set HVM_PARAM_VMWARE_HW. It is set to the VMware
virtual hardware version.

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

If non-zero then
   default VGA to VMware's VGA.

Also now allows vga=vmware

Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
  docs/man/xl.cfg.pod.5               | 21 +++++++++++++++++++--
  docs/misc/hypervisor-cpuid.markdown | 29 +++++++++++++++++++++++++++++
  tools/libxc/xc_domain_restore.c     | 14 ++++++++++++++
  tools/libxc/xc_domain_save.c        | 11 +++++++++++
  tools/libxc/xg_save_restore.h       |  2 ++
  tools/libxl/libxl.h                 | 10 ++++++++++
  tools/libxl/libxl_create.c          |  4 +++-
  tools/libxl/libxl_dm.c              | 10 +++++++++-
  tools/libxl/libxl_dom.c             |  2 ++
  tools/libxl/libxl_types.idl         |  2 ++
  tools/libxl/xl_cmdimpl.c            | 11 ++++++++++-
  11 files changed, 111 insertions(+), 5 deletions(-)
  create mode 100644 docs/misc/hypervisor-cpuid.markdown

diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
index 517ae2f..367b401 100644
--- a/docs/man/xl.cfg.pod.5
+++ b/docs/man/xl.cfg.pod.5
@@ -1147,6 +1147,23 @@ some other Operating Systems and in some circumstance 
can prevent
  Xen's own paravirtualisation interfaces for HVM guests from being
+=item B<vmware_hw=NUMBER>
+Turns on or off the exposure of VMware cpuid.  The number is the
+VMware's hardware version number, where 0 is off.  If not zero it
+changes the default VGA to VMware's VGA.
+The hardware version number (vmware_hw) come 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_hw = 7.
=head3 Emulated VGA Graphics Device
@@ -1185,8 +1202,8 @@ This option is deprecated, use vga="stdvga" instead.
=item B<vga="STRING"> -Selects the emulated video card (none|stdvga|cirrus).
-The default is cirrus.
+Selects the emulated video card (none|stdvga|cirrus|vmware).
+The default is cirrus (or vmware if B<vmware_hw> is not zero).
=item B<vnc=BOOLEAN> diff --git a/docs/misc/hypervisor-cpuid.markdown b/docs/misc/hypervisor-cpuid.markdown
new file mode 100644
index 0000000..4199d57
--- /dev/null
+++ b/docs/misc/hypervisor-cpuid.markdown
@@ -0,0 +1,29 @@
+Hypervisor Cpuid
+The support of hypervisor cpuid leaves has not been agreed to.
+Other then the range 0x40000000 to 0x400000ff can be used by
+MicroSoft Hyper-V (AKA viridian) currently must be at 0x40000000.
+VMware currently must be at 0x40000000.
+KVM currently must be at 0x40000000 (from Seabios).
+Seabios will find Xen at 0x40000000, 0x40000100, 0x40000200 ..
Anything looking for Xen according to the Xen cpuid instructions in the
public header files will find Xen in this manner;  hvmloader and
HVMLinux to name but a few.  I don't think Seabios wants calling out

Perhaps "Xen can be found at the first otherwise unused 0x100 aligned
offset between 0x40000000 and 0x40010000"?

Looks fine to me.  Will change.
    -Don Slutz


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