Re: [Xen-devel] [PATCH v10 01/10] tools: Add vga=vmware

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Fri, 2015-05-15 at 00:42 +0100, Andrew Cooper wrote:
> On 15/05/2015 00:34, Don Slutz wrote:
> > This allows use of QEMU's VMware emulated video card
> >
> > Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
> 
> Nack.
> 
> Qemu-trad is currently has remote code execution vulnerabilities in its
> vmware vga model.  CVE-2014-3689 amongst others.

Maybe we should only be exposing this new functionality with the
qemu-upstream model?

In general we've not been taking new development to -trad for some time.

> 
> Please fix those first before offering an option to configure it.
> 
> ~Andrew
> 
> > ---
> > v10: New at v10.
> >
> >   Was part of "tools: Add vmware_hwver support"
> >
> >  docs/man/xl.cfg.pod.5       | 2 +-
> >  tools/libxl/libxl.h         | 6 ++++++
> >  tools/libxl/libxl_dm.c      | 8 ++++++++
> >  tools/libxl/libxl_types.idl | 1 +
> >  tools/libxl/xl_cmdimpl.c    | 2 ++
> >  5 files changed, 18 insertions(+), 1 deletion(-)
> >
> > diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
> > index 8e4154f..ba78374 100644
> > --- a/docs/man/xl.cfg.pod.5
> > +++ b/docs/man/xl.cfg.pod.5
> > @@ -1374,7 +1374,7 @@ This option is deprecated, use vga="stdvga" instead.
> >  
> >  =item B<vga="STRING">
> >  
> > -Selects the emulated video card (none|stdvga|cirrus|qxl).
> > +Selects the emulated video card (none|stdvga|cirrus|qxl|vmware).
> >  The default is cirrus.
> >  
> >  In general, QXL should work with the Spice remote display protocol
> > diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
> > index 2ed7194..007a211 100644
> > --- a/tools/libxl/libxl.h
> > +++ b/tools/libxl/libxl.h
> > @@ -192,6 +192,12 @@
> >   * is not present, instead of ERROR_INVAL.
> >   */
> >  #define LIBXL_HAVE_ERROR_DOMAIN_NOTFOUND 1
> > +
> > +/*
> > + * The libxl_vga_interface_type has the type for vmware.
> > + */
> > +#define LIBXL_HAVE_LIBXL_VGA_INTERFACE_TYPE_VMWARE 1
> > +
> >  /*
> >   * libxl ABI compatibility
> >   *
> > diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
> > index 0c6408d..9a06f9b 100644
> > --- a/tools/libxl/libxl_dm.c
> > +++ b/tools/libxl/libxl_dm.c
> > @@ -251,6 +251,9 @@ static char ** 
> > libxl__build_device_model_args_old(libxl__gc *gc,
> >          case LIBXL_VGA_INTERFACE_TYPE_NONE:
> >              flexarray_append_pair(dm_args, "-vga", "none");
> >              break;
> > +        case LIBXL_VGA_INTERFACE_TYPE_VMWARE:
> > +            flexarray_append_pair(dm_args, "-vga", "vmware");
> > +            break;
> >          case LIBXL_VGA_INTERFACE_TYPE_QXL:
> >              break;
> >          }
> > @@ -633,6 +636,11 @@ static char ** 
> > libxl__build_device_model_args_new(libxl__gc *gc,
> >                  
> > GCSPRINTF("qxl-vga,vram_size_mb=%"PRIu64",ram_size_mb=%"PRIu64,
> >                  (b_info->video_memkb/2/1024), (b_info->video_memkb/2/1024) 
> > ) );
> >              break;
> > +        case LIBXL_VGA_INTERFACE_TYPE_VMWARE:
> > +            flexarray_append_pair(dm_args, "-device",
> > +                GCSPRINTF("vmware-svga,vgamem_mb=%d",
> > +                libxl__sizekb_to_mb(b_info->video_memkb)));
> > +            break;
> >          }
> >  
> >          if (b_info->u.hvm.boot) {
> > diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
> > index 65d479f..9d6ca45 100644
> > --- a/tools/libxl/libxl_types.idl
> > +++ b/tools/libxl/libxl_types.idl
> > @@ -184,6 +184,7 @@ libxl_vga_interface_type = 
> > Enumeration("vga_interface_type", [
> >      (2, "STD"),
> >      (3, "NONE"),
> >      (4, "QXL"),
> > +    (5, "VMWARE"),
> >      ], init_val = "LIBXL_VGA_INTERFACE_TYPE_CIRRUS")
> >  
> >  libxl_vendor_device = Enumeration("vendor_device", [
> > diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
> > index 373aa37..0e44b12 100644
> > --- a/tools/libxl/xl_cmdimpl.c
> > +++ b/tools/libxl/xl_cmdimpl.c
> > @@ -2117,6 +2117,8 @@ skip_vfb:
> >                  b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_NONE;
> >              } else if (!strcmp(buf, "qxl")) {
> >                  b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_QXL;
> > +            } else if (!strcmp(buf, "vmware")) {
> > +                b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_VMWARE;
> >              } else {
> >                  fprintf(stderr, "Unknown vga \"%s\" specified\n", buf);
> >                  exit(1);
> 



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