Add "virtio" vga which uses the virtio-vga device provided by upstream QEMU. It is VGA compatible and can be enlightened with virtio-gpu drivers which are available since Linux 4.4 and as a part of KVM Windows drivers.
Signed-off-by: Teddy Astie <[email protected]> --- v2: - rebased CHANGELOG.md CHANGELOG.md | 2 ++ docs/man/xl.cfg.5.pod.in | 6 +++++- tools/libs/light/libxl_dm.c | 3 +++ tools/libs/light/libxl_types.idl | 1 + tools/xl/xl_parse.c | 2 ++ 5 files changed, 13 insertions(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 3aaf598623..ed1ad61b0f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -9,6 +9,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) ### Changed ### Added +- On x86: + - Virtio-VGA display support for HVM guests ### Removed - On x86: diff --git a/docs/man/xl.cfg.5.pod.in b/docs/man/xl.cfg.5.pod.in index 27c455210b..5952c36886 100644 --- a/docs/man/xl.cfg.5.pod.in +++ b/docs/man/xl.cfg.5.pod.in @@ -2566,6 +2566,8 @@ default and minimum is 8 MB. For QXL vga, both the default and minimal are 128MB. If B<videoram> is set less than 128MB, an error will be triggered. +When using virtio, this parameter is ignored. + =item B<stdvga=BOOLEAN> Specifies a standard VGA card with VBE (VESA BIOS Extensions) as the @@ -2579,7 +2581,7 @@ B<This option is deprecated, use vga="stdvga" instead>. =item B<vga="STRING"> Selects the emulated video card. -Options are: B<none>, B<stdvga>, B<cirrus> and B<qxl>. +Options are: B<none>, B<stdvga>, B<cirrus>, B<qxl> and B<virtio>. The default is B<cirrus>. In general, QXL should work with the Spice remote display protocol @@ -2587,6 +2589,8 @@ for acceleration, and a QXL driver is necessary in the guest in that case. QXL can also work with the VNC protocol, but it will be like a standard VGA card without acceleration. +virtio uses the VGA compatible variant of virtio-gpu. + =item B<vnc=BOOLEAN> Allow access to the display via the VNC protocol. This enables the diff --git a/tools/libs/light/libxl_dm.c b/tools/libs/light/libxl_dm.c index 511ec76a65..a561ba695a 100644 --- a/tools/libs/light/libxl_dm.c +++ b/tools/libs/light/libxl_dm.c @@ -1210,6 +1210,9 @@ static int 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_VIRTIO: + flexarray_append_pair(dm_args, "-device", "virtio-vga"); + break; default: LOGD(ERROR, guest_domid, "Invalid emulated video card specified"); return ERROR_INVAL; diff --git a/tools/libs/light/libxl_types.idl b/tools/libs/light/libxl_types.idl index d64a573ff3..5e704ba25a 100644 --- a/tools/libs/light/libxl_types.idl +++ b/tools/libs/light/libxl_types.idl @@ -239,6 +239,7 @@ libxl_vga_interface_type = Enumeration("vga_interface_type", [ (2, "STD"), (3, "NONE"), (4, "QXL"), + (5, "VIRTIO"), ], init_val = "LIBXL_VGA_INTERFACE_TYPE_UNKNOWN") libxl_vendor_device = Enumeration("vendor_device", [ diff --git a/tools/xl/xl_parse.c b/tools/xl/xl_parse.c index af86d3186d..927adbd457 100644 --- a/tools/xl/xl_parse.c +++ b/tools/xl/xl_parse.c @@ -2863,6 +2863,8 @@ skip_usbdev: 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, "virtio")) { + b_info->u.hvm.vga.kind = LIBXL_VGA_INTERFACE_TYPE_VIRTIO; } else { fprintf(stderr, "Unknown vga \"%s\" specified\n", buf); exit(1); -- 2.51.2 -- Teddy Astie | Vates XCP-ng Developer XCP-ng & Xen Orchestra - Vates solutions web: https://vates.tech
