fantonifabio@tiscali.it
2013-Mar-01 13:16 UTC
[PATCH FOR 4.2] tools/libxl: Improve videoram setting
From: Fabio Fantoni <fabio.fantoni@heliman.it> - If videoram setting is less than 8 mb shows error and exit. - Added videoram setting for qemu upstream with cirrus (added in qemu 1.3). - Updated xl.cfg man. - Default and minimal videoram changed to 16 mb if stdvga is set and upstream qemu is being used. This is required by qemu 1.4 to avoid a xen memory error (qemu 1.3 doesn''t complain about it, probably buggy). Signed-off-by: Fabio Fantoni <fabio.fantoni@heliman.it> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- docs/man/xl.cfg.pod.5 | 14 +++++--------- tools/libxl/libxl_create.c | 20 ++++++++++++++++++-- tools/libxl/libxl_dm.c | 6 ++++++ 3 files changed, 29 insertions(+), 11 deletions(-) diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5 index a8b635b..4f7b583 100644 --- a/docs/man/xl.cfg.pod.5 +++ b/docs/man/xl.cfg.pod.5 @@ -739,19 +739,15 @@ in the B<VFB_SPEC_STRING> for configuring virtual frame buffer devices Sets the amount of RAM which the emulated video card will contain, which in turn limits the resolutions and bit depths which will be -available. This option is only available when using the B<stdvga> -option (see below). +available. The default amount of video ram for stdvga is 8MB which is sufficient -for e.g. 1600x1200 at 32bpp. +for e.g. 1600x1200 at 32bpp and videoram option is currently working +only when using the qemu-xen-traditional device-model. When using the emulated Cirrus graphics card (B<stdvga=0>) the amount of video ram is fixed at 4MB which is sufficient -for 1024x768 at 32 bpp. - -videoram option is currently only available when using the -qemu-xen-traditional device-model. Upstream qemu-xen device-model -currently doesn''t support changing the amount of video memory -for the emulated graphics device. +for 1024x768 at 32 bpp and videoram option is currently working +only when using the upstream qemu-xen device-model. =item B<stdvga=BOOLEAN> diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c index 89f4e0a..e9a5148 100644 --- a/tools/libxl/libxl_create.c +++ b/tools/libxl/libxl_create.c @@ -232,8 +232,24 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc, case LIBXL_DOMAIN_TYPE_HVM: if (b_info->shadow_memkb == LIBXL_MEMKB_DEFAULT) b_info->shadow_memkb = 0; - if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT) - b_info->video_memkb = 8 * 1024; + + if (b_info->u.hvm.vga.kind == LIBXL_VGA_INTERFACE_TYPE_STD && + b_info->device_model_version =+ LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN) { + if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT) + b_info->video_memkb = 16 * 1024; + else if (b_info->video_memkb < (16 * 1024) ){ + LOG(ERROR, + "videoram must be at least 16 mb with stdvga"); + return ERROR_INVAL; + } + } else if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT) + b_info->video_memkb = 8 * 1024; + else if (b_info->video_memkb < (8 * 1024) ){ + LOG(ERROR,"videoram must be at least 8 mb"); + return ERROR_INVAL; + } + if (b_info->u.hvm.timer_mode == LIBXL_TIMER_MODE_DEFAULT) b_info->u.hvm.timer_mode LIBXL_TIMER_MODE_NO_DELAY_FOR_MISSED_TICKS; diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c index 7662b3d..423e4a4 100644 --- a/tools/libxl/libxl_dm.c +++ b/tools/libxl/libxl_dm.c @@ -435,6 +435,12 @@ static char ** libxl__build_device_model_args_new(libxl__gc *gc, break; case LIBXL_VGA_INTERFACE_TYPE_CIRRUS: flexarray_vappend(dm_args, "-vga", "cirrus", NULL); + if (b_info->video_memkb) { + flexarray_vappend(dm_args, "-global", + libxl__sprintf(gc, "vga.vram_size_mb=%d", + libxl__sizekb_to_mb(b_info->video_memkb)), + NULL); + } break; } -- 1.7.9.5
Ian Jackson
2013-Mar-05 11:08 UTC
Re: [PATCH FOR 4.2] tools/libxl: Improve videoram setting
fantonifabio@tiscali.it writes ("[Xen-devel] [PATCH FOR 4.2] tools/libxl: Improve videoram setting"):> From: Fabio Fantoni <fabio.fantoni@heliman.it> > > - If videoram setting is less than 8 mb shows error and exit. > - Added videoram setting for qemu upstream with cirrus (added in qemu 1.3). > - Updated xl.cfg man. > - Default and minimal videoram changed to 16 mb if stdvga is set and upstream > qemu is being used. This is required by qemu 1.4 to avoid a xen memory error > (qemu 1.3 doesn''t complain about it, probably buggy). > > Signed-off-by: Fabio Fantoni <fabio.fantoni@heliman.it> > Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>Applied, thanks. I added a reference to the xen-unstable changeset to the commit message. Ian.