From: Juergen Gross Date: Wed, 6 Apr 2022 08:17:36 +0000 (+0200) Subject: tools/libs/light: set video_mem for PVH guests X-Git-Tag: archive/raspbian/4.16.1-1+rpi1^2~38^2~13 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=38f1fb90bb8793556947cf9ec984258bf12d4096;p=xen.git tools/libs/light: set video_mem for PVH guests The size of the video memory of PVH guests should be set to 0 in case no value has been specified. Doing not so will leave it to be -1, resulting in an additional 1 kB of RAM being advertised in the memory map (here the output of a PVH Mini-OS boot with 16 MB of RAM assigned): Memory map: 000000000000-0000010003ff: RAM 0000feff8000-0000feffffff: Reserved 0000fc008000-0000fc00803f: ACPI 0000fc000000-0000fc000fff: ACPI 0000fc001000-0000fc007fff: ACPI Signed-off-by: Juergen Gross Reviewed-by: Roger Pau Monné Acked-by: Anthony PERARD master commit: 0a20a53df158eb0724ce6dcd9de70cbdad547d6f master date: 2021-12-09 16:26:29 +0000 --- diff --git a/tools/libs/light/libxl_create.c b/tools/libs/light/libxl_create.c index 2890697de8..15ed021f41 100644 --- a/tools/libs/light/libxl_create.c +++ b/tools/libs/light/libxl_create.c @@ -427,6 +427,8 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc, break; case LIBXL_DOMAIN_TYPE_PVH: libxl_defbool_setdefault(&b_info->u.pvh.pvshim, false); + if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT) + b_info->video_memkb = 0; if (libxl_defbool_val(b_info->u.pvh.pvshim)) { if (!b_info->u.pvh.pvshim_path) b_info->u.pvh.pvshim_path =