Re: [libvirt] [PATCH V2 2/6] qemu: Introduce vgamem attribute for video model

From: Zeng Junliang <zengjunliang(a)huawei.com&gt; This patch introduces vgamem attribute for video model, and sets its default value as qemu used. Parse it in two ways accroding to qemu startup parameters supported: -device or -vga. Signed-off-by: Zeng Junliang <zengjunliang(a)huawei.com&gt; Signed-off-by: Wang Rui <moon.wangrui(a)huawei.com&gt; --- src/conf/domain_conf.c | 48 ++++++++++++++++++++++++++++++- src/conf/domain_conf.h | 3 +- src/libvirt_private.syms | 1 + src/qemu/qemu_command.c | 75 ++++++++++++++++++++++++++++++++---------------- 4 files changed, 101 insertions(+), 26 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 63d97ec..d5a65c3 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -9328,6 +9328,20 @@ virDomainVideoDefaultRAM(const virDomainDef *def, } } +int +virDomainVideoDefaultVgamem(int type) +{ + switch (type) { + case VIR_DOMAIN_VIDEO_TYPE_VGA: + case VIR_DOMAIN_VIDEO_TYPE_VMVGA: + case VIR_DOMAIN_VIDEO_TYPE_QXL: + /* QEMU use 16M as default value for vga/vmvga/qxl device*/ + return 16 * 1024; + + default: + return 0; + } +} int virDomainVideoDefaultType(const virDomainDef *def) @@ -9413,6 +9427,7 @@ virDomainVideoDefParseXML(xmlNodePtr node, char *type = NULL; char *heads = NULL; char *vram = NULL; + char *vgamem = NULL; char *ram = NULL; char *primary = NULL; @@ -9422,11 +9437,12 @@ virDomainVideoDefParseXML(xmlNodePtr node, cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE) { - if (!type && !vram && !ram && !heads && + if (!type && !vram && !ram && !heads && !vgamem && xmlStrEqual(cur->name, BAD_CAST "model")) { type = virXMLPropString(cur, "type"); ram = virXMLPropString(cur, "ram"); vram = virXMLPropString(cur, "vram"); + vgamem = virXMLPropString(cur, "vgamem"); heads = virXMLPropString(cur, "heads"); if ((primary = virXMLPropString(cur, "primary")) != NULL) { @@ -9490,6 +9506,24 @@ virDomainVideoDefParseXML(xmlNodePtr node, def->vram = virDomainVideoDefaultRAM(dom, def->type); } + if (vgamem) { + if (def->type != VIR_DOMAIN_VIDEO_TYPE_VGA && + def->type != VIR_DOMAIN_VIDEO_TYPE_VMVGA && + def->type != VIR_DOMAIN_VIDEO_TYPE_QXL) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("vgamem attribute only supported " + "for type of vga, vmvga and qxl")); + goto error; + }

+ if (virStrToLong_ui(vgamem, NULL, 10, &def->vgamem) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("cannot parse video vgamem '%s'"), vgamem); + goto error; + } + } else { + def->vgamem = virDomainVideoDefaultVgamem(def->type); + } +