Module Name: src
Committed By: bouyer
Date: Tue Oct 17 12:07:42 UTC 2023
Modified Files:
src/sys/arch/x86/include: genfb_machdep.h
src/sys/arch/x86/pci: pci_machdep.c
src/sys/arch/x86/x86: consinit.c genfb_machdep.c
src/sys/arch/xen/conf: files.xen
src/sys/arch/xen/x86: autoconf.c consinit.c
Added Files:
src/sys/arch/xen/xen: genfb_xen.c
Log Message:
Support non-VGA framebuffers for Xen dom0. This is mandatory for graphic
console on EFI-only hardware.
Add a xen_genfb_getbtinfo() function which will return a btinfo_framebuffer
structure, filled in with parameters provided by Xen
when runing as a Xen dom0, call xen_genfb_getbtinfo() instead of
lookup_bootinfo(BTINFO_FRAMEBUFFER) when adding properties to the
PCI graphic device (when genfb is attached) and in x86_genfb_init()
when genfb is used as console.
x86/x86/consinit.c: If running as a Xen dom0, use xen_genfb_getbtinfo()
to check if we have a genfb console
xen/x86/consinit.c: support genfb as possible console
xen/x86/consinit.c: use the hypervior IO as console until a better one
is found. If the hypervisor is using a serial port for boot messages,
we'll get NetBSD's boot message on the serial port too until
the real console takes over.
xen/x86/autoconf.c: rework device_register() to be closer to the x86 version.
Especially make sure that device_pci_register() is called.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/x86/include/genfb_machdep.h
cvs rdiff -u -r1.96 -r1.97 src/sys/arch/x86/pci/pci_machdep.c
cvs rdiff -u -r1.36 -r1.37 src/sys/arch/x86/x86/consinit.c
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/x86/x86/genfb_machdep.c
cvs rdiff -u -r1.187 -r1.188 src/sys/arch/xen/conf/files.xen
cvs rdiff -u -r1.25 -r1.26 src/sys/arch/xen/x86/autoconf.c
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/xen/x86/consinit.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/xen/xen/genfb_xen.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/x86/include/genfb_machdep.h
diff -u src/sys/arch/x86/include/genfb_machdep.h:1.6 src/sys/arch/x86/include/genfb_machdep.h:1.7
--- src/sys/arch/x86/include/genfb_machdep.h:1.6 Mon Oct 16 17:27:02 2023
+++ src/sys/arch/x86/include/genfb_machdep.h Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: genfb_machdep.h,v 1.6 2023/10/16 17:27:02 bouyer Exp $ */
+/* $NetBSD: genfb_machdep.h,v 1.7 2023/10/17 12:07:42 bouyer Exp $ */
/*-
* Copyright (c) 2009 Jared D. McNeill <jmcne...@invisible.ca>
@@ -34,6 +34,8 @@ int x86_genfb_cnattach(void);
void x86_genfb_set_console_dev(device_t);
void x86_genfb_ddb_trap_callback(int);
+const struct btinfo_framebuffer * xen_genfb_getbtinfo(void);
+
extern int acpi_md_vesa_modenum;
extern int acpi_md_vbios_reset;
extern struct vcons_screen x86_genfb_console_screen;
Index: src/sys/arch/x86/pci/pci_machdep.c
diff -u src/sys/arch/x86/pci/pci_machdep.c:1.96 src/sys/arch/x86/pci/pci_machdep.c:1.97
--- src/sys/arch/x86/pci/pci_machdep.c:1.96 Mon Oct 16 17:27:02 2023
+++ src/sys/arch/x86/pci/pci_machdep.c Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: pci_machdep.c,v 1.96 2023/10/16 17:27:02 bouyer Exp $ */
+/* $NetBSD: pci_machdep.c,v 1.97 2023/10/17 12:07:42 bouyer Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
@@ -73,7 +73,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.96 2023/10/16 17:27:02 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.97 2023/10/17 12:07:42 bouyer Exp $");
#include <sys/types.h>
#include <sys/param.h>
@@ -103,6 +103,8 @@ __KERNEL_RCSID(0, "$NetBSD: pci_machdep.
#include <dev/wsfb/genfbvar.h>
#include <arch/x86/include/genfb_machdep.h>
+#include <arch/xen/include/hypervisor.h>
+#include <arch/xen/include/xen.h>
#include <dev/ic/vgareg.h>
#include "acpica.h"
@@ -116,6 +118,7 @@ __KERNEL_RCSID(0, "$NetBSD: pci_machdep.
#include "pci.h"
#include "wsdisplay.h"
#include "com.h"
+#include "opt_xen.h"
#ifdef DDB
#include <machine/db_machdep.h>
@@ -1110,9 +1113,18 @@ populate_fbinfo(device_t dev, prop_dicti
#if NWSDISPLAY > 0 && NGENFB > 0
struct rasops_info *ri = &x86_genfb_console_screen.scr_ri;
#endif
- const void *fbptr = lookup_bootinfo(BTINFO_FRAMEBUFFER);
+ const void *fbptr = NULL;
struct btinfo_framebuffer fbinfo;
+
+#if NWSDISPLAY > 0 && NGENFB > 0 && defined(XEN) && defined(DOM0OPS)
+ if ((vm_guest == VM_GUEST_XENPVH || vm_guest == VM_GUEST_XENPV) &&
+ xendomain_is_dom0())
+ fbptr = xen_genfb_getbtinfo();
+#endif
+ if (fbptr == NULL)
+ fbptr = lookup_bootinfo(BTINFO_FRAMEBUFFER);
+
if (fbptr == NULL)
return;
Index: src/sys/arch/x86/x86/consinit.c
diff -u src/sys/arch/x86/x86/consinit.c:1.36 src/sys/arch/x86/x86/consinit.c:1.37
--- src/sys/arch/x86/x86/consinit.c:1.36 Fri Mar 24 12:28:42 2023
+++ src/sys/arch/x86/x86/consinit.c Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: consinit.c,v 1.36 2023/03/24 12:28:42 bouyer Exp $ */
+/* $NetBSD: consinit.c,v 1.37 2023/10/17 12:07:42 bouyer Exp $ */
/*
* Copyright (c) 1998
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.36 2023/03/24 12:28:42 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.37 2023/10/17 12:07:42 bouyer Exp $");
#include "opt_kgdb.h"
#include "opt_puc.h"
@@ -164,7 +164,7 @@ consinit(void)
{
const struct btinfo_console *consinfo;
#if (NGENFB > 0)
- const struct btinfo_framebuffer *fbinfo;
+ const struct btinfo_framebuffer *fbinfo = NULL;
#endif
static int initted;
#if (NCOM > 0)
@@ -189,7 +189,12 @@ consinit(void)
consinfo = &default_consinfo;
#if (NGENFB > 0)
- fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER);
+#if defined(XENPVH) && defined(DOM0OPS)
+ if (vm_guest == VM_GUEST_XENPVH && xendomain_is_dom0())
+ fbinfo = xen_genfb_getbtinfo();
+ else
+#endif /* XENPVHVM */
+ fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER);
#endif
if (!strcmp(consinfo->devname, "pc")) {
Index: src/sys/arch/x86/x86/genfb_machdep.c
diff -u src/sys/arch/x86/x86/genfb_machdep.c:1.21 src/sys/arch/x86/x86/genfb_machdep.c:1.22
--- src/sys/arch/x86/x86/genfb_machdep.c:1.21 Mon Oct 16 17:27:03 2023
+++ src/sys/arch/x86/x86/genfb_machdep.c Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: genfb_machdep.c,v 1.21 2023/10/16 17:27:03 bouyer Exp $ */
+/* $NetBSD: genfb_machdep.c,v 1.22 2023/10/17 12:07:42 bouyer Exp $ */
/*-
* Copyright (c) 2009 Jared D. McNeill <jmcne...@invisible.ca>
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfb_machdep.c,v 1.21 2023/10/16 17:27:03 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfb_machdep.c,v 1.22 2023/10/17 12:07:42 bouyer Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@@ -52,10 +52,13 @@ __KERNEL_RCSID(0, "$NetBSD: genfb_machde
#include <dev/wsfb/genfbvar.h>
#include <arch/x86/include/genfb_machdep.h>
+#include <arch/xen/include/hypervisor.h>
+#include <arch/xen/include/xen.h>
#include "wsdisplay.h"
#include "genfb.h"
#include "acpica.h"
+#include "opt_xen.h"
#if NWSDISPLAY > 0 && NGENFB > 0
struct vcons_screen x86_genfb_console_screen;
@@ -101,7 +104,7 @@ x86_genfb_init(void)
{
static int inited, attached;
struct rasops_info *ri = &x86_genfb_console_screen.scr_ri;
- const struct btinfo_framebuffer *fbinfo;
+ const struct btinfo_framebuffer *fbinfo = NULL;
bus_space_tag_t t = x86_bus_space_mem;
bus_space_handle_t h;
void *bits;
@@ -113,7 +116,14 @@ x86_genfb_init(void)
memset(&x86_genfb_console_screen, 0, sizeof(x86_genfb_console_screen));
- fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER);
+#if defined(XEN) && defined(DOM0OPS)
+ if ((vm_guest == VM_GUEST_XENPVH || vm_guest == VM_GUEST_XENPV) &&
+ xendomain_is_dom0())
+ fbinfo = xen_genfb_getbtinfo();
+#endif
+ if (fbinfo == NULL)
+ fbinfo = lookup_bootinfo(BTINFO_FRAMEBUFFER);
+
if (fbinfo == NULL || fbinfo->physaddr == 0)
return 0;
Index: src/sys/arch/xen/conf/files.xen
diff -u src/sys/arch/xen/conf/files.xen:1.187 src/sys/arch/xen/conf/files.xen:1.188
--- src/sys/arch/xen/conf/files.xen:1.187 Wed Aug 31 12:51:56 2022
+++ src/sys/arch/xen/conf/files.xen Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-# $NetBSD: files.xen,v 1.187 2022/08/31 12:51:56 bouyer Exp $
+# $NetBSD: files.xen,v 1.188 2023/10/17 12:07:42 bouyer Exp $
defflag opt_xen.h XEN XENPVH XENPVHVM PAE DOM0OPS
@@ -11,6 +11,7 @@ file arch/xen/xen/xenmem.c xen & !xenp
file arch/xen/x86/xen_mainbus.c xen
file arch/xen/xen/xen_clock.c xen
file arch/xen/x86/xen_bus_dma.c xen
+file arch/xen/xen/genfb_xen.c xen & genfb
file arch/xen/x86/pvh_consinit.c xenpvhvm
Index: src/sys/arch/xen/x86/autoconf.c
diff -u src/sys/arch/xen/x86/autoconf.c:1.25 src/sys/arch/xen/x86/autoconf.c:1.26
--- src/sys/arch/xen/x86/autoconf.c:1.25 Sat May 2 16:44:36 2020
+++ src/sys/arch/xen/x86/autoconf.c Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: autoconf.c,v 1.25 2020/05/02 16:44:36 bouyer Exp $ */
+/* $NetBSD: autoconf.c,v 1.26 2023/10/17 12:07:42 bouyer Exp $ */
/* NetBSD: autoconf.c,v 1.75 2003/12/30 12:33:22 pk Exp */
/*-
@@ -45,7 +45,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.25 2020/05/02 16:44:36 bouyer Exp $");
+__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.26 2023/10/17 12:07:42 bouyer Exp $");
#include "opt_xen.h"
#include "opt_multiprocessor.h"
@@ -82,6 +82,8 @@ __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v
#include <machine/pcb.h>
#include <machine/bootinfo.h>
+#include <x86/autoconf.h>
+
struct disklist *x86_alldisks;
int x86_ndisks;
int x86_found_console;
@@ -227,6 +229,12 @@ dom0_bootstatic_callback(struct nfs_disk
void
device_register(device_t dev, void *aux)
{
+ device_t isaboot, pciboot;
+ device_t found = NULL;
+
+ isaboot = device_isa_register(dev, aux);
+ pciboot = device_pci_register(dev, aux);
+
/*
* Handle network interfaces here, the attachment information is
* not available driver independently later.
@@ -250,60 +258,25 @@ device_register(device_t dev, void *aux)
if (strncmp(xcp.xcp_bootdev, device_xname(dev),
sizeof(xcp.xcp_bootdev)) == 0)
{
- goto found;
+ found = dev;
}
}
#endif
- if (device_class(dev) == DV_IFNET) {
- struct btinfo_netif *bin = lookup_bootinfo(BTINFO_NETIF);
- if (bin == NULL)
- return;
-
- /*
- * We don't check the driver name against the device name
- * passed by the boot ROM. The ROM should stay usable
- * if the driver gets obsoleted.
- * The physical attachment information (checked below)
- * must be sufficient to identify the device.
- */
-
- if (bin->bus == BI_BUS_ISA &&
- device_is_a(device_parent(dev), "isa")) {
- struct isa_attach_args *iaa = aux;
-
- /* compare IO base address */
- /* XXXJRT what about multiple I/O addrs? */
- if (iaa->ia_nio > 0 &&
- bin->addr.iobase == iaa->ia_io[0].ir_addr)
- goto found;
- }
-#if NPCI > 0
- if (bin->bus == BI_BUS_PCI &&
- device_is_a(device_parent(dev), "pci")) {
- struct pci_attach_args *paa = aux;
- int b, d, f;
-
- /*
- * Calculate BIOS representation of:
- *
- * <bus,device,function>
- *
- * and compare.
- */
- pci_decompose_tag(paa->pa_pc, paa->pa_tag, &b, &d, &f);
- if (bin->addr.tag == ((b << 8) | (d << 3) | f))
- goto found;
- }
-#endif
+ if (found == NULL) {
+ if (isaboot != NULL)
+ found = isaboot;
+ else if (pciboot != NULL)
+ found = pciboot;
}
- return;
-found:
- if (booted_device) {
- /* XXX should be a "panic()" */
- printf("warning: double match for boot device (%s, %s)\n",
- device_xname(booted_device), device_xname(dev));
- return;
+ if (found) {
+ if (booted_device) {
+ /* XXX should be a "panic()" */
+ printf("warning: double match for boot device (%s, %s)\n",
+ device_xname(booted_device), device_xname(dev));
+ return;
+ }
+ booted_device = found;
+ booted_method = "device/register";
}
- booted_device = dev;
}
Index: src/sys/arch/xen/x86/consinit.c
diff -u src/sys/arch/xen/x86/consinit.c:1.17 src/sys/arch/xen/x86/consinit.c:1.18
--- src/sys/arch/xen/x86/consinit.c:1.17 Sat Jul 22 19:13:17 2023
+++ src/sys/arch/xen/x86/consinit.c Tue Oct 17 12:07:42 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: consinit.c,v 1.17 2023/07/22 19:13:17 mrg Exp $ */
+/* $NetBSD: consinit.c,v 1.18 2023/10/17 12:07:42 bouyer Exp $ */
/* NetBSD: consinit.c,v 1.4 2004/03/13 17:31:34 bjh21 Exp */
/*
@@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.17 2023/07/22 19:13:17 mrg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.18 2023/10/17 12:07:42 bouyer Exp $");
#include "opt_kgdb.h"
@@ -37,11 +37,13 @@ __KERNEL_RCSID(0, "$NetBSD: consinit.c,v
#include <sys/device.h>
#include <sys/bus.h>
#include <machine/bootinfo.h>
+#include <arch/x86/include/genfb_machdep.h>
#include "xencons.h"
#include "vga.h"
#include "ega.h"
#include "pcdisplay.h"
+#include "genfb.h"
#if (NVGA > 0) || (NEGA > 0) || (NPCDISPLAY > 0)
#include <dev/ic/mc6845reg.h>
#include <dev/ic/pcdisplayvar.h>
@@ -70,6 +72,10 @@ __KERNEL_RCSID(0, "$NetBSD: consinit.c,v
#include <dev/usb/ukbdvar.h>
#endif
+#if (NGENFB > 0)
+#include <dev/wsfb/genfbvar.h>
+#endif
+
#include "opt_xen.h"
#if (XEN > 0)
#include <xen/xen.h>
@@ -146,14 +152,26 @@ consinit(void)
{
static int initted = 0;
union xen_cmdline_parseinfo xcp;
+#if (NGENFB > 0)
+ const struct btinfo_framebuffer *fbinfo = NULL;
+#endif
+
if (initted) {
return;
}
+
+ xen_early_console();
+
+#if (NGENFB > 0) && defined(DOM0OPS)
+ if (xendomain_is_dom0())
+ fbinfo = xen_genfb_getbtinfo();
+#endif
+
initted = 1;
xen_parse_cmdline(XEN_PARSE_CONSOLE, &xcp);
-#if (NVGA > 0)
+#if (NVGA > 0) || (NGENFB > 0)
if (xendomain_is_privileged()) {
#ifdef CONS_OVERRIDE
if (strcmp(default_consinfo.devname, "tty0") == 0 ||
@@ -163,9 +181,26 @@ consinit(void)
strcmp(xcp.xcp_console, "pc") == 0) { /* NetBSD name */
#endif /* CONS_OVERRIDE */
int error;
+
+#if (NGENFB > 0)
+ if (fbinfo && fbinfo->physaddr > 0) {
+ if (x86_genfb_cnattach() == -1) {
+ initted = 0; /* defer */
+ return;
+ }
+ genfb_cnattach();
+ goto dokbd;
+ } else {
+ genfb_disable();
+ }
+#endif
vga_cnattach(x86_bus_space_io, x86_bus_space_mem,
-1, 1);
+#if (NGENFB > 0)
+dokbd:
+#endif
error = ENODEV;
+
#if (NPCKBC > 0)
error = pckbc_cnattach(x86_bus_space_io, IO_KBD, KBCMDP,
PCKBC_KBD_SLOT, 0);
Added files:
Index: src/sys/arch/xen/xen/genfb_xen.c
diff -u /dev/null src/sys/arch/xen/xen/genfb_xen.c:1.1
--- /dev/null Tue Oct 17 12:07:42 2023
+++ src/sys/arch/xen/xen/genfb_xen.c Tue Oct 17 12:07:42 2023
@@ -0,0 +1,81 @@
+/* $NetBSD: genfb_xen.c,v 1.1 2023/10/17 12:07:42 bouyer Exp $ */
+
+/*
+ * Copyright (c) 2023 Manuel Bouyer.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: genfb_xen.c,v 1.1 2023/10/17 12:07:42 bouyer Exp $");
+
+
+#include <sys/device.h>
+#include <xen/include/xen.h>
+#include <xen/include/hypervisor.h>
+#include <xen/include/public/xen.h>
+#include <arch/x86/include/genfb_machdep.h>
+#include <arch/x86/include/bootinfo.h>
+
+static struct btinfo_framebuffer _xen_genfb_btinfo = {0};
+
+const struct btinfo_framebuffer *
+xen_genfb_getbtinfo(void)
+{
+ dom0_vga_console_info_t *d0_consi;
+
+ if (!xendomain_is_dom0())
+ return NULL;
+
+ if (_xen_genfb_btinfo.common.type == BTINFO_FRAMEBUFFER)
+ return &_xen_genfb_btinfo;
+
+ d0_consi = (void *)((char *)&xen_start_info +
+ xen_start_info.console.dom0.info_off);
+
+ if (d0_consi->video_type != XEN_VGATYPE_VESA_LFB &&
+ d0_consi->video_type != XEN_VGATYPE_EFI_LFB)
+ return NULL;
+
+ _xen_genfb_btinfo.common.type = BTINFO_FRAMEBUFFER;
+ _xen_genfb_btinfo.common.len = sizeof(struct btinfo_framebuffer);
+ _xen_genfb_btinfo.physaddr = d0_consi->u.vesa_lfb.lfb_base;
+ if (xen_start_info.console.dom0.info_size >=
+ offsetof(dom0_vga_console_info_t, u.vesa_lfb.ext_lfb_base)) {
+ _xen_genfb_btinfo.physaddr |=
+ (uint64_t)d0_consi->u.vesa_lfb.ext_lfb_base << 32;
+ }
+ _xen_genfb_btinfo.flags = 0;
+ _xen_genfb_btinfo.width = d0_consi->u.vesa_lfb.width;
+ _xen_genfb_btinfo.height = d0_consi->u.vesa_lfb.height;
+ _xen_genfb_btinfo.stride = d0_consi->u.vesa_lfb.bytes_per_line;
+ _xen_genfb_btinfo.depth = d0_consi->u.vesa_lfb.bits_per_pixel;
+ _xen_genfb_btinfo.rnum = d0_consi->u.vesa_lfb.red_pos;
+ _xen_genfb_btinfo.gnum = d0_consi->u.vesa_lfb.green_pos;
+ _xen_genfb_btinfo.bnum = d0_consi->u.vesa_lfb.blue_pos;
+ _xen_genfb_btinfo.rpos = d0_consi->u.vesa_lfb.red_size;
+ _xen_genfb_btinfo.gpos = d0_consi->u.vesa_lfb.green_size;
+ _xen_genfb_btinfo.bpos = d0_consi->u.vesa_lfb.blue_size;
+ _xen_genfb_btinfo.vbemode = 0; /* XXX */
+
+ return &_xen_genfb_btinfo;
+}
