> Attached is a cleaned up version of the patch which doesn't add to any
> existing structs now. Let me know if this is closer to what you had in
> mind.
>
> I don't think this driver is usable on non-EFI FreeBSD yet. They have a
> new VT console driver, but I'm not sure their loader does video mode
> passthrough outside of EFI. I'm sure it will in the future, probably
> sometime in 11.X.
>
> --
> Kris Moore
> PC-BSD Software
> iXsystems
>
>
> patch-grub-efi-framebuffer
>
>
> From 997363ec7698f34d74769960c4e76cf8b369052e Mon Sep 17 00:00:00 2001
> From: Kris Moore <k...@pcbsd.org>
> Date: Tue, 30 Dec 2014 14:34:58 -0500
> Subject: [PATCH] Add the patch for FreeBSD UEFI booting / framebuffer
> passthrough, add fixes to ACPI environment variables while here
>
> ---
> ChangeLog | 9 +++
> grub-core/loader/i386/bsd.c | 134
> +++++++++++++++++++++++++++++++++++
> include/grub/i386/bsd.h | 1 +
> include/grub/i386/freebsd_bootinfo.h | 33 +++++++++
> 4 files changed, 177 insertions(+)
> create mode 100644 include/grub/i386/freebsd_bootinfo.h
>
> diff --git ChangeLog ChangeLog
> index c38917b..b717a2d 100644
> --- ChangeLog
> +++ ChangeLog
> @@ -1,3 +1,12 @@
> +2014-12-30 Kris Moore <k...@pcbsd.org>
> + * grub-core/loader/i386/bsd.c: Set FreeBSD specific ACPI hints when
> booting
> + in EFI mode
> + * grub-core/loader/i386/bsd.c: Add default FreeBSD EFI video mode, and
> + structure to pass information into EFI booted kernel
> + * include/grub/i386/bsd.h: Include new freebsd_bootinfo.h
> + * include/grub/i386/freebsd_bootinfo.h: Add grub_freebsd_btinfo_framebuf
> + structure for FreeBSD EFI framebuffer passthrough
> +
> 2014-12-09 Andrei Borzenkov <arvidj...@gmail.com>
>
> * grub-core/term/serial.c (grub_cmd_serial): Fix --rtscts
> diff --git grub-core/loader/i386/bsd.c grub-core/loader/i386/bsd.c
> index 8f691e0..9d51cff 100644
> --- grub-core/loader/i386/bsd.c
> +++ grub-core/loader/i386/bsd.c
> @@ -42,12 +42,14 @@
> GRUB_MOD_LICENSE ("GPLv3+");
>
> #include <grub/video.h>
> +#include <grub/acpi.h>
> #ifdef GRUB_MACHINE_PCBIOS
> #include <grub/machine/biosnum.h>
> #endif
> #ifdef GRUB_MACHINE_EFI
> #include <grub/efi/efi.h>
> #define NETBSD_DEFAULT_VIDEO_MODE "800x600"
> +#define FREEBSD_DEFAULT_VIDEO_MODE "800x600"
> #else
> #define NETBSD_DEFAULT_VIDEO_MODE "text"
> #include <grub/i386/pc/vbe.h>
> @@ -584,6 +586,72 @@ freebsd_get_zfs (void)
> grub_free (uuid);
> }
>
> +#ifdef GRUB_MACHINE_EFI
> +
This shouldn't be limited to EFI. Just EFI would use GFX default while
BIOS would use text.
> +static grub_err_t
> +grub_freebsd_setup_video (void)
> +{
> + struct grub_video_mode_info mode_info;
> + void *framebuffer;
> + const char *modevar;
> + struct grub_freebsd_btinfo_framebuf efifb;
> + grub_err_t err;
> + grub_video_driver_id_t driv_id;
> +
> + modevar = grub_env_get ("gfxpayload");
> +
> + /* Now all graphical modes are acceptable.
> + May change in future if we have modes without framebuffer. */
> + if (modevar && *modevar != 0)
> + {
> + char *tmp;
> + tmp = grub_xasprintf ("%s;" FREEBSD_DEFAULT_VIDEO_MODE, modevar);
> + if (! tmp)
> + return grub_errno;
> + err = grub_video_set_mode (tmp, 0, 0);
> + grub_free (tmp);
> + }
> + else
> + err = grub_video_set_mode (FREEBSD_DEFAULT_VIDEO_MODE, 0, 0);
> +
> + if (err)
> + return err;
> +
> + driv_id = grub_video_get_driver_id ();
> + if (driv_id == GRUB_VIDEO_DRIVER_NONE)
> + return GRUB_ERR_NONE;
> +
> + err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
> +
> + if (err)
> + return err;
> +
> + efifb.fb_width = mode_info.width;
> + efifb.fb_height = mode_info.height;
> + efifb.fb_stride = mode_info.pitch / mode_info.bytes_per_pixel;
> +
Is bytes_per_pixel checked against 0 somewhere?
> + efifb.fb_addr = (grub_addr_t) framebuffer;
> + efifb.fb_size = ALIGN_UP (mode_info.pitch * efifb.fb_height, 65536);
> +
> + if ( mode_info.blue_field_pos == 16 ) {
> + efifb.fb_mask_red = 0x000000ff;
> + efifb.fb_mask_green = 0x0000ff00;
> + efifb.fb_mask_blue = 0x00ff0000;
> + }
> +
> + if ( mode_info.blue_field_pos == 0 ) {
> + efifb.fb_mask_red = 0x00ff0000;
> + efifb.fb_mask_green = 0x0000ff00;
> + efifb.fb_mask_blue = 0x000000ff;
> + }
> +
> + efifb.fb_mask_reserved = 0xff000000;
> +
Why these conditions? Why not use universal function?
efifb.fb_mask_red = ((1 << mode_info.red_size) - 1) <<
mode_info.red_field_pos
and so on
> + err = grub_bsd_add_meta ( FREEBSD_MODINFO_METADATA |
> FREEBSD_BTINFO_FRAMEBUF, &efifb, sizeof (efifb));
> + return err;
> +}
> +#endif
> +
> static grub_err_t
> grub_freebsd_boot (void)
> {
> @@ -602,6 +670,55 @@ grub_freebsd_boot (void)
>
> bi.boot_device = freebsd_biosdev;
>
> +#ifdef GRUB_MACHINE_EFI
> + /* When booting in EFI mode, we need to export some additional kernel ACPI
> hints */
> + struct grub_acpi_rsdp_v10 *v1;
> + struct grub_acpi_rsdp_v20 *v2;
> + v1 = grub_acpi_get_rsdpv1 ();
> + v2 = grub_acpi_get_rsdpv2 ();
> + if (v2 && v2->length > 40)
> + v2 = 0;
> +
> + int revision;
> + char acpiBuf[24];
> +
> + if (v1)
> + {
> + revision = v1->revision;
> + if ( revision == 0 )
> + revision = 1;
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "%d", revision);
> + grub_env_set("kFreeBSD.hint.acpi.0.revision", acpiBuf);
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "%s", v1->oemid);
> + grub_env_set("kFreeBSD.hint.acpi.0.oem", acpiBuf);
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "0x%016x", v1->rsdt_addr);
> + grub_env_set("kFreeBSD.hint.acpi.0.rsdt", acpiBuf);
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "0x%016llx", (unsigned long
> long)v1);
> + grub_env_set("kFreeBSD.hint.acpi.0.rsdp", acpiBuf);
> + }
> +
> + if (v2)
> + {
> + revision = v2->rsdpv1.revision;
> + if ( revision == 0 )
> + revision = 1;
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "%d", revision);
> + grub_env_set("kFreeBSD.hint.acpi.0.revision", acpiBuf);
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "0x%016llx", (unsigned long
> long)v2->xsdt_addr);
> + grub_env_set("kFreeBSD.hint.acpi.0.xsdt", acpiBuf);
> +
> + grub_snprintf (acpiBuf, sizeof (acpiBuf), "%d", v2->length);
> + grub_env_set("kFreeBSD.hint.acpi.0.xsdt_length", acpiBuf);
> + }
> +
This has to be a separate commit
> +
> +#endif
> +
> p_size = 0;
> FOR_SORTED_ENV (var)
> if ((grub_memcmp (var->name, "kFreeBSD.", sizeof("kFreeBSD.") - 1) == 0)
> && (var->name[sizeof("kFreeBSD.") - 1]))
> @@ -687,6 +804,10 @@ grub_freebsd_boot (void)
> *(grub_uint32_t *) p_tag = bootflags;
> break;
>
> + case FREEBSD_MODINFO_METADATA | FREEBSD_BTINFO_FRAMEBUF:
> + grub_memcpy (p_tag, tag->data, tag->len);
> + break;
> +
> case FREEBSD_MODINFO_METADATA | FREEBSD_MODINFOMD_ENVP:
> if (is_64bit)
> *(grub_uint64_t *) p_tag = bi.environment;
> @@ -716,7 +837,10 @@ grub_freebsd_boot (void)
>
> bi.kern_end = kern_end;
>
> +#ifndef GRUB_MACHINE_EFI
> + /* Don't set text mode on EFI boot */
> grub_video_set_mode ("text", 0, 0);
> +#endif
>
> if (is_64bit)
> {
> @@ -1560,6 +1684,16 @@ grub_cmd_freebsd (grub_extcmd_context_t ctxt, int
> argc, char *argv[])
> FREEBSD_MODINFOMD_KERNEND, &data, len);
> if (err)
> return err;
> +
> +#ifdef GRUB_MACHINE_EFI
> + err = grub_freebsd_setup_video ();
> + if (err)
> + {
> + grub_print_error ();
> + grub_puts_ (N_("Booting in EFI blind mode"));
> + grub_errno = GRUB_ERR_NONE;
> + }
> +#endif
> }
> grub_bsd_get_device (&freebsd_biosdev, &unit, &slice, &part);
> freebsd_zfsguid = 0;
> diff --git include/grub/i386/freebsd_bootinfo.h
> include/grub/i386/freebsd_bootinfo.h
> new file mode 100644
> index 0000000..17e5997
> --- /dev/null
> +++ include/grub/i386/freebsd_bootinfo.h
> @@ -0,0 +1,33 @@
> +/*
> + * GRUB -- GRand Unified Bootloader
> + * Copyright (C) 2008,2009 Free Software Foundation, Inc.
> + *
> + * GRUB is free software: you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation, either version 3 of the License, or
> + * (at your option) any later version.
> + *
> + * GRUB is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include <grub/types.h>
> +
> +#define FREEBSD_BTINFO_FRAMEBUF 0x1005
> +
> +struct grub_freebsd_btinfo_framebuf {
> + grub_uint64_t fb_addr;
> + grub_uint64_t fb_size;
> + grub_int32_t fb_height;
> + grub_int32_t fb_width;
> + grub_int32_t fb_stride;
> + grub_uint32_t fb_mask_red;
> + grub_uint32_t fb_mask_green;
> + grub_uint32_t fb_mask_blue;
> + grub_uint32_t fb_mask_reserved;
> +};
This file looks copied. Please provide correct attribution.
> -- 2.2.1
>
>
>
> _______________________________________________
> Grub-devel mailing list
> Grub-devel@gnu.org
> https://lists.gnu.org/mailman/listinfo/grub-devel
>
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
