289 lines
8.1 KiB
Diff
289 lines
8.1 KiB
Diff
From: Evan Broder <evan@ebroder.net>
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Date: Mon, 13 Jan 2014 12:13:29 +0000
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Subject: Add configure option to enable gfxpayload=keep dynamically
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Set GRUB_GFXPAYLOAD_LINUX=keep unless it's known to be unsupported on
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the current hardware. See
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https://blueprints.launchpad.net/ubuntu/+spec/packageselection-foundations-n-grub2-boot-framebuffer.
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Author: Colin Watson <cjwatson@ubuntu.com>
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Forwarded: no
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Last-Update: 2019-05-25
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Patch-Name: gfxpayload-dynamic.patch
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---
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configure.ac | 11 +++
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grub-core/Makefile.core.def | 8 ++
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grub-core/commands/i386/pc/hwmatch.c | 146 +++++++++++++++++++++++++++++++++++
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include/grub/file.h | 1 +
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util/grub.d/10_linux.in | 37 ++++++++-
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5 files changed, 200 insertions(+), 3 deletions(-)
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create mode 100644 grub-core/commands/i386/pc/hwmatch.c
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diff --git a/configure.ac b/configure.ac
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index 6084381..6812742 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -2090,6 +2090,17 @@ else
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fi
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AC_SUBST([QUICK_BOOT])
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+AC_ARG_ENABLE([gfxpayload-dynamic],
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+ [AS_HELP_STRING([--enable-gfxpayload-dynamic],
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+ [use GRUB_GFXPAYLOAD_LINUX=keep unless explicitly unsupported on current hardware (default=no)])],
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+ [], [enable_gfxpayload_dynamic=no])
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+if test x"$enable_gfxpayload_dynamic" = xyes ; then
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+ GFXPAYLOAD_DYNAMIC=1
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+else
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+ GFXPAYLOAD_DYNAMIC=0
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+fi
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+AC_SUBST([GFXPAYLOAD_DYNAMIC])
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+
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LIBS=""
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AC_SUBST([FONT_SOURCE])
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diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
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index 1571421..15be5db 100644
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--- a/grub-core/Makefile.core.def
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+++ b/grub-core/Makefile.core.def
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@@ -993,6 +993,14 @@ module = {
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common = lib/hexdump.c;
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};
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+module = {
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+ name = hwmatch;
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+ i386_pc = commands/i386/pc/hwmatch.c;
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+ enable = i386_pc;
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+ cflags = '$(CFLAGS_POSIX) $(CFLAGS_GNULIB)';
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+ cppflags = '$(CPPFLAGS_POSIX) $(CPPFLAGS_GNULIB)';
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+};
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+
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module = {
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name = keystatus;
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common = commands/keystatus.c;
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diff --git a/grub-core/commands/i386/pc/hwmatch.c b/grub-core/commands/i386/pc/hwmatch.c
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new file mode 100644
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index 0000000..6de07ce
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--- /dev/null
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+++ b/grub-core/commands/i386/pc/hwmatch.c
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@@ -0,0 +1,146 @@
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+/* hwmatch.c - Match hardware against a whitelist/blacklist. */
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+/*
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+ * GRUB -- GRand Unified Bootloader
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+ * Copyright (C) 2011 Free Software Foundation, Inc.
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+ *
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+ * GRUB is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * GRUB is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <grub/dl.h>
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+#include <grub/misc.h>
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+#include <grub/command.h>
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+#include <grub/pci.h>
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+#include <grub/normal.h>
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+#include <grub/file.h>
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+#include <grub/env.h>
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+#include <grub/i18n.h>
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+#include <regex.h>
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+
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+GRUB_MOD_LICENSE ("GPLv3+");
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+
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+/* Context for grub_cmd_hwmatch. */
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+struct hwmatch_ctx
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+{
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+ grub_file_t matches_file;
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+ int class_match;
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+ int match;
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+};
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+
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+/* Helper for grub_cmd_hwmatch. */
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+static int
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+hwmatch_iter (grub_pci_device_t dev, grub_pci_id_t pciid, void *data)
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+{
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+ struct hwmatch_ctx *ctx = data;
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+ grub_pci_address_t addr;
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+ grub_uint32_t class, baseclass, vendor, device;
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+ grub_pci_id_t subpciid;
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+ grub_uint32_t subvendor, subdevice, subclass;
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+ char *id, *line;
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+
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
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+ class = grub_pci_read (addr);
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+ baseclass = class >> 24;
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+
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+ if (ctx->class_match != baseclass)
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+ return 0;
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+
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+ vendor = pciid & 0xffff;
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+ device = pciid >> 16;
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+
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+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_SUBVENDOR);
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+ subpciid = grub_pci_read (addr);
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+
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+ subclass = (class >> 16) & 0xff;
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+ subvendor = subpciid & 0xffff;
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+ subdevice = subpciid >> 16;
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+
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+ id = grub_xasprintf ("v%04xd%04xsv%04xsd%04xbc%02xsc%02x",
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+ vendor, device, subvendor, subdevice,
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+ baseclass, subclass);
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+
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+ grub_file_seek (ctx->matches_file, 0);
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+ while ((line = grub_file_getline (ctx->matches_file)) != NULL)
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+ {
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+ char *anchored_line;
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+ regex_t regex;
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+ int ret;
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+
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+ if (! *line || *line == '#')
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+ {
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+ grub_free (line);
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+ continue;
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+ }
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+
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+ anchored_line = grub_xasprintf ("^%s$", line);
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+ ret = regcomp (®ex, anchored_line, REG_EXTENDED | REG_NOSUB);
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+ grub_free (anchored_line);
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+ if (ret)
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+ {
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+ grub_free (line);
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+ continue;
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+ }
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+
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+ ret = regexec (®ex, id, 0, NULL, 0);
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+ regfree (®ex);
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+ grub_free (line);
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+ if (! ret)
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+ {
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+ ctx->match = 1;
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+ return 1;
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+ }
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+ }
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+
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+ return 0;
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+}
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+
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+static grub_err_t
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+grub_cmd_hwmatch (grub_command_t cmd __attribute__ ((unused)),
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+ int argc, char **args)
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+{
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+ struct hwmatch_ctx ctx = { .match = 0 };
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+ char *match_str;
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+
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+ if (argc < 2)
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+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "list file and class required");
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+
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+ ctx.matches_file = grub_file_open (args[0], GRUB_FILE_TYPE_HWMATCH);
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+ if (! ctx.matches_file)
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+ return grub_errno;
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+
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+ ctx.class_match = grub_strtol (args[1], 0, 10);
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+
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+ grub_pci_iterate (hwmatch_iter, &ctx);
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+
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+ match_str = grub_xasprintf ("%d", ctx.match);
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+ grub_env_set ("match", match_str);
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+ grub_free (match_str);
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+
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+ grub_file_close (ctx.matches_file);
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+
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+ return GRUB_ERR_NONE;
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+}
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+
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+static grub_command_t cmd;
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+
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+GRUB_MOD_INIT(hwmatch)
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+{
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+ cmd = grub_register_command ("hwmatch", grub_cmd_hwmatch,
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+ N_("MATCHES-FILE CLASS"),
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+ N_("Match PCI devices."));
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+}
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+
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+GRUB_MOD_FINI(hwmatch)
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+{
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+ grub_unregister_command (cmd);
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+}
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diff --git a/include/grub/file.h b/include/grub/file.h
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index a5bf3a7..59d53f6 100644
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--- a/include/grub/file.h
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+++ b/include/grub/file.h
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@@ -126,6 +126,7 @@ enum grub_file_type
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GRUB_FILE_TYPE_FS_SEARCH,
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GRUB_FILE_TYPE_AUDIO,
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GRUB_FILE_TYPE_VBE_DUMP,
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+ GRUB_FILE_TYPE_HWMATCH,
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GRUB_FILE_TYPE_LOADENV,
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GRUB_FILE_TYPE_SAVEENV,
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diff --git a/util/grub.d/10_linux.in b/util/grub.d/10_linux.in
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index 1ee9fd7..e68745a 100644
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--- a/util/grub.d/10_linux.in
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+++ b/util/grub.d/10_linux.in
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@@ -23,6 +23,7 @@ datarootdir="@datarootdir@"
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ubuntu_recovery="@UBUNTU_RECOVERY@"
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quiet_boot="@QUIET_BOOT@"
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quick_boot="@QUICK_BOOT@"
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+gfxpayload_dynamic="@GFXPAYLOAD_DYNAMIC@"
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. "$pkgdatadir/grub-mkconfig_lib"
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@@ -146,9 +147,10 @@ linux_entry ()
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if [ "x$GRUB_GFXPAYLOAD_LINUX" != xtext ]; then
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echo " load_video" | sed "s/^/$submenu_indentation/"
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fi
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- if [ "$ubuntu_recovery" = 0 ] || [ x$type != xrecovery ]; then
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- echo " set gfxpayload=$GRUB_GFXPAYLOAD_LINUX" | sed "s/^/$submenu_indentation/"
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- fi
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+ fi
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+ if ([ "$ubuntu_recovery" = 0 ] || [ x$type != xrecovery ]) && \
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+ ([ "x$GRUB_GFXPAYLOAD_LINUX" != x ] || [ "$gfxpayload_dynamic" = 1 ]); then
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+ echo " set gfxpayload=\$linux_gfx_mode" | sed "s/^/$submenu_indentation/"
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fi
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echo " insmod gzio" | sed "s/^/$submenu_indentation/"
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@@ -221,6 +223,35 @@ prepare_root_cache=
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boot_device_id=
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title_correction_code=
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+# Use ELILO's generic "efifb" when it's known to be available.
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+# FIXME: We need an interface to select vesafb in case efifb can't be used.
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+if [ "x$GRUB_GFXPAYLOAD_LINUX" != x ] || [ "$gfxpayload_dynamic" = 0 ]; then
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+ echo "set linux_gfx_mode=$GRUB_GFXPAYLOAD_LINUX"
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+else
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+ cat << EOF
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+if [ "\${recordfail}" != 1 ]; then
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+ if [ -e \${prefix}/gfxblacklist.txt ]; then
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+ if hwmatch \${prefix}/gfxblacklist.txt 3; then
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+ if [ \${match} = 0 ]; then
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+ set linux_gfx_mode=keep
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+ else
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+ set linux_gfx_mode=text
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+ fi
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+ else
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+ set linux_gfx_mode=text
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+ fi
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+ else
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+ set linux_gfx_mode=keep
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+ fi
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+else
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+ set linux_gfx_mode=text
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+fi
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+EOF
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+fi
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+cat << EOF
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+export linux_gfx_mode
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+EOF
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+
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# Extra indentation to add to menu entries in a submenu. We're not in a submenu
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# yet, so it's empty. In a submenu it will be equal to '\t' (one tab).
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submenu_indentation=""
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