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From d060cd9ae53e59c0bf1e58f05c6ead1989b7d291 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Wed, 20 Mar 2013 17:13:31 +0100
Subject: [PATCH 217/364] 	New commands cbmemc, lscoreboot,
 coreboot_boottime to inspect 	coreboot tables content. Support for cbmemc.

---
 ChangeLog                                        |   5 +
 grub-core/Makefile.am                            |   1 +
 grub-core/Makefile.core.def                      |  18 ++++
 grub-core/commands/i386/coreboot/cb_timestamps.c | 118 +++++++++++++++++++++
 grub-core/commands/i386/coreboot/cbls.c          | 128 +++++++++++++++++++++++
 grub-core/kern/i386/coreboot/mmap.c              |   2 +-
 grub-core/normal/term.c                          |  19 +++-
 grub-core/term/i386/coreboot/cbmemc.c            | 127 ++++++++++++++++++++++
 include/grub/i386/coreboot/lbio.h                |  30 ++++++
 include/grub/normal.h                            |   3 +
 10 files changed, 446 insertions(+), 5 deletions(-)
 create mode 100644 grub-core/commands/i386/coreboot/cb_timestamps.c
 create mode 100644 grub-core/commands/i386/coreboot/cbls.c
 create mode 100644 grub-core/term/i386/coreboot/cbmemc.c

diff --git a/ChangeLog b/ChangeLog
index 0fcaa65..5bb93ed 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2013-03-20  Vladimir Serbinenko  <phcoder@gmail.com>
 
+	New commands cbmemc, lscoreboot, coreboot_boottime to inspect
+	coreboot tables content. Support for cbmemc.
+
+2013-03-20  Vladimir Serbinenko  <phcoder@gmail.com>
+
 	Fix a conflict between ports structures with 2 controllers of
 	same kind.
 
diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
index 221466b..6f156e7 100644
--- a/grub-core/Makefile.am
+++ b/grub-core/Makefile.am
@@ -110,6 +110,7 @@ endif
 
 if COND_i386_coreboot
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/tsc.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/coreboot/lbio.h
 KERNEL_HEADER_FILES += $(top_builddir)/include/grub/i386/pc/int.h
 endif
 
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 5c15f32..d851bc3 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -519,6 +519,24 @@ module = {
 };
 
 module = {
+  name = cbtime;
+  common = commands/i386/coreboot/cb_timestamps.c;
+  enable = i386_coreboot;
+};
+
+module = {
+  name = cbls;
+  common = commands/i386/coreboot/cbls.c;
+  enable = i386_coreboot;
+};
+
+module = {
+  name = cbmemc;
+  common = term/i386/coreboot/cbmemc.c;
+  enable = i386_coreboot;
+};
+
+module = {
   name = regexp;
   common = commands/regexp.c;
   common = commands/wildcard.c;
diff --git a/grub-core/commands/i386/coreboot/cb_timestamps.c b/grub-core/commands/i386/coreboot/cb_timestamps.c
new file mode 100644
index 0000000..5299ad4
--- /dev/null
+++ b/grub-core/commands/i386/coreboot/cb_timestamps.c
@@ -0,0 +1,118 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  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/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/i386/coreboot/lbio.h>
+#include <grub/i386/tsc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static grub_uint32_t
+tsc2ms (grub_uint64_t tsc)
+{
+  grub_uint64_t ah = tsc >> 32;
+  grub_uint64_t al = tsc & 0xffffffff;
+
+  return ((al * grub_tsc_rate) >> 32) + ah * grub_tsc_rate;
+}
+
+static const char *descs[] = {
+  [1] = "romstage",
+  [2] = "before RAM init",
+  [3] = "after RAM init",
+  [4] = "end of romstage",
+  [8] = "start of RAM copy",
+  [9] = "end of RAM copy",
+  [10] = "start of ramstage",
+  [30] = "device enumerate",
+  [40] = "device configure",
+  [50] = "device enable",
+  [60] = "device initialize",
+  [70] = "device done",
+  [75] = "CBMEM POST",
+  [80] = "writing tables",
+  [90] = "loading payload",
+  [98] = "wake jump",
+  [99] = "selfboot jump",
+};
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
+			 void *data)
+{
+  int *available = data;
+  grub_uint64_t last_tsc = 0;
+  struct grub_linuxbios_timestamp_table *ts_table;
+  unsigned i;
+
+  if (table_item->tag != GRUB_LINUXBIOS_MEMBER_TIMESTAMPS)
+    return 0;
+
+  *available = 1;
+  ts_table = (struct grub_linuxbios_timestamp_table *) (grub_addr_t)
+    *(grub_uint64_t *) (table_item + 1);
+
+  for (i = 0; i < ts_table->used; i++)
+    {
+      grub_uint32_t tmabs = tsc2ms (ts_table->entries[i].tsc);
+      grub_uint32_t tmrel = tsc2ms (ts_table->entries[i].tsc - last_tsc);
+      last_tsc = ts_table->entries[i].tsc;
+
+      grub_printf ("%3d.%03ds %2d.%03ds %02d %s\n", 
+		   tmabs / 1000, tmabs % 1000, tmrel / 1000, tmrel % 1000,
+		   ts_table->entries[i].id,
+		   (ts_table->entries[i].id < ARRAY_SIZE (descs)
+		    && descs[ts_table->entries[i].id])
+		   ? descs[ts_table->entries[i].id] : "");
+    }
+  return 1;
+}
+
+
+static grub_err_t
+grub_cmd_coreboot_boottime (struct grub_command *cmd __attribute__ ((unused)),
+			    int argc __attribute__ ((unused)),
+			    char *argv[] __attribute__ ((unused)))
+{
+  int available = 0;
+
+  grub_linuxbios_table_iterate (iterate_linuxbios_table, &available);
+  if (!available)
+    {
+      grub_puts_ (N_("No boot time statistics is available\n"));
+      return 0;
+    }
+ return 0;
+}
+
+static grub_command_t cmd_boottime;
+
+GRUB_MOD_INIT(cbtime)
+{
+  cmd_boottime =
+    grub_register_command ("coreboot_boottime", grub_cmd_coreboot_boottime,
+			   0, N_("Get coreboot boot time statistics."));
+}
+
+GRUB_MOD_FINI(cbtime)
+{
+  grub_unregister_command (cmd_boottime);
+}
diff --git a/grub-core/commands/i386/coreboot/cbls.c b/grub-core/commands/i386/coreboot/cbls.c
new file mode 100644
index 0000000..dc46d55
--- /dev/null
+++ b/grub-core/commands/i386/coreboot/cbls.c
@@ -0,0 +1,128 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  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/dl.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/i18n.h>
+#include <grub/i386/coreboot/lbio.h>
+#include <grub/i386/tsc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static const char *console_descs[] = {
+  "8250 UART",
+  "VGA",
+  "BTEXT",
+  "CBMEM console",
+  "SROM",
+  "EHCI debug",
+  "memory-mapped 8250 UART"
+};
+
+static const char *descs[] = {
+  [GRUB_LINUXBIOS_MEMBER_MEMORY] = "memory map (`lsmmap' to list)",
+  [GRUB_LINUXBIOS_MEMBER_MAINBOARD] = "mainboard",
+  [4] = "version",
+  [5] = "extra version",
+  [6] = "build",
+  [7] = "compile time",
+  [8] = "compile by",
+  [9] = "compile host",
+  [0xa] = "compile domain",
+  [0xb] = "compiler",
+  [0xc] = "linker",
+  [0xd] = "assembler",
+  [0xf] = "serial",
+  [GRUB_LINUXBIOS_MEMBER_CONSOLE] = "console",
+  [0x12] = "framebuffer",
+  [0x13] = "GPIO",
+  [0x15] = "VDAT",
+  [GRUB_LINUXBIOS_MEMBER_TIMESTAMPS] = "timestamps (`coreboot_boottime' to list)",
+  [GRUB_LINUXBIOS_MEMBER_CBMEMC] = "CBMEM console (`cbmem' to list)",
+  [0x18] = "MRC cache",
+  [0x19] = "VBNV",
+  [0xc8] = "CMOS option table",
+  [0xc9] = "CMOS option",
+  [0xca] = "CMOS option enum",
+  [0xcb] = "CMOS option defaults",
+  [0xcc] = "CMOS checksum",
+};
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
+			 void *data __attribute__ ((unused)))
+{
+  if (table_item->tag < ARRAY_SIZE (descs) && descs[table_item->tag])
+    grub_printf ("tag=%02x size=%02x %s",
+		 table_item->tag, table_item->size, descs[table_item->tag]);
+  else
+    grub_printf ("tag=%02x size=%02x",
+		 table_item->tag, table_item->size);
+
+  switch (table_item->tag)
+    {
+    case GRUB_LINUXBIOS_MEMBER_MAINBOARD:
+      {
+	struct grub_linuxbios_mainboard *mb;
+	mb = (struct grub_linuxbios_mainboard *) (table_item + 1);
+	grub_printf (": vendor=`%s' part_number=`%s'",
+		     mb->strings + mb->vendor,
+		     mb->strings + mb->part_number);
+	break;
+      }
+    case 0x04 ... 0x0d:
+      grub_printf (": `%s'", (char *) (table_item + 1));
+      break;
+    case GRUB_LINUXBIOS_MEMBER_CONSOLE:
+      {
+	grub_uint16_t *val = (grub_uint16_t *) (table_item + 1);
+	grub_printf (": id=%d", *val);
+	if (*val < ARRAY_SIZE (console_descs)
+	    && console_descs[*val])
+	  grub_printf (" %s", console_descs[*val]);
+      }
+    }
+  grub_printf ("\n");
+
+  return 0;
+}
+
+
+static grub_err_t
+grub_cmd_lscoreboot (struct grub_command *cmd __attribute__ ((unused)),
+			    int argc __attribute__ ((unused)),
+			    char *argv[] __attribute__ ((unused)))
+{
+  grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT(cbls)
+{
+  cmd =
+    grub_register_command ("lscoreboot", grub_cmd_lscoreboot,
+			   0, N_("List coreboot tables."));
+}
+
+GRUB_MOD_FINI(cbls)
+{
+  grub_unregister_command (cmd);
+}
diff --git a/grub-core/kern/i386/coreboot/mmap.c b/grub-core/kern/i386/coreboot/mmap.c
index 47efb72..6a14d29 100644
--- a/grub-core/kern/i386/coreboot/mmap.c
+++ b/grub-core/kern/i386/coreboot/mmap.c
@@ -32,7 +32,7 @@ check_signature (grub_linuxbios_table_header_t tbl_header)
   return 0;
 }
 
-static grub_err_t
+grub_err_t
 grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t,
 					   void *),
 			      void *hook_data)
diff --git a/grub-core/normal/term.c b/grub-core/normal/term.c
index f89e5d2..32deba3 100644
--- a/grub-core/normal/term.c
+++ b/grub-core/normal/term.c
@@ -979,20 +979,21 @@ grub_ucs4_count_lines (const grub_uint32_t * str,
 }
 
 void
-grub_xputs_normal (const char *str)
+grub_xnputs (const char *str, grub_size_t msg_len)
 {
   grub_uint32_t *unicode_str = NULL, *unicode_last_position;
   int backlog = 0;
   grub_term_output_t term;
 
   grub_error_push ();
-  grub_utf8_to_ucs4_alloc (str, &unicode_str,
-  			   &unicode_last_position);
+
+  unicode_str = grub_malloc (msg_len * sizeof (grub_uint32_t));
+ 
   grub_error_pop ();
 
   if (!unicode_str)
     {
-      for (; *str; str++)
+      for (; msg_len--; str++, msg_len++)
 	{
 	  struct grub_unicode_glyph c =
 	    {
@@ -1021,6 +1022,10 @@ grub_xputs_normal (const char *str)
       return;
     }
 
+  msg_len = grub_utf8_to_ucs4 (unicode_str, msg_len,
+			       (grub_uint8_t *) str, -1, 0);
+  unicode_last_position = unicode_str + msg_len;
+
   FOR_ACTIVE_TERM_OUTPUTS(term)
   {
     int cur;
@@ -1045,6 +1050,12 @@ grub_xputs_normal (const char *str)
 }
 
 void
+grub_xputs_normal (const char *str)
+{
+  grub_xnputs (str, grub_strlen (str));
+}
+
+void
 grub_cls (void)
 {
   struct grub_term_output *term;
diff --git a/grub-core/term/i386/coreboot/cbmemc.c b/grub-core/term/i386/coreboot/cbmemc.c
new file mode 100644
index 0000000..c58d671
--- /dev/null
+++ b/grub-core/term/i386/coreboot/cbmemc.c
@@ -0,0 +1,127 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013  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/term.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/terminfo.h>
+#include <grub/dl.h>
+#include <grub/machine/lbio.h>
+#include <grub/command.h>
+#include <grub/normal.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_linuxbios_cbmemc
+{
+  grub_uint32_t size;
+  grub_uint32_t pointer;
+  char data[0];
+};
+
+static struct grub_linuxbios_cbmemc *cbmemc;
+
+static void
+put (struct grub_term_output *term __attribute__ ((unused)), const int c)
+{
+  if (!cbmemc)
+    return;
+  if (cbmemc->pointer < cbmemc->size)
+    cbmemc->data[cbmemc->pointer] = c;
+  cbmemc->pointer++;
+}
+
+struct grub_terminfo_output_state grub_cbmemc_terminfo_output =
+  {
+    .put = put,
+    .width = 80,
+    .height = 24
+  };
+
+static struct grub_term_output grub_cbmemc_term_output =
+  {
+    .name = "cbmemc",
+    .init = grub_terminfo_output_init,
+    .fini = 0,
+    .putchar = grub_terminfo_putchar,
+    .getxy = grub_terminfo_getxy,
+    .getwh = grub_terminfo_getwh,
+    .gotoxy = grub_terminfo_gotoxy,
+    .cls = grub_terminfo_cls,
+    .setcolorstate = grub_terminfo_setcolorstate,
+    .setcursor = grub_terminfo_setcursor,
+    .flags = GRUB_TERM_CODE_TYPE_ASCII,
+    .data = &grub_cbmemc_terminfo_output,
+  };
+
+static int
+iterate_linuxbios_table (grub_linuxbios_table_item_t table_item,
+			 void *data __attribute__ ((unused)))
+{
+  if (table_item->tag != GRUB_LINUXBIOS_MEMBER_CBMEMC)
+    return 0;
+  cbmemc = (struct grub_linuxbios_cbmemc *) (grub_addr_t)
+    *(grub_uint64_t *) (table_item + 1);
+  return 1;
+}
+
+static grub_err_t
+grub_cmd_cbmemc (struct grub_command *cmd __attribute__ ((unused)),
+		 int argc __attribute__ ((unused)),
+		 char *argv[] __attribute__ ((unused)))
+{
+  grub_size_t len;
+  char *str;
+  struct grub_linuxbios_cbmemc *cbmemc_saved;
+
+  if (!cbmemc)
+    return grub_error (GRUB_ERR_IO, "no CBMEM console found");
+
+  len = cbmemc->pointer;
+  if (len > cbmemc->size)
+    len = cbmemc->size;
+  str = cbmemc->data;
+  cbmemc_saved = cbmemc;
+  cbmemc = 0;
+  grub_xnputs (str, len);
+  cbmemc = cbmemc_saved;
+  return 0;
+}
+
+static grub_command_t cmd;
+
+GRUB_MOD_INIT (cbmemc)
+{
+  grub_linuxbios_table_iterate (iterate_linuxbios_table, 0);
+
+  if (cbmemc)
+    grub_term_register_output ("cbmemc", &grub_cbmemc_term_output);
+
+  cmd =
+    grub_register_command ("cbmemc", grub_cmd_cbmemc,
+			   0, N_("Show CBMEM console content."));
+}
+
+
+GRUB_MOD_FINI (cbmemc)
+{
+  grub_term_unregister_output (&grub_cbmemc_term_output);
+  grub_unregister_command (cmd);
+}
diff --git a/include/grub/i386/coreboot/lbio.h b/include/grub/i386/coreboot/lbio.h
index bac5492..b4150f4 100644
--- a/include/grub/i386/coreboot/lbio.h
+++ b/include/grub/i386/coreboot/lbio.h
@@ -31,11 +31,36 @@ struct grub_linuxbios_table_header
 };
 typedef struct grub_linuxbios_table_header *grub_linuxbios_table_header_t;
 
+struct grub_linuxbios_timestamp_entry
+{
+  grub_uint32_t id;
+  grub_uint64_t tsc;
+} __attribute__((packed));
+
+struct grub_linuxbios_timestamp_table
+{
+  grub_uint64_t base_tsc;
+  grub_uint32_t capacity;
+  grub_uint32_t used;
+  struct grub_linuxbios_timestamp_entry entries[0];
+} __attribute__((packed));
+
+struct grub_linuxbios_mainboard
+{
+  grub_uint8_t vendor;
+  grub_uint8_t part_number;
+  char strings[0];
+};
+
 struct grub_linuxbios_table_item
 {
 #define GRUB_LINUXBIOS_MEMBER_UNUSED		0x00
 #define GRUB_LINUXBIOS_MEMBER_MEMORY		0x01
+#define GRUB_LINUXBIOS_MEMBER_MAINBOARD		0x03
+#define GRUB_LINUXBIOS_MEMBER_CONSOLE           0x10
 #define GRUB_LINUXBIOS_MEMBER_LINK              0x11
+#define GRUB_LINUXBIOS_MEMBER_TIMESTAMPS        0x16
+#define GRUB_LINUXBIOS_MEMBER_CBMEMC            0x17
   grub_uint32_t tag;
   grub_uint32_t size;
 };
@@ -50,4 +75,9 @@ struct grub_linuxbios_mem_region
 };
 typedef struct grub_linuxbios_mem_region *mem_region_t;
 
+grub_err_t
+EXPORT_FUNC(grub_linuxbios_table_iterate) (int (*hook) (grub_linuxbios_table_item_t,
+					   void *),
+					   void *hook_data);
+
 #endif
diff --git a/include/grub/normal.h b/include/grub/normal.h
index 416faa4..4fcc3da 100644
--- a/include/grub/normal.h
+++ b/include/grub/normal.h
@@ -141,6 +141,9 @@ void grub_normal_free_menu (grub_menu_t menu);
 void grub_normal_auth_init (void);
 void grub_normal_auth_fini (void);
 
+void
+grub_xnputs (const char *str, grub_size_t msg_len);
+
 grub_command_t
 grub_dyncmd_get_cmd (grub_command_t cmd);
 
-- 
1.8.1.4