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authorUwe Hermann <uwe@hermann-uwe.de>2008-07-08 16:18:38 +0000
committerUwe Hermann <uwe@hermann-uwe.de>2008-07-08 16:18:38 +0000
commit2fbbb29e54ee6a28461ea130e02eeee2984edb22 (patch)
tree8662718bddb5a012615cae5079256a43c1fcf233 /payloads/coreinfo
parenta4793182e892c71660e24dbe12198a653f7ec1e6 (diff)
downloadcoreboot-2fbbb29e54ee6a28461ea130e02eeee2984edb22.tar.xz
Add a coreinfo module which can hexdump arbitrary RAM regions and
allows you to scroll through the RAM contents. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3419 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/coreinfo')
-rw-r--r--payloads/coreinfo/Kconfig4
-rw-r--r--payloads/coreinfo/Makefile3
-rw-r--r--payloads/coreinfo/coreinfo.c4
-rw-r--r--payloads/coreinfo/ramdump_module.c112
4 files changed, 122 insertions, 1 deletions
diff --git a/payloads/coreinfo/Kconfig b/payloads/coreinfo/Kconfig
index c5ce217fb1..4281c66829 100644
--- a/payloads/coreinfo/Kconfig
+++ b/payloads/coreinfo/Kconfig
@@ -68,6 +68,10 @@ config MODULE_BOOTLOG
bool "Enable the coreboot bootlog module"
default y
+config MODULE_RAMDUMP
+ bool "Enable the RAM dump module"
+ default y
+
config MODULE_LAR
bool "Enable the coreboot LAR module"
default y
diff --git a/payloads/coreinfo/Makefile b/payloads/coreinfo/Makefile
index 8528ef805b..403eb56e16 100644
--- a/payloads/coreinfo/Makefile
+++ b/payloads/coreinfo/Makefile
@@ -51,7 +51,8 @@ AS = $(LIBPAYLOAD_DIR)/bin/lpas
INCLUDES = -Ibuild
CFLAGS := -Wall -Werror -Os $(INCLUDES)
OBJECTS = cpuinfo_module.o cpuid.S.o pci_module.o coreboot_module.o \
- nvram_module.o bootlog_module.o lar_module.o coreinfo.o
+ nvram_module.o bootlog_module.o ramdump_module.o lar_module.o \
+ coreinfo.o
OBJS = $(patsubst %,$(obj)/%,$(OBJECTS))
TARGET = $(obj)/coreinfo.elf
diff --git a/payloads/coreinfo/coreinfo.c b/payloads/coreinfo/coreinfo.c
index 99a3baa71e..3f49f53ef2 100644
--- a/payloads/coreinfo/coreinfo.c
+++ b/payloads/coreinfo/coreinfo.c
@@ -29,6 +29,7 @@ extern struct coreinfo_module pci_module;
extern struct coreinfo_module coreboot_module;
extern struct coreinfo_module nvram_module;
extern struct coreinfo_module bootlog_module;
+extern struct coreinfo_module ramdump_module;
extern struct coreinfo_module lar_module;
struct coreinfo_module *system_modules[] = {
@@ -41,6 +42,9 @@ struct coreinfo_module *system_modules[] = {
#ifdef CONFIG_MODULE_NVRAM
&nvram_module,
#endif
+#ifdef CONFIG_MODULE_RAMDUMP
+ &ramdump_module,
+#endif
};
struct coreinfo_module *coreboot_modules[] = {
diff --git a/payloads/coreinfo/ramdump_module.c b/payloads/coreinfo/ramdump_module.c
new file mode 100644
index 0000000000..16d7e96771
--- /dev/null
+++ b/payloads/coreinfo/ramdump_module.c
@@ -0,0 +1,112 @@
+/*
+ * This file is part of the coreinfo project.
+ *
+ * Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "coreinfo.h"
+
+#ifdef CONFIG_MODULE_RAMDUMP
+
+static s64 cursor = 0;
+static s64 cursor_max = (1 * 1024 * 1024 * 1024); /* Max. 1 GB RAM for now. */
+
+static int ramdump_module_init(void)
+{
+ return 0;
+}
+
+static void dump_ram(WINDOW *win, uint32_t addr, int row, int col)
+{
+ int i, x = 0, y = 0, count = 0;
+ volatile uint8_t *ptr = (void *)(addr);
+
+ mvwprintw(win, 0, col + 54, "RAM address: %10d", addr);
+
+ /* Dump 256 bytes of RAM. */
+ for (i = 1; i < 257; i++) {
+ if (x == 0) {
+ mvwprintw(win, row + y, col - 1, "%08x", addr + 16 * y);
+ mvwaddch(win, row + y, col + 59, (const chtype)"|");
+ mvwaddch(win, row + y, col + 76, (const chtype)"|");
+ }
+ mvwprintw(win, row + y, col + x + 9, "%02x", ptr[i - 1]);
+ mvwprintw(win, row + y, 62 + count++, "%c", ptr[i - 1]);
+ x += 3;
+ if (x == 24) /* One more space after column/byte 8. */
+ x++;
+ if (i % 16 == 0) {
+ y++; /* Start a newline after 16 bytes. */
+ x = count = 0;
+ }
+ }
+}
+
+static int ramdump_module_redraw(WINDOW *win)
+{
+ print_module_title(win, "RAM Dump");
+ dump_ram(win, cursor * 256, 2, 2);
+
+ return 0;
+}
+
+static int ramdump_module_handle(int key)
+{
+ switch (key) {
+ case KEY_DOWN:
+ if (cursor == cursor_max)
+ return 0;
+ cursor++;
+ break;
+ case KEY_UP:
+ if (cursor == 0)
+ return 0;
+ cursor--;
+ break;
+ case KEY_NPAGE:
+ if (cursor == cursor_max)
+ return 0;
+ cursor += 4096; /* Jump in 1MB steps. */
+ break;
+ case KEY_PPAGE:
+ if (cursor == 0)
+ return 0;
+ cursor -= 4096; /* Jump in 1MB steps. */
+ break;
+ }
+
+ if (cursor > cursor_max)
+ cursor = cursor_max;
+
+ if (cursor < 0)
+ cursor = 0;
+
+ return 1;
+}
+
+struct coreinfo_module ramdump_module = {
+ .name = "RAM Dump",
+ .init = ramdump_module_init,
+ .redraw = ramdump_module_redraw,
+ .handle = ramdump_module_handle,
+};
+
+#else
+
+struct coreinfo_module ramdump_module = {
+};
+
+#endif