vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

2007-11-05 Robert Millan <rmh@aybabtu.com>

Browse source 
* kern/disk.c (grub_disk_firmware_fini)
	(grub_disk_firmware_is_tainted): New variables.

	* include/grub/disk.h (grub_disk_firmware_fini)
	(grub_disk_firmware_is_tainted): Likewise.

	* disk/i386/pc/biosdisk.c (GRUB_MOD_FINI(biosdisk)): Moved from here ...
	(grub_disk_biosdisk_fini): ... to here.
	(GRUB_MOD_FINI(biosdisk)): Implement using grub_disk_biosdisk_fini().
	(GRUB_MOD_INIT(biosdisk)): Abort when `grub_disk_firmware_is_tainted'
	is set.  Register grub_disk_biosdisk_fini() in
	`grub_disk_firmware_fini'.

	* disk/ata.c: Remove `<grub/machine/biosdisk.h>'.
	(GRUB_MOD_INIT(ata)): Remove grub_biosdisk_fini() call.
	Use `grub_disk_firmware_is_tainted' and `grub_disk_firmware_fini'
	to finish existing firmware disk interface.

	* conf/i386-linuxbios.rmk (pkgdata_MODULES): Add `ata.mod'.
	(ata_mod_SOURCES): New variable.
	(ata_mod_CFLAGS): Likewise.
	(ata_mod_LDFLAGS): Likewise.
This commit is contained in:
robertmh 2007-11-05 16:15:27 +00:00
parent 0149ab7c63
commit 5ab33bba2f
7 changed files with 111 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
ChangeLog
View file

@ -1,3 +1,28 @@
2007-11-05 Robert Millan <rmh@aybabtu.com>
* kern/disk.c (grub_disk_firmware_fini)
(grub_disk_firmware_is_tainted): New variables.
* include/grub/disk.h (grub_disk_firmware_fini)
(grub_disk_firmware_is_tainted): Likewise.
* disk/i386/pc/biosdisk.c (GRUB_MOD_FINI(biosdisk)): Moved from here ...
(grub_disk_biosdisk_fini): ... to here.
(GRUB_MOD_FINI(biosdisk)): Implement using grub_disk_biosdisk_fini().
(GRUB_MOD_INIT(biosdisk)): Abort when `grub_disk_firmware_is_tainted'
is set. Register grub_disk_biosdisk_fini() in
`grub_disk_firmware_fini'.
* disk/ata.c: Remove `<grub/machine/biosdisk.h>'.
(GRUB_MOD_INIT(ata)): Remove grub_biosdisk_fini() call.
Use `grub_disk_firmware_is_tainted' and `grub_disk_firmware_fini'
to finish existing firmware disk interface.
* conf/i386-linuxbios.rmk (pkgdata_MODULES): Add `ata.mod'.
(ata_mod_SOURCES): New variable.
(ata_mod_CFLAGS): Likewise.
(ata_mod_LDFLAGS): Likewise.
2007-11-05 Robert Millan <rmh@aybabtu.com>
* disk/ata.c: Remove `<grub/machine/time.h>'. Include `<grub/time.h>'.

54
conf/i386-linuxbios.mk
View file

@ -657,7 +657,7 @@ grub_emu_LDFLAGS = $(LIBCURSES)
# Modules.
pkgdata_MODULES = _linux.mod linux.mod normal.mod \
_multiboot.mod multiboot.mod play.mod \
cpuid.mod serial.mod
cpuid.mod serial.mod ata.mod
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
@ -1324,4 +1324,56 @@ fs-cpuid_mod-commands_i386_cpuid.lst: commands/i386/cpuid.c genfslist.sh
cpuid_mod_CFLAGS = $(COMMON_CFLAGS)
cpuid_mod_LDFLAGS = $(COMMON_LDFLAGS)
# For ata.mod.
ata_mod_SOURCES = disk/ata.c
CLEANFILES += ata.mod mod-ata.o mod-ata.c pre-ata.o ata_mod-disk_ata.o und-ata.lst
ifneq ($(ata_mod_EXPORTS),no)
CLEANFILES += def-ata.lst
DEFSYMFILES += def-ata.lst
endif
MOSTLYCLEANFILES += ata_mod-disk_ata.d
UNDSYMFILES += und-ata.lst
ata.mod: pre-ata.o mod-ata.o
-rm -f $@
$(TARGET_CC) $(ata_mod_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o $@ $^
$(STRIP) --strip-unneeded -K grub_mod_init -K grub_mod_fini -R .note -R .comment $@
pre-ata.o: $(ata_mod_DEPENDENCIES) ata_mod-disk_ata.o
-rm -f $@
$(TARGET_CC) $(ata_mod_LDFLAGS) $(TARGET_LDFLAGS) -Wl,-r,-d -o $@ ata_mod-disk_ata.o
mod-ata.o: mod-ata.c
$(TARGET_CC) $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(ata_mod_CFLAGS) -c -o $@ $<
mod-ata.c: moddep.lst genmodsrc.sh
sh $(srcdir)/genmodsrc.sh 'ata' $< > $@ || (rm -f $@; exit 1)
ifneq ($(ata_mod_EXPORTS),no)
def-ata.lst: pre-ata.o
$(NM) -g --defined-only -P -p $< | sed 's/^\([^ ]*\).*/\1 ata/' > $@
endif
und-ata.lst: pre-ata.o
echo 'ata' > $@
$(NM) -u -P -p $< | cut -f1 -d' ' >> $@
ata_mod-disk_ata.o: disk/ata.c
$(TARGET_CC) -Idisk -I$(srcdir)/disk $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(ata_mod_CFLAGS) -MD -c -o $@ $<
-include ata_mod-disk_ata.d
CLEANFILES += cmd-ata_mod-disk_ata.lst fs-ata_mod-disk_ata.lst
COMMANDFILES += cmd-ata_mod-disk_ata.lst
FSFILES += fs-ata_mod-disk_ata.lst
cmd-ata_mod-disk_ata.lst: disk/ata.c gencmdlist.sh
set -e; $(TARGET_CC) -Idisk -I$(srcdir)/disk $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(ata_mod_CFLAGS) -E $< | sh $(srcdir)/gencmdlist.sh ata > $@ || (rm -f $@; exit 1)
fs-ata_mod-disk_ata.lst: disk/ata.c genfslist.sh
set -e; $(TARGET_CC) -Idisk -I$(srcdir)/disk $(TARGET_CPPFLAGS) $(TARGET_CFLAGS) $(ata_mod_CFLAGS) -E $< | sh $(srcdir)/genfslist.sh ata > $@ || (rm -f $@; exit 1)
ata_mod_CFLAGS = $(COMMON_CFLAGS)
ata_mod_LDFLAGS = $(COMMON_LDFLAGS)
include $(srcdir)/conf/common.mk

7
conf/i386-linuxbios.rmk
View file

@ -95,7 +95,7 @@ grub_emu_LDFLAGS = $(LIBCURSES)
# Modules.
pkgdata_MODULES = _linux.mod linux.mod normal.mod \
_multiboot.mod multiboot.mod play.mod \
cpuid.mod serial.mod
cpuid.mod serial.mod ata.mod
# For _linux.mod.
_linux_mod_SOURCES = loader/i386/pc/linux.c
@ -146,4 +146,9 @@ cpuid_mod_SOURCES = commands/i386/cpuid.c
cpuid_mod_CFLAGS = $(COMMON_CFLAGS)
cpuid_mod_LDFLAGS = $(COMMON_LDFLAGS)
# For ata.mod.
ata_mod_SOURCES = disk/ata.c
ata_mod_CFLAGS = $(COMMON_CFLAGS)
ata_mod_LDFLAGS = $(COMMON_LDFLAGS)
include $(srcdir)/conf/common.mk

10
disk/ata.c
View file

@ -24,7 +24,6 @@
#include <grub/time.h>
/* XXX: For now this only works on i386. */
#include <grub/cpu/io.h>
#include <grub/machine/biosdisk.h>
typedef enum
{
@ -733,8 +732,13 @@ GRUB_MOD_INIT(ata)
{
(void) mod; /* To stop warning. */
/* XXX: To prevent two drivers operating on the same disks. */
grub_biosdisk_fini ();
/* To prevent two drivers operating on the same disks. */
grub_disk_firmware_is_tainted = 1;
if (grub_disk_firmware_fini)
{
grub_disk_firmware_fini ();
grub_disk_firmware_fini = NULL;
}
/* ATA initialization. */
grub_ata_initialize ();

15
disk/i386/pc/biosdisk.c
View file

@ -312,12 +312,25 @@ static struct grub_disk_dev grub_biosdisk_dev =
.next = 0
};
static void
grub_disk_biosdisk_fini (void)
{
grub_disk_dev_unregister (&grub_biosdisk_dev);
}
GRUB_MOD_INIT(biosdisk)
{
if (grub_disk_firmware_is_tainted)
{
grub_printf ("Firmware is marked as tainted, refusing to initialize.\n");
return;
}
grub_disk_firmware_fini = grub_disk_biosdisk_fini;
grub_disk_dev_register (&grub_biosdisk_dev);
}
GRUB_MOD_FINI(biosdisk)
{
grub_disk_dev_unregister (&grub_biosdisk_dev);
grub_disk_biosdisk_fini ();
}

3
include/grub/disk.h
View file

@ -137,6 +137,9 @@ grub_err_t EXPORT_FUNC(grub_disk_write) (grub_disk_t disk,
grub_uint64_t EXPORT_FUNC(grub_disk_get_size) (grub_disk_t disk);
extern void (* EXPORT_VAR(grub_disk_firmware_fini)) (void);
extern int EXPORT_VAR(grub_disk_firmware_is_tainted);
#ifdef GRUB_UTIL
void grub_raid_init (void);
void grub_raid_fini (void);

3
kern/disk.c
View file

@ -43,6 +43,9 @@ struct grub_disk_cache
static struct grub_disk_cache grub_disk_cache_table[GRUB_DISK_CACHE_NUM];
void (*grub_disk_firmware_fini) (void);
int grub_disk_firmware_is_tainted;
#if 0
static unsigned long grub_disk_cache_hits;
static unsigned long grub_disk_cache_misses;