* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New value
GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM. * kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM on qemu. * kern/ieee1275/init.c (grub_claim_heap): Don0t allocate below 1.5MiB if GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM is set.
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4 changed files with 33 additions and 0 deletions
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@ -1,3 +1,12 @@
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2010-05-05 Vladimir Serbinenko <phcoder@gmail.com>
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* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New value
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GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM.
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* kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
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GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM on qemu.
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* kern/ieee1275/init.c (grub_claim_heap): Don0t allocate below
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1.5MiB if GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM is set.
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2010-05-05 Vladimir Serbinenko <phcoder@gmail.com>
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* term/ieee1275/ofconsole.c (grub_ofconsole_getkey): Fix off-by-one
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@ -100,6 +100,9 @@ enum grub_ieee1275_flag
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/* Open Hack'Ware don't support the ANSI sequence. */
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GRUB_IEEE1275_FLAG_NO_ANSI,
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/* OpenFirmware hangs on qemu if one requests any memory below 1.5 MiB. */
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GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM,
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};
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extern int EXPORT_FUNC(grub_ieee1275_test_flag) (enum grub_ieee1275_flag flag);
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@ -59,6 +59,7 @@ grub_ieee1275_find_options (void)
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char tmp[32];
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int is_smartfirmware = 0;
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int is_olpc = 0;
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int is_qemu = 0;
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grub_ieee1275_finddevice ("/", &root);
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grub_ieee1275_finddevice ("/options", &options);
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@ -79,6 +80,11 @@ grub_ieee1275_find_options (void)
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if (rc >= 0 && !grub_strcmp (tmp, "OLPC"))
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is_olpc = 1;
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rc = grub_ieee1275_get_property (root, "model",
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tmp, sizeof (tmp), 0);
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if (rc >= 0 && !grub_strcmp (tmp, "Emulated PC"))
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is_qemu = 1;
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if (is_smartfirmware)
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{
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/* Broken in all versions */
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@ -135,6 +141,10 @@ grub_ieee1275_find_options (void)
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grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_OFDISK_SDCARD_ONLY);
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}
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if (is_qemu)
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/* OpenFirmware hangs on qemu if one requests any memory below 1.5 MiB. */
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grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM);
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if (! grub_ieee1275_finddevice ("/rom/boot-rom", &bootrom))
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{
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rc = grub_ieee1275_get_property (bootrom, "model", tmp, sizeof (tmp), 0);
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@ -133,6 +133,17 @@ static void grub_claim_heap (void)
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if (type != 1)
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return 0;
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if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_PRE1_5M_CLAIM))
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{
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if (addr + len <= 0x180000)
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return 0;
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if (addr < 0x180000)
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{
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len = addr + len - 0x180000;
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addr = 0x180000;
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}
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}
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len -= 1; /* Required for some firmware. */
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/* Never exceed HEAP_MAX_SIZE */
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