From: Edgar Hucek <hostmaster@ed-soft.at>
To: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/1] Fix boot on efi 32 bit Machines [try #2]
Date: Fri, 23 Jun 2006 11:43:02 +0200 [thread overview]
Message-ID: <449BB7A6.4050802@ed-soft.at> (raw)
Fix EFI boot on 32 bit machines with pcie port.
Efi machines does not have an e820 memory map.
This bug makes native efi boots on Intel Mac's
impossible.
Signed-off-by: Edgar Hucek <hostmaster@ed-soft.at>
--- a/arch/i386/kernel/setup.c 2006-06-19 09:12:09.000000000 +0200
+++ b/arch/i386/kernel/setup.c 2006-06-19 09:12:24.000000000 +0200
@@ -975,24 +975,28 @@
u64 start = s;
u64 end = e;
int i;
- for (i = 0; i < e820.nr_map; i++) {
- struct e820entry *ei = &e820.map[i];
- if (type && ei->type != type)
- continue;
- /* is the region (part) in overlap with the current region ?*/
- if (ei->addr >= end || ei->addr + ei->size <= start)
- continue;
- /* if the region is at the beginning of <start,end> we move
- * start to the end of the region since it's ok until there
- */
- if (ei->addr <= start)
- start = ei->addr + ei->size;
- /* if start is now at or beyond end, we're done, full
- * coverage */
- if (start >= end)
- return 1; /* we're done */
+ if (!efi_enabled) {
+ for (i = 0; i < e820.nr_map; i++) {
+ struct e820entry *ei = &e820.map[i];
+ if (type && ei->type != type)
+ continue;
+ /* is the region (part) in overlap with the current region ?*/
+ if (ei->addr >= end || ei->addr + ei->size <= start)
+ continue;
+ /* if the region is at the beginning of <start,end> we move
+ * start to the end of the region since it's ok until there
+ */
+ if (ei->addr <= start)
+ start = ei->addr + ei->size;
+ /* if start is now at or beyond end, we're done, full
+ * coverage */
+ if (start >= end)
+ return 1; /* we're done */
+ }
+ return 0;
+ } else {
+ return 1;
}
- return 0;
}
/*
next reply other threads:[~2006-06-23 9:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-23 9:43 Edgar Hucek [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-06-24 19:18 [PATCH 1/1] Fix boot on efi 32 bit Machines [try #2] Mikael Pettersson
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