[PATCH] i386: need to pass virtual address to smp_read_mpc()

I'm seeing a kernel panic on an ES7000-600 when booting in virtual wire
mode.  The panic happens because smp_read_mpc() is passed a physical
address, and it should be virtual.  I tested the attached patch on the
ES7000-600 and on a 2 cpu Dell box, and saw no problems on either.

Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 0102f3d50e57..e7609abf3796 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -710,7 +710,7 @@ void __init get_smp_config (void)
                  * Read the physical hardware table.  Anything here will
                  * override the defaults.
                  */
-                if (!smp_read_mpc((void *)mpf->mpf_physptr)) {
+                if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
                         smp_found_config = 0;
                         printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
                         printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");