[coreboot] [v2] r4916 - trunk/src/arch/i386/boot

[svn at coreboot.org]

Author: stepan
Date: 2009-11-05 18:06:43 +0000 (Thu, 05 Nov 2009)
New Revision: 4916

Modified:
   trunk/src/arch/i386/boot/acpi.c
Log:
if x86emu was running for VGA init a corrupted low table RSDP
is generated in the F segment. Clear the memory before generating an
RSDP to fix the problem.

Signed-off-by: Stefan Reinauer <stepan at coresystems.de>
Acked-by: Stefan Reinauer <stepan at coresystems.de>



Modified: trunk/src/arch/i386/boot/acpi.c
===================================================================
--- trunk/src/arch/i386/boot/acpi.c	2009-11-05 17:24:03 UTC (rev 4915)
+++ trunk/src/arch/i386/boot/acpi.c	2009-11-05 18:06:43 UTC (rev 4916)
@@ -424,6 +424,7 @@
 
 void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt, acpi_xsdt_t *xsdt)
 {
+	memset(rsdp, 0, sizeof(acpi_rsdp_t));
 	memcpy(rsdp->signature, RSDP_SIG, 8);
 	memcpy(rsdp->oem_id, OEM_ID, 6);
 	rsdp->length		= sizeof(acpi_rsdp_t);