/* * This file is part of the coreboot project. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ /* * Store the initial timestamp for booting in mmx registers. This works * because the bootblock isn't being compiled with MMX support so mm0 and * mm1 will be preserved into romstage. */ .code32 .global stash_timestamp stash_timestamp: /* Save the BIST value */ movl %eax, %ebp finit rdtsc movd %eax, %mm0 movd %edx, %mm1 /* Restore the BIST value to %eax */ movl %ebp, %eax