diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | src/arch/x86/lib/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/arch/x86/lib/memcpy.c | 13 |
3 files changed, 21 insertions, 0 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 314646fdb9..5ee7c4ac77 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -76,6 +76,10 @@ config CMOS_DEFAULT_FILE config BOOTBLOCK_SOUTHBRIDGE_INIT string +config HAVE_ARCH_MEMCPY + bool + default y + config BIG_ENDIAN bool default n diff --git a/src/arch/x86/lib/Makefile.inc b/src/arch/x86/lib/Makefile.inc index 3388a9dea3..f99e429eef 100644 --- a/src/arch/x86/lib/Makefile.inc +++ b/src/arch/x86/lib/Makefile.inc @@ -8,8 +8,12 @@ ramstage-$(CONFIG_MMCONF_SUPPORT) += pci_ops_mmconf.c ramstage-y += pci_ops_auto.c ramstage-y += exception.c ramstage-$(CONFIG_IOAPIC) += ioapic.c +ramstage-y += memcpy.c romstage-y += romstage_console.c romstage-y += cbfs_and_run.c +romstage-y += memcpy.c + +smm-y += memcpy.c $(obj)/arch/x86/lib/console.ramstage.o :: $(obj)/build.h diff --git a/src/arch/x86/lib/memcpy.c b/src/arch/x86/lib/memcpy.c new file mode 100644 index 0000000000..de210928a3 --- /dev/null +++ b/src/arch/x86/lib/memcpy.c @@ -0,0 +1,13 @@ +#include <string.h> + +void *memcpy(void *__restrict __dest, + __const void *__restrict __src, size_t __n) +{ + asm("cld\n" + "rep\n" + "movsb" + : /* no input (?) */ + :"S"(__src), "D"(__dest), "c"(__n) + ); + return __dest; +} |