diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2013-11-08 10:46:57 +0100 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2013-11-10 20:41:05 +0100 |
| commit | e1539ba93185931f970f0fdf7d008cbaaf9d234f (patch) | |
| tree | b422f401c87ce93fe8d8442efd74261d9528a30c /payloads/libpayload/include/x86/arch | |
| parent | 04134a52b2077d0a77819ea12ee9646050e8edc0 (diff) | |
libpayload: add memory clobber to ins{b,w,l}
Change-Id: I3c4b8a9eeb6c4b2bcc58ccff091b4c997b2da923
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/4034
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'payloads/libpayload/include/x86/arch')
| -rw-r--r-- | payloads/libpayload/include/x86/arch/io.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/payloads/libpayload/include/x86/arch/io.h b/payloads/libpayload/include/x86/arch/io.h index 31a8f88410..bcfd30771e 100644 --- a/payloads/libpayload/include/x86/arch/io.h +++ b/payloads/libpayload/include/x86/arch/io.h @@ -92,17 +92,20 @@ static inline void outsb(int port, const void *addr, unsigned long count) static inline void insl(int port, void *addr, unsigned long count) { - __asm__ __volatile__("rep; insl" : "+D"(addr), "+c"(count) : "d"(port)); + __asm__ __volatile__("rep; insl" : "+D"(addr), "+c"(count) : "d"(port) + : "memory"); } static inline void insw(int port, void *addr, unsigned long count) { - __asm__ __volatile__("rep; insw" : "+D"(addr), "+c"(count) : "d"(port)); + __asm__ __volatile__("rep; insw" : "+D"(addr), "+c"(count) : "d"(port) + : "memory"); } static inline void insb(int port, void *addr, unsigned long count) { - __asm__ __volatile__("rep; insb" : "+D"(addr), "+c"(count) : "d"(port)); + __asm__ __volatile__("rep; insb" : "+D"(addr), "+c"(count) : "d"(port) + : "memory"); } #endif |