Some tests fail if DF=1. Restore it directly after executing the test, do not do it "magically" in print_serial.
Signed-off-by: Paolo Bonzini <[email protected]> --- x86/realmode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/x86/realmode.c b/x86/realmode.c index 35ace08..71c8a7d 100644 --- a/x86/realmode.c +++ b/x86/realmode.c @@ -26,7 +26,7 @@ static void print_serial(const char *buf) { unsigned long len = strlen(buf); - asm volatile ("cld; addr32/rep/outsb" : "+S"(buf), "+c"(len) : "d"(0xf1)); + asm volatile ("addr32/rep/outsb" : "+S"(buf), "+c"(len) : "d"(0xf1)); } static void exit(int code) @@ -109,6 +109,8 @@ static void exec_in_big_real_mode(struct insn_desc *insn) "pushfl \n\t" "popl %[save]+36 \n\t" + /* Restore DF as required by the harness code */ + "cld\n\t" "xor %[tmp], %[tmp] \n\t" "mov %[tmp], %%gs \n\t" : [tmp]"=&r"(tmp), [save]"+m"(save) -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
