Previously we clobbered bits 63:8 of RAX when responding to this inb. This is not technically correct. We now only change the low 8 bits.
Signed-off-by: Gan Shun <[email protected]> Change-Id: Iacb0c72cbbb0b4dfa229824c19ba4b000177e567 --- user/vmm/io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/user/vmm/io.c b/user/vmm/io.c index 62766ee..b8fae46 100644 --- a/user/vmm/io.c +++ b/user/vmm/io.c @@ -208,7 +208,7 @@ int io(struct guest_thread *vm_thread) */ if (*ip16 == 0x21e4) { vm_tf->tf_rip += 2; - vm_tf->tf_rax = ~0ULL; + vm_tf->tf_rax |= 0x00000ff; return 0; } if (*ip16 == 0xed66) { -- 2.8.0.rc3.226.g39d4020 -- You received this message because you are subscribed to the Google Groups "Akaros" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. For more options, visit https://groups.google.com/d/optout.
