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kvm: Simplify kvm_handle_io 

Now that cpu_in/out is just a wrapper around address_space_rw, we can
also call the latter directly. As host endianness == guest endianness,
there is no need for the memory access helpers st*_p/ld*_p as well.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2013-08-13 14:43:57 +02:00 committed by Paolo Bonzini
parent df67696e97
commit 354678c5ce
1 changed files with 2 additions and 26 deletions
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28
kvm-all.c
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@ -1508,32 +1508,8 @@ static void kvm_handle_io(uint16_t port, void *data, int direction, int size,
uint8_t *ptr = data;
for (i = 0; i < count; i++) {
if (direction == KVM_EXIT_IO_IN) {
switch (size) {
case 1:
stb_p(ptr, cpu_inb(port));
break;
case 2:
stw_p(ptr, cpu_inw(port));
break;
case 4:
stl_p(ptr, cpu_inl(port));
break;
}
} else {
switch (size) {
case 1:
cpu_outb(port, ldub_p(ptr));
break;
case 2:
cpu_outw(port, lduw_p(ptr));
break;
case 4:
cpu_outl(port, ldl_p(ptr));
break;
}
}
address_space_rw(&address_space_io, port, ptr, size,
direction == KVM_EXIT_IO_OUT);
ptr += size;
}
}