Commit 354678c5 authored by Jan Kiszka's avatar Jan Kiszka Committed by Paolo Bonzini
Browse files

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: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent df67696e

kvm-all.c

+2 −26
Original line number Diff line number Diff line
@@ -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;

    }

}