Commit 14efdb5c authored by Alexander Graf's avatar Alexander Graf Committed by Peter Maydell
Browse files

hw/arm/virt: Declare fwcfg as dma cache coherent in dt 



Fw-cfg recently learned how to directly access guest memory and does so in
cache coherent fashion. Tell the guest about that fact when it's using DT.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
Reviewed-by: default avatarLaszlo Ersek <lersek@redhat.com>
Reviewed-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: default avatarShannon Zhao <shannon.zhao@linaro.org>
Message-id: 1486644810-33181-5-git-send-email-agraf@suse.de
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 3b5c492b

hw/arm/virt.c

+1 −0
Original line number Diff line number Diff line
@@ -929,6 +929,7 @@ static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) 
                            "compatible", "qemu,fw-cfg-mmio");

    qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg",

                                 2, base, 2, size);

    qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0);

    g_free(nodename);

    return fw_cfg;

}