From: Alexander Graf <ag...@suse.de>
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: Alexander Graf <ag...@suse.de>
Reviewed-by: Laszlo Ersek <ler...@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
Reviewed-by: Shannon Zhao <shannon.z...@linaro.org>
Message-id: 1486644810-33181-5-git-send-email-ag...@suse.de
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/arm/virt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index d20e627..f3440f2 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -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;
}
--
2.7.4
