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Re: [Qemu-devel] [PATCH 2/2] hw/arm/virt: fdt: generate distance-map whe
From: |
Shannon Zhao |
Subject: |
Re: [Qemu-devel] [PATCH 2/2] hw/arm/virt: fdt: generate distance-map when needed |
Date: |
Wed, 31 May 2017 09:16:33 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 2017/5/30 1:37, Andrew Jones wrote:
> This is based on patch Shannon Zhao originally posted.
>
> Cc: Shannon Zhao <address@hidden>
> Signed-off-by: Andrew Jones <address@hidden>
Reviewed-by: Shannon Zhao <address@hidden>
> ---
> hw/arm/virt.c | 21 +++++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> index c7c8159dfd59..4db2d4207cf2 100644
> --- a/hw/arm/virt.c
> +++ b/hw/arm/virt.c
> @@ -219,6 +219,27 @@ static void create_fdt(VirtMachineState *vms)
> "clk24mhz");
> qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vms->clock_phandle);
>
> + if (have_numa_distance) {
> + int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t);
> + uint32_t *matrix = g_malloc0(size);
> + int idx, i, j;
> +
> + for (i = 0; i < nb_numa_nodes; i++) {
> + for (j = 0; j < nb_numa_nodes; j++) {
> + idx = (i * nb_numa_nodes + j) * 3;
> + matrix[idx + 0] = cpu_to_be32(i);
> + matrix[idx + 1] = cpu_to_be32(j);
> + matrix[idx + 2] = cpu_to_be32(numa_info[i].distance[j]);
> + }
> + }
> +
> + qemu_fdt_add_subnode(fdt, "/distance-map");
> + qemu_fdt_setprop_string(fdt, "/distance-map", "compatible",
> + "numa-distance-map-v1");
> + qemu_fdt_setprop(fdt, "/distance-map", "distance-matrix",
> + matrix, size);
> + g_free(matrix);
> + }
> }
>
> static void fdt_add_psci_node(const VirtMachineState *vms)
>
--
Shannon