From: Peng Fan peng.fan@nxp.com
When run `virtio scan` on i.MX95, there is abort when accessing virtio mmio region. The issue is the mmio region is not mapped. So let's map all virtio mmio regions.
Signed-off-by: Peng Fan peng.fan@nxp.com --- board/xen/xenguest_arm64/xenguest_arm64.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/board/xen/xenguest_arm64/xenguest_arm64.c b/board/xen/xenguest_arm64/xenguest_arm64.c index 244070a242d..1d2946f4fde 100644 --- a/board/xen/xenguest_arm64/xenguest_arm64.c +++ b/board/xen/xenguest_arm64/xenguest_arm64.c @@ -31,6 +31,9 @@
DECLARE_GLOBAL_DATA_PTR;
+#define GUEST_VIRTIO_MMIO_BASE 0x2000000 +#define GUEST_VIRTIO_MMIO_SIZE 0x100000 + int board_init(void) { return 0; @@ -212,6 +215,15 @@ static int setup_mem_map(void) PTE_BLOCK_INNER_SHARE); i++;
+ if (CONFIG_IS_ENABLED(VIRTIO_MMIO)) { + xen_mem_map[i].virt = GUEST_VIRTIO_MMIO_BASE; + xen_mem_map[i].phys = GUEST_VIRTIO_MMIO_BASE; + xen_mem_map[i].size = GUEST_VIRTIO_MMIO_SIZE; + xen_mem_map[i].attrs = (PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | + PTE_BLOCK_NON_SHARE); + i++; + } + mem = get_next_memory_node(blob, -1); if (mem < 0) { printf("%s: Missing /memory node\n", __func__); @@ -219,6 +231,11 @@ static int setup_mem_map(void) }
for (; i < MAX_MEM_MAP_REGIONS; i++) { + if (CONFIG_IS_ENABLED(VIRTIO_MMIO)) { + ret = fdt_node_check_compatible(blob, mem, "virtio,mmio"); + if (!ret) + continue; + } ret = fdt_get_resource(blob, mem, "reg", reg++, &res); if (ret == -FDT_ERR_NOTFOUND) { reg = 0;