[PATCH] efi: Improve logging around memmap init

[Bartosz Szczepanek <bsz@amazon.de>]

Be more informative if memremap fails, and print out physical address
together with size. This change intends to make investigations of such
early failures slightly easier.

Signed-off-by: Bartosz Szczepanek <bsz@amazon.de>
---
 drivers/firmware/efi/memmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 34109fd86c55..f1c04d7cfd71 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -31,31 +31,32 @@
  * Returns: zero on success, a negative error code on failure.
  */
 int __init __efi_memmap_init(struct efi_memory_map_data *data)
 {
 	struct efi_memory_map map;
 	phys_addr_t phys_map;
 
 	phys_map = data->phys_map;
 
 	if (data->flags & EFI_MEMMAP_LATE)
 		map.map = memremap(phys_map, data->size, MEMREMAP_WB);
 	else
 		map.map = early_memremap(phys_map, data->size);
 
 	if (!map.map) {
-		pr_err("Could not map the memory map!\n");
+		pr_err("Could not map the memory map! phys_map=%pa, size=0x%lx\n",
+			&phys_map, data->size);
 		return -ENOMEM;
 	}
 
 	map.phys_map = data->phys_map;
 	map.nr_map = data->size / data->desc_size;
 	map.map_end = map.map + data->size;
 
 	map.desc_version = data->desc_version;
 	map.desc_size = data->desc_size;
 	map.flags = data->flags;
 
 	set_bit(EFI_MEMMAP, &efi.flags);
 
 	efi.memmap = map;
 
-- 
2.47.1