The device tree is not encrypted and needs to be accessed as such. Be sure
to memmap it without the encryption mask set.
Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com>
---
arch/x86/kernel/devicetree.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 3fe45f8..ff11f7a 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -22,6 +22,7 @@
#include <asm/pci_x86.h>
#include <asm/setup.h>
#include <asm/i8259.h>
+#include <asm/mem_encrypt.h>
__initdata u64 initial_dtb;
char __initdata cmd_line[COMMAND_LINE_SIZE];
@@ -276,11 +277,12 @@ static void __init x86_flattree_get_config(void)
map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128);
- initial_boot_params = dt = early_memremap(initial_dtb, map_len);
+ initial_boot_params = dt = sme_early_memremap(initial_dtb, map_len);
size = of_get_flat_dt_size();
if (map_len < size) {
early_memunmap(dt, map_len);
- initial_boot_params = dt = early_memremap(initial_dtb, size);
+ initial_boot_params = dt = sme_early_memremap(initial_dtb,
+ size);
map_len = size;
}
--
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