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authorThomas Gleixner <tglx@linutronix.de>2023-08-01 16:36:25 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-08 20:03:47 +0200
commitb0837880fa65fa4a6dc407b42e9b33e18f7b44e3 (patch)
tree6c2b940c128f695049ec5266d4a95758fddb68c4 /init
parent8183a89caf67a1f56f1da1d6081e26a0ae7a5fdf (diff)
downloadlinux-b0837880fa65fa4a6dc407b42e9b33e18f7b44e3.tar.gz
init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()
commit 439e17576eb47f26b78c5bbc72e344d4206d2327 upstream

Invoke the X86ism mem_encrypt_init() from X86 arch_cpu_finalize_init() and
remove the weak fallback from the core code.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230613224545.670360645@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/main.c11
1 files changed, 0 insertions, 11 deletions
diff --git a/init/main.c b/init/main.c
index 3ad2400e7aa4..5b53f04571bb 100644
--- a/init/main.c
+++ b/init/main.c
@@ -96,7 +96,6 @@
 #include <linux/cache.h>
 #include <linux/rodata_test.h>
 #include <linux/jump_label.h>
-#include <linux/mem_encrypt.h>
 #include <linux/kcsan.h>
 #include <linux/init_syscalls.h>
 #include <linux/stackdepot.h>
@@ -780,8 +779,6 @@ void __init __weak thread_stack_cache_init(void)
 }
 #endif
 
-void __init __weak mem_encrypt_init(void) { }
-
 void __init __weak poking_init(void) { }
 
 void __init __weak pgtable_cache_init(void) { }
@@ -1083,14 +1080,6 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void)
 	 */
 	locking_selftest();
 
-	/*
-	 * This needs to be called before any devices perform DMA
-	 * operations that might use the SWIOTLB bounce buffers. It will
-	 * mark the bounce buffers as decrypted so that their usage will
-	 * not cause "plain-text" data to be decrypted when accessed.
-	 */
-	mem_encrypt_init();
-
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_start && !initrd_below_start_ok &&
 	    page_to_pfn(virt_to_page((void *)initrd_start)) < min_low_pfn) {