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authorArd Biesheuvel <ardb@kernel.org>2024-02-27 16:19:16 +0100
committerBorislav Petkov (AMD) <bp@alien8.de>2024-03-04 18:12:37 +0100
commit428080c9b19bfda37c478cd626dbd3851db1aff9 (patch)
tree699df109a9062adc27d062d89d79fff4c626a347 /arch/x86/boot
parent48204aba801f1b512b3abed10b8e1a63e03f3dd1 (diff)
x86/sev: Move early startup code into .head.text section
In preparation for implementing rigorous build time checks to enforce that only code that can support it will be called from the early 1:1 mapping of memory, move SEV init code that is called in this manner to the .head.text section. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Tested-by: Tom Lendacky <thomas.lendacky@amd.com> Link: https://lore.kernel.org/r/20240227151907.387873-19-ardb+git@google.com
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/sev.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index 073291832f44..bea0719d70f2 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -116,6 +116,9 @@ static bool fault_in_kernel_space(unsigned long address)
#undef __init
#define __init
+#undef __head
+#define __head
+
#define __BOOT_COMPRESSED
/* Basic instruction decoding support needed */