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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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6b995d0168
Forcibly disable KCSAN for the sev-nmi.c source file, which only
contains functions annotated as 'noinstr' but is emitted with calls to
KCSAN instrumentation nonetheless. E.g.,
vmlinux.o: error: objtool: __sev_es_nmi_complete+0x58: call to __kcsan_check_access() leaves .noinstr.text section
make[2]: *** [/usr/local/google/home/ardb/linux/scripts/Makefile.vmlinux_o:72: vmlinux.o] Error 1
Fixes: a3cbbb4717 ("x86/boot: Move SEV startup code into startup/")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/20250714073402.4107091-2-ardb+git@google.com
11 lines
321 B
Makefile
11 lines
321 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-y += core.o sev-nmi.o vc-handle.o
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# Clang 14 and older may fail to respect __no_sanitize_undefined when inlining
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UBSAN_SANITIZE_sev-nmi.o := n
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# GCC may fail to respect __no_sanitize_address or __no_kcsan when inlining
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KASAN_SANITIZE_sev-nmi.o := n
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KCSAN_SANITIZE_sev-nmi.o := n
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