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| author | Mostafa Saleh <smostafa@google.com> | 2025-04-30 16:27:10 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-05-07 11:21:35 +0100 |
| commit | 61b38f7591fb434fce326c1d686a9793c7f418bc (patch) | |
| tree | 8740dc16c8e16ff51dc20e67d740dbf9d6e6290a /include/linux | |
| parent | d683a8561889c1813fe2ad6082769c91e3cb71b3 (diff) | |
| download | linux-61b38f7591fb434fce326c1d686a9793c7f418bc.tar.gz linux-61b38f7591fb434fce326c1d686a9793c7f418bc.zip | |
KVM: arm64: Introduce CONFIG_UBSAN_KVM_EL2
Add a new Kconfig CONFIG_UBSAN_KVM_EL2 for KVM which enables
UBSAN for EL2 code (in protected/nvhe/hvhe) modes.
This will re-use the same checks enabled for the kernel for
the hypervisor. The only difference is that for EL2 it always
emits a "brk" instead of implementing hooks as the hypervisor
can't print reports.
The KVM code will re-use the same code for the kernel
"report_ubsan_failure()" so #ifdefs are changed to also have this
code for CONFIG_UBSAN_KVM_EL2
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/20250430162713.1997569-4-smostafa@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ubsan.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ubsan.h b/include/linux/ubsan.h index c843816f5f68..3ab8d38aedb8 100644 --- a/include/linux/ubsan.h +++ b/include/linux/ubsan.h @@ -2,7 +2,7 @@ #ifndef _LINUX_UBSAN_H #define _LINUX_UBSAN_H -#ifdef CONFIG_UBSAN_TRAP +#if defined(CONFIG_UBSAN_TRAP) || defined(CONFIG_UBSAN_KVM_EL2) const char *report_ubsan_failure(u32 check_type); #else static inline const char *report_ubsan_failure(u32 check_type) |