diff options
| author | Joerg Roedel <jroedel@suse.de> | 2021-03-03 15:17:12 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-03-08 14:22:17 +0100 |
| commit | 78a81d88f60ba773cbe890205e1ee67f00502948 (patch) | |
| tree | d1f24b0b047de5c66ca0fe361c3fd6492e3952df /arch/x86/include/asm/proto.h | |
| parent | 5d5675df792ff67e74a500c4c94db0f99e6a10ef (diff) | |
x86/sev-es: Introduce ip_within_syscall_gap() helper
Introduce a helper to check whether an exception came from the syscall
gap and use it in the SEV-ES code. Extend the check to also cover the
compatibility SYSCALL entry path.
Fixes: 315562c9af3d5 ("x86/sev-es: Adjust #VC IST Stack on entering NMI handler")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: stable@vger.kernel.org # 5.10+
Link: https://lkml.kernel.org/r/20210303141716.29223-2-joro@8bytes.org
Diffstat (limited to 'arch/x86/include/asm/proto.h')
| -rw-r--r-- | arch/x86/include/asm/proto.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h index 2c35f1c01a2d..b6a9d51d1d79 100644 --- a/arch/x86/include/asm/proto.h +++ b/arch/x86/include/asm/proto.h @@ -25,6 +25,7 @@ void __end_SYSENTER_singlestep_region(void); void entry_SYSENTER_compat(void); void __end_entry_SYSENTER_compat(void); void entry_SYSCALL_compat(void); +void entry_SYSCALL_compat_safe_stack(void); void entry_INT80_compat(void); #ifdef CONFIG_XEN_PV void xen_entry_INT80_compat(void); |