commit
d147553b64bad34d2f92cb7d8ba454ae95c3baac upstream.
Ensure the Xen entry also passes through UNTRAIN_RET.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#endif
.endm
+SYM_CODE_START_LOCAL(xen_error_entry)
+ UNWIND_HINT_FUNC
+ UNTRAIN_RET
+ RET
+SYM_CODE_END(xen_error_entry)
+
/**
* idtentry_body - Macro to emit code calling the C function
* @cfunc: C function to be called
* switch the CR3. So it can skip invoking error_entry().
*/
ALTERNATIVE "call error_entry; movq %rax, %rsp", \
- "", X86_FEATURE_XENPV
+ "call xen_error_entry", X86_FEATURE_XENPV
ENCODE_FRAME_POINTER
UNWIND_HINT_REGS