Messages in this thread Patch in this message | | | Date | Fri, 08 Apr 2022 11:45:54 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 2/4] x86,xen,objtool: Add UNWIND hint |
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SYM_CODE_START*() doesn't get auto-validated and needs an UNWIND hint to get checked, add one.
vmlinux.o: warning: objtool: pvh_start_xen()+0x0: unreachable
Reported-by: Thomas Gleixner <tglx@linutronix.de> Reported-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/x86/platform/pvh/head.S | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/platform/pvh/head.S +++ b/arch/x86/platform/pvh/head.S @@ -50,6 +50,7 @@ #define PVH_DS_SEL (PVH_GDT_ENTRY_DS * 8) SYM_CODE_START_LOCAL(pvh_start_xen) + UNWIND_HINT_EMPTY cld lgdt (_pa(gdt))
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