On 08.03.22 09:07, Jan Beulich wrote:
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On 07.03.2022 22:13, Bjoern Doebel wrote:
@@ -159,7 +200,11 @@ void noinline arch_l
On 07.03.2022 22:13, Bjoern Doebel wrote:
> @@ -159,7 +200,11 @@ void noinline arch_livepatch_apply(struct livepatch_func
> *func)
> */
> void noinline arch_livepatch_revert(const struct livepatch_func *func)
> {
> -memcpy(func->old_addr, func->opaque, livepatch_insn_len(func));
> +str
Xen enabled CET for supporting architectures. The control flow aspect of
CET expects functions that can be called indirectly (i.e., via function
pointers) to start with an ENDBR64 instruction. Otherwise a control flow
exception is raised.
This expectation breaks livepatching flows because we patch
