On systems with VHE the kernel and KVM's world-switch code run at the
same exception level. Code that is only used on a VHE system does not
need to be annotated as __hyp_text as it can reside anywhere in the
kernel text.
__hyp_text was also used to prevent kprobes from patching breakpoint
instructions into this region, as this code runs at a different
exception level. While this is no longer true with VHE, KVM still
switches VBAR_EL1, meaning a kprobe's breakpoint executed in the
world-switch code will cause a hyp-panic.
Move the __hyp_text check in the kprobes blacklist so it applies on
VHE systems too, to cover the common code and guest enter/exit
assembly.
Fixes:
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||
|---|---|---|
| .. | ||
| Makefile | ||
| decode-insn.c | ||
| decode-insn.h | ||
| kprobes.c | ||
| kprobes_trampoline.S | ||
| simulate-insn.c | ||
| simulate-insn.h | ||
| uprobes.c | ||