Messages in this thread Patch in this message | | | From | Jan Dakinevich <> | Subject | [PATCH v3 2/2] KVM: x86: set ctxt->have_exception in x86_decode_insn() | Date | Thu, 29 Aug 2019 08:23:20 +0000 |
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x86_emulate_instruction() takes into account ctxt->have_exception flag during instruction decoding, but in practice this flag is never set in x86_decode_insn().
Fixes: 6ea6e84 ("KVM: x86: inject exceptions produced by x86_decode_insn") Cc: Denis Lunev <den@virtuozzo.com> Cc: Roman Kagan <rkagan@virtuozzo.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Signed-off-by: Jan Dakinevich <jan.dakinevich@virtuozzo.com> --- arch/x86/kvm/emulate.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index bef3c3c..698efb8 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -5416,6 +5416,8 @@ int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len) ctxt->memopp->addr.mem.ea + ctxt->_eip); done: + if (rc == X86EMUL_PROPAGATE_FAULT) + ctxt->have_exception = true; return (rc != X86EMUL_CONTINUE) ? EMULATION_FAILED : EMULATION_OK; } -- 2.1.4
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