Re: [Qemu-devel] in_asm substitute for accel=kvm:tcg

[Andriy Gapon]

on 19/09/2013 19:53 Paolo Bonzini said the following:
> 1) Can you try loading the kvm_intel module with
> emulate_invalid_guest_state=0?

Will do.

> 2) What are the contents of fs and gs?  Why are they not zeroed?
> Perhaps that is causing invalid guest state emulation to run, and then
> something is triggering a bug in emulate_invalid_guest_state itself.

I will try to find this out.

> 3) What is at 0x9315?

This I can answer immediately.  It looks like this address even gets executed
earlier:
 qemu-system-x86-12024 [002] 278153.809990: kvm_emulate_insn:     0:9315:ea 1a
93 00 00 (real)
 qemu-system-x86-12024 [002] 278153.809991: kvm_entry:            vcpu 0
 qemu-system-x86-12024 [002] 278153.809992: kvm_emulate_insn:     0:931a:31 c0
(real)

I guess it's a jump to 931a.
Puzzling that later it becomes a jump to self.
-- 
Andriy Gapon