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

From: Andriy Gapon
Subject: [Qemu-devel] in_asm substitute for accel=kvm:tcg
Date: Tue, 17 Sep 2013 14:37:17 +0300
User-agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:17.0) Gecko/20130810 Thunderbird/17.0.8

It seems that when qemu is run with accel=kvm:tcg then -d in_asm does not
produce anything.  At least, with the qemu and kvm that I have access to.
Is there any way to obtain equivalent logging in such a configuration?
A note: a host and a guest are both amd64 (x86_64).

Some background.  I am trying to debug a problem with booting a FreeBSD VM.  If
acceleration is not used then the VM boots just fine.  But with acceleration the
boot process hangs somewhere in FreeBSD boot loader, judging from what I see on
a screen.
I suspect that there could be a problem with jumping from real to protected mode
or some such "exotic" environment.  To narrow down the possibilities I would
like to examine execution trace and see where execution goes into the weeds.

Thank you very much in advance.
Andriy Gapon

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