From: Mukesh Rathor <mukesh.rathor@oracle.com>
To: yandong han <toyandong@gmail.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Subject: Re: set the eflags.tf of VM
Date: Tue, 9 Jul 2013 12:38:01 -0700 [thread overview]
Message-ID: <20130709123801.3d4a336b@mantra.us.oracle.com> (raw)
In-Reply-To: <CACht+-Qa8E8DDp8ZEOWW7Pbq95=wAGnDVUSaRShC6YQ-H6gY7g@mail.gmail.com>
On Tue, 9 Jul 2013 16:59:27 +0800
yandong han <toyandong@gmail.com> wrote:
> hi,all
> has anyone set the eflags.TF of vm?
> I want to introdeuce a VM into single-step by setting the
> eflags.TF of vm, then I disassemble the bytes at RIP to figure out
> what's going on . I have set the trap flag ,but I didn't achieve what
> I want. First, I only get hlt,mov, rdtsc, clts, in, out . Second, the
> VM always crash. does anyone have experience and give me some help?
> ----------------------------------------------------------
> best regards,
> yandong
If it's HVM, look at MTF, otherwise look at debugger_trap_entry and it's
callers. Can't you just use gdbsx in tools/debugger/gdbsx? You can look
at gdbsx source too...
Mukesh
prev parent reply other threads:[~2013-07-09 19:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-09 8:59 set the eflags.tf of VM yandong han
2013-07-09 19:38 ` Mukesh Rathor [this message]
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