From: Wei Liu <wei.liu2@citrix.com>
To: Tamas K Lengyel <tamas@tklengyel.com>
Cc: Kevin Tian <kevin.tian@intel.com>, Wei Liu <wei.liu2@citrix.com>,
Jun Nakajima <jun.nakajima@intel.com>,
Razvan Cojocaru <rcojocaru@bitdefender.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>,
Jan Beulich <jbeulich@suse.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH v7 2/3] x86/vm_event: Add HVM debug exception vm_events
Date: Sat, 2 Jul 2016 11:32:05 +0100 [thread overview]
Message-ID: <20160702103205.GE32594@citrix.com> (raw)
In-Reply-To: <1467050887-5806-2-git-send-email-tamas@tklengyel.com>
On Mon, Jun 27, 2016 at 12:08:06PM -0600, Tamas K Lengyel wrote:
> Since in-guest debug exceptions are now unconditionally trapped to Xen, adding
> a hook for vm_event subscribers to tap into this new always-on guest event. We
> rename along the way hvm_event_breakpoint_type to hvm_event_type to better
> match the various events that can be passed with it. We also introduce the
> necessary monitor_op domctl's to enable subscribing to the events.
>
> This patch also provides monitor subscribers to int3 events proper access
> to the instruction length necessary for accurate event-reinjection. Without
> this subscribers manually have to evaluate if the int3 instruction has any
> prefix attached which would change the instruction length.
>
> Signed-off-by: Tamas K Lengyel <tamas@tklengyel.com>
> ---
> Cc: Ian Jackson <ian.jackson@eu.citrix.com>
> Cc: Wei Liu <wei.liu2@citrix.com>
> Cc: Razvan Cojocaru <rcojocaru@bitdefender.com>
> Cc: Jan Beulich <jbeulich@suse.com>
> Cc: Andrew Cooper <andrew.cooper3@citrix.com>
> Cc: Jun Nakajima <jun.nakajima@intel.com>
> Cc: Kevin Tian <kevin.tian@intel.com>
>
> v7: Add rc < 0 clause for crash case in vmx and cosmetic fixes
> ---
> tools/libxc/include/xenctrl.h | 3 +-
> tools/libxc/xc_monitor.c | 25 +++++++++++++++
> tools/tests/xen-access/xen-access.c | 61 ++++++++++++++++++++++++++++++++-----
Acked-by: Wei Liu <wei.liu2@citrix.com>
FAOD I expect HV side committer to take care of this patch.
Wei.
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next prev parent reply other threads:[~2016-07-02 10:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-27 18:08 [PATCH v7 1/3] vm_event: clear up return value of vm_event_monitor_traps Tamas K Lengyel
2016-06-27 18:08 ` [PATCH v7 2/3] x86/vm_event: Add HVM debug exception vm_events Tamas K Lengyel
2016-06-27 18:20 ` Razvan Cojocaru
2016-06-28 7:37 ` Jan Beulich
2016-06-29 17:26 ` Tamas K Lengyel
2016-06-30 9:05 ` Jan Beulich
2016-06-29 1:56 ` Tian, Kevin
2016-07-02 10:32 ` Wei Liu [this message]
2016-06-27 18:08 ` [PATCH v7 3/3] x86/vmx: Clean up TRAP_int3 handling Tamas K Lengyel
2016-06-29 1:58 ` Tian, Kevin
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