Displaying 20 results from an estimated 57 matches for "unhook".
2019 Aug 13
1
[RFC PATCH v6 02/92] kvm: introspection: add basic ioctls (hook/unhook)
On 09/08/19 17:59, Adalbert Laz?r wrote:
> +static int kvmi_recv(void *arg)
> +{
> + struct kvmi *ikvm = arg;
> +
> + kvmi_info(ikvm, "Hooking VM\n");
> +
> + while (kvmi_msg_process(ikvm))
> + ;
> +
> + kvmi_info(ikvm, "Unhooking VM\n");
> +
> + kvmi_end_introspection(ikvm);
> +
> + return 0;
> +}
> +
Rename this to kvmi_recv_thread instead, please.
> +
> + /*
> + * Make sure all the KVM/KVMI structures are linked and no pointer
> + * is read as NULL after the reference count has be...
2019 Aug 13
1
[RFC PATCH v6 01/92] kvm: introduce KVMI (VM introspection subsystem)
On Tue, Aug 13, 2019 at 02:09:51PM +0200, Paolo Bonzini wrote:
> On 13/08/19 13:57, Adalbert Laz?r wrote:
> >> The refcounting approach seems a bit backwards, and AFAICT is driven by
> >> implementing unhook via a message, which also seems backwards. I assume
> >> hook and unhook are relatively rare events and not performance critical,
> >> so make those the restricted/slow flows, e.g. force userspace to quiesce
> >> the VM by making unhook() mutually exclusive with every vc...
2007 Jul 21
0
[1134] trunk/wxruby2/swig/mark_free_impl.i: When window is deleted, unhook ruby obj from DATA_PTR to avoid MSW crashes
...ackground:#dfd;text-decoration:none;display:block;padding:0 10px;}
#patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;}
#patch .lines, .info {color:#888;background:#fff;}
--></style>
<title>[1134] trunk/wxruby2/swig/mark_free_impl.i: When window is deleted, unhook ruby obj from DATA_PTR to avoid MSW crashes</title>
</head>
<body>
<div id="msg">
<dl>
<dt>Revision</dt> <dd>1134</dd>
<dt>Author</dt> <dd>brokentoy</dd>
<dt>Date</dt> <dd>2007-07-21 11:51:00...
2019 Aug 13
0
[RFC PATCH v6 01/92] kvm: introduce KVMI (VM introspection subsystem)
On 13/08/19 13:57, Adalbert Laz?r wrote:
>> The refcounting approach seems a bit backwards, and AFAICT is driven by
>> implementing unhook via a message, which also seems backwards. I assume
>> hook and unhook are relatively rare events and not performance critical,
>> so make those the restricted/slow flows, e.g. force userspace to quiesce
>> the VM by making unhook() mutually exclusive with every vcpu ioctl() and...
2019 Aug 12
2
[RFC PATCH v6 01/92] kvm: introduce KVMI (VM introspection subsystem)
....h
> @@ -455,6 +455,10 @@ struct kvm {
> struct srcu_struct srcu;
> struct srcu_struct irq_srcu;
> pid_t userspace_pid;
> +
> + struct completion kvmi_completed;
> + refcount_t kvmi_ref;
The refcounting approach seems a bit backwards, and AFAICT is driven by
implementing unhook via a message, which also seems backwards. I assume
hook and unhook are relatively rare events and not performance critical,
so make those the restricted/slow flows, e.g. force userspace to quiesce
the VM by making unhook() mutually exclusive with every vcpu ioctl() and
maybe anything that takes k...
2019 Aug 09
0
[RFC PATCH v6 02/92] kvm: introspection: add basic ioctls (hook/unhook)
...ll finish when the
socket is closed by userspace (eg. when the guest is restarted) or by
the introspection tool. The uuid member of struct kvm_introspection is
used to show the guest id with the error messages.
On certain actions from userspace (pause, suspend, migrate, etc.) the
KVM_INTROSPECTION_UNHOOK ioctl is used to notify the introspection tool
to remove its hooks (eg. breakpoints).
Suggested-by: Stefan Hajnoczi <stefanha at redhat.com>
Suggested-by: Paolo Bonzini <pbonzini at redhat.com>
Co-developed-by: Mihai Don?u <mdontu at bitdefender.com>
Signed-off-by: Mihai Don?u &l...
2020 Jul 21
0
[PATCH v9 74/84] KVM: introspection: restore the state of descriptor-table register interception on unhook
From: Nicu?or C??u <ncitu at bitdefender.com>
This commit also ensures that the introspection tool and the userspace
do not disable each other the descriptor-table access VM-exit.
Signed-off-by: Nicu?or C??u <ncitu at bitdefender.com>
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
arch/x86/include/asm/kvmi_host.h | 4 +++
arch/x86/kvm/kvmi.c | 45
2020 Feb 07
0
[RFC PATCH v7 61/78] KVM: introspection: restore the state of CR3 interception on unhook
From: Nicu?or C??u <ncitu at bitdefender.com>
This commit also ensures that the introspection tool and the userspace
do not disable each other the CR3-write VM-exit.
Signed-off-by: Nicu?or C??u <ncitu at bitdefender.com>
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
arch/x86/include/asm/kvmi_host.h | 4 ++
arch/x86/kvm/kvmi.c | 64
2020 Feb 07
0
[RFC PATCH v7 59/78] KVM: introspection: restore the state of #BP interception on unhook
From: Nicu?or C??u <ncitu at bitdefender.com>
This commit also ensures that only the userspace or the introspection
tool can control the #BP interception exclusively at one time.
Signed-off-by: Nicu?or C??u <ncitu at bitdefender.com>
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
arch/x86/include/asm/kvm_host.h | 3 +
arch/x86/include/asm/kvmi_host.h | 22
2007 Mar 10
1
What code is related to the writable page?
In xen 3.0.4-1 source, where is the *unhook/rehook page table
implementation* which is important things in ''writable page table mode''.?
I can''t find it.
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
2020 Feb 07
0
[RFC PATCH v7 70/78] KVM: introspection: restore the state of MSR interception on unhook
From: Nicu?or C??u <ncitu at bitdefender.com>
This commit also ensures that the introspection tool and the userspace
do not disable each other the MSR access VM-exit.
Signed-off-by: Nicu?or C??u <ncitu at bitdefender.com>
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
arch/x86/include/asm/kvmi_host.h | 12 ++++
arch/x86/kvm/kvmi.c | 119
2007 Oct 16
8
Xeno Linux never pins L1 tables ?
hi,
I''m developing my own 32-bit (no PAE) paravirtualized kernel for xen with
Mini-OS as a starting point. I am currently working on process page table
support (equivalent of arch/i386/mm/pgtable-xen.c) and mostly following
Linux for the moment. I noticed that linux-2.6.18-xen never pins an L1 table
(a pte), yet __pgd_pin() walks the page directory and gives up write access
on the kernel
2016 Mar 08
1
[PATCH] fish: reset the console on ^Z RHBZ#1213844
Patch registers SIGTSTP hook where it sends reset terminal color
control sequence using write and fsync.
Handler is installed only if signal is not being ignored.
Patch uses rl_free_line_state and rl_cleanup_after_signal to unhook
readline from terminal, then it calls original TSTP handler using
approach in URL below and again hooks readline using
rl_reset_after_signal.
Handling is based on code from:
http://man7.org/tlpi/code/online/dist/pgsjc/handling_SIGTSTP.c.html
This approach seems to mostly work. User is sometimes a...
2020 Feb 07
0
[RFC PATCH v7 44/78] KVM: introspection: add KVMI_VM_CONTROL_EVENTS
With this command the introspection tool enables/disables VM events
(ie. KVMI_EVENT_UNHOOK), because no event (neither VM event, nor vCPU
event) will be sent to the introspection tool unless enabled/requested.
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
Documentation/virt/kvm/kvmi.rst | 44 +++++++++++++++--
include/linux/kvmi_host.h...
2020 Feb 07
0
[RFC PATCH v7 43/78] KVM: introspection: add KVMI_EVENT_UNHOOK
In certain situations (when the guest has to be paused, suspended,
migrated, etc.), userspace will use the KVM_INTROSPECTION_PREUNHOOK
ioctl in order to trigger the KVMI_EVENT_UNHOOK. If the event is sent
successfully (the VM has an active introspection channel), userspace
should delay the action (pause/suspend/...) to give the introspection
tool the chance to remove its hooks (eg. breakpoints) while the guest
is still running. On...
2020 Jul 21
0
[PATCH v9 45/84] KVM: introspection: add KVMI_VM_CONTROL_EVENTS
By default, all introspection VM events are disabled. The introspection
tool must explicitly enable the VM events it wants to receive. With
this command (KVMI_VM_CONTROL_EVENTS) it can enable/disable any VM event
(e.g. KVMI_EVENT_UNHOOK) if allowed by the device manager.
Signed-off-by: Adalbert Laz?r <alazar at bitdefender.com>
---
Documentation/virt/kvm/kvmi.rst | 44 +++++++++++++--
include/linux/kvmi_host.h | 2 +
include/uapi/linux/kvmi.h | 16 ++++--
.../testing/s...
2020 Jul 21
0
[PATCH v9 44/84] KVM: introspection: add KVMI_EVENT_UNHOOK
In certain situations (when the guest has to be paused,
suspended, migrated, etc.), the device manager will use
the KVM_INTROSPECTION_PREUNHOOK ioctl in order to trigger the
KVMI_EVENT_UNHOOK event. If the event is sent successfully (the VM has an
active introspection channel), the device manager should delay the action
(pause/suspend/...) to give the introspection tool the chance to remove
its hooks (eg. breakpoints) while the guest is st...
2005 Aug 23
1
Asterisk & Alcatel PBX
...ringing
tone in the fone but no SIP phone ring.
Of course from landline to sip it doesn't works.
I've dial 7777 fro a sip phone to simulate incoming call and the sip phone
ring.
If i replace the asterisk server by a simple analog phone, it ring.
Apparently, the asterisk server doesn't unhook.
I also activate the debug
notting happen when i try to make a call.
I already exchange the card, same problem.
I think it's a configuration problem but i don't know where.
Did someone can help me?
Thx
jme
2019 Oct 04
3
CentOS 8 network-scripts
...s OK if your KVM host is on LAN cable that never is disconnected
> or power goes down. But I have a laptop I use first at work where I
> use LAN and then at home where I use WLAN only, and suspending laptop
> is same as disconnecting LAN, bridge is disabled and KVM bridged
> network unhooked, and you can never reinitialize it without at least
> restarting kvm, and full treatmant is shuting down VM, restarting NM
> then network then starting VM again... So I just shutdown VM and
> laptop and boot everey itme I move. Maybe I can change this behavior now.
You and I have ne...
2006 Jul 25
18
[PATCH] turn off writable page tables
At OLS I gave a talk on some of the Xen scalability inhibitors, and one
of these was writable page tables. We went over why the feature does
not scale, but just as important, we found that the uniprocessor case
does not provide any advantage either. These tests were done on x86_64,
so I wanted to run the 1-way test on 32 bit to show the same problem.
So, I have run with writable PTs and