- 23 paź, 2020 o 6:47, Jürgen Groß jgr...@suse.com napisał(a):
> On 23.10.20 00:59, Michał Leszczyński wrote:
>> Hello,
>>
>> when using DRAKVUF against a Windows 7 x64 DomU, the whole machine hangs
>> after a
>> few minutes.
>>
>> The chance
- 23 paź, 2020 o 6:47, Jürgen Groß jgr...@suse.com napisał(a):
> On 23.10.20 00:59, Michał Leszczyński wrote:
>> Hello,
>>
>> when using DRAKVUF against a Windows 7 x64 DomU, the whole machine hangs
>> after a
>> few minutes.
>>
>> The chance
(but still occurring sometimes). The issue is
observed with the default sched=credit2 and is no longer reproducible once
sched=credit is set.
Enclosed: panic log from my Dom0.
Best regards,
Michał Leszczyński
CERT Polska
paź 22 12:20:50 hostname kernel: rcu: INFO: rcu_sched self-detected stall
- 7 lip 2020 o 21:39, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> Intel Processor Trace is an architectural extension available in modern Intel
> family CPUs. It allows recording the detailed trace of activity while the
> processor executes the code. One
@@
+# Copyright (C) CERT Polska - NASK PIB
+# Author: Michał Leszczyński
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; under version 2 of the License
From: Michal Leszczynski
Implement necessary changes in common code/HVM to support
processor trace features. Define vmtrace_pt_* API and
implement trace buffer allocation/deallocation in common
code.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domain.c | 21
From: Michal Leszczynski
Allow to specify the size of per-vCPU trace buffer upon
domain creation. This is zero by default (meaning: not enabled).
Signed-off-by: Michal Leszczynski
---
docs/man/xl.cfg.5.pod.in | 13 +
tools/golang/xenlight/helpers.gen.go | 2 ++
From: Michal Leszczynski
Allow to map processor trace buffer using
acquire_resource().
Signed-off-by: Michal Leszczynski
---
xen/common/memory.c | 31 +++
xen/include/public/memory.h | 1 +
2 files changed, 32 insertions(+)
diff --git
From: Michal Leszczynski
Add functions in libxc that use the new XEN_DOMCTL_vmtrace interface.
Signed-off-by: Michal Leszczynski
---
tools/libxc/Makefile | 1 +
tools/libxc/include/xenctrl.h | 40
tools/libxc/xc_vmtrace.c | 87
From: Michal Leszczynski
Use Intel Processor Trace feature to provide vmtrace_pt_*
interface for HVM/VMX.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmx.c | 110 +
xen/include/asm-x86/hvm/vmx/vmcs.h | 3 +
xen/include/asm-x86/hvm/vmx/vmx.h
From: Michal Leszczynski
Implement domctl to manage the runtime state of
processor trace feature.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domctl.c | 50 +
xen/include/public/domctl.h | 28 +
2 files changed, 78
Intel Processor Trace is an architectural extension available in modern Intel
family CPUs. It allows recording the detailed trace of activity while the
processor executes the code. One might use the recorded trace to reconstruct
the code flow. It means, to find out the executed code paths,
From: Michal Leszczynski
Add vmtrace_pt_size domain parameter in live domain and
vmtrace_pt_order parameter in xen_domctl_createdomain.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domain.c | 6 ++
xen/common/domain.c | 9 +
xen/include/public/domctl.h | 1 +
From: Michal Leszczynski
Allow to acquire large resources by allowing acquire_resource()
to process items in batches, using hypercall continuation.
Be aware that this modifies the behavior of acquire_resource
call with frame_list=NULL. While previously it would return
the size of internal array
From: Michal Leszczynski
Check if Intel Processor Trace feature is supported by current
processor. Define vmtrace_supported global variable.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmcs.c | 15 ++-
xen/common/domain.c | 2
From: Michal Leszczynski
Define constants related to Intel Processor Trace features.
Signed-off-by: Michal Leszczynski
Acked-by: Andrew Cooper
---
xen/include/asm-x86/msr-index.h | 24
1 file changed, 24 insertions(+)
diff --git a/xen/include/asm-x86/msr-index.h
- 7 lip 2020 o 13:21, Jan Beulich jbeul...@suse.com napisał(a):
> On 07.07.2020 13:17, Michał Leszczyński wrote:
>> So would it be OK to use uint32_t everywhere and to store the trace buffer
>> size as number of kB? I think this is the most straightforward option.
>>
wrote:
>>>>> Hi,
>>>>>
>>>>> On 03/07/2020 11:11, Roger Pau Monné wrote:
>>>>>> On Fri, Jul 03, 2020 at 11:56:38AM +0200, Jan Beulich wrote:
>>>>>>> On 03.07.2020 11:44, Roger Pau Monné wrote:
>>>>>
- 6 lip 2020 o 10:31, Jan Beulich jbeul...@suse.com napisał(a):
> On 05.07.2020 21:11, Michał Leszczyński wrote:
>> - 5 lip 2020 o 20:54, Michał Leszczyński michal.leszczyn...@cert.pl
>> napisał(a):
>>> --- a/xen/arch/x86/domain.c
>>> +++ b/xen/arch/x86
- 6 lip 2020 o 11:47, Andrew Cooper andrew.coop...@citrix.com napisał(a):
> On 06/07/2020 09:33, Jan Beulich wrote:
>> On 05.07.2020 20:58, Michał Leszczyński wrote:
>>> - 5 lip 2020 o 20:55, Michał Leszczyński michal.leszczyn...@cert.pl
>>> napisał(a):
>>
- 5 lip 2020 o 20:54, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> From: Michal Leszczynski
>
> Add vmtrace_pt_size domain parameter in live domain and
> vmtrace_pt_order parameter in xen_domctl_createdomain.
>
> Signed-off-by: Michal Leszczynski
- 6 lip 2020 o 10:42, Roger Pau Monné roger@citrix.com napisał(a):
> On Sun, Jul 05, 2020 at 08:54:59PM +0200, Michał Leszczyński wrote:
>> From: Michal Leszczynski
>>
>> Implement necessary changes in common code/HVM to support
>> processor trace featur
- 5 lip 2020 o 20:54, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> From: Michal Leszczynski
>
> Implement necessary changes in common code/HVM to support
> processor trace features. Define vmtrace_pt_* API and
> implement trace buffer allocation/deallocation i
- 5 lip 2020 o 20:54, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> From: Michal Leszczynski
>
> Allow to specify the size of per-vCPU trace buffer upon
> domain creation. This is zero by default (meaning: not enabled).
>
> Signed-off-by: Michal Leszczynski
- 5 lip 2020 o 20:55, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> From: Michal Leszczynski
>
> Add an demonstration tool that uses xc_vmtrace_* calls in order
> to manage external IPT monitoring for DomU.
>
> Signed-off-by: Michal Leszczynski
>
From: Michal Leszczynski
Add functions in libxc that use the new XEN_DOMCTL_vmtrace interface.
Signed-off-by: Michal Leszczynski
---
tools/libxc/Makefile | 1 +
tools/libxc/include/xenctrl.h | 39 +++
tools/libxc/xc_vmtrace.c | 73
From: Michal Leszczynski
Add vmtrace_pt_size domain parameter in live domain and
vmtrace_pt_order parameter in xen_domctl_createdomain.
Signed-off-by: Michal Leszczynski
---
xen/common/domain.c | 12
xen/include/public/domctl.h | 1 +
xen/include/xen/sched.h | 4
From: Michal Leszczynski
Allow to acquire large resources by allowing acquire_resource()
to process items in batches, using hypercall continuation.
Be aware that this modifies the behavior of acquire_resource
call with frame_list=NULL. While previously it would return
the size of internal array
@@
+# Copyright (C) CERT Polska - NASK PIB
+# Author: Michał Leszczyński
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; under version 2 of the License
From: Michal Leszczynski
Implement domctl to manage the runtime state of
processor trace feature.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domctl.c | 48 +
xen/include/public/domctl.h | 26
2 files changed, 74
From: Michal Leszczynski
Implement necessary changes in common code/HVM to support
processor trace features. Define vmtrace_pt_* API and
implement trace buffer allocation/deallocation in common
code.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domain.c | 19 +++
From: Michal Leszczynski
Check if Intel Processor Trace feature is supported by current
processor. Define vmtrace_supported global variable.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmcs.c | 15 ++-
xen/common/domain.c | 2
From: Michal Leszczynski
Use Intel Processor Trace feature to provide vmtrace_pt_*
interface for HVM/VMX.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmx.c | 109 +
xen/include/asm-x86/hvm/vmx/vmcs.h | 3 +
xen/include/asm-x86/hvm/vmx/vmx.h
From: Michal Leszczynski
Allow to map processor trace buffer using
acquire_resource().
Signed-off-by: Michal Leszczynski
---
xen/common/memory.c | 28
xen/include/public/memory.h | 1 +
2 files changed, 29 insertions(+)
diff --git a/xen/common/memory.c
From: Michal Leszczynski
Allow to specify the size of per-vCPU trace buffer upon
domain creation. This is zero by default (meaning: not enabled).
Signed-off-by: Michal Leszczynski
---
docs/man/xl.cfg.5.pod.in | 11 +++
tools/golang/xenlight/helpers.gen.go | 2 ++
From: Michal Leszczynski
Define constants related to Intel Processor Trace features.
Signed-off-by: Michal Leszczynski
Acked-by: Andrew Cooper
---
xen/include/asm-x86/msr-index.h | 24
1 file changed, 24 insertions(+)
diff --git a/xen/include/asm-x86/msr-index.h
Intel Processor Trace is an architectural extension available in modern Intel
family CPUs. It allows recording the detailed trace of activity while the
processor executes the code. One might use the recorded trace to reconstruct
the code flow. It means, to find out the executed code paths,
- 3 lip 2020 o 9:58, Julien Grall jul...@xen.org napisał(a):
> Hi,
>
> On 02/07/2020 21:28, Michał Leszczyński wrote:
>> - 2 lip 2020 o 16:31, Julien Grall jul...@xen.org napisał(a):
>>
>>> On 02/07/2020 15:17, Jan Beulich wrote:
>>>> On 02.07.2
- 2 lip 2020 o 10:34, Jan Beulich jbeul...@suse.com napisał(a):
> On 02.07.2020 10:10, Roger Pau Monné wrote:
>> On Wed, Jul 01, 2020 at 10:42:55PM +0100, Andrew Cooper wrote:
>>> On 30/06/2020 13:33, Michał Leszczyński wrote:
>>>> diff --git a/xen/arch/x86/hvm
> Cheers,
>
> [1] <9a3f4d58-e5ad-c7a1-6c5f-42aa92101...@xen.org>
> [2]
>
> --
> Julien Grall
Guys,
could you express your final decision on this topic?
While I understand the discussion and the arguments you've raised,
I would like to know what particular elements should be moved where.
So are we going abstract way, or non-abstract-x86 only way?
Best regards,
Michał Leszczyński
CERT Polska
- 2 lip 2020 o 11:00, Roger Pau Monné roger@citrix.com napisał(a):
> On Tue, Jun 30, 2020 at 02:33:46PM +0200, Michał Leszczyński wrote:
>> diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
>> index 59bdc28c89..7b8289d436 100644
>> --- a/xen/in
- 30 cze 2020 o 20:03, Tamas K Lengyel tamas.k.leng...@gmail.com napisał(a):
> On Tue, Jun 30, 2020 at 11:39 AM Andrew Cooper
> wrote:
>>
>> On 30/06/2020 13:33, Michał Leszczyński wrote:
>> > diff --git a/xen/include/asm-x86/msr-index.h
>> > b/xen/in
From: Michal Leszczynski
Allow to acquire large resources by allowing acquire_resource()
to process items in batches, using hypercall continuation.
Signed-off-by: Michal Leszczynski
---
xen/common/memory.c | 32 +---
1 file changed, 29 insertions(+), 3 deletions(-)
y applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/tools/proctrace/Makefile b/tools/proctrace/Makefile
new file mode 100644
index 00..2983c477fe
--- /dev/null
+++ b/tools/proctrace/Makefile
From: Michal Leszczynski
Allow to map processor trace buffer using
acquire_resource().
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/mm.c | 25 +
xen/include/public/memory.h | 1 +
2 files changed, 26 insertions(+)
diff --git a/xen/arch/x86/mm.c
From: Michal Leszczynski
Implement domctl to manage the runtime state of
processor trace feature.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domctl.c | 48 +
xen/include/public/domctl.h | 26
2 files changed, 74
From: Michal Leszczynski
Allow to specify the size of per-vCPU trace buffer upon
domain creation. This is zero by default (meaning: not enabled).
Signed-off-by: Michal Leszczynski
---
docs/man/xl.cfg.5.pod.in | 10 ++
tools/golang/xenlight/helpers.gen.go | 2 ++
From: Michal Leszczynski
Add functions in libxc that use the new XEN_DOMCTL_vmtrace interface.
Signed-off-by: Michal Leszczynski
---
tools/libxc/Makefile | 1 +
tools/libxc/include/xenctrl.h | 39 +++
tools/libxc/xc_vmtrace.c | 73
From: Michal Leszczynski
Allocate processor trace buffer for each vCPU when the domain
is created, deallocate trace buffers on domain destruction.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/domain.c| 11 +++
xen/common/domain.c | 32
From: Michal Leszczynski
Use Intel Processor Trace feature in order to
provision vmtrace_pt_* features.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmx.c | 89 ++
xen/include/asm-x86/hvm/hvm.h | 38 +
From: Michal Leszczynski
Define constants related to Intel Processor Trace features.
Signed-off-by: Michal Leszczynski
---
xen/include/asm-x86/msr-index.h | 37 +
1 file changed, 37 insertions(+)
diff --git a/xen/include/asm-x86/msr-index.h
From: Michal Leszczynski
Check if Intel Processor Trace feature is supported by current
processor. Define vmtrace_supported global variable.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmcs.c | 7 ++-
xen/common/domain.c | 2 ++
From: Michal Leszczynski
Intel Processor Trace is an architectural extension available in modern Intel
family CPUs. It allows recording the detailed trace of activity while the
processor executes the code. One might use the recorded trace to reconstruct
the code flow. It means, to find out
t; guests and ARM CoreSight, and oughtn't to explode when creating guests
> on non-Intel hardware.
>
> Thanks,
>
> ~Andrew
Thanks for your review, I'm almost done addressing all these remarks.
I've converted HVMOP to DOMCTL and splitted patches to smaller pieces.
I will send v4 soon.
Best regards,
Michał Leszczyński
and is trying
to run many domains (e.g. 20), it's much better to have 19 domains
working fine and 1 prematurely crashing because of -ENOMEM,
rather than have all 20 domains randomly crashing in runtime because
it turned out there is a shortage of memory.
Best regards,
Michał Leszczyński
CERT Polska
- 22 cze 2020 o 18:16, Jan Beulich jbeul...@suse.com napisał(a):
> On 22.06.2020 18:02, Michał Leszczyński wrote:
>> - 22 cze 2020 o 17:22, Jan Beulich jbeul...@suse.com napisał(a):
>>> On 22.06.2020 16:35, Michał Leszczyński wrote:
>>>> - 22 cze 2
- 22 cze 2020 o 20:06, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> This patch series implements an interface that Dom0 could use in order to
> enable IPT for particular vCPUs in DomU, allowing for external monitoring.
> Such
> a feature has numerous applications
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/tools/proctrace/Makefile b/tools/proctrace/Makefile
new file mode 100644
index 00..76d7387a64
--- /dev/null
+++ b/tools/proctrace/Makefile
@@ -0,0 +1,50 @@
+# Copyrigh
Allow to specify the size of per-vCPU trace buffer upon
domain creation. This is zero by default (meaning: not enabled).
Signed-off-by: Michal Leszczynski
---
docs/man/xl.cfg.5.pod.in | 10 ++
tools/golang/xenlight/helpers.gen.go | 2 ++
tools/golang/xenlight/types.gen.go
Add functions in libxc that use the new HVMOP_vmtrace interface.
Signed-off-by: Michal Leszczynski
---
tools/libxc/Makefile | 1 +
tools/libxc/include/xenctrl.h | 39 +++
tools/libxc/xc_vmtrace.c | 94 +++
3 files changed, 134
Provide an interface for privileged domains to manage
external IPT monitoring. Guest IPT state will be preserved
across vmentry/vmexit using ipt_state structure.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/hvm.c | 168 +
Check if Intel Processor Trace feature is supported by current
processor. Define hvm_ipt_supported function.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmcs.c | 7 ++-
xen/include/asm-x86/cpufeature.h| 1 +
xen/include/asm-x86/hvm/hvm.h
Define constants related to Intel Processor Trace features.
Signed-off-by: Michal Leszczynski
---
xen/include/asm-x86/msr-index.h | 37 +
1 file changed, 37 insertions(+)
diff --git a/xen/include/asm-x86/msr-index.h b/xen/include/asm-x86/msr-index.h
index
Allow to acquire large resources by allowing acquire_resource()
to process items in batches, using hypercall continuation.
Signed-off-by: Michal Leszczynski
---
xen/common/memory.c | 32 +---
1 file changed, 29 insertions(+), 3 deletions(-)
diff --git
Intel Processor Trace is an architectural extension available in modern Intel
family CPUs. It allows recording the detailed trace of activity while the
processor executes the code. One might use the recorded trace to reconstruct
the code flow. It means, to find out the executed code paths,
> +struct xen_hvm_vmtrace_op {
> +/* IN variable */
> +uint32_t version; /* HVMOP_VMTRACE_INTERFACE_VERSION */
> +uint32_t cmd;
> +/* Enable/disable external vmtrace for given domain */
> +#define HVMOP_vmtrace_ipt_enable 1
> +#define
- 22 cze 2020 o 18:25, Roger Pau Monné roger@citrix.com napisał(a):
> On Mon, Jun 22, 2020 at 06:16:57PM +0200, Jan Beulich wrote:
>> On 22.06.2020 18:02, Michał Leszczyński wrote:
>> > - 22 cze 2020 o 17:22, Jan Beulich jbeul...@suse.com napisał(a):
>> >&g
- 22 cze 2020 o 18:16, Jan Beulich jbeul...@suse.com napisał(a):
> On 22.06.2020 18:02, Michał Leszczyński wrote:
>> - 22 cze 2020 o 17:22, Jan Beulich jbeul...@suse.com napisał(a):
>>> On 22.06.2020 16:35, Michał Leszczyński wrote:
>>>> - 22 cze 2
- 22 cze 2020 o 17:22, Jan Beulich jbeul...@suse.com napisał(a):
> On 22.06.2020 16:35, Michał Leszczyński wrote:
>> - 22 cze 2020 o 15:25, Jan Beulich jbeul...@suse.com napisał(a):
>>> On 19.06.2020 01:41, Michał Leszczyński wrote:
>>>> +
>>&g
- 22 cze 2020 o 15:25, Jan Beulich jbeul...@suse.com napisał(a):
> On 19.06.2020 01:41, Michał Leszczyński wrote:
>> +
>> +domain_pause(d);
>
> Who's the intended caller of this interface? You making it a hvm-op
> suggests the guest may itself call this. But o
- 19 cze 2020 o 14:39, Jan Beulich jbeul...@suse.com napisał(a):
> On 19.06.2020 14:35, Michał Leszczyński wrote:
>> - 19 cze 2020 o 13:34, Roger Pau Monné roger@citrix.com napisał(a):
>>
>>> On Fri, Jun 19, 2020 at 01:38:00AM +0200, Michał Leszczyński wrot
- 19 cze 2020 o 1:41, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> Provide an interface for privileged domains to manage
> external IPT monitoring. Guest IPT state will be preserved
> across vmentry/vmexit using ipt_state structure.
>
> Signed-off-by: Mic
- 19 cze 2020 o 15:44, Roger Pau Monné roger@citrix.com napisał(a):
> On Fri, Jun 19, 2020 at 01:40:21AM +0200, Michał Leszczyński wrote:
>> Check if Intel Processor Trace feature is supported by current
>> processor. Define hvm_ipt_supported function.
>>
>
- 19 cze 2020 o 17:50, Jan Beulich jbeul...@suse.com napisał(a):
> On 19.06.2020 17:30, Roger Pau Monné wrote:
>> On Fri, Jun 19, 2020 at 01:41:03AM +0200, Michał Leszczyński wrote:
>>> --- a/xen/arch/x86/hvm/hvm.c
>>> +++ b/xen/arch/x86/hvm/hvm.c
>
- 19 cze 2020 o 15:44, Roger Pau Monné roger@citrix.com napisał(a):
> On Fri, Jun 19, 2020 at 01:40:21AM +0200, Michał Leszczyński wrote:
>> Check if Intel Processor Trace feature is supported by current
>> processor. Define hvm_ipt_supported function.
>>
>
- 19 cze 2020 o 14:49, Jan Beulich jbeul...@suse.com napisał(a):
> On 19.06.2020 14:10, Michał Leszczyński wrote:
>> - 19 cze 2020 o 13:58, Andrew Cooper andrew.coop...@citrix.com
>> napisał(a):
>>
>>> We do not expose the feature to gue
- 19 cze 2020 o 13:34, Roger Pau Monné roger@citrix.com napisał(a):
> On Fri, Jun 19, 2020 at 01:38:00AM +0200, Michał Leszczyński wrote:
>> Replace on-stack array allocation with heap allocation
>> in order to lift the limit of 32 items in mfn/gfn arrays
>> when cal
> CC: Paul Durrant
> CC: Michał Leszczyński
>
> Paul: For 4.14. This needs backporting to older trees as well.
>
> Michał: CC'ing, just to keep you in the loop. Xen has some dubious default
> MSR semantics which we're still in the middle of untangling in a backwards
> co
- 19 cze 2020 o 13:48, Jan Beulich jbeul...@suse.com napisał(a):
> On 19.06.2020 13:36, Michał Leszczyński wrote:
>> - 19 cze 2020 o 13:34, Roger Pau Monné roger@citrix.com napisał(a):
>>
>>> On Fri, Jun 19, 2020 at 01:38:00AM +0200, Michał Leszczyński wrot
- 19 cze 2020 o 13:34, Roger Pau Monné roger@citrix.com napisał(a):
> On Fri, Jun 19, 2020 at 01:38:00AM +0200, Michał Leszczyński wrote:
>> Replace on-stack array allocation with heap allocation
>> in order to lift the limit of 32 items in mfn/gfn arrays
>> when cal
- 19 cze 2020 o 1:41, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> Provide an interface for privileged domains to manage
> external IPT monitoring. Guest IPT state will be preserved
> across vmentry/vmexit using ipt_state structure.
>
> Signed-off-by: Mic
- 19 cze 2020 o 1:34, Michał Leszczyński michal.leszczyn...@cert.pl
napisał(a):
> Intel Processor Trace is an architectural extension available in modern Intel
> family CPUs. It allows recording the detailed trace of activity while the
> processor executes the code. One
Add an demonstration tool that uses xc_vmtrace_* calls in order
to manage external IPT monitoring for DomU.
Signed-off-by: Michal Leszczynski
---
tools/proctrace/COPYING | 339
tools/proctrace/Makefile| 50 ++
tools/proctrace/proctrace.c | 153
Add functions in libxc that use the new HVMOP_vmtrace interface.
Signed-off-by: Michal Leszczynski
---
tools/libxc/Makefile | 1 +
tools/libxc/include/xenctrl.h | 39 ++
tools/libxc/xc_vmtrace.c | 97 +++
3 files changed, 137
Allow to specify the size of per-vCPU trace buffer upon
domain creation. This is zero by default (meaning: not enabled).
Signed-off-by: Michal Leszczynski
---
tools/golang/xenlight/helpers.gen.go | 2 ++
tools/golang/xenlight/types.gen.go | 1 +
tools/libxl/libxl_types.idl | 2 ++
Provide an interface for privileged domains to manage
external IPT monitoring. Guest IPT state will be preserved
across vmentry/vmexit using ipt_state structure.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/hvm.c | 167 +
Check if Intel Processor Trace feature is supported by current
processor. Define hvm_ipt_supported function.
Signed-off-by: Michal Leszczynski
---
xen/arch/x86/hvm/vmx/vmcs.c | 4
xen/include/asm-x86/cpufeature.h| 1 +
xen/include/asm-x86/hvm/hvm.h
Define constants related to Intel Processor Trace features.
Signed-off-by: Michal Leszczynski
---
xen/include/asm-x86/msr-index.h | 37 +
1 file changed, 37 insertions(+)
diff --git a/xen/include/asm-x86/msr-index.h b/xen/include/asm-x86/msr-index.h
index
Replace on-stack array allocation with heap allocation
in order to lift the limit of 32 items in mfn/gfn arrays
when calling acquire_resource.
Signed-off-by: Michal Leszczynski
---
xen/common/memory.c | 39 +--
1 file changed, 17 insertions(+), 22
Intel Processor Trace is an architectural extension available in modern Intel
family CPUs. It allows recording the detailed trace of activity while the
processor executes the code. One might use the recorded trace to reconstruct
the code flow. It means, to find out the executed code paths,
- 16 cze 2020 o 19:23, Roger Pau Monné roger@citrix.com napisał(a):
> On Tue, Jun 16, 2020 at 05:22:06PM +0200, Michał Leszczyński wrote:
>> Provide an interface for privileged domains to manage
>> external IPT monitoring.
>>
>> Signed-off-by: Mich
- 17 cze 2020 o 18:19, Andrew Cooper andrew.coop...@citrix.com napisał(a):
> On 17/06/2020 04:02, Tamas K Lengyel wrote:
>> On Tue, Jun 16, 2020 at 2:17 PM Andrew Cooper
>> wrote:
>>> On 16/06/2020 19:47, Michał Leszczyński wrote:
>>>> - 16 cze 202
- 18 cze 2020 o 14:51, Jan Beulich jbeul...@suse.com napisał(a):
> On 18.06.2020 13:55, Roger Pau Monné wrote:
>> On Thu, Jun 18, 2020 at 01:01:39PM +0200, Michał Leszczyński wrote:
>>> It was previously stated that:
>>>
>>>> PVH or HVM domain
>>
- 18 cze 2020 o 10:52, Roger Pau Monné roger@citrix.com napisał(a):
> On Wed, Jun 17, 2020 at 08:56:57PM +0200, Michał Leszczyński wrote:
>> - 17 cze 2020 o 17:14, Andrew Cooper andrew.coop...@citrix.com
>> napisał(a):
>>
>> > On 17/06/2020 13:51, Roger
vmi/driver/xen/xen.c#L51
An essential abstraction xen_get_memory() relies on xc_map_foreign_range().
Doesn't this mean that it's not usable from PVH or HVM domains, or did I got it
all wrong?
Best regards,
Michał Leszczyński
CERT Polska
- 18 cze 2020 o 1:29, Kang, Luwei luwei.k...@intel.com napisał(a):
>> > > How does KVM deal with this, do they insert/modify trace packets on
>> > > trapped and emulated instructions by the VMM?
>> >
>> > The KVM includes instruction decoder and
>> emulator(arch/x86/kvm/emulate.c), and the
- 17 cze 2020 o 18:19, Andrew Cooper andrew.coop...@citrix.com napisał(a):
> On 17/06/2020 04:02, Tamas K Lengyel wrote:
>> On Tue, Jun 16, 2020 at 2:17 PM Andrew Cooper
>> wrote:
>>> On 16/06/2020 19:47, Michał Leszczyński wrote:
>>>> - 16 cze 202
- 17 cze 2020 o 18:27, Tamas K Lengyel tamas.k.leng...@gmail.com napisał(a):
> On Wed, Jun 17, 2020 at 10:19 AM Andrew Cooper
> wrote:
>>
>> On 17/06/2020 04:02, Tamas K Lengyel wrote:
>> > On Tue, Jun 16, 2020 at 2:17 PM Andrew Cooper
>> > wrot
- 16 cze 2020 o 19:23, Roger Pau Monné roger@citrix.com napisał(a):
> On Tue, Jun 16, 2020 at 05:22:06PM +0200, Michał Leszczyński wrote:
>> Provide an interface for privileged domains to manage
>> external IPT monitoring.
>>
>> Signed-off-by: Mich
- 17 cze 2020 o 17:14, Andrew Cooper andrew.coop...@citrix.com napisał(a):
> On 17/06/2020 13:51, Roger Pau Monné wrote:
>> On Wed, Jun 17, 2020 at 01:54:45PM +0200, Michał Leszczyński wrote:
>>> - 17 cze 2020 o 11:09, Roger Pau Monné roger@citrix.com napisał(a):
&
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