From: "Michał Leszczyński" <michal.leszczynski@cert.pl>
To: Xen-devel <xen-devel@lists.xenproject.org>
Cc: "Kevin Tian" <kevin.tian@intel.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Julien Grall" <julien@xen.org>,
"Jan Beulich" <jbeulich@suse.com>, "Wei Liu" <wl@xen.org>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Ian Jackson" <ian.jackson@eu.citrix.com>,
"George Dunlap" <george.dunlap@citrix.com>,
"Jun Nakajima" <jun.nakajima@intel.com>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [PATCH v1 0/7] Implement support for external IPT monitoring
Date: Tue, 16 Jun 2020 17:16:16 +0200 (CEST) [thread overview]
Message-ID: <1548605014.8764792.1592320576239.JavaMail.zimbra@cert.pl> (raw)
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, determine branches taken, and so forth.
The abovementioned feature is described in Intel(R) 64 and IA-32 Architectures Software Developer's Manual Volume 3C: System Programming Guide, Part 3, Chapter 36: "Intel Processor Trace."
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 like malware monitoring, fuzzing, or performance testing.
Michal Leszczynski (7):
x86/vmx: add Intel PT MSR definitions
x86/vmx: add IPT cpu feature
x86/vmx: add ipt_state as part of vCPU state
x86/vmx: add do_vmtrace_op
tools/libxc: add xc_ptbuf_* functions
tools/proctrace: add proctrace tool
x86/vmx: switch IPT MSRs on vmentry/vmexit
tools/libxc/include/xenctrl.h | 59 ++++
tools/libxc/xc_tbuf.c | 108 +++++++
tools/proctrace/COPYING | 339 ++++++++++++++++++++
tools/proctrace/Makefile | 49 +++
tools/proctrace/proctrace.c | 139 ++++++++
xen/arch/x86/hvm/hvm.c | 170 ++++++++++
xen/arch/x86/hvm/vmx/vmx.c | 52 +++
xen/include/asm-x86/cpufeature.h | 1 +
xen/include/asm-x86/hvm/hvm.h | 9 +
xen/include/asm-x86/hvm/vmx/vmcs.h | 11 +
xen/include/asm-x86/msr-index.h | 37 +++
xen/include/public/arch-x86/cpufeatureset.h | 1 +
xen/include/public/hvm/hvm_op.h | 27 ++
13 files changed, 1002 insertions(+)
create mode 100644 tools/proctrace/COPYING
create mode 100644 tools/proctrace/Makefile
create mode 100644 tools/proctrace/proctrace.c
--
2.20.1
next reply other threads:[~2020-06-16 15:17 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-16 15:16 Michał Leszczyński [this message]
2020-06-16 15:19 ` [PATCH v1 1/7] x86/vmx: add Intel PT MSR definitions Michał Leszczyński
2020-06-18 13:31 ` Jan Beulich
2020-06-16 15:20 ` [PATCH v1 2/7] x86/vmx: add IPT cpu feature Michał Leszczyński
2020-06-16 16:30 ` Roger Pau Monné
2020-06-17 11:34 ` Jan Beulich
2020-06-16 15:21 ` [PATCH v1 3/7] x86/vmx: add ipt_state as part of vCPU state Michał Leszczyński
2020-06-16 16:33 ` Roger Pau Monné
2020-06-16 15:22 ` [PATCH v1 4/7] x86/vmx: add do_vmtrace_op Michał Leszczyński
2020-06-16 17:23 ` Roger Pau Monné
2020-06-17 19:13 ` Michał Leszczyński
2020-06-18 3:20 ` Tamas K Lengyel
2020-06-18 11:01 ` Michał Leszczyński
2020-06-18 11:55 ` Roger Pau Monné
2020-06-18 12:51 ` Jan Beulich
2020-06-18 13:09 ` Michał Leszczyński
2020-06-18 13:24 ` Jan Beulich
2020-06-18 13:40 ` Roger Pau Monné
2020-06-18 8:46 ` Roger Pau Monné
2020-06-18 15:25 ` Michał Leszczyński
2020-06-18 15:39 ` Jan Beulich
2020-06-18 15:47 ` Tamas K Lengyel
2020-06-18 15:49 ` Tamas K Lengyel
2020-06-16 15:22 ` [PATCH v1 5/7] tools/libxc: add xc_ptbuf_* functions Michał Leszczyński
2020-06-16 15:23 ` [PATCH v1 6/7] tools/proctrace: add proctrace tool Michał Leszczyński
2020-06-16 15:24 ` [PATCH v1 7/7] x86/vmx: switch IPT MSRs on vmentry/vmexit Michał Leszczyński
2020-06-16 17:38 ` Roger Pau Monné
2020-06-16 17:47 ` Michał Leszczyński
2020-06-17 9:09 ` Roger Pau Monné
2020-06-17 11:54 ` Michał Leszczyński
2020-06-17 12:51 ` Roger Pau Monné
2020-06-17 15:14 ` Andrew Cooper
2020-06-17 18:56 ` Michał Leszczyński
2020-06-18 8:52 ` Roger Pau Monné
2020-06-18 11:07 ` Michał Leszczyński
2020-06-18 11:49 ` Roger Pau Monné
2020-06-17 23:30 ` Kang, Luwei
2020-06-18 10:02 ` Andrew Cooper
2020-06-18 17:38 ` Andrew Cooper
2020-06-16 18:17 ` [PATCH v1 0/7] Implement support for external IPT monitoring Andrew Cooper
2020-06-16 18:47 ` Michał Leszczyński
2020-06-16 20:16 ` Andrew Cooper
2020-06-17 3:02 ` Tamas K Lengyel
2020-06-17 16:19 ` Andrew Cooper
2020-06-17 16:27 ` Tamas K Lengyel
2020-06-17 17:23 ` Andrew Cooper
2020-06-17 19:31 ` Tamas K Lengyel
2020-06-17 19:30 ` Michał Leszczyński
2020-06-17 20:20 ` Michał Leszczyński
2020-06-18 8:25 ` Roger Pau Monné
2020-06-18 14:59 ` Michał Leszczyński
2020-06-17 1:35 ` Tian, Kevin
2020-06-17 6:45 ` Kang, Luwei
2020-06-17 9:21 ` Roger Pau Monné
2020-06-17 12:37 ` Kang, Luwei
2020-06-17 12:53 ` Roger Pau Monné
2020-06-17 23:29 ` Kang, Luwei
2020-06-18 0:56 ` Michał Leszczyński
2020-06-18 7:00 ` Roger Pau Monné
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