From: Jan Beulich <jbeulich@suse.com>
To: "Michał Leszczyński" <michal.leszczynski@cert.pl>
Cc: "Stefano Stabellini" <sstabellini@kernel.org>,
"Julien Grall" <julien@xen.org>, "Wei Liu" <wl@xen.org>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Ian Jackson" <ian.jackson@eu.citrix.com>,
"George Dunlap" <george.dunlap@citrix.com>,
Xen-devel <xen-devel@lists.xenproject.org>,
"Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [PATCH v1 4/7] x86/vmx: add do_vmtrace_op
Date: Thu, 18 Jun 2020 17:39:21 +0200 [thread overview]
Message-ID: <e2e873a3-6050-d4bf-f74c-ba31d7eef2f0@suse.com> (raw)
In-Reply-To: <1599209169.9756264.1592493912556.JavaMail.zimbra@cert.pl>
On 18.06.2020 17:25, Michał Leszczyński wrote:
> ----- 16 cze 2020 o 19:23, Roger Pau Monné roger.pau@citrix.com napisał(a):
>> On Tue, Jun 16, 2020 at 05:22:06PM +0200, Michał Leszczyński wrote:
>>> --- a/xen/include/public/hvm/hvm_op.h
>>> +++ b/xen/include/public/hvm/hvm_op.h
>>> @@ -382,6 +382,33 @@ struct xen_hvm_altp2m_op {
>>> typedef struct xen_hvm_altp2m_op xen_hvm_altp2m_op_t;
>>> DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_op_t);
>>>
>>> +/* HVMOP_vmtrace: Perform VM tracing related operation */
>>> +#define HVMOP_vmtrace 26
>>> +
>>> +#define HVMOP_VMTRACE_INTERFACE_VERSION 0x00000001
>>> +
>>> +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 HVMOP_vmtrace_ipt_disable 2
>>> +#define HVMOP_vmtrace_ipt_get_buf 3
>>> +#define HVMOP_vmtrace_ipt_get_offset 4
>>> + domid_t domain;
>>
>> You are missing a padding field here AFAICT.
>
>
> Could you point out what is the purpose of this padding field and what should be the size in this case? It's pretty unclear to me.
In the public interface we aim at making all padding explicit.
Also, as a general remark: Please trim your replies.
Jan
next prev parent reply other threads:[~2020-06-18 15:39 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-16 15:16 [PATCH v1 0/7] Implement support for external IPT monitoring Michał Leszczyński
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 [this message]
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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