From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: tim@xen.org, kevin.tian@intel.com, keir@xen.org,
suravee.suthikulpanit@amd.com, andrew.cooper3@citrix.com,
eddie.dong@intel.com, xen-devel@lists.xen.org,
Aravind.Gopalakrishnan@amd.com, jun.nakajima@intel.com
Subject: Re: [PATCH v10 09/20] x86/VPMU: Add public xenpmu.h
Date: Wed, 10 Sep 2014 13:23:23 -0400 [thread overview]
Message-ID: <5410890B.9010900@oracle.com> (raw)
In-Reply-To: <54108045020000780003362D@mail.emea.novell.com>
On 09/10/2014 10:45 AM, Jan Beulich wrote:
>>>> On 04.09.14 at 05:41, <boris.ostrovsky@oracle.com> wrote:
>> +struct xen_pmu_arch {
>> + union {
>> + struct cpu_user_regs regs;
>> + uint8_t pad[256];
>> + } r;
> Can you remind me again what you need the union and padding for
> here?
This structure is laid out in a shared page with a (possibly 32-bit)
guest who need to access fields that follow this union.
-boris
next prev parent reply other threads:[~2014-09-10 17:23 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 3:41 [PATCH v10 00/20] x86/PMU: Xen PMU PV(H) support Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 01/20] common/symbols: Export hypervisor symbols to privileged guest Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 02/20] x86/VPMU: Manage VPMU_CONTEXT_SAVE flag in vpmu_save_force() Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 03/20] x86/VPMU: Set MSR bitmaps only for HVM/PVH guests Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 04/20] x86/VPMU: Make vpmu macros a bit more efficient Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 05/20] intel/VPMU: Clean up Intel VPMU code Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 06/20] vmx: Merge MSR management routines Boris Ostrovsky
2014-09-08 16:07 ` Jan Beulich
2014-09-08 17:28 ` Boris Ostrovsky
2014-09-09 9:11 ` Jan Beulich
2014-09-04 3:41 ` [PATCH v10 07/20] x86/VPMU: Handle APIC_LVTPC accesses Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 08/20] intel/VPMU: MSR_CORE_PERF_GLOBAL_CTRL should be initialized to zero Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 09/20] x86/VPMU: Add public xenpmu.h Boris Ostrovsky
2014-09-10 14:45 ` Jan Beulich
2014-09-10 17:23 ` Boris Ostrovsky [this message]
2014-09-11 6:39 ` Jan Beulich
2014-09-11 13:54 ` Boris Ostrovsky
2014-09-11 14:55 ` Jan Beulich
2014-09-11 15:26 ` Boris Ostrovsky
2014-09-11 15:59 ` Jan Beulich
2014-09-11 16:51 ` Boris Ostrovsky
2014-09-12 6:50 ` Jan Beulich
2014-09-12 14:21 ` Boris Ostrovsky
2014-09-12 14:38 ` Jan Beulich
2014-09-12 15:18 ` Boris Ostrovsky
2014-09-15 11:56 ` Konrad Rzeszutek Wilk
2014-09-15 13:06 ` Jan Beulich
2014-09-16 1:00 ` Boris Ostrovsky
2014-09-16 0:49 ` Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 10/20] x86/VPMU: Make vpmu not HVM-specific Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 11/20] x86/VPMU: Interface for setting PMU mode and flags Boris Ostrovsky
2014-09-10 15:05 ` Jan Beulich
2014-09-10 17:37 ` Boris Ostrovsky
2014-09-11 6:44 ` Jan Beulich
2014-09-11 14:12 ` Boris Ostrovsky
2014-09-11 14:59 ` Jan Beulich
2014-09-11 16:10 ` Boris Ostrovsky
2014-09-12 6:49 ` Jan Beulich
2014-09-12 14:12 ` Boris Ostrovsky
2014-09-12 14:39 ` Jan Beulich
2014-09-12 15:03 ` Boris Ostrovsky
2014-09-12 15:30 ` Jan Beulich
2014-09-12 15:54 ` Boris Ostrovsky
2014-09-12 16:05 ` Jan Beulich
2014-09-12 11:41 ` Dietmar Hahn
2014-09-12 14:25 ` Boris Ostrovsky
2014-09-15 13:35 ` Dietmar Hahn
2014-09-18 4:11 ` Tian, Kevin
2014-09-18 21:50 ` Boris Ostrovsky
2014-09-19 6:51 ` Jan Beulich
2014-09-19 12:42 ` Boris Ostrovsky
2014-09-19 13:28 ` Jan Beulich
2014-09-22 22:29 ` Tian, Kevin
2014-09-22 22:32 ` Tian, Kevin
2014-09-22 22:48 ` Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 12/20] x86/VPMU: Initialize PMU for PV(H) guests Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 13/20] x86/VPMU: When handling MSR accesses, leave fault injection to callers Boris Ostrovsky
2014-09-18 5:01 ` Tian, Kevin
2014-09-04 3:41 ` [PATCH v10 14/20] x86/VPMU: Add support for PMU register handling on PV guests Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 15/20] x86/VPMU: Handle PMU interrupts for " Boris Ostrovsky
2014-09-10 15:30 ` Jan Beulich
2014-09-04 3:41 ` [PATCH v10 16/20] x86/VPMU: Merge vpmu_rdmsr and vpmu_wrmsr Boris Ostrovsky
2014-09-10 15:33 ` Jan Beulich
2014-09-18 4:16 ` Tian, Kevin
2014-09-04 3:41 ` [PATCH v10 17/20] x86/VPMU: Add privileged PMU mode Boris Ostrovsky
2014-09-10 15:39 ` Jan Beulich
2014-09-04 3:41 ` [PATCH v10 18/20] x86/VPMU: Save VPMU state for PV guests during context switch Boris Ostrovsky
2014-09-10 15:44 ` Jan Beulich
2014-09-04 3:41 ` [PATCH v10 19/20] x86/VPMU: NMI-based VPMU support Boris Ostrovsky
2014-09-04 3:41 ` [PATCH v10 20/20] x86/VPMU: Move VPMU files up from hvm/ directory Boris Ostrovsky
2014-09-10 15:48 ` Jan Beulich
2014-09-10 15:54 ` [PATCH v10 00/20] x86/PMU: Xen PMU PV(H) support Jan Beulich
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5410890B.9010900@oracle.com \
--to=boris.ostrovsky@oracle.com \
--cc=Aravind.Gopalakrishnan@amd.com \
--cc=JBeulich@suse.com \
--cc=andrew.cooper3@citrix.com \
--cc=eddie.dong@intel.com \
--cc=jun.nakajima@intel.com \
--cc=keir@xen.org \
--cc=kevin.tian@intel.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=tim@xen.org \
--cc=xen-devel@lists.xen.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).