From: Peter Zijlstra <peterz@infradead.org>
To: Wei Wang <wei.w.wang@intel.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
pbonzini@redhat.com, ak@linux.intel.com, kan.liang@intel.com,
mingo@redhat.com, rkrcmar@redhat.com, like.xu@intel.com,
jannh@google.com, arei.gonglei@huawei.com
Subject: Re: [PATCH v3 1/5] perf/x86: add a function to get the lbr stack
Date: Thu, 20 Sep 2018 14:07:09 +0200 [thread overview]
Message-ID: <20180920120709.GQ24124@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <1537437959-8751-2-git-send-email-wei.w.wang@intel.com>
On Thu, Sep 20, 2018 at 06:05:55PM +0800, Wei Wang wrote:
> The LBR stack MSRs are architecturally specific. The perf subsystem has
> already assigned the abstracted MSR values based on the CPU architecture.
>
> This patch enables a caller outside the perf subsystem to get the LBR
> stack info. This is useful for hyperviosrs to prepare the lbr feature
> for the guest.
>
> Signed-off-by: Like Xu <like.xu@intel.com>
> Signed-off-by: Wei Wang <wei.w.wang@intel.com>
Also, that SoB chain is broken. Since you're the author (per From), your
SoB should be first, also since you're the one sending it, your SoB
should also be last.
Nowhere did Like Xu handle the patch so he shouldn't be having a SoB at
all.
next prev parent reply other threads:[~2018-09-20 12:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 10:05 [PATCH v3 0/5] Guest LBR Enabling Wei Wang
2018-09-20 10:05 ` [PATCH v3 1/5] perf/x86: add a function to get the lbr stack Wei Wang
2018-09-20 12:05 ` Peter Zijlstra
2018-09-20 12:07 ` Peter Zijlstra [this message]
2018-09-20 10:05 ` [PATCH v3 2/5] KVM/x86: KVM_CAP_X86_GUEST_LBR Wei Wang
2018-09-20 10:05 ` [PATCH v3 3/5] KVM/x86: expose MSR_IA32_PERF_CAPABILITIES to the guest Wei Wang
2018-09-20 12:38 ` Wei Wang
2018-09-20 10:05 ` [PATCH v3 4/5] KVM/x86/vPMU: Add APIs to support host save/restore the guest lbr stack Wei Wang
2018-09-20 12:17 ` Peter Zijlstra
2018-09-20 12:32 ` Peter Zijlstra
2018-09-27 13:45 ` Wang, Wei W
2018-09-20 15:30 ` Andi Kleen
2018-09-20 16:24 ` Peter Zijlstra
2018-09-27 10:10 ` Wang, Wei W
2018-09-27 10:05 ` Wang, Wei W
2018-09-20 10:05 ` [PATCH v3 5/5] KVM/x86/lbr: lazy save " Wei Wang
2018-09-20 12:07 ` Gonglei (Arei)
2018-09-27 14:11 ` Wang, Wei W
2018-09-20 12:37 ` Peter Zijlstra
2018-09-20 12:58 ` Wei Wang
2018-09-20 12:57 ` Peter Zijlstra
2018-09-20 11:34 ` [PATCH v3 0/5] Guest LBR Enabling Gonglei (Arei)
2018-09-20 12:36 ` Wei Wang
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=20180920120709.GQ24124@hirez.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=ak@linux.intel.com \
--cc=arei.gonglei@huawei.com \
--cc=jannh@google.com \
--cc=kan.liang@intel.com \
--cc=kvm@vger.kernel.org \
--cc=like.xu@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=pbonzini@redhat.com \
--cc=rkrcmar@redhat.com \
--cc=wei.w.wang@intel.com \
/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