linux-kernel - [PATCH v2 0/3] x86/xen: pvclock vdso support

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Date:   Fri, 22 Sep 2017 17:25:27 +0100
From:   Joao Martins <joao.m.martins@...cle.com>
To:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org
Cc:     Joao Martins <joao.m.martins@...cle.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Andy Lutomirski <luto@...capital.net>
Subject: [PATCH v2 0/3] x86/xen: pvclock vdso support

Hey,

Sorry for the huge delay in following up this series.

This take 2 for vdso for Xen. PVCLOCK_TSC_STABLE_BIT can be set starting Xen
 4.8 which is required for vdso time related calls. In order to have it on, you
need to have the hypervisor clocksource be TSC e.g. with the following boot
params "clocksource=tsc tsc=stable:socket".

Series is structured as following:

Patch 1 streamlines pvti page get/set in pvclock for both of its users
Patch 2 registers the pvti page on Xen and sets it in pvclock accordingly
Patch 3 adds a file to KVM/Xen maintainers for tracking pvclock ABI changes.

Changelog since v1 is included in individual patches.

Any comments/suggestions are welcome.

Thanks,
Joao

Joao Martins (3):
  x86/pvclock: add setter for pvclock_pvti_cpu0_va
  x86/xen/time: setup vcpu 0 time info page
  MAINTAINERS: xen, kvm: track pvclock-abi.h changes

 MAINTAINERS                    |   2 +
 arch/x86/include/asm/pvclock.h |  19 ++++----
 arch/x86/kernel/kvmclock.c     |   7 +--
 arch/x86/kernel/pvclock.c      |  14 ++++++
 arch/x86/xen/suspend.c         |   4 ++
 arch/x86/xen/time.c            | 100 +++++++++++++++++++++++++++++++++++++++++
 arch/x86/xen/xen-ops.h         |   2 +
 include/xen/interface/vcpu.h   |  28 ++++++++++++
 8 files changed, 161 insertions(+), 15 deletions(-)

-- 
2.11.0