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

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Message-Id: <1451339557-24473-1-git-send-email-joao.m.martins@oracle.com>
Date:	Mon, 28 Dec 2015 21:52:34 +0000
From:	Joao Martins <joao.m.martins@...cle.com>
To:	linux-kernel@...r.kernel.org, xen-devel@...ts.xen.org
Cc:	Joao Martins <joao.m.martins@...cle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: [PATCH RFC 0/3] x86/xen: pvclock vdso support

Hey!

This series proposes support for pvclock vdso under Xen: Patch 1 adds
setting cpu 0 pvti page; Patch 2 registers the pvti page with Xen and sets
it accordingly in pvclock and Patch 3 adds a Kconfig option since Xen
doesn't yet support the PVCLOCK_TSC_STABLE_BIT flag. Though its support
will probably be discussed in another RFC I sent[0].

Any comments or suggestions are welcome!

Thanks,
Joao

[0] http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02835.html

Joao Martins (3):
  x86/pvclock: add setter for pvclock_pvti_cpu0_va
  x86/xen/time: setup vcpu 0 time info page
  xen/Kconfig: add XEN_TIME_VSYSCALL option

 arch/x86/include/asm/pvclock.h | 22 ++++++++------
 arch/x86/kernel/kvmclock.c     |  6 +---
 arch/x86/kernel/pvclock.c      | 11 +++++++
 arch/x86/xen/Kconfig           |  5 ++++
 arch/x86/xen/time.c            | 66 ++++++++++++++++++++++++++++++++++++++++++
 include/xen/interface/vcpu.h   | 28 ++++++++++++++++++
 6 files changed, 124 insertions(+), 14 deletions(-)

-- 
2.1.4

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