From: Jianyong Wu <jianyong.wu@arm.com>
To: netdev@vger.kernel.org, yangbo.lu@nxp.com,
john.stultz@linaro.org, tglx@linutronix.de, pbonzini@redhat.com,
sean.j.christopherson@intel.com, maz@kernel.org,
richardcochran@gmail.com, Mark.Rutland@arm.com,
Will.Deacon@arm.com, suzuki.poulose@arm.com
Cc: justin.he@arm.com, kvm@vger.kernel.org, Steve.Capper@arm.com,
jianyong.wu@arm.com, linux-kernel@vger.kernel.org,
Kaly.Xin@arm.com, nd@arm.com,
linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v3 0/6] Enable ptp_kvm for arm64
Date: Wed, 18 Sep 2019 04:07:10 -0400 [thread overview]
Message-ID: <20190918080716.64242-1-jianyong.wu@arm.com> (raw)
kvm ptp targets to provide high precision time sync between guest
and host in virtualization environment. This patch enable kvm ptp
for arm64.
This patch set base on [1][2][3]
change log:
from v2 to v3:
(1) fix some issues in commit log.
(2) add some receivers in send list.
from v1 to v2:
(1) move arch-specific code from arch/ to driver/ptp/
(2) offer mechanism to inform userspace if ptp_kvm service is
available.
(3) separate ptp_kvm code for arm64 into hypervisor part and
guest part.
(4) add API to expose monotonic clock and counter value.
(5) refine code: remove no necessary part and reconsitution.
[1]https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/
commit/?h=kvm/hvc&id=125ea89e4a21e2fc5235410f966a996a1a7148bf
[2]https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/
commit/?h=kvm/hvc&id=464f5a1741e5959c3e4d2be1966ae0093b4dce06
[3]https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/
commit/?h=kvm/hvc&id=6597490e005d0eeca8ed8c1c1d7b4318ee014681
Jianyong Wu (6):
psci: Export psci_ops.conduit symbol as modules will use it.
ptp: Reorganize ptp_kvm modules to make it arch-independent.
timekeeping: Expose API allowing retrival of current clocksource and
counter value
psci: Add hvc call service for ptp_kvm.
ptp: arm64: Enable ptp_kvm for arm64
kvm: arm64: Add capability check extension for ptp_kvm
drivers/firmware/psci/psci.c | 6 ++
drivers/ptp/Kconfig | 2 +-
drivers/ptp/Makefile | 1 +
drivers/ptp/{ptp_kvm.c => kvm_ptp.c} | 77 ++++++------------------
drivers/ptp/ptp_kvm_arm64.c | 82 ++++++++++++++++++++++++++
drivers/ptp/ptp_kvm_x86.c | 87 ++++++++++++++++++++++++++++
include/asm-generic/ptp_kvm.h | 12 ++++
include/linux/arm-smccc.h | 14 ++++-
include/linux/psci.h | 1 +
include/linux/timekeeping.h | 3 +
include/uapi/linux/kvm.h | 1 +
kernel/time/timekeeping.c | 13 +++++
virt/kvm/arm/arm.c | 1 +
virt/kvm/arm/psci.c | 17 ++++++
14 files changed, 256 insertions(+), 61 deletions(-)
rename drivers/ptp/{ptp_kvm.c => kvm_ptp.c} (63%)
create mode 100644 drivers/ptp/ptp_kvm_arm64.c
create mode 100644 drivers/ptp/ptp_kvm_x86.c
create mode 100644 include/asm-generic/ptp_kvm.h
--
2.17.1
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next reply other threads:[~2019-09-18 8:07 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-18 8:07 Jianyong Wu [this message]
2019-09-18 8:07 ` [RFC PATCH v3 1/6] psci: Export psci_ops.conduit symbol as modules will use it Jianyong Wu
2019-09-18 8:07 ` [RFC PATCH v3 2/6] ptp: Reorganize ptp_kvm modules to make it arch-independent Jianyong Wu
2019-09-18 8:07 ` [RFC PATCH v3 3/6] timekeeping: Expose API allowing retrival of current clocksource and counter value Jianyong Wu
2019-09-18 8:29 ` Paolo Bonzini
2019-09-18 8:07 ` [RFC PATCH v3 4/6] psci: Add hvc call service for ptp_kvm Jianyong Wu
2019-09-18 8:25 ` Paolo Bonzini
2019-09-18 9:57 ` Jianyong Wu (Arm Technology China)
2019-09-18 10:23 ` Paolo Bonzini
2019-09-19 9:46 ` Jianyong Wu (Arm Technology China)
2019-09-19 11:07 ` Paolo Bonzini
2019-09-19 11:39 ` Marc Zyngier
2019-09-19 12:13 ` Paolo Bonzini
2019-09-23 3:19 ` Jianyong Wu (Arm Technology China)
2019-10-09 5:21 ` Jianyong Wu (Arm Technology China)
2019-10-09 6:36 ` Paolo Bonzini
2019-10-09 8:18 ` Jianyong Wu (Arm Technology China)
2019-10-09 9:13 ` Paolo Bonzini
2019-10-09 16:05 ` John Stultz
2019-10-09 16:05 ` John Stultz
2019-10-09 20:56 ` Paolo Bonzini
2019-10-14 5:50 ` Jianyong Wu (Arm Technology China)
2019-10-14 6:58 ` Paolo Bonzini
2019-09-23 4:57 ` Jianyong Wu (Arm Technology China)
2019-09-24 14:20 ` Paolo Bonzini
2019-09-25 10:27 ` Jianyong Wu (Arm Technology China)
2019-09-18 8:07 ` [RFC PATCH v3 5/6] ptp: arm64: Enable ptp_kvm for arm64 Jianyong Wu
2019-09-18 8:07 ` [RFC PATCH v3 6/6] kvm: arm64: Add capability check extension for ptp_kvm Jianyong Wu
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