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] [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 (3): Export psci_ops.conduit symbol as modules will use it. reorganize ptp_kvm modules to make it arch-independent. Enable ptp_kvm for arm64 arch/arm64/include/asm/arch_timer.h | 3 + arch/arm64/kvm/arch_ptp_kvm.c | 76 +++++++++++++++++++++++ arch/x86/kvm/arch_ptp_kvm.c | 92 ++++++++++++++++++++++++++++ drivers/clocksource/arm_arch_timer.c | 6 +- drivers/firmware/psci/psci.c | 6 ++ drivers/ptp/Kconfig | 2 +- drivers/ptp/Makefile | 1 + drivers/ptp/{ptp_kvm.c => kvm_ptp.c} | 77 ++++++----------------- include/asm-generic/ptp_kvm.h | 12 ++++ include/linux/arm-smccc.h | 16 ++++- include/linux/psci.h | 1 + virt/kvm/arm/psci.c | 17 +++++ 12 files changed, 246 insertions(+), 63 deletions(-) create mode 100644 arch/arm64/kvm/arch_ptp_kvm.c create mode 100644 arch/x86/kvm/arch_ptp_kvm.c rename drivers/ptp/{ptp_kvm.c => kvm_ptp.c} (63%) create mode 100644 include/asm-generic/ptp_kvm.h -- 2.17.1
