Michael Kelley <mikel...@microsoft.com> writes: > This patch series moves Hyper-V clock/timer code to a separate Hyper-V > clocksource driver. Previously, Hyper-V clock/timer code and data > structures were mixed in with other Hyper-V code in the ISA independent > drivers/hv code as well as in arch dependent code. The new Hyper-V > clocksource driver is ISA independent, with a just few dependencies on > arch specific functions. The patch series does not change any behavior > or functionality -- it only reorganizes the existing code and fixes up > the linkages. A few places outside of Hyper-V code are fixed up to use > the new #include file structure. > > This restructuring is in response to Marc Zyngier's review comments > on supporting Hyper-V running on ARM64, and is a good idea in general. > It increases the amount of code shared between the x86 and ARM64 > architectures, and reduces the size of the new code for supporting > Hyper-V on ARM64. A new version of the Hyper-V on ARM64 patches will > follow once this clocksource restructuring is accepted. > > The code is currently diff'ed against Linux 5.0. I'll rebase > to linux-next once 5.1-rc1 is available. > > Changes in v2: > * Revised commit short descriptions so the distinction between > the two patches is clearer [GregKH] > * Renamed new clocksource driver files and functions to use > existing "timer" and "stimer" names instead of introducing > "syntimer". [Vitaly Kuznetsov] > * Introduced CONFIG_HYPER_TIMER to fix build problem when > CONFIG_HYPERV=m [Vitaly Kuznetsov]
Actually, it is "CONFIG_HYPERV_TIMER" but the typo appears only in this blurb :-) > * Added "Suggested-by: Marc Zyngier" > > Michael Kelley (2): > Drivers: hv: Create Hyper-V clocksource driver from existing > clockevents code > Drivers: hv: Move Hyper-V clocksource code to new clocksource driver Thanks for fixing v1 issues! Reviewed-by: Vitaly Kuznetsov <vkuzn...@redhat.com> > > MAINTAINERS | 2 + > arch/x86/entry/vdso/vclock_gettime.c | 1 + > arch/x86/entry/vdso/vma.c | 2 +- > arch/x86/hyperv/hv_init.c | 91 +--------- > arch/x86/include/asm/hyperv-tlfs.h | 6 + > arch/x86/include/asm/mshyperv.h | 80 ++------- > arch/x86/kernel/cpu/mshyperv.c | 2 + > arch/x86/kvm/x86.c | 1 + > drivers/clocksource/Makefile | 1 + > drivers/clocksource/hyperv_timer.c | 328 > +++++++++++++++++++++++++++++++++++ > drivers/hv/Kconfig | 3 + > drivers/hv/hv.c | 154 ---------------- > drivers/hv/hyperv_vmbus.h | 3 - > drivers/hv/vmbus_drv.c | 39 +++-- > include/clocksource/hyperv_timer.h | 104 +++++++++++ > 15 files changed, 485 insertions(+), 332 deletions(-) > create mode 100644 drivers/clocksource/hyperv_timer.c > create mode 100644 include/clocksource/hyperv_timer.h -- Vitaly
