On Mon, Feb 17, 2014 at 12:25:42PM +0000, Stefano Stabellini wrote: > On Thu, 9 Jan 2014, Stefano Stabellini wrote: > > Introduce CONFIG_PARAVIRT and PARAVIRT_TIME_ACCOUNTING on ARM64. > > Necessary duplication of paravirt.h and paravirt.c with ARM. > > > > The only paravirt interface supported is pv_time_ops.steal_clock, so no > > runtime pvops patching needed. > > > > This allows us to make use of steal_account_process_tick for stolen > > ticks accounting. > > > > Signed-off-by: Stefano Stabellini <stefano.stabell...@eu.citrix.com> > > CC: will.dea...@arm.com > > CC: n...@linaro.org > > CC: marc.zyng...@arm.com > > CC: c...@codeaurora.org > > CC: a...@arndb.de > > CC: o...@lixom.net > > CC: catalin.mari...@arm.com > > Catalin, Will, are you happy with this patch for 3.15?
It's pretty small and looks fine to me. However, I would like someone with more virtualisation experience than me to ack it (e.g. Marc Z). Some nitpicks: > > +config PARAVIRT > > + bool "Enable paravirtualization code" > > + ---help--- > > + This changes the kernel so it can modify itself when it is run > > + under a hypervisor, potentially improving performance significantly > > + over full virtualization. > > + > > +config PARAVIRT_TIME_ACCOUNTING > > + bool "Paravirtual steal time accounting" > > + select PARAVIRT > > + default n > > + ---help--- For consistency with this file, just use "help" rather than "---help---". > > --- /dev/null > > +++ b/arch/arm64/include/asm/paravirt.h > > @@ -0,0 +1,20 @@ > > +#ifndef _ASM_ARM64_PARAVIRT_H > > +#define _ASM_ARM64_PARAVIRT_H __ASM_PARAVIRT_H for consistency. -- Catalin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
