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linux-next/arch/powerpc
Michael Ellerman 3102f7843c powerpc/kvm/book3s_hv: Use threads_per_subcore in KVM
To support split core on POWER8 we need to modify various parts of the
KVM code to use threads_per_subcore instead of threads_per_core. On
systems that do not support split core threads_per_subcore ==
threads_per_core and these changes are a nop.

We use threads_per_subcore as the value reported by KVM_CAP_PPC_SMT.
This communicates to userspace that guests can only be created with
a value of threads_per_core that is less than or equal to the current
threads_per_subcore. This ensures that guests can only be created with a
thread configuration that we are able to run given the current split
core mode.

Although threads_per_subcore can change during the life of the system,
the commit that enables that will ensure that threads_per_subcore does
not change during the life of a KVM VM.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Alexander Graf <agraf@suse.de>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-05-28 13:35:37 +10:00
..
boot powerpc/fsl: Add fsl,portid-mapping to corenet1-cf chips 2014-05-22 18:10:42 -05:00
configs powerpc/mpc85xx: Remove P1023 RDS support 2014-05-22 18:08:31 -05:00
crypto powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit 2013-03-05 16:56:26 +11:00
include powerpc: Add threads_per_subcore 2014-05-28 13:35:35 +10:00
kernel powerpc: Check cpu_thread_in_subcore() in __cpu_up() 2014-05-28 13:35:36 +10:00
kvm powerpc/kvm/book3s_hv: Use threads_per_subcore in KVM 2014-05-28 13:35:37 +10:00
lib Merge remote-tracking branch 'anton/abiv2' into next 2014-05-05 20:57:12 +10:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm powerpc/fsl-booke64: Set vmemmap_psize to 4K 2014-05-22 18:08:12 -05:00
net net: filter: add jited flag to indicate jit compiled filters 2014-03-31 00:45:08 -04:00
oprofile cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE} 2014-03-19 14:10:24 +01:00
perf powerpc/perf/hv-24x7: Catalog version number is be64, not be32 2014-04-28 16:31:50 +10:00
platforms powerpc/powernv: Make it possible to skip the IRQHAPPENED check in power7_nap() 2014-05-28 13:35:35 +10:00
sysdev powerpc/mpic: Don't init the fsl error int until after mpic init 2014-05-22 18:08:30 -05:00
xmon powerpc: Fix smp_processor_id() in preemptible splat in set_breakpoint 2014-05-20 10:54:06 +10:00
Kconfig powerpc/numa: Enable CONFIG_HAVE_MEMORYLESS_NODES 2014-05-28 13:35:34 +10:00
Kconfig.debug Merge branch 'kconfig-diet' from Dave Hansen 2013-07-04 11:25:51 -07:00
Makefile Merge branch 'merge' into next 2014-05-28 13:30:12 +10:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00