Re: [RFC PATCH 06/10] KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8

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On 06.09.2013, at 05:55, Paul Mackerras <paulus@xxxxxxxxx> wrote:

> This allows us to select architecture 2.05 (POWER6) or 2.06 (POWER7)
> compatibility modes on a POWER8 processor.
> 
> Signed-off-by: Paul Mackerras <paulus@xxxxxxxxx>
> ---
> arch/powerpc/include/asm/reg.h |  2 ++
> arch/powerpc/kvm/book3s_hv.c   | 16 +++++++++++++++-
> 2 files changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
> index 4ca8b85..483e0a2 100644
> --- a/arch/powerpc/include/asm/reg.h
> +++ b/arch/powerpc/include/asm/reg.h
> @@ -315,6 +315,8 @@
> #define SPRN_PCR	0x152	/* Processor compatibility register */
> #define   PCR_VEC_DIS	(1ul << (63-0))	/* Vec. disable (pre POWER8) */
> #define   PCR_VSX_DIS	(1ul << (63-1))	/* VSX disable (pre POWER8) */
> +#define   PCR_TM_DIS	(1ul << (63-2))	/* Trans. memory disable (POWER8) */

Is this going to get used?


Alex

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