From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: kvm-ppc@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [v3, 3/4] powerpc/64s: idle POWER9 can execute stop in virtual mode
Date: Thu, 31 Aug 2017 21:36:19 +1000 (AEST) [thread overview]
Message-ID: <3xjgLX3Dgkz9sQl@ozlabs.org> (raw)
In-Reply-To: <20170825043036.18236-4-npiggin@gmail.com>
On Fri, 2017-08-25 at 04:30:35 UTC, Nicholas Piggin wrote:
> The hardware can execute stop in any context, and KVM does not
> require real mode because siblings do not share MMU state. This
> saves a switch to real-mode when going idle.
>
> Acked-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/72b0d51d973beab5a06c97279b61a0
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: kvm-ppc@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [v3,3/4] powerpc/64s: idle POWER9 can execute stop in virtual mode
Date: Thu, 31 Aug 2017 11:36:19 +0000 [thread overview]
Message-ID: <3xjgLX3Dgkz9sQl@ozlabs.org> (raw)
In-Reply-To: <20170825043036.18236-4-npiggin@gmail.com>
On Fri, 2017-08-25 at 04:30:35 UTC, Nicholas Piggin wrote:
> The hardware can execute stop in any context, and KVM does not
> require real mode because siblings do not share MMU state. This
> saves a switch to real-mode when going idle.
>
> Acked-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/72b0d51d973beab5a06c97279b61a0
cheers
next prev parent reply other threads:[~2017-08-31 11:36 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 4:30 [PATCH v3 0/4] powerpc/64s: idle POWER9 stop improvements Nicholas Piggin
2017-08-25 4:30 ` Nicholas Piggin
2017-08-25 4:30 ` [PATCH v3 1/4] KVM: PPC: Book3S HV: POWER9 does not require secondary thread management Nicholas Piggin
2017-08-25 4:30 ` Nicholas Piggin
2017-08-28 11:49 ` Michael Ellerman
2017-08-28 11:49 ` Michael Ellerman
2017-08-29 0:13 ` Paul Mackerras
2017-08-29 0:13 ` Paul Mackerras
2017-08-31 11:36 ` [v3, " Michael Ellerman
2017-08-31 11:36 ` Michael Ellerman
2017-08-25 4:30 ` [PATCH v3 2/4] powerpc/64s: idle POWER9 can execute stop without a sync sequence Nicholas Piggin
2017-08-25 4:30 ` Nicholas Piggin
2017-08-29 0:11 ` Paul Mackerras
2017-08-29 0:11 ` Paul Mackerras
2017-08-29 10:30 ` Michael Ellerman
2017-08-29 10:30 ` Michael Ellerman
2017-08-31 11:36 ` [v3, " Michael Ellerman
2017-08-31 11:36 ` Michael Ellerman
2017-08-25 4:30 ` [PATCH v3 3/4] powerpc/64s: idle POWER9 can execute stop in virtual mode Nicholas Piggin
2017-08-25 4:30 ` Nicholas Piggin
2017-08-29 0:14 ` Paul Mackerras
2017-08-29 0:14 ` Paul Mackerras
2017-08-31 11:36 ` Michael Ellerman [this message]
2017-08-31 11:36 ` [v3,3/4] " Michael Ellerman
2017-08-25 4:30 ` [PATCH v3 4/4] powerpc/64s: idle ESL=0 stop can avoid MSR and save/restore overhead Nicholas Piggin
2017-08-25 4:30 ` Nicholas Piggin
2017-08-29 0:20 ` Paul Mackerras
2017-08-29 0:20 ` Paul Mackerras
2017-08-29 1:39 ` Nicholas Piggin
2017-08-29 1:39 ` Nicholas Piggin
2017-08-30 11:25 ` Michael Ellerman
2017-08-30 11:25 ` Michael Ellerman
2017-08-30 12:10 ` Nicholas Piggin
2017-08-30 12:10 ` Nicholas Piggin
2017-09-01 9:39 ` Michael Ellerman
2017-09-01 9:39 ` Michael Ellerman
2017-09-20 13:56 ` Nicholas Piggin
2017-09-20 13:56 ` Nicholas Piggin
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