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From: Greg KH <greg@kroah.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: stable@vger.kernel.org, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH v4.4 backport 10/16] powerpc/64s: Convert slb_miss_common to use RFI_TO_USER/KERNEL
Date: Sun, 4 Feb 2018 11:58:45 +0100	[thread overview]
Message-ID: <20180204105845.GG7519@kroah.com> (raw)
In-Reply-To: <20180204050010.13669-11-mpe@ellerman.id.au>

On Sun, Feb 04, 2018 at 04:00:04PM +1100, Michael Ellerman wrote:
> From: Nicholas Piggin <npiggin@gmail.com>
> 
> commit c7305645eb0c1621351cfc104038831ae87c0053 upstream.
> 
> In the SLB miss handler we may be returning to user or kernel. We need
> to add a check early on and save the result in the cr4 register, and
> then we bifurcate the return path based on that.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> [mpe: Backport to 4.4 based on patch from Balbir]
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> ---
>  arch/powerpc/kernel/exceptions-64s.S | 22 ++++++++++++++++++++--
>  1 file changed, 20 insertions(+), 2 deletions(-)

also applied to 4.9.y

  reply	other threads:[~2018-02-04 11:38 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-04  4:59 [PATCH v4.4 backport 00/16] powerpc stable backports for v4.4 Michael Ellerman
2018-02-04  4:59 ` [PATCH v4.4 backport 01/16] powerpc/bpf/jit: Disable classic BPF JIT on ppc64le Michael Ellerman
2018-02-04  4:59 ` [PATCH v4.4 backport 02/16] powerpc/64: Fix flush_(d|i)cache_range() called from modules Michael Ellerman
2018-02-04  4:59 ` [PATCH v4.4 backport 03/16] powerpc: Fix VSX enabling/flushing to also test MSR_FP and MSR_VEC Michael Ellerman
2018-02-04  4:59 ` [PATCH v4.4 backport 04/16] powerpc: Simplify module TOC handling Michael Ellerman
2018-02-04  4:59 ` [PATCH v4.4 backport 05/16] powerpc/pseries: Add H_GET_CPU_CHARACTERISTICS flags & wrapper Michael Ellerman
2018-02-04 10:52   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 06/16] powerpc/64: Add macros for annotating the destination of rfid/hrfid Michael Ellerman
2018-02-04 10:53   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 07/16] powerpc/64s: Simple RFI macro conversions Michael Ellerman
2018-02-04 10:55   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 08/16] powerpc/64: Convert fast_exception_return to use RFI_TO_USER/KERNEL Michael Ellerman
2018-02-04  5:00 ` [PATCH v4.4 backport 09/16] powerpc/64: Convert the syscall exit path " Michael Ellerman
2018-02-04  5:00 ` [PATCH v4.4 backport 10/16] powerpc/64s: Convert slb_miss_common " Michael Ellerman
2018-02-04 10:58   ` Greg KH [this message]
2018-02-04  5:00 ` [PATCH v4.4 backport 11/16] powerpc/64s: Add support for RFI flush of L1-D cache Michael Ellerman
2018-02-04 11:00   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 12/16] powerpc/64s: Support disabling RFI flush with no_rfi_flush and nopti Michael Ellerman
2018-02-04  5:00 ` [PATCH v4.4 backport 13/16] powerpc/pseries: Query hypervisor for RFI flush settings Michael Ellerman
2018-02-04  5:00 ` [PATCH v4.4 backport 14/16] powerpc/powernv: Check device-tree " Michael Ellerman
2018-02-04 11:03   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 15/16] powerpc/64s: Wire up cpu_show_meltdown() Michael Ellerman
2018-02-04 11:06   ` Greg KH
2018-02-04  5:00 ` [PATCH v4.4 backport 16/16] powerpc/64s: Allow control of RFI flush via debugfs Michael Ellerman
2018-02-04 11:07   ` Greg KH
2018-02-04 11:07 ` [PATCH v4.4 backport 00/16] powerpc stable backports for v4.4 Greg KH

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