On Sun, Feb 04, 2018 at 04:00:08PM +1100, Michael Ellerman wrote:
> From: Oliver O'Halloran
>
> commit 6e032b350cd1fdb830f18f8320ef0e13b4e24094 upstream.
>
> New device-tree properties are available which tell the hypervisor
> settings related to the RFI flush. Use them to determine the
> approp
On Sun, Feb 04, 2018 at 04:00:09PM +1100, Michael Ellerman wrote:
> commit fd6e440f20b1a4304553775fc55938848ff617c9 upstream.
>
> The recent commit 87590ce6e373 ("sysfs/cpu: Add vulnerability folder")
> added a generic folder and set of files for reporting information on
> CPU vulnerabilities. One
On Sun, Feb 04, 2018 at 04:00:04PM +1100, Michael Ellerman wrote:
> From: Nicholas Piggin
>
> 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, an
On Sun, Feb 04, 2018 at 04:00:00PM +1100, Michael Ellerman wrote:
> From: Nicholas Piggin
>
> commit 50e51c13b3822d14ff6df4279423e4b7b2269bc3 upstream.
>
> The rfid/hrfid ((Hypervisor) Return From Interrupt) instruction is
> used for switching from the kernel to userspace, and from the
> hypervi
On Sun, Feb 04, 2018 at 03:59:59PM +1100, Michael Ellerman wrote:
> From: Michael Neuling
>
> commit 191eccb1580939fb0d47deb405b82a85b0379070 upstream.
>
> A new hypervisor call has been defined to communicate various
> characteristics of the CPU to guests. Add definitions for the hcall
> number
On Sun, Feb 04, 2018 at 04:00:01PM +1100, Michael Ellerman wrote:
> From: Nicholas Piggin
>
> commit 222f20f140623ef6033491d0103ee0875fe87d35 upstream.
>
> This commit does simple conversions of rfi/rfid to the new macros that
> include the expected destination context. By simple we mean cases
>
On Sun, Feb 04, 2018 at 03:59:54PM +1100, Michael Ellerman wrote:
> Hi Greg,
>
> This is a backport to v4.4 of the RFI flush series that went upstream
> recently.
> There's also a few other commits I noticed had not made it to v4.4 due to
> needing manual backports.
I've queued these up, and fil
On Sun, Feb 04, 2018 at 04:00:05PM +1100, Michael Ellerman wrote:
> commit aa8a5e0062ac940f7659394f4817c948dc8c0667 upstream.
>
> On some CPUs we can prevent the Meltdown vulnerability by flushing the
> L1-D cache on exit from kernel to user mode, and from hypervisor to
> guest.
>
> This is known
On Sun, Feb 04, 2018 at 04:00:10PM +1100, Michael Ellerman wrote:
> commit 236003e6b5443c45c18e613d2b0d776a9f87540e upstream.
>
> Expose the state of the RFI flush (enabled/disabled) via debugfs, and
> allow it to be enabled/disabled at runtime.
>
> eg: $ cat /sys/kernel/debug/powerpc/rfi_flush
>
Hello,
The PA Semi PWRficient Gigabit Ethernet doesn't work anymore since the
first networking updates [1] for the kernel 4.16.
Error messages:
[ 0.634241] libphy: pasemi gpio mdio bus: probed
[ 0.634749] pasemi gpio mdio bus: Cannot register as MDIO bus, err -38
[ 2.311496] pasemi_m
On Sun, Feb 04, 2018 at 05:47:03PM +0100, Christian Zigotzky wrote:
> Hello,
>
> The PA Semi PWRficient Gigabit Ethernet doesn't work anymore since the first
> networking updates [1] for the kernel 4.16.
>
> Error messages:
>
> [ 0.634241] libphy: pasemi gpio mdio bus: probed
> [ 0.634749]
On 02/04/2018 09:16 AM, Andrew Lunn wrote:
> On Sun, Feb 04, 2018 at 05:47:03PM +0100, Christian Zigotzky wrote:
>> Hello,
>>
>> The PA Semi PWRficient Gigabit Ethernet doesn't work anymore since the first
>> networking updates [1] for the kernel 4.16.
>>
>> Error messages:
>>
>> [ 0.634241] l
On Sat, 3 Feb 2018 09:36:20 -0600
Segher Boessenkool wrote:
> Hi! Some remarks:
Hi Segher,
Thanks for looking, we're a bit constrained in what we should do because
Linux side of the patch is already merged.
>
> On Sat, Feb 03, 2018 at 02:27:32PM +1000, Nicholas Piggin wrote:
> > + /*
> > +
Commit 76d837a4c0f9 ("KVM: PPC: Book3S PR: Don't include SPAPR TCE code
on non-pseries platforms") added a reference to the globally undefined
symbol PPC_SERIES. Looking at the rest of the commit, PPC_PSERIES was
probably intended.
Change PPC_SERIES to PPC_PSERIES.
Discovered with the
https://git
On Mon, Feb 05, 2018 at 02:21:14AM +0100, Ulf Magnusson wrote:
> Commit 76d837a4c0f9 ("KVM: PPC: Book3S PR: Don't include SPAPR TCE code
> on non-pseries platforms") added a reference to the globally undefined
> symbol PPC_SERIES. Looking at the rest of the commit, PPC_PSERIES was
> probably intend
On Mon, Feb 5, 2018 at 5:48 AM, Paul Mackerras wrote:
> On Mon, Feb 05, 2018 at 02:21:14AM +0100, Ulf Magnusson wrote:
>> Commit 76d837a4c0f9 ("KVM: PPC: Book3S PR: Don't include SPAPR TCE code
>> on non-pseries platforms") added a reference to the globally undefined
>> symbol PPC_SERIES. Looking
In commit eb5c3f1c8647 ("powerpc: Always save/restore checkpointed regs
during treclaim/trecheckpoint") __tm_recheckpoint was modified to no
longer take the second parameter 'unsigned long orig_msr' as part of a
TM rewrite to simplify the reclaiming/recheckpointing process.
There is a comment in t
Nicholas Piggin writes:
> These were intended for use by KVM, but it has its own LPID
> flushing code and never used these.
>
Reviewed-by: Aneesh Kumar K.V
> Cc: Aneesh Kumar K.V
> Signed-off-by: Nicholas Piggin
> ---
> .../powerpc/include/asm/book3s/64/tlbflush-radix.h | 3 --
> arch/powe
On Mon, Feb 05, 2018 at 05:58:59AM +0100, Ulf Magnusson wrote:
> On Mon, Feb 5, 2018 at 5:48 AM, Paul Mackerras wrote:
> > On Mon, Feb 05, 2018 at 02:21:14AM +0100, Ulf Magnusson wrote:
> >> Commit 76d837a4c0f9 ("KVM: PPC: Book3S PR: Don't include SPAPR TCE code
> >> on non-pseries platforms") add
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