Re: [PATCH 4.9 V2 09/24] ARM: spectre-v2: add firmware based hardening

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 13 Nov 2018 15:16:03 +0000,
David Long <dave.long@xxxxxxxxxx> wrote:
> 
> On 11/13/18 9:23 AM, Marc Zyngier wrote:
> > Russell,
> > 
> > On Mon, 12 Nov 2018 16:54:10 +0000,
> > Russell King - ARM Linux <linux@xxxxxxxxxxxxxxx> wrote:
> >> 
> >> Marc,
> >> 
> >> Can you please ack this to say that you are now happy with it after
> >> your comments on version 1, so we can move forward and have Greg
> >> merge it.
> >> 
> >> Thanks.
> >> 
> >> On Wed, Nov 07, 2018 at 11:43:47AM -0500, David Long wrote:
> >>> From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
> >>> 
> >>> Commit 10115105cb3aa17b5da1cb726ae8dd5f6854bd93 upstream.
> >>> Commit 6282e916f774e37845c65d1eae9f8c649004f033 upstream.
> >>> 
> >>> Add firmware based hardening for cores that require more complex
> >>> handling in firmware.
> >>> 
> >>> Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
> >>> Boot-tested-by: Tony Lindgren <tony@xxxxxxxxxxx>
> >>> Reviewed-by: Tony Lindgren <tony@xxxxxxxxxxx>
> >>> Reviewed-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> >>> Signed-off-by: David A. Long <dave.long@xxxxxxxxxx>
> > 
> > Sure. Feel free to add my
> > 
> > Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> > 
> > I assume someone has tested these patches (I haven't, and I'm unlikely
> > to do so in the near future as I'm travelling). I'm not sure Tony's
> > "Boot-tested-by" is still valid, and Florian's earlier set of tests
> > didn't show the issues of the initial backport.
> > 
> > Thanks,
> > 
> > 	M.
> > 
> 
> I tested the patch set through kernelci and (belatedly)
> kvm-unit-tests, the latter of which revealed the problem in V1 #11/24.
> I have to assume Florian didn't specifically test kvm, something I
> myself had originally assumed would be covered by kernelci.
> 
> I didn't scrub any of the ack/tested/reviewed lines from the original
> patches.  I've always assumed this is the correct way to do this but
> maybe it's not?

Leaving the tags is absolutely fine, they indicate that the original
patch was actually tested.

I'm more worried of potential regressions: we've already found two
problems, and although I cannot spot any other, it is fairly obvious
that there has only been a limited amount of testing. It may not be a
problem, but I'd rather be cautious.

Thanks,

	M.

-- 
Jazz is not dead, it just smell funny.



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux