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From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: linuxppc-dev@lists.ozlabs.org,
 "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>, mpe@ellerman.id.au
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References: <20210326070755.304625-1-aneesh.kumar@linux.ibm.com>
Subject: Re: [PATCH] powerpc/mm/book3s64: Use the correct storage key value
 when calling H_PROTECT
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Cc: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
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 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

On Fri, 26 Mar 2021 12:37:55 +0530, Aneesh Kumar K.V wrote:
> H_PROTECT expect the flag value to include
> flags: AVPN, pp0, pp1, pp2, key0-key4, Noexec, CMO Option flags
> 
> This patch updates hpte_updatepp() to fetch the storage key value from the linux page
> table and use the same in H_PROTECT hcall.
> 
> native_hpte_updatepp() is not updated because the kernel doesn't clear the existing
> storage key value there. The kernel also doesn't use hpte_updatepp() callback for
> updating storage keys.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/mm/book3s64: Use the correct storage key value when calling H_PROTECT
      https://git.kernel.org/powerpc/c/53f1d31708f6240e4615b0927df31f182e389e2f

cheers