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Re: [PATCH v4 00/12] target/arm mte fixes

From: Richard Henderson
Subject: Re: [PATCH v4 00/12] target/arm mte fixes
Date: Thu, 8 Apr 2021 07:25:19 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 4/8/21 5:47 AM, Peter Maydell wrote:
Richard Henderson (12):
   accel/tcg: Preserve PAGE_ANON when changing page permissions
   target/arm: Check PAGE_WRITE_ORG for MTE writeability
   target/arm: Fix mte_checkN
   target/arm: Split out mte_probe_int
   target/arm: Fix unaligned checks for mte_check1, mte_probe1
   test/tcg/aarch64: Add mte-5
   target/arm: Replace MTEDESC ESIZE+TSIZE with SIZEM1
   target/arm: Merge mte_check1, mte_checkN
   target/arm: Rename mte_probe1 to mte_probe
   target/arm: Simplify sve mte checking
   target/arm: Remove log2_esize parameter to gen_mte_checkN
   exec: Fix overlap of PAGE_ANON and PAGE_TARGET_1

So, what should we do with this series for 6.0 ? We'll be at rc3
next week, and this big a change seems risky at this point
in the cycle. Is there anything in here that's worth extracting
as a for-6.0 change? (maybe patches 1, 2, 12?)

Definitely 12, since that broke BTI.

Patches 1 and 2 are certainly simple enough.

Otherwise... the rest would be nice to have. It's quite isolated to mte=on. If you defer, I guess that's fine too -- the bug report did come in quite late.


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