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Re: [PATCH v3] tcg: Fix execution on Apple Silicon

From: Richard Henderson
Subject: Re: [PATCH v3] tcg: Fix execution on Apple Silicon
Date: Wed, 13 Jan 2021 15:35:17 -1000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 1/12/21 5:28 PM, Roman Bolshakov wrote:
> Pages can't be both write and executable at the same time on Apple
> Silicon. macOS provides public API to switch write protection [1] for
> JIT applications, like TCG.

So... considering that split w^x is now upstream, can we just call this once
per thread to enable write and leave it write?
Since we have the separate rw mapping.


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