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Re: [PATCH v3] tcg: Fix execution on Apple Silicon
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From: |
Richard Henderson |
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Subject: |
Re: [PATCH v3] tcg: Fix execution on Apple Silicon |
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Date: |
Wed, 13 Jan 2021 15:35:17 -1000 |
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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.
r~