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Emulating CPUs with larger atomic accesses
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From: |
Florian Weimer |
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Subject: |
Emulating CPUs with larger atomic accesses |
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Date: |
Fri, 13 May 2022 12:00:14 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) |
What's QEMU's approach to emulating CPU instructions that atomatically
operate on values larger than what is supported by the host CPU?
I assume that for full system emulation, this is not a problem, but
qemu-user will not achieve atomic behavior on shared memory mappings.
How much of a problem is this in practice?
Thanks,
Florian
- Emulating CPUs with larger atomic accesses,
Florian Weimer <=