What register state is saved on a context switch in Linux?

Posted by federal on Stack Overflow See other posts from Stack Overflow or by federal
Published on 2010-06-09T14:17:37Z Indexed on 2010/06/09 14:22 UTC
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linux-device-driver

Where in Linux would you look to find out what registers are saved on a context switch? I'm wondering, for example, if it is safe to use FP or vector registers in kernel-mode driver code (mostly interested in x86-64 and ARM, but I'm hoping for an architecture-independent answer).

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What register state is saved on a context switch in Linux? - Developer IT

What register state is saved on a context switch in Linux?

linux-device-driver

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