Messages in this thread | | | Date | Wed, 25 Sep 2013 11:16:05 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH v1 2/7] arm64: introduce interfaces to hotpatch kernel and module code |
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On Wed, 25 Sep 2013 20:12:17 +0530 Sandeepa Prabhu <sandeepa.prabhu@linaro.org> wrote:
> > On aarch64, are instructions always word aligned? If not, it should be > > safe for stop machine to modify non word aligned instructions, but this > > patch looks like it doesn't allow stop_machine() to do so. > Steve, > > Yes, aarch64 instructions must be word-aligned, else instruction fetch > would generate Misaligned PC fault. >
Thanks for clarifying, as IIUC, there's ARM architectures that allow for 2 and 4 byte instructions.
-- Steve
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