Re: arm64 mrs and system registers
- In reply to: Paul Floyd : "arm64 mrs and system registers"
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Date: Tue, 09 Apr 2024 07:04:14 UTC
On 4/8/24 14:02, Paul Floyd wrote: > Hi > > I've been looking at this bugzilla item > > https://bugs.kde.org/show_bug.cgi?id=392146 > > Is there any difference between Linux and FreeBSD when it comes to what > registers and fields are exposed by the kernel (see comment 17 in the > link above). > > I did have a poke around the kernel code but it's a bit hard to tell > exactly which of the access macros are being used, without exhaustively > grepping for them one by one. > > A+ > Paul > mrs emulation is handled as an undefined instruction, so the exhaustive list of what we actually emulate should pretty much be: https://cgit.freebsd.org/src/tree/sys/arm64/arm64/undefined.c#n96 Thanks, Kyle Evans