CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2026/10/07 15:08:34
Modified files:
usr.sbin/vmd : x86_mmio.c
Log message:
Add truncation detection to vmd's instruction decoder.
vmd(8) ultimately needs a way to deal with instructions that cross
page boundaries. This is a baby step to get there by fixing up the
decoder logic to detect when we're out of fetched instruction bytes
but not done decoding an instruction. Next steps will be to add in
cross-page fetching and injecting #PF if the next page is paged out
and we weren't able to decode with just the bytes from the first page.
These state machine changes uncovered some issues with 16-bit
addressing and decoding that got fixed along the way.
ok mlarkin@
