tree 185bd0cacec5669cc12fe49050c6370b81ec00da
parent 2572b85f54136d1c38e4e88b10b6208a2e0494c2
author Gabe Black <gabe.black@gmail.com> 1641886115 -0800
committer Gabe Black <gabe.black@gmail.com> 1642233505 +0000

arch-x86: Implement IRET for real mode.

The IRET instruction is comparitively very simple in real mode. It just
pops a few values off the stack into CS, RIP, and RFLAGS, and sets the
CS base.

Change-Id: I2bc6015209f1beca31253e288dad7c8de5cd22fc
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/55448
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>