arch-x86: In the LVT in the local APIC, start with all entries masked.

This is what the APIC is supposed to look like when coming out of reset.

Change-Id: Ia9b6e13533692109849e729d9ad3b358f36e2e47
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/55451
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Matt Sinclair <mattdsinclair@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed