x86 memory DR should be disabled
Upstreaming OS-6835 as a bhyve prereq:
As a side-effect of the kernel VA layout changes in OS-6606 (Feature #12608: want memory arena for vmm applications), we can no longer naively accept the system-provided
plat_dr_physmaxvalue - we end up bumping into the VA hole.
As this code is likely badly rotted anyway - if it ever worked - we'll just explicitly disable it by forcing
For now, though, we won't make any attempt at removing any of the x86 DR code here.
Updated by Electric Monk about 2 years ago
- Status changed from In Progress to Closed
- % Done changed from 0 to 100
commit 04909c8c9ef61a86dd44bdaf341a1d9a2f0206e5 Author: John Levon <email@example.com> Date: 2020-05-08T15:21:40.000Z 12608 want memory arena for vmm applications 12609 x86 memory DR should be disabled Reviewed by: Jerry Jelinek <firstname.lastname@example.org> Reviewed by: Patrick Mooney <email@example.com> Reviewed by: Toomas Soome <firstname.lastname@example.org> Approved by: Gordon Ross <email@example.com>