On 15 May 2017, at 7:26, Konstantin Belousov wrote:
Try this. If it works, I will write a proper patch.
diff --git a/sys/amd64/amd64/cpu_switch.S
b/sys/amd64/amd64/cpu_switch.S
index 33437ad16e6..9c0cd05ebea 100644
--- a/sys/amd64/amd64/cpu_switch.S
+++ b/sys/amd64/amd64/cpu_switch.S
@@ -369,6 +369,11 @@ END(savectx)
* Resuming processor state from pcb.
*/
ENTRY(resumectx)
+ movl $MSR_EFER,%ecx
+ rdmsr
+ orl $EFER_NXE,%eax
+ wrmsr
+
/* Switch to KPML4phys. */
movq KPML4phys,%rax
movq %rax,%cr3
Running drm-next (which has -CURRENT last merged somewhere around
r317651), this patch fixes one of the two problems I've been
experiencing with suspend/resume. Definite progress. :)
Thanks!
Jon
--
Jonathan Anderson
jonat...@freebsd.org
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