diff options
| author | jkim <jkim@FreeBSD.org> | 2014-03-04 20:07:36 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2014-03-04 20:07:36 +0000 |
| commit | 74dcbf58438806a35791d48c59ff969ee1b01622 (patch) | |
| tree | 99d6f725cf03f4b09c7d9ffd074af652551f4590 /sys/amd64/amd64/cpu_switch.S | |
| parent | 2c50988dca8f1c498ada4b3c8c0c275a7c324622 (diff) | |
| download | FreeBSD-src-74dcbf58438806a35791d48c59ff969ee1b01622.zip FreeBSD-src-74dcbf58438806a35791d48c59ff969ee1b01622.tar.gz | |
Properly save and restore CR0.
MFC after: 3 days
Diffstat (limited to 'sys/amd64/amd64/cpu_switch.S')
| -rw-r--r-- | sys/amd64/amd64/cpu_switch.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S index bbd85fb..b0f3412 100644 --- a/sys/amd64/amd64/cpu_switch.S +++ b/sys/amd64/amd64/cpu_switch.S @@ -552,8 +552,10 @@ END(resumectx) */ ENTRY(ctx_fpusave) movq %cr0,%rax + pushq %rax clts call fpusave + popq %rax movq %rax,%cr0 ret END(ctx_fpusave) |
