diff options
author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-25 00:19:23 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 07:11:10 -0400 |
commit | 3fe0a63efd4437f6438ce5f2708929b1108873b6 (patch) | |
tree | f25811c4ac0ee5afcedaa99d0d8c5233e376c8e0 | |
parent | 0814e0bace537b7024b09187346b99401e6281be (diff) |
x86, 64-bit: __switch_to(): move arch_leave_lazy_cpu_mode() to the right place
We must leave lazy mode before switching the %fs and %gs selectors.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r-- | arch/x86/kernel/process_64.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index ddc6fcc73dc6..488eaca47bd8 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c | |||
@@ -562,6 +562,15 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) | |||
562 | 562 | ||
563 | load_TLS(next, cpu); | 563 | load_TLS(next, cpu); |
564 | 564 | ||
565 | /* | ||
566 | * Leave lazy mode, flushing any hypercalls made here. | ||
567 | * This must be done before restoring TLS segments so | ||
568 | * the GDT and LDT are properly updated, and must be | ||
569 | * done before math_state_restore, so the TS bit is up | ||
570 | * to date. | ||
571 | */ | ||
572 | arch_leave_lazy_cpu_mode(); | ||
573 | |||
565 | /* | 574 | /* |
566 | * Switch FS and GS. | 575 | * Switch FS and GS. |
567 | */ | 576 | */ |