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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-02-18 11:18:57 -0800
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-03-29 23:36:01 -0700
commit224101ed69d3fbb486868e0f6e0f9fa37302efb4 (patch)
tree46830842a99659421eeabee65d299ab4c3b59f28 /arch/x86/lguest
parentb407fc57b815b2016186220baabc76cc8264206e (diff)
downloadop-kernel-dev-224101ed69d3fbb486868e0f6e0f9fa37302efb4.zip
op-kernel-dev-224101ed69d3fbb486868e0f6e0f9fa37302efb4.tar.gz
x86/paravirt: finish change from lazy cpu to context switch start/end
Impact: fix lazy context switch API Pass the previous and next tasks into the context switch start end calls, so that the called functions can properly access the task state (esp in end_context_switch, in which the next task is not yet completely current). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Diffstat (limited to 'arch/x86/lguest')
-rw-r--r--arch/x86/lguest/boot.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 41a5562..5287081 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -153,10 +153,10 @@ static void lguest_leave_lazy_mmu_mode(void)
paravirt_leave_lazy_mmu();
}
-static void lguest_leave_lazy_cpu_mode(void)
+static void lguest_end_context_switch(struct task_struct *next)
{
hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0);
- paravirt_leave_lazy_cpu();
+ paravirt_end_context_switch(next);
}
/*G:033
@@ -1031,8 +1031,8 @@ __init void lguest_init(void)
pv_cpu_ops.write_gdt_entry = lguest_write_gdt_entry;
pv_cpu_ops.write_idt_entry = lguest_write_idt_entry;
pv_cpu_ops.wbinvd = lguest_wbinvd;
- pv_cpu_ops.lazy_mode.enter = paravirt_enter_lazy_cpu;
- pv_cpu_ops.lazy_mode.leave = lguest_leave_lazy_cpu_mode;
+ pv_cpu_ops.start_context_switch = paravirt_start_context_switch;
+ pv_cpu_ops.end_context_switch = lguest_end_context_switch;
/* pagetable management */
pv_mmu_ops.write_cr3 = lguest_write_cr3;
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