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xen: restore runstate_info even if !have_vcpu_info_placement 

Even if have_vcpu_info_placement is not set, we still need to set up
the runstate area on each resumed vcpu.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>
This commit is contained in:
Jeremy Fitzhardinge 2009-11-21 08:46:29 +08:00
parent be012920ec
commit 3905bb2aa7
1 changed files with 11 additions and 14 deletions
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25
arch/x86/xen/enlighten.c
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@ -138,26 +138,23 @@ static void xen_vcpu_setup(int cpu)
*/
void xen_vcpu_restore(void)
{
if (have_vcpu_info_placement) {
int cpu;
int cpu;
for_each_online_cpu(cpu) {
bool other_cpu = (cpu != smp_processor_id());
for_each_online_cpu(cpu) {
bool other_cpu = (cpu != smp_processor_id());
if (other_cpu &&
HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL))
BUG();
if (other_cpu &&
HYPERVISOR_vcpu_op(VCPUOP_down, cpu, NULL))
BUG();
xen_setup_runstate_info(cpu);
xen_setup_runstate_info(cpu);
if (have_vcpu_info_placement)
xen_vcpu_setup(cpu);
if (other_cpu &&
HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL))
BUG();
}
BUG_ON(!have_vcpu_info_placement);
if (other_cpu &&
HYPERVISOR_vcpu_op(VCPUOP_up, cpu, NULL))
BUG();
}
}