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kvm: remove redundant registration of BSP's hv_clock area

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These days hv_clock allocation is memblock based (i.e. the percpu
allocator is not involved), which means that the physical address
of each of the per-cpu hv_clock areas is guaranteed to remain
unchanged through all its lifetime and we do not need to update
its location after CPU bring-up.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Fernando Luis Vázquez Cao 2014-02-18 19:09:11 +09:00 committed by Paolo Bonzini
parent f303b4ce8b
commit 0d75de4a65
2 changed files with 1 additions and 2 deletions
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1
arch/x86/kernel/kvm.c
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@ -417,7 +417,6 @@ void kvm_disable_steal_time(void)
#ifdef CONFIG_SMP
static void __init kvm_smp_prepare_boot_cpu(void)
{
WARN_ON(kvm_register_clock("primary cpu clock"));
kvm_guest_cpu_init();
native_smp_prepare_boot_cpu();
kvm_spinlock_init();

2
arch/x86/kernel/kvmclock.c
View File

@ -242,7 +242,7 @@ void __init kvmclock_init(void)
hv_clock = __va(mem);
memset(hv_clock, 0, size);
if (kvm_register_clock("boot clock")) {
if (kvm_register_clock("primary cpu clock")) {
hv_clock = NULL;
memblock_free(mem, size);
return;