On Sat, 27 Apr 2013 11:13:19 +0800 Xiao Guangrong <xiaoguangr...@linux.vnet.ibm.com> wrote:
> This function is used to reset the large page info of all guest pages > which will be used in later patch > > Signed-off-by: Xiao Guangrong <xiaoguangr...@linux.vnet.ibm.com> > --- > arch/x86/kvm/x86.c | 25 +++++++++++++++++++++++++ > arch/x86/kvm/x86.h | 2 ++ > 2 files changed, 27 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index 52b4e97..8e4494c 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -6951,6 +6951,31 @@ static void memslot_set_lpage_disallowed(struct > kvm_memory_slot *slot, > } > } > > +static void clear_memslot_lpage_info(struct kvm_memory_slot *slot) > +{ > + int i; > + > + for (i = 1; i < KVM_NR_PAGE_SIZES; ++i) { > + int lpages; > + int level = i + 1; > + > + lpages = gfn_to_index(slot->base_gfn + slot->npages - 1, > + slot->base_gfn, level) + 1; > + > + memset(slot->arch.lpage_info[i - 1], 0, > + sizeof(*slot->arch.lpage_info[i - 1])); > + memslot_set_lpage_disallowed(slot, slot->npages, i, lpages); This does something other than clearing. Any better name? Takuya -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/