On 25/07/2018 10:32, Liang Chen wrote: > Considering the fact that the pae_root shadow is not needed when > tdp is in use, skip the pae_root shadow page allocation to allow > mmu creation even not being able to obtain memory from DMA32 > zone when particular cgroup cpuset.mems or mempolicy control is > applied. > > Signed-off-by: Liang Chen <liangchen.linux@xxxxxxxxx> > --- > arch/x86/kvm/mmu.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > index d594690..af8cc1e 100644 > --- a/arch/x86/kvm/mmu.c > +++ b/arch/x86/kvm/mmu.c > @@ -5029,6 +5029,9 @@ static int alloc_mmu_pages(struct kvm_vcpu *vcpu) > struct page *page; > int i; > > + if (tdp_enabled) > + return 0; > + > /* > * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64. > * Therefore we need to allocate shadow page tables in the first > Queued, thanks. Paolo
