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| author | Liang Chen <liangchen.linux@gmail.com> | 2018-07-25 10:32:14 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:59:19 +0200 |
| commit | ee6268ba3a6861b2806e569bff7fe91fbdf846dd (patch) | |
| tree | a43322cfc909ce16454ef5d9cdaa46dd9b51d026 /arch | |
| parent | KVM/MMU: Combine flushing remote tlb in mmu_set_spte() (diff) | |
| download | linux-ee6268ba3a6861b2806e569bff7fe91fbdf846dd.tar.xz linux-ee6268ba3a6861b2806e569bff7fe91fbdf846dd.zip | |
KVM: x86: Skip pae_root shadow allocation if tdp enabled
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@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 8f216321d33b..f5aef52b148b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5341,6 +5341,9 @@ 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 |