KVM: x86/mmu: Enforce max_level on HugeTLB mappings

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Limit KVM's mapping level for HugeTLB based on its calculated max_level.
The max_level check prior to invoking host_mapping_level() only filters
out the case where KVM cannot create a 2mb mapping, it doesn't handle
the scenario where KVM can create a 2mb but not 1gb mapping, and the
host is using a 1gb HugeTLB mapping.

Fixes: 2f57b7051f ("KVM: x86/mmu: Persist gfn_lpage_is_disallowed() to max_level")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-01-08 12:24:35 -08:00 • committed by Paolo Bonzini

parent dc9ce71e66

commit 22b1d57b03

1 changed files with 3 additions and 2 deletions

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arch/x86/kvm/mmu/mmu.c

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