Re: [PATCH] KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT

On Tue, Jun 25, 2019 at 12:45:24PM +0200, Jiri Palecek wrote:

Original commit id b6b80c78 ported to stable/linux-4.19.y.

SVM's Nested Page Tables (NPT) reuses x86 paging for the host-controlled page walk. For 32-bit KVM, this means PAE paging is used even when TDP is enabled, i.e. the PAE root array needs to be allocated.

Fixes: ee6268ba3a68 ("KVM: x86: Skip pae_root shadow allocation if tdp enabled") Cc: stable@vger.kernel.org Reported-by: Jiri Palecek jpalecek@web.de Signed-off-by: Sean Christopherson sean.j.christopherson@intel.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com

Could you add your signed-off-by please?

-- Thanks, Sasha