KVM: x86: Allow CPU to force vendor-specific TDP level

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AMD future CPUs will require a 5-level NPT if host CR4.LA57 is set.
To prevent kvm_mmu_get_tdp_level() from incorrectly changing NPT level
on behalf of CPUs, add a new parameter in kvm_configure_mmu() to force
a fixed TDP level.

Signed-off-by: Wei Huang <wei.huang2@amd.com>
Message-Id: <20210818165549.3771014-2-wei.huang2@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Wei Huang 2021-08-18 11:55:47 -05:00 • committed by Paolo Bonzini

parent ec607a564f

commit 746700d21f

4 changed files with 15 additions and 7 deletions

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5

arch/x86/include/asm/kvm_host.h

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10

arch/x86/kvm/mmu/mmu.c

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4

arch/x86/kvm/svm/svm.c

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3

arch/x86/kvm/vmx/vmx.c

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