kvm: x86/mmu: Support dirty logging for the TDP MMU

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Dirty logging is a key feature of the KVM MMU and must be supported by
the TDP MMU. Add support for both the write protection and PML dirty
logging modes.

Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell
machine. This series introduced no new failures.

This series can be viewed in Gerrit at:
	https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538

Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20201014182700.2888246-16-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

This commit is contained in:

Ben Gardon 2020-10-14 11:26:55 -07:00 • committed by Paolo Bonzini

parent 1d8dd6b3f1

commit a6a0b05da9

6 changed files with 328 additions and 9 deletions

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14

arch/x86/kvm/mmu/mmu.c

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7

arch/x86/kvm/mmu/tdp_iter.h

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299

arch/x86/kvm/mmu/tdp_mmu.c

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10

arch/x86/kvm/mmu/tdp_mmu.h

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1

include/linux/kvm_host.h

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6

virt/kvm/kvm_main.c

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