[PATCH 0/4] KVM: x86: nVMX: Nested PML bug fix and cleanup

From: Sean Christopherson
Date: Mon Jun 22 2020 - 17:58:36 EST


Fix for a theoretical bug in nested PML emulation, and additional clean up
of the related code.

Tested by doing a few rounds of intra-VM migration (same L1) of an L2
guest with PML confirmed enabled in L1.

This has a trivial conflict with patch 3 of the MMU files series[*], both
remove function prototypes from mmu.h.

[*] https://lkml.kernel.org/r/20200622202034.15093-4-sean.j.christopherson@xxxxxxxxx

Sean Christopherson (4):
KVM: nVMX: Plumb L2 GPA through to PML emulation
KVM: x86/mmu: Drop kvm_arch_write_log_dirty() wrapper
KVM: nVMX: WARN if PML emulation helper is invoked outside of nested
guest
KVM: x86/mmu: Make .write_log_dirty a nested operation

arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/mmu.h | 1 -
arch/x86/kvm/mmu/mmu.c | 15 -------------
arch/x86/kvm/mmu/paging_tmpl.h | 7 +++---
arch/x86/kvm/vmx/nested.c | 38 +++++++++++++++++++++++++++++++++
arch/x86/kvm/vmx/vmx.c | 37 --------------------------------
6 files changed, 43 insertions(+), 57 deletions(-)

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2.26.0