linux-kernel - [PATCH 0/4] KVM: nested x86: nested page faults fixes

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Message-Id: <1409670830-14544-1-git-send-email-pbonzini@redhat.com>
Date:	Tue,  2 Sep 2014 17:13:46 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:	jroedel@...e.de, agraf@...e.de, valentine.sinitsyn@...il.com,
	jan.kiszka@...mens.com, gleb@...udius-systems.com,
	avi@...udius-systems.com
Subject: [PATCH 0/4] KVM: nested x86: nested page faults fixes

Patch 1 implements AMD semantics for non-leaf PDPEs and PML4Es, which
are a bit different from Intel.  The SVM test relies on this, so fix it.

Patch 2 lets nested SVM implement nested page fault correctly.  We were
not setting bits 32/33.

Patches 3 and 4 fix the interaction between emulator and nested EPT/NPT,
which was reported by Valentine.

Reviews are very welcome, I'm walking on thin ice here...

Paolo

Paolo Bonzini (4):
  KVM: x86: reserve bit 8 of non-leaf PDPEs and PML4Es in 64-bit mode on AMD
  KVM: nSVM: propagate the NPF EXITINFO to the guest
  KVM: x86: inject nested page faults on emulated instructions
  KVM: x86: propagate exception from permission checks on the nested page fault

 arch/x86/include/asm/kvm_host.h |  9 ++++++---
 arch/x86/kvm/cpuid.h            |  8 ++++++++
 arch/x86/kvm/mmu.c              | 15 ++++++++++++---
 arch/x86/kvm/paging_tmpl.h      | 13 ++++++++++---
 arch/x86/kvm/svm.c              | 26 ++++++++++++++++++++++----
 arch/x86/kvm/x86.c              | 27 +++++++++++++++++++--------
 6 files changed, 77 insertions(+), 21 deletions(-)

-- 
1.8.3.1

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