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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/