From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
David Gibson <david@gibson.dropbear.id.au>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org,
Alex Williamson <alex.williamson@redhat.com>,
Paul Mackerras <paulus@ozlabs.org>
Subject: [PATCH kernel 0/2] KVM: PPC: Check if IOMMU page is contained in the pinned physical page
Date: Tue, 19 Jun 2018 18:44:12 +1000 [thread overview]
Message-ID: <20180619084414.808-1-aik@ozlabs.ru> (raw)
This is to improve page boundaries checking and should probably
be cc:stable. I came accross this while debugging nvlink2 passthrough
but the lack of checking might be exploited by the existing userspace.
Please comment. Thanks.
Alexey Kardashevskiy (2):
vfio/spapr: Use IOMMU pageshift rather than pagesize
KVM: PPC: Check if IOMMU page is contained in the pinned physical page
arch/powerpc/include/asm/mmu_context.h | 4 ++--
arch/powerpc/kvm/book3s_64_vio.c | 2 +-
arch/powerpc/kvm/book3s_64_vio_hv.c | 6 ++++--
arch/powerpc/mm/mmu_context_iommu.c | 16 ++++++++++++++--
drivers/vfio/vfio_iommu_spapr_tce.c | 10 +++++-----
5 files changed, 26 insertions(+), 12 deletions(-)
--
2.11.0
next reply other threads:[~2018-06-19 8:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 8:44 Alexey Kardashevskiy [this message]
2018-06-19 8:44 ` [PATCH kernel 1/2] vfio/spapr: Use IOMMU pageshift rather than pagesize Alexey Kardashevskiy
2018-06-20 0:42 ` David Gibson
2018-06-19 8:44 ` [PATCH kernel 2/2] KVM: PPC: Check if IOMMU page is contained in the pinned physical page Alexey Kardashevskiy
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