From: James Hogan <james.hogan@imgtec.com>
To: linux-mips@linux-mips.org
Cc: "James Hogan" <james.hogan@imgtec.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Ralf Baechle" <ralf@linux-mips.org>,
kvm@vger.kernel.org, stable@vger.kernel.org
Subject: [PATCH 0/3] KVM: MIPS: Miscellaneous 4.9 fixes
Date: Tue, 25 Oct 2016 16:08:18 +0100 [thread overview]
Message-ID: <cover.c0ced53ae71e1272ec1aaa16007e9eebb1c0eac6.1477320903.git-series.james.hogan@imgtec.com> (raw)
Message-ID: <20161025150818.hwWJq7bFQqgHUlpvlRnHVLi1Ge0lNyKtlTszEUuk__Q@z> (raw)
A few more fixes intended for v4.9. Patches 2 & 3 are tagged for stable.
- The first fixes lazy user ASID regeneration which was introduced in
4.9-rc1 and still wasn't quite right for SMP hosts.
- The second is a minor incorrect behaviour in ERET emulation when both
ERL and EXL are set (i.e. unlikely to hit in practice), which has been
wrong since MIPS KVM was added in v3.10.
- The third fixes a slightly risky completion of an MMIO load in branch
delay slot, where it'll try and read guest code outside of the proper
context. Currently we should only be able to hit this if the MMIO load
in branch delay slot is in guest TLB mapped (i.e. kernel module) code.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc: stable@vger.kernel.org
James Hogan (3):
KVM: MIPS: Fix lazy user ASID regenerate for SMP
KVM: MIPS: Make ERET handle ERL before EXL
KVM: MIPS: Precalculate MMIO load resume PC
arch/mips/include/asm/kvm_host.h | 7 ++++---
arch/mips/kvm/emulate.c | 32 +++++++++++++++++++-------------
arch/mips/kvm/mips.c | 5 ++++-
arch/mips/kvm/mmu.c | 4 ----
4 files changed, 27 insertions(+), 21 deletions(-)
--
git-series 0.8.10
next reply other threads:[~2016-10-25 15:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 15:08 James Hogan [this message]
2016-10-25 15:08 ` [PATCH 0/3] KVM: MIPS: Miscellaneous 4.9 fixes James Hogan
2016-10-25 15:08 ` [PATCH 1/3] KVM: MIPS: Fix lazy user ASID regenerate for SMP James Hogan
2016-10-25 15:08 ` James Hogan
2016-10-25 15:11 ` [PATCH 2/3] KVM: MIPS: Make ERET handle ERL before EXL James Hogan
2016-10-25 15:11 ` James Hogan
2016-10-25 15:11 ` [PATCH 3/3] KVM: MIPS: Precalculate MMIO load resume PC James Hogan
2016-10-25 15:11 ` James Hogan
2016-10-25 15:57 ` [PATCH 0/3] KVM: MIPS: Miscellaneous 4.9 fixes Paolo Bonzini
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