From: Mihai Caraman <mihai.caraman@freescale.com>
To: <kvm-ppc@vger.kernel.org>
Cc: Mihai Caraman <mihai.caraman@freescale.com>,
linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org
Subject: [PATCH 5/7 v2] KVM: PPC: e500: Remove E.PT and E.HV.LRAT categories from VCPUs
Date: Wed, 27 Mar 2013 00:05:10 +0200 [thread overview]
Message-ID: <1364335512-28426-6-git-send-email-mihai.caraman@freescale.com> (raw)
In-Reply-To: <1364335512-28426-1-git-send-email-mihai.caraman@freescale.com>
Embedded.Page Table (E.PT) category in VMs requires indirect tlb entries
emulation which is not supported yet. Configure TLBnCFG to remove E.PT
and E.HV.LRAT categories from VCPUs.
Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
---
v2:
- Remove E.HV.LRAT from vcpus
arch/powerpc/kvm/e500_mmu.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index cf60db1..0d2a293 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -867,11 +867,17 @@ static int vcpu_mmu_init(struct kvm_vcpu *vcpu,
vcpu->arch.tlbcfg[1] |= params[1].ways << TLBnCFG_ASSOC_SHIFT;
if (has_feature(vcpu, VCPU_FTR_MMU_V2)) {
+ vcpu->arch.mmucfg &= ~MMUCFG_LRAT;
+
if (has_feature(vcpu, VCPU_FTR_E_PT))
vcpu->arch.eptcfg = mfspr(SPRN_EPTCFG);
else
vcpu->arch.eptcfg = 0;
+ /* Guest mmu emulation currently doesn't handle E.PT */
+ vcpu->arch.tlbcfg[0] &= ~TLBnCFG_PT;
+ vcpu->arch.tlbcfg[1] &= ~TLBnCFG_IND;
+
vcpu->arch.tlbps[0] = mfspr(SPRN_TLB0PS);
vcpu->arch.tlbps[1] = mfspr(SPRN_TLB1PS);
}
--
1.7.4.1
next prev parent reply other threads:[~2013-03-26 22:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-26 22:05 [PATCH 0/7 v2] KVM: PPC: e500: Enable FSL e6500 core Mihai Caraman
2013-03-26 22:05 ` [PATCH 1/7 v2] KVM: PPC: e500: Expose MMU registers via ONE_REG Mihai Caraman
2013-03-27 15:58 ` Alexander Graf
2013-03-26 22:05 ` [PATCH 2/7 v2] KVM: PPC: e500: Move vcpu's MMU configuration to dedicated functions Mihai Caraman
2013-03-26 22:05 ` [PATCH 3/7 v2] KVM: PPC: e500: Add support for TLBnPS registers Mihai Caraman
2013-03-26 22:48 ` Scott Wood
2013-03-26 22:05 ` [PATCH 4/7 v2] KVM: PPC: e500: Add support for EPTCFG register Mihai Caraman
2013-03-27 17:21 ` Alexander Graf
2013-03-26 22:05 ` Mihai Caraman [this message]
2013-03-27 17:23 ` [PATCH 5/7 v2] KVM: PPC: e500: Remove E.PT and E.HV.LRAT categories from VCPUs Alexander Graf
2013-03-27 17:50 ` Scott Wood
2013-03-26 22:05 ` [PATCH 6/7 v2] KVM: PPC: e500mc: Enable e6500 cores Mihai Caraman
2013-03-26 22:05 ` [PATCH 7/7 v2] KVM: PPC: e500: Add e6500 core to Kconfig description Mihai Caraman
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