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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: agraf@suse.de, benh@kernel.crashing.org, paulus@samba.org
Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org,
	kvm-ppc@vger.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH] powerpc: book3s: PR: Enable Little Endian PR guest
Date: Mon, 11 Nov 2013 19:38:18 +0530	[thread overview]
Message-ID: <1384178898-24673-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)

From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

This patch make sure we inherit the LE bit correctly in different case
so that we can run Little Endian distro in PR mode

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---

This patch depends on the below two changes
1)  [PATCH v5 0/6] KVM: PPC: Book3S: MMIO support for Little Endian guests (kvm-ppc)
        http://mid.gmane.org/1383672128-26795-1-git-send-email-clg@fr.ibm.com
2) [PATCH] powerpc: book3s: kvm: Use the saved dsisr and dar values
       http://mid.gmane.org/1384178577-23721-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com

 arch/powerpc/kvm/book3s_64_mmu.c | 2 +-
 arch/powerpc/kvm/book3s_pr.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index 83da1f8..d339096 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -38,7 +38,7 @@
 
 static void kvmppc_mmu_book3s_64_reset_msr(struct kvm_vcpu *vcpu)
 {
-	kvmppc_set_msr(vcpu, MSR_SF);
+	kvmppc_set_msr(vcpu, MSR_SF | (vcpu->arch.shared->msr & MSR_LE));
 }
 
 static struct kvmppc_slb *kvmppc_mmu_book3s_64_find_slbe(
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index a7fe87a..cf9362c 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -226,7 +226,7 @@ static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu)
 	ulong smsr = vcpu->arch.shared->msr;
 
 	/* Guest MSR values */
-	smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE;
+	smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE;
 	/* Process MSR values */
 	smsr |= MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_PR | MSR_EE;
 	/* External providers the guest reserved */
-- 
1.8.3.2

             reply	other threads:[~2013-11-11 14:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-11 14:08 Aneesh Kumar K.V [this message]
2013-11-12 12:37 ` [PATCH] powerpc: book3s: PR: Enable Little Endian PR guest Alexander Graf
2013-11-12 21:03   ` Paul Mackerras

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