Commit 4d29bdbf authored Jun 21, 2010 by Alexander Graf Committed by Avi Kivity Aug 01, 2010

KVM: PPC: Make BAT only guest segments work



When a guest sets its SR entry to invalid, we may still find a
corresponding entry in a BAT. So we need to make sure we're not
faulting on invalid SR entries, but instead just claim them to be
BAT resolved.

This resolves breakage experienced when using libogc based guests.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent 3b249157

arch/powerpc/kvm/book3s_32_mmu.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -354,10 +354,10 @@ static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
		*vsid = VSID_REAL_DR \| gvsid;
		break;
		case MSR_DR\|MSR_IR:
		if (!sr->valid)
		return -1;

		if (sr->valid)
		*vsid = sr->vsid;
		else
		*vsid = VSID_BAT \| gvsid;
		break;
		default:
		BUG();