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From: Gleb Natapov <gleb@redhat.com>
To: kvm@vger.kernel.org
Cc: Chegu Vinod <chegu_vinod@hp.com>, avi@redhat.com, mtosatti@redhat.com
Subject: [PATCH] KVM: apic: fix LDR calculation in x2apic mode
Date: Sun, 14 Oct 2012 13:08:58 +0200	[thread overview]
Message-ID: <20121014110858.GN16648@redhat.com> (raw)

Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c6e6b72..43e9fad 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1311,7 +1311,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
 	vcpu->arch.apic_base = value;
 	if (apic_x2apic_mode(apic)) {
 		u32 id = kvm_apic_id(apic);
-		u32 ldr = ((id & ~0xf) << 16) | (1 << (id & 0xf));
+		u32 ldr = ((id >> 4) << 16) | (1 << (id & 0xf));
 		kvm_apic_set_ldr(apic, ldr);
 	}
 	apic->base_address = apic->vcpu->arch.apic_base &
--
			Gleb.

             reply	other threads:[~2012-10-14 11:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-14 11:08 Gleb Natapov [this message]
2012-10-14 13:41 ` [PATCH] KVM: apic: fix LDR calculation in x2apic mode Chegu Vinod
2012-10-18 14:33 ` Avi Kivity

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