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[RFC,09/14] pc: kvm_apic: pass APIC ID depending on xAPIC/x2APIC mode

Message ID 1462786020-144172-10-git-send-email-imammedo@redhat.com
State New
Headers show

Commit Message

Igor Mammedov May 9, 2016, 9:26 a.m. UTC 
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/i386/kvm/apic.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
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Patch

diff --git a/hw/i386/kvm/apic.c b/hw/i386/kvm/apic.c
index 3c7c8fa..c6891b8 100644
--- a/hw/i386/kvm/apic.c
+++ b/hw/i386/kvm/apic.c
@@ -32,7 +32,11 @@  void kvm_put_apic_state(DeviceState *dev, struct kvm_lapic_state *kapic)
     int i;
 
     memset(kapic, 0, sizeof(*kapic));
-    kvm_apic_set_reg(kapic, 0x2, s->id << 24);
+    if (s->apicbase & MSR_IA32_APICBASE_EXTD) {
+        kvm_apic_set_reg(kapic, 0x2, cpu_to_be32(s->initial_apic_id));
+    } else {
+        kvm_apic_set_reg(kapic, 0x2, s->id << 24);
+    }
     kvm_apic_set_reg(kapic, 0x8, s->tpr);
     kvm_apic_set_reg(kapic, 0xd, s->log_dest << 24);
     kvm_apic_set_reg(kapic, 0xe, s->dest_mode << 28 | 0x0fffffff);
@@ -57,7 +61,11 @@  void kvm_get_apic_state(DeviceState *dev, struct kvm_lapic_state *kapic)
     APICCommonState *s = APIC_COMMON(dev);
     int i, v;
 
-    s->id = kvm_apic_get_reg(kapic, 0x2) >> 24;
+    if (s->apicbase & MSR_IA32_APICBASE_EXTD) {
+        assert(be32_to_cpu(kvm_apic_get_reg(kapic, 0x2)) == s->initial_apic_id);
+    } else {
+        s->id = kvm_apic_get_reg(kapic, 0x2) >> 24;
+    }
     s->tpr = kvm_apic_get_reg(kapic, 0x8);
     s->arb_id = kvm_apic_get_reg(kapic, 0x9);
     s->log_dest = kvm_apic_get_reg(kapic, 0xd) >> 24;