There is missing apic map recalculation after updating DFR, if it is
INIT RESET, in x2apic mode, local apic is software enabled before.
This patch fix it by introducing the function kvm_apic_set_dfr() to
be called in INIT RESET handling path.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <
1597827327-25055-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
atomic_set_release(&apic->vcpu->kvm->arch.apic_map_dirty, DIRTY);
}
atomic_set_release(&apic->vcpu->kvm->arch.apic_map_dirty, DIRTY);
}
+static inline void kvm_apic_set_dfr(struct kvm_lapic *apic, u32 val)
+{
+ kvm_lapic_set_reg(apic, APIC_DFR, val);
+ atomic_set_release(&apic->vcpu->kvm->arch.apic_map_dirty, DIRTY);
+}
+
static inline u32 kvm_apic_calc_x2apic_ldr(u32 id)
{
return ((id >> 4) << 16) | (1 << (id & 0xf));
static inline u32 kvm_apic_calc_x2apic_ldr(u32 id)
{
return ((id >> 4) << 16) | (1 << (id & 0xf));
- if (!apic_x2apic_mode(apic)) {
- kvm_lapic_set_reg(apic, APIC_DFR, val | 0x0FFFFFFF);
- atomic_set_release(&apic->vcpu->kvm->arch.apic_map_dirty, DIRTY);
- } else
+ if (!apic_x2apic_mode(apic))
+ kvm_apic_set_dfr(apic, val | 0x0FFFFFFF);
+ else
SET_APIC_DELIVERY_MODE(0, APIC_MODE_EXTINT));
apic_manage_nmi_watchdog(apic, kvm_lapic_get_reg(apic, APIC_LVT0));
SET_APIC_DELIVERY_MODE(0, APIC_MODE_EXTINT));
apic_manage_nmi_watchdog(apic, kvm_lapic_get_reg(apic, APIC_LVT0));
- kvm_lapic_set_reg(apic, APIC_DFR, 0xffffffffU);
+ kvm_apic_set_dfr(apic, 0xffffffffU);
apic_set_spiv(apic, 0xff);
kvm_lapic_set_reg(apic, APIC_TASKPRI, 0);
if (!apic_x2apic_mode(apic))
apic_set_spiv(apic, 0xff);
kvm_lapic_set_reg(apic, APIC_TASKPRI, 0);
if (!apic_x2apic_mode(apic))