diff options
| author | Peter Xu <peterx@redhat.com> | 2019-12-04 20:07:18 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-01-08 17:33:14 +0100 |
| commit | c96001c5702e66b64e0ffe533aa19d6567ce15bc (patch) | |
| tree | a474f3265b34c69caf3ab4f1044671773c3437e5 /arch/x86/kvm/ioapic.c | |
| parent | 59508b303e4e35de9dd708ec87b1e89b1f3c1616 (diff) | |
| download | linux-c96001c5702e66b64e0ffe533aa19d6567ce15bc.tar.bz2 | |
KVM: X86: Use APIC_DEST_* macros properly in kvm_lapic_irq.dest_mode
We were using either APIC_DEST_PHYSICAL|APIC_DEST_LOGICAL or 0|1 to
fill in kvm_lapic_irq.dest_mode. It's fine only because in most cases
when we check against dest_mode it's against APIC_DEST_PHYSICAL (which
equals to 0). However, that's not consistent. We'll have problem
when we want to start checking against APIC_DEST_LOGICAL, which does
not equals to 1.
This patch firstly introduces kvm_lapic_irq_dest_mode() helper to take
any boolean of destination mode and return the APIC_DEST_* macro.
Then, it replaces the 0|1 settings of irq.dest_mode with the helper.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/ioapic.c')
| -rw-r--r-- | arch/x86/kvm/ioapic.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c index 9fd2dd89a1c5..e623a4f8d27e 100644 --- a/arch/x86/kvm/ioapic.c +++ b/arch/x86/kvm/ioapic.c @@ -331,7 +331,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) irq.vector = e->fields.vector; irq.delivery_mode = e->fields.delivery_mode << 8; irq.dest_id = e->fields.dest_id; - irq.dest_mode = e->fields.dest_mode; + irq.dest_mode = + kvm_lapic_irq_dest_mode(!!e->fields.dest_mode); bitmap_zero(&vcpu_bitmap, 16); kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq, &vcpu_bitmap); @@ -343,7 +344,9 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) * keep ioapic_handled_vectors synchronized. */ irq.dest_id = old_dest_id; - irq.dest_mode = old_dest_mode; + irq.dest_mode = + kvm_lapic_irq_dest_mode( + !!e->fields.dest_mode); kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq, &vcpu_bitmap); } @@ -369,7 +372,7 @@ static int ioapic_service(struct kvm_ioapic *ioapic, int irq, bool line_status) irqe.dest_id = entry->fields.dest_id; irqe.vector = entry->fields.vector; - irqe.dest_mode = entry->fields.dest_mode; + irqe.dest_mode = kvm_lapic_irq_dest_mode(!!entry->fields.dest_mode); irqe.trig_mode = entry->fields.trig_mode; irqe.delivery_mode = entry->fields.delivery_mode << 8; irqe.level = 1; |