lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: bit ops for deliver_bitmap

Browse Source 
It's also convenient when we extend KVM supported vcpu number in the future.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Sheng Yang
2009-02-11 16:03:40 +08:00
committed by Avi Kivity
parent 110c2faeba
commit bfd349d073
3 changed files with 26 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/x86/kvm/lapic.c
View File

@@ -483,9 +483,10 @@ static void apic_send_ipi(struct kvm_lapic *apic)
struct kvm_vcpu *target;
struct kvm_vcpu *vcpu;
unsigned long lpr_map = 0;
DECLARE_BITMAP(lpr_map, KVM_MAX_VCPUS);
int i;
bitmap_zero(lpr_map, KVM_MAX_VCPUS);
apic_debug("icr_high 0x%x, icr_low 0x%x, "
"short_hand 0x%x, dest 0x%x, trig_mode 0x%x, level 0x%x, "
"dest_mode 0x%x, delivery_mode 0x%x, vector 0x%x\n",
@@ -500,7 +501,7 @@ static void apic_send_ipi(struct kvm_lapic *apic)
if (vcpu->arch.apic &&
apic_match_dest(vcpu, apic, short_hand, dest, dest_mode)) {
if (delivery_mode == APIC_DM_LOWEST)
set_bit(vcpu->vcpu_id, &lpr_map);
__set_bit(vcpu->vcpu_id, lpr_map);
else
__apic_accept_irq(vcpu->arch.apic, delivery_mode,
vector, level, trig_mode);
@@ -508,7 +509,7 @@ static void apic_send_ipi(struct kvm_lapic *apic)
}
if (delivery_mode == APIC_DM_LOWEST) {
target = kvm_get_lowest_prio_vcpu(vcpu->kvm, vector, &lpr_map);
target = kvm_get_lowest_prio_vcpu(vcpu->kvm, vector, lpr_map);
if (target != NULL)
__apic_accept_irq(target->arch.apic, delivery_mode,
vector, level, trig_mode);