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Revert "x86/kvm: fix vcpu-id indexed array sizes"

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This reverts commit 76b4f357d0.

The commit has the wrong reasoning, as KVM_MAX_VCPU_ID is not defining the
maximum allowed vcpu-id as its name suggests, but the number of vcpu-ids.
So revert this patch again.

Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210913135745.13944-2-jgross@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Juergen Gross 2021-09-13 15:57:43 +02:00 committed by Paolo Bonzini
parent 620b2438ab
commit 1e254d0d86
2 changed files with 3 additions and 3 deletions
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2
arch/x86/kvm/ioapic.c
View File

@ -96,7 +96,7 @@ static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic,
static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic) static void rtc_irq_eoi_tracking_reset(struct kvm_ioapic *ioapic)
{ {
ioapic->rtc_status.pending_eoi = 0; ioapic->rtc_status.pending_eoi = 0;
bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID + 1); bitmap_zero(ioapic->rtc_status.dest_map.map, KVM_MAX_VCPU_ID);
} }
static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic); static void kvm_rtc_eoi_tracking_restore_all(struct kvm_ioapic *ioapic);

4
arch/x86/kvm/ioapic.h
View File

@ -39,13 +39,13 @@ struct kvm_vcpu;
struct dest_map { struct dest_map {
/* vcpu bitmap where IRQ has been sent */ /* vcpu bitmap where IRQ has been sent */
DECLARE_BITMAP(map, KVM_MAX_VCPU_ID + 1); DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);
/* /*
* Vector sent to a given vcpu, only valid when * Vector sent to a given vcpu, only valid when
* the vcpu's bit in map is set * the vcpu's bit in map is set
*/ */
u8 vectors[KVM_MAX_VCPU_ID + 1]; u8 vectors[KVM_MAX_VCPU_ID];
}; };