From: Suravee Suthikulpanit Date: Tue, 7 Apr 2020 06:13:09 +0000 (-0500) Subject: KVM: x86: Fixes posted interrupt check for IRQs delivery modes X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=637543a8d61c6afe4e9be64bfb43c78701a83375;p=linux.git KVM: x86: Fixes posted interrupt check for IRQs delivery modes Current logic incorrectly uses the enum ioapic_irq_destination_types to check the posted interrupt destination types. However, the value was set using APIC_DM_XXX macros, which are left-shifted by 8 bits. Fixes by using the APIC_DM_FIXED and APIC_DM_LOWEST instead. Fixes: (fdcf75621375 'KVM: x86: Disable posted interrupts for non-standard IRQs delivery modes') Cc: Alexander Graf Signed-off-by: Suravee Suthikulpanit Message-Id: <1586239989-58305-1-git-send-email-suravee.suthikulpanit@amd.com> Reviewed-by: Maxim Levitsky Tested-by: Maxim Levitsky Signed-off-by: Paolo Bonzini --- diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 42a2d0d3984ab..0dea9f122bb9c 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1663,8 +1663,8 @@ void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e, static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq) { /* We can only post Fixed and LowPrio IRQs */ - return (irq->delivery_mode == dest_Fixed || - irq->delivery_mode == dest_LowestPrio); + return (irq->delivery_mode == APIC_DM_FIXED || + irq->delivery_mode == APIC_DM_LOWEST); } static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)