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| author | Peter Xu <peterx@redhat.com> | 2018-12-20 13:40:36 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-12-20 13:25:11 -0500 |
| commit | a924b3d8df55a395891fd5ed341d0deb135d9aa6 (patch) | |
| tree | e6ba485ec8d04620f890c5402a44d8a16caddc0e /hw/i386/x86-iommu.c | |
| parent | b2fc91db84470a78f8e93f5b5f913c17188792c8 (diff) | |
| download | qemu-a924b3d8df55a395891fd5ed341d0deb135d9aa6.zip qemu-a924b3d8df55a395891fd5ed341d0deb135d9aa6.tar.gz qemu-a924b3d8df55a395891fd5ed341d0deb135d9aa6.tar.bz2 | |
x86-iommu: switch intr_supported to OnOffAuto type
Switch the intr_supported variable from a boolean to OnOffAuto type so
that we can know whether the user specified it or not. With that
we'll have a chance to help the user to choose more wisely where
possible. Introduce x86_iommu_ir_supported() to mask these changes.
No functional change at all.
Signed-off-by: Peter Xu <peterx@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/x86-iommu.c')
| -rw-r--r-- | hw/i386/x86-iommu.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/hw/i386/x86-iommu.c b/hw/i386/x86-iommu.c index abc3c03..61ee0f1 100644 --- a/hw/i386/x86-iommu.c +++ b/hw/i386/x86-iommu.c @@ -119,8 +119,13 @@ static void x86_iommu_realize(DeviceState *dev, Error **errp) return; } + /* If the user didn't specify IR, choose a default value for it */ + if (x86_iommu->intr_supported == ON_OFF_AUTO_AUTO) { + x86_iommu->intr_supported = ON_OFF_AUTO_OFF; + } + /* Both Intel and AMD IOMMU IR only support "kernel-irqchip={off|split}" */ - if (x86_iommu->intr_supported && kvm_irqchip_in_kernel() && + if (x86_iommu_ir_supported(x86_iommu) && kvm_irqchip_in_kernel() && !kvm_irqchip_is_split()) { error_setg(errp, "Interrupt Remapping cannot work with " "kernel-irqchip=on, please use 'split|off'."); @@ -135,7 +140,8 @@ static void x86_iommu_realize(DeviceState *dev, Error **errp) } static Property x86_iommu_properties[] = { - DEFINE_PROP_BOOL("intremap", X86IOMMUState, intr_supported, false), + DEFINE_PROP_ON_OFF_AUTO("intremap", X86IOMMUState, + intr_supported, ON_OFF_AUTO_AUTO), DEFINE_PROP_BOOL("device-iotlb", X86IOMMUState, dt_supported, false), DEFINE_PROP_BOOL("pt", X86IOMMUState, pt_supported, true), DEFINE_PROP_END_OF_LIST(), @@ -148,6 +154,11 @@ static void x86_iommu_class_init(ObjectClass *klass, void *data) dc->props = x86_iommu_properties; } +bool x86_iommu_ir_supported(X86IOMMUState *s) +{ + return s->intr_supported == ON_OFF_AUTO_ON; +} + static const TypeInfo x86_iommu_info = { .name = TYPE_X86_IOMMU_DEVICE, .parent = TYPE_SYS_BUS_DEVICE, |