Add a module param, enable_device_posted_irqs, to control and enumerate KVM support for device posted IRQs. v2: - Add prep patches to use kvm_arch_has_irq_bypass() in vendor code when querying support IRQ bypass, a.k.a. device posted IRQs, so as not to unexpectedly introduce a (desired) dependency on enable_apicv. [Yosry] - Use "&=" when constraining enable_device_posted_irqs based on APICv and IOMMU posting support. [Yosry] v1: https://lore.kernel.org/all/20250315025615.2367411-1-seanjc@xxxxxxxxxx Sean Christopherson (3): KVM: VMX: Don't send UNBLOCK when starting device assignment without APICv KVM: SVM: Don't update IRTEs if APICv/AVIC is disable KVM: x86: Add a module param to control and enumerate device posted IRQs arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/svm/avic.c | 3 +-- arch/x86/kvm/vmx/posted_intr.c | 7 +++---- arch/x86/kvm/x86.c | 10 +++++++++- 4 files changed, 14 insertions(+), 7 deletions(-) base-commit: c9ea48bb6ee6b28bbc956c1e8af98044618fed5e -- 2.49.0.395.g12beb8f557-goog
