From cc5e719e2c8086c61bdd9114f42095f8d5b1b0db Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 17 Oct 2023 13:24:33 +0200 Subject: kvm: require KVM_CAP_SIGNAL_MSI This was introduced in KVM in Linux 3.5, we can require it unconditionally in kvm_irqchip_send_msi(). However, not all architectures have to implement it so check it only in x86, the only architecture that ever had MSI injection but not KVM_CAP_SIGNAL_MSI. ARM uses it to detect the presence of the ITS emulation in the kernel, introduced in Linux 4.8. Assume that it's there and possibly fail when realizing the arm-its-kvm device. Signed-off-by: Paolo Bonzini --- hw/intc/arm_gicv3_its_common.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'hw/intc') diff --git a/hw/intc/arm_gicv3_its_common.c b/hw/intc/arm_gicv3_its_common.c index abaf77057e..fddd6d490c 100644 --- a/hw/intc/arm_gicv3_its_common.c +++ b/hw/intc/arm_gicv3_its_common.c @@ -163,8 +163,7 @@ type_init(gicv3_its_common_register_types) const char *its_class_name(void) { if (kvm_irqchip_in_kernel()) { - /* KVM implementation requires this capability */ - return kvm_direct_msi_enabled() ? "arm-its-kvm" : NULL; + return "arm-its-kvm"; } else { /* Software emulation based model */ return "arm-gicv3-its"; -- cgit 1.4.1