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-rw-r--r--sys/linux/test/amd64-syz_kvm_set_irq_handler31
1 files changed, 31 insertions, 0 deletions
diff --git a/sys/linux/test/amd64-syz_kvm_set_irq_handler b/sys/linux/test/amd64-syz_kvm_set_irq_handler
new file mode 100644
index 000000000..ad2c9479a
--- /dev/null
+++ b/sys/linux/test/amd64-syz_kvm_set_irq_handler
@@ -0,0 +1,31 @@
+#
+# requires: arch=amd64 -threaded
+#
+r0 = openat$kvm(0, &AUTO='/dev/kvm\x00', 0x0, 0x0)
+r1 = ioctl$KVM_CREATE_VM(r0, AUTO, 0x0)
+r2 = syz_kvm_setup_syzos_vm$x86(r1, &(0x7f0000c00000/0x400000)=nil)
+#
+# Set a non-dummy IRQ handler for vector 0x80.
+#
+r3 = syz_kvm_add_vcpu$x86(r2, &AUTO={0x0, &AUTO=[@set_irq_handler={AUTO, AUTO, {0x80, 0x2}}, @uexit={AUTO, AUTO, 0xaaaa}], AUTO})
+r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO)
+r5 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x1, r3, 0x0)
+
+# Run till uexit(0xaaaa).
+#
+ioctl$KVM_RUN(r3, AUTO, 0x0)
+syz_kvm_assert_syzos_uexit$x86(r5, 0xaaaa)
+
+# Inject interrupt 0x80.
+#
+ioctl$KVM_INTERRUPT(r3, AUTO, &AUTO=0x80)
+ioctl$KVM_RUN(r3, AUTO, 0x0)
+
+# Ensure that the uexit code is UEXIT_IRQ.
+#
+syz_kvm_assert_syzos_uexit$x86(r5, 0xfffffffffffffffe)
+
+# Run till the end.
+#
+ioctl$KVM_RUN(r3, AUTO, 0x0)
+syz_kvm_assert_syzos_uexit$x86(r5, 0xffffffffffffffff)