seccomp: allow new ioctls for vCPU threads

We are now calling KVM_CHECK_EXTENSION for checking the
KVM_CAP_MSI_DEVID capability. We are also calling KVM_SET_GSI_ROUTING to
set the interrupts routes and KVM_IRQFD to set/unset interrupt lines.

Signed-off-by: Babis Chalios <bchalios@amazon.es>

Author: bchalios

resources/seccomp/aarch64-unknown-linux-musl.json

@@ -1017,6 +1017,49 @@
             {
                 "syscall": "restart_syscall",
                 "comment": "automatically issued by the kernel when specific timing-related syscalls (e.g. nanosleep) get interrupted by SIGSTOP"
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 44547,
+                        "comment": "KVM_CHECK_EXTENSION"
+                    },
+                    {
+                        "index": 2,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 131,
+                        "comment": "KVM_CAP_MSI_DEVID"
+                    }
+                ]
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 1074310762,
+                        "comment": "KVM_SET_GSI_ROUTING"
+                    }
+                ]
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 1075883638,
+                        "comment": "KVM_IRQFD"
+                    }
+                ]
             }
         ]
     }

resources/seccomp/x86_64-unknown-linux-musl.json

@@ -1149,6 +1149,49 @@
             {
                 "syscall": "restart_syscall",
                 "comment": "automatically issued by the kernel when specific timing-related syscalls (e.g. nanosleep) get interrupted by SIGSTOP"
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 44547,
+                        "comment": "KVM_CHECK_EXTENSION"
+                    },
+                    {
+                        "index": 2,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 131,
+                        "comment": "KVM_CAP_MSI_DEVID"
+                    }
+                ]
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 1074310762,
+                        "comment": "KVM_SET_GSI_ROUTING"
+                    }
+                ]
+            },
+            {
+                "syscall": "ioctl",
+                "args": [
+                    {
+                        "index": 1,
+                        "type": "dword",
+                        "op": "eq",
+                        "val": 1075883638,
+                        "comment": "KVM_IRQFD"
+                    }
+                ]
             }
         ]
     }