diff --git a/libc/kernel/uapi/xen/gntdev.h b/libc/kernel/uapi/xen/gntdev.h
index 44b5e8c..1e78ac3 100644
--- a/libc/kernel/uapi/xen/gntdev.h
+++ b/libc/kernel/uapi/xen/gntdev.h
@@ -73,4 +73,32 @@
 };
 #define UNMAP_NOTIFY_CLEAR_BYTE 0x1
 #define UNMAP_NOTIFY_SEND_EVENT 0x2
+#define GNTDEV_DMA_FLAG_WC (1 << 0)
+#define GNTDEV_DMA_FLAG_COHERENT (1 << 1)
+#define IOCTL_GNTDEV_DMABUF_EXP_FROM_REFS _IOC(_IOC_NONE, 'G', 9, sizeof(struct ioctl_gntdev_dmabuf_exp_from_refs))
+struct ioctl_gntdev_dmabuf_exp_from_refs {
+  __u32 flags;
+  __u32 count;
+  __u32 fd;
+  __u32 domid;
+  __u32 refs[1];
+};
+#define IOCTL_GNTDEV_DMABUF_EXP_WAIT_RELEASED _IOC(_IOC_NONE, 'G', 10, sizeof(struct ioctl_gntdev_dmabuf_exp_wait_released))
+struct ioctl_gntdev_dmabuf_exp_wait_released {
+  __u32 fd;
+  __u32 wait_to_ms;
+};
+#define IOCTL_GNTDEV_DMABUF_IMP_TO_REFS _IOC(_IOC_NONE, 'G', 11, sizeof(struct ioctl_gntdev_dmabuf_imp_to_refs))
+struct ioctl_gntdev_dmabuf_imp_to_refs {
+  __u32 fd;
+  __u32 count;
+  __u32 domid;
+  __u32 reserved;
+  __u32 refs[1];
+};
+#define IOCTL_GNTDEV_DMABUF_IMP_RELEASE _IOC(_IOC_NONE, 'G', 12, sizeof(struct ioctl_gntdev_dmabuf_imp_release))
+struct ioctl_gntdev_dmabuf_imp_release {
+  __u32 fd;
+  __u32 reserved;
+};
 #endif
diff --git a/libc/kernel/uapi/xen/privcmd.h b/libc/kernel/uapi/xen/privcmd.h
index 210a75e..145446b 100644
--- a/libc/kernel/uapi/xen/privcmd.h
+++ b/libc/kernel/uapi/xen/privcmd.h
@@ -59,10 +59,19 @@
   __u16 num;
   const struct privcmd_dm_op_buf __user * ubufs;
 };
+struct privcmd_mmap_resource {
+  domid_t dom;
+  __u32 type;
+  __u32 id;
+  __u32 idx;
+  __u64 num;
+  __u64 addr;
+};
 #define IOCTL_PRIVCMD_HYPERCALL _IOC(_IOC_NONE, 'P', 0, sizeof(struct privcmd_hypercall))
 #define IOCTL_PRIVCMD_MMAP _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap))
 #define IOCTL_PRIVCMD_MMAPBATCH _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch))
 #define IOCTL_PRIVCMD_MMAPBATCH_V2 _IOC(_IOC_NONE, 'P', 4, sizeof(struct privcmd_mmapbatch_v2))
 #define IOCTL_PRIVCMD_DM_OP _IOC(_IOC_NONE, 'P', 5, sizeof(struct privcmd_dm_op))
 #define IOCTL_PRIVCMD_RESTRICT _IOC(_IOC_NONE, 'P', 6, sizeof(domid_t))
+#define IOCTL_PRIVCMD_MMAP_RESOURCE _IOC(_IOC_NONE, 'P', 7, sizeof(struct privcmd_mmap_resource))
 #endif