xnu-1699.22.73.tar.gz

[apple/xnu.git] / osfmk / i386 / ucode.h

diff --git a/osfmk/i386/ucode.h b/osfmk/i386/ucode.h
new file mode 100644 (file)
index 0000000..55dc706
--- /dev/null
+++ b/osfmk/i386/ucode.h
@@ -0,0 +1,30 @@
+/*
+ *  ucode.h
+ *
+ *  Interface definitions for the microcode updater interface sysctl
+ */
+
+/* Intel defined microcode format */
+struct intel_ucupdate {
+       /* Header information */
+       uint32_t header_version;
+       uint32_t update_revision;
+       uint32_t date;
+       uint32_t processor_signature;
+       uint32_t checksum;
+       uint32_t loader_revision;
+       uint32_t processor_flags;
+       uint32_t data_size;
+       uint32_t total_size;
+
+       /* Reserved for future expansion */
+       uint32_t reserved0;
+       uint32_t reserved1;
+       uint32_t reserved2;
+
+       /* First word of the update data */
+       uint32_t data;
+};
+
+extern int ucode_interface(uint64_t addr);
+extern void ucode_update_wake(void);