[src/trunk]: src/sys/sys Add definitions so that the i386 cpuctl can issue IO...

[dsl <dsl%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/98f08e9e3033
branches:  trunk
changeset: 783714:98f08e9e3033
user:      dsl <dsl%NetBSD.org@localhost>
date:      Sat Jan 05 16:36:38 2013 +0000

description:
Add definitions so that the i386 cpuctl can issue IOC_CPU_UCODE_GET_VERSION
on amd64 kernels.
XXX This ioctl is horrid - writes into an unsized userspace buffer.

diffstat:

 sys/sys/cpuio.h |  16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diffs (37 lines):

diff -r dd834f1c0e2f -r 98f08e9e3033 sys/sys/cpuio.h
--- a/sys/sys/cpuio.h   Sat Jan 05 16:34:43 2013 +0000
+++ b/sys/sys/cpuio.h   Sat Jan 05 16:36:38 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpuio.h,v 1.8 2012/08/29 17:13:22 drochner Exp $       */
+/*     $NetBSD: cpuio.h,v 1.9 2013/01/05 16:36:38 dsl Exp $    */
 
 /*-
  * Copyright (c) 2007, 2009, 2012 The NetBSD Foundation, Inc.
@@ -69,6 +69,19 @@
        void *data;             /* OUT: CPU ID data */
 };
 
+#define IOC_CPU_UCODE_GET_VERSION      _IOWR('c', 6, struct cpu_ucode_version)
+
+#ifdef __i386__
+/* In order to read the info from an amd64 kernel we need ... */
+struct cpu_ucode_version_64 {
+       int loader_version;     /* IN: md version number */
+       int pad1;
+       void *data;             /* OUT: CPU ID data */
+       int must_be_zero;
+};
+#define IOC_CPU_UCODE_GET_VERSION_64   _IOWR('c', 6, struct cpu_ucode_version_64)
+#endif
+
 struct cpu_ucode {
        int loader_version;     /* md version number */
        int cpu_nr;             /* CPU index or special value below */
@@ -77,7 +90,6 @@
        char fwname[PATH_MAX];
 };
 
-#define IOC_CPU_UCODE_GET_VERSION      _IOWR('c', 6, struct cpu_ucode_version)
 #define IOC_CPU_UCODE_APPLY            _IOW('c', 7, struct cpu_ucode)
 
 #endif /* !_SYS_CPUIO_H_ */