[src/trunk]: src/sys/external/bsd linux asm/vmware.h: Fill this in with hyper...

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

details:   https://anonhg.NetBSD.org/src/rev/e25cf4b6ef18
branches:  trunk
changeset: 372034:e25cf4b6ef18
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Tue Oct 25 23:39:01 2022 +0000

description:
linux asm/vmware.h: Fill this in with hypercall asm.

Not sure if it's necessary to support vmcall or vmmcall -- if so,
need to deal with binary patching inline asm, ugh.

diffstat:

 sys/external/bsd/common/include/asm/vmware.h |  57 ++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)

diffs (61 lines):

diff -r 08592513c282 -r e25cf4b6ef18 sys/external/bsd/common/include/asm/vmware.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/external/bsd/common/include/asm/vmware.h      Tue Oct 25 23:39:01 2022 +0000
@@ -0,0 +1,57 @@
+/*     $NetBSD: vmware.h,v 1.1 2022/10/25 23:39:01 riastradh Exp $     */
+
+/*-
+ * Copyright (c) 2022 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ASM_VMWARE_H_
+#define _ASM_VMWARE_H_
+
+#include <sys/cdefs.h>
+
+#if defined __i386__ || defined __x86_64__
+
+#define        VMWARE_HYPERVISOR_PORT          0x5658
+#define        VMWARE_HYPERVISOR_PORT_HB       0x5659
+
+#define        VMWARE_HYPERVISOR_HB            __BIT(0)
+#define        VMWARE_HYPERVISOR_OUT           __BIT(1)
+
+/* XXX support vmcall/vmmcall */
+#define        VMWARE_HYPERCALL                                                      \
+       "movw $"__STRING(VMWARE_HYPERVISOR_PORT)",%%dx;"                      \
+       "inl (%%dx),%%eax;"
+
+#define        VMWARE_HYPERCALL_HB_OUT                                               \
+       "movw $"__STRING(VMWARE_HYPERVISOR_PORT_HB)",%%dx;"                   \
+       "rep outsb;"
+
+#define        VMWARE_HYPERCALL_HB_IN                                                \
+       "movw $"__STRING(VMWARE_HYPERVISOR_PORT_HB)",%%dx;"                   \
+       "rep insb;"
+
+#endif
+
+#endif  /* _ASM_BARRIER_H_ */