From 1c5de1939c204bde9cce87f4eb3d26e9f9eb732b Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 9 Feb 2009 12:05:49 -0800 Subject: xen: add privcmd driver The privcmd interface in xenfs allows the tool stack in the privileged domain to get fairly direct access to the hypervisor in order to do various management things such as domain construction. [ Impact: new xenfs interface for privileged operations ] Signed-off-by: Jeremy Fitzhardinge --- include/xen/privcmd.h | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 include/xen/privcmd.h (limited to 'include/xen/privcmd.h') diff --git a/include/xen/privcmd.h b/include/xen/privcmd.h new file mode 100644 index 000000000000..b42cdfd92fee --- /dev/null +++ b/include/xen/privcmd.h @@ -0,0 +1,80 @@ +/****************************************************************************** + * privcmd.h + * + * Interface to /proc/xen/privcmd. + * + * Copyright (c) 2003-2005, K A Fraser + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __LINUX_PUBLIC_PRIVCMD_H__ +#define __LINUX_PUBLIC_PRIVCMD_H__ + +#include + +typedef unsigned long xen_pfn_t; + +#ifndef __user +#define __user +#endif + +struct privcmd_hypercall { + __u64 op; + __u64 arg[5]; +}; + +struct privcmd_mmap_entry { + __u64 va; + __u64 mfn; + __u64 npages; +}; + +struct privcmd_mmap { + int num; + domid_t dom; /* target domain */ + struct privcmd_mmap_entry __user *entry; +}; + +struct privcmd_mmapbatch { + int num; /* number of pages to populate */ + domid_t dom; /* target domain */ + __u64 addr; /* virtual address */ + xen_pfn_t __user *arr; /* array of mfns - top nibble set on err */ +}; + +/* + * @cmd: IOCTL_PRIVCMD_HYPERCALL + * @arg: &privcmd_hypercall_t + * Return: Value returned from execution of the specified hypercall. + */ +#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)) + +#endif /* __LINUX_PUBLIC_PRIVCMD_H__ */ -- cgit v1.2.2 From 744f9f104ea262de1dc3e29265870c649f0d9473 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 13 Nov 2010 11:44:39 -0500 Subject: xen: fix header export to userspace scripts/headers_install.pl prevents "__user" from being exported to userspace headers, so just use compiler.h to make sure that __user is defined and avoid the error. unifdef: linux-next-20101112/xx64/usr/include/xen/privcmd.h.tmp: 79: Premature EOF (#if line 33 depth 1) Signed-off-by: Randy Dunlap Cc: Jeremy Fitzhardinge Cc: Konrad Rzeszutek Wilk Cc: xen-devel@lists.xensource.com (moderated for non-subscribers) Cc: virtualization@lists.osdl.org Cc: Tony Finch Signed-off-by: Jeremy Fitzhardinge --- include/xen/privcmd.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/xen/privcmd.h') diff --git a/include/xen/privcmd.h b/include/xen/privcmd.h index b42cdfd92fee..17857fb4d550 100644 --- a/include/xen/privcmd.h +++ b/include/xen/privcmd.h @@ -34,13 +34,10 @@ #define __LINUX_PUBLIC_PRIVCMD_H__ #include +#include typedef unsigned long xen_pfn_t; -#ifndef __user -#define __user -#endif - struct privcmd_hypercall { __u64 op; __u64 arg[5]; -- cgit v1.2.2