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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [linux-2.6.18-xen] Add 32-bit privcmd ioctl conversion for 64-bit kernels.
# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1183739753 -3600
# Node ID e5f633c330254ac744c3e7447c156f63ad453363
# Parent 22c388bfd719d291482f81859e12f29aefc96a98
Add 32-bit privcmd ioctl conversion for 64-bit kernels.
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
---
drivers/xen/Makefile | 2
drivers/xen/privcmd/Makefile | 3 -
drivers/xen/privcmd/compat_privcmd.c | 73 +++++++++++++++++++++++++++++++++++
fs/compat_ioctl.c | 17 ++++++++
include/xen/compat_ioctl.h | 45 +++++++++++++++++++++
5 files changed, 138 insertions(+), 2 deletions(-)
diff -r 22c388bfd719 -r e5f633c33025 drivers/xen/Makefile
--- a/drivers/xen/Makefile Fri Jul 06 17:33:03 2007 +0100
+++ b/drivers/xen/Makefile Fri Jul 06 17:35:53 2007 +0100
@@ -1,7 +1,6 @@ obj-y += core/
obj-y += core/
obj-y += console/
obj-y += evtchn/
-obj-y += privcmd/
obj-y += xenbus/
obj-y += gntdev/
obj-y += char/
@@ -18,3 +17,4 @@ obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += pci
obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += pcifront/
obj-$(CONFIG_XEN_FRAMEBUFFER) += fbfront/
obj-$(CONFIG_XEN_KEYBOARD) += fbfront/
+obj-$(CONFIG_XEN_PRIVCMD) += privcmd/
diff -r 22c388bfd719 -r e5f633c33025 drivers/xen/privcmd/Makefile
--- a/drivers/xen/privcmd/Makefile Fri Jul 06 17:33:03 2007 +0100
+++ b/drivers/xen/privcmd/Makefile Fri Jul 06 17:35:53 2007 +0100
@@ -1,2 +1,3 @@
-obj-$(CONFIG_XEN_PRIVCMD) := privcmd.o
+obj-y += privcmd.o
+obj-$(CONFIG_COMPAT) += compat_privcmd.o
diff -r 22c388bfd719 -r e5f633c33025 drivers/xen/privcmd/compat_privcmd.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/drivers/xen/privcmd/compat_privcmd.c Fri Jul 06 17:35:53 2007 +0100
@@ -0,0 +1,73 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Copyright (C) IBM Corp. 2006
+ *
+ * Authors: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
+ */
+
+#include <linux/config.h>
+#include <linux/compat.h>
+#include <linux/ioctl.h>
+#include <linux/syscalls.h>
+#include <asm/hypervisor.h>
+#include <asm/uaccess.h>
+#include <xen/public/privcmd.h>
+#include <xen/compat_ioctl.h>
+
+int privcmd_ioctl_32(int fd, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ switch (cmd) {
+ case IOCTL_PRIVCMD_MMAP_32: {
+ struct privcmd_mmap *p;
+ struct privcmd_mmap_32 *p32;
+ struct privcmd_mmap_32 n32;
+
+ p32 = compat_ptr(arg);
+ p = compat_alloc_user_space(sizeof(*p));
+ if (copy_from_user(&n32, p32, sizeof(n32)) ||
+ put_user(n32.num, &p->num) ||
+ put_user(n32.dom, &p->dom) ||
+ put_user(compat_ptr(n32.entry), &p->entry))
+ return -EFAULT;
+
+ ret = sys_ioctl(fd, IOCTL_PRIVCMD_MMAP, (unsigned long)p);
+ }
+ break;
+ case IOCTL_PRIVCMD_MMAPBATCH_32: {
+ struct privcmd_mmapbatch *p;
+ struct privcmd_mmapbatch_32 *p32;
+ struct privcmd_mmapbatch_32 n32;
+
+ p32 = compat_ptr(arg);
+ p = compat_alloc_user_space(sizeof(*p));
+ if (copy_from_user(&n32, p32, sizeof(n32)) ||
+ put_user(n32.num, &p->num) ||
+ put_user(n32.dom, &p->dom) ||
+ put_user(n32.addr, &p->addr) ||
+ put_user(compat_ptr(n32.arr), &p->arr))
+ return -EFAULT;
+
+ ret = sys_ioctl(fd, IOCTL_PRIVCMD_MMAPBATCH, (unsigned long)p);
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
diff -r 22c388bfd719 -r e5f633c33025 fs/compat_ioctl.c
--- a/fs/compat_ioctl.c Fri Jul 06 17:33:03 2007 +0100
+++ b/fs/compat_ioctl.c Fri Jul 06 17:35:53 2007 +0100
@@ -123,6 +123,11 @@
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#include <linux/lp.h>
+
+#include <xen/interface/xen.h>
+#include <xen/public/evtchn.h>
+#include <xen/public/privcmd.h>
+#include <xen/compat_ioctl.h>
/* Aiee. Someone does not find a difference between int and long */
#define EXT2_IOC32_GETFLAGS _IOR('f', 1, int)
@@ -2948,6 +2953,18 @@ COMPATIBLE_IOCTL(LPRESET)
/*LPGETSTATS not implemented, but no kernels seem to compile it in anyways*/
COMPATIBLE_IOCTL(LPGETFLAGS)
HANDLE_IOCTL(LPSETTIMEOUT, lp_timeout_trans)
+
+#ifdef CONFIG_XEN
+HANDLE_IOCTL(IOCTL_PRIVCMD_MMAP_32, privcmd_ioctl_32)
+HANDLE_IOCTL(IOCTL_PRIVCMD_MMAPBATCH_32, privcmd_ioctl_32)
+COMPATIBLE_IOCTL(IOCTL_PRIVCMD_HYPERCALL)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_BIND_VIRQ)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_BIND_INTERDOMAIN)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_BIND_UNBOUND_PORT)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_UNBIND)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_NOTIFY)
+COMPATIBLE_IOCTL(IOCTL_EVTCHN_RESET)
+#endif
};
int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff -r 22c388bfd719 -r e5f633c33025 include/xen/compat_ioctl.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/xen/compat_ioctl.h Fri Jul 06 17:35:53 2007 +0100
@@ -0,0 +1,45 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Copyright IBM Corp. 2007
+ *
+ * Authors: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
+ * Hollis Blanchard <hollisb@xxxxxxxxxx>
+ */
+
+#ifndef __LINUX_XEN_COMPAT_H__
+#define __LINUX_XEN_COMPAT_H__
+
+#include <linux/compat.h>
+
+extern int privcmd_ioctl_32(int fd, unsigned int cmd, unsigned long arg);
+struct privcmd_mmap_32 {
+ int num;
+ domid_t dom;
+ compat_uptr_t entry;
+};
+
+struct privcmd_mmapbatch_32 {
+ int num; /* number of pages to populate */
+ domid_t dom; /* target domain */
+ __u64 addr; /* virtual address */
+ compat_uptr_t arr; /* array of mfns - top nibble set on err */
+};
+#define IOCTL_PRIVCMD_MMAP_32 \
+ _IOC(_IOC_NONE, 'P', 2, sizeof(struct privcmd_mmap_32))
+#define IOCTL_PRIVCMD_MMAPBATCH_32 \
+ _IOC(_IOC_NONE, 'P', 3, sizeof(struct privcmd_mmapbatch_32))
+
+#endif /* __LINUX_XEN_COMPAT_H__ */
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