Merge tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from David Vrabel:
"Features and fixes for 4.6:
- Make earlyprintk=xen work for HVM guests
- Remove module support for things never built as modules"
* tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drivers/xen: make platform-pci.c explicitly non-modular
drivers/xen: make sys-hypervisor.c explicitly non-modular
drivers/xen: make xenbus_dev_[front/back]end explicitly non-modular
drivers/xen: make [xen-]ballon explicitly non-modular
xen: audit usages of module.h ; remove unnecessary instances
xen/x86: Drop mode-selecting ifdefs in startup_xen()
xen/x86: Zero out .bss for PV guests
hvc_xen: make early_printk work with HVM guests
hvc_xen: fix xenboot for DomUs
hvc_xen: add earlycon support
diff --git a/arch/arm/include/asm/xen/hypercall.h b/arch/arm/include/asm/xen/hypercall.h
index d769972..b6b962d 100644
--- a/arch/arm/include/asm/xen/hypercall.h
+++ b/arch/arm/include/asm/xen/hypercall.h
@@ -33,6 +33,8 @@
#ifndef _ASM_ARM_XEN_HYPERCALL_H
#define _ASM_ARM_XEN_HYPERCALL_H
+#include <linux/bug.h>
+
#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
#include <xen/interface/platform.h>
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index b65f59a..de93b20 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -38,13 +38,18 @@
__INIT
ENTRY(startup_xen)
cld
-#ifdef CONFIG_X86_32
- mov %esi,xen_start_info
- mov $init_thread_union+THREAD_SIZE,%esp
-#else
- mov %rsi,xen_start_info
- mov $init_thread_union+THREAD_SIZE,%rsp
-#endif
+
+ /* Clear .bss */
+ xor %eax,%eax
+ mov $__bss_start, %_ASM_DI
+ mov $__bss_stop, %_ASM_CX
+ sub %_ASM_DI, %_ASM_CX
+ shr $__ASM_SEL(2, 3), %_ASM_CX
+ rep __ASM_SIZE(stos)
+
+ mov %_ASM_SI, xen_start_info
+ mov $init_thread_union+THREAD_SIZE, %_ASM_SP
+
jmp xen_start_kernel
__FINIT
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index f417fa1..5e87e48 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -25,6 +25,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/list.h>
+#include <linux/serial_core.h>
#include <asm/io.h>
#include <asm/xen/hypervisor.h>
@@ -245,6 +246,18 @@
return -ENODEV;
}
+static int xencons_info_pv_init(struct xencons_info *info, int vtermno)
+{
+ info->evtchn = xen_start_info->console.domU.evtchn;
+ /* GFN == MFN for PV guest */
+ info->intf = gfn_to_virt(xen_start_info->console.domU.mfn);
+ info->vtermno = vtermno;
+
+ list_add_tail(&info->list, &xenconsoles);
+
+ return 0;
+}
+
static int xen_pv_console_init(void)
{
struct xencons_info *info;
@@ -264,13 +277,8 @@
/* already configured */
return 0;
}
- info->evtchn = xen_start_info->console.domU.evtchn;
- /* GFN == MFN for PV guest */
- info->intf = gfn_to_virt(xen_start_info->console.domU.mfn);
- info->vtermno = HVC_COOKIE;
-
spin_lock(&xencons_lock);
- list_add_tail(&info->list, &xenconsoles);
+ xencons_info_pv_init(info, HVC_COOKIE);
spin_unlock(&xencons_lock);
return 0;
@@ -597,15 +605,39 @@
}
console_initcall(xen_cons_init);
+#ifdef CONFIG_X86
+static void xen_hvm_early_write(uint32_t vtermno, const char *str, int len)
+{
+ if (xen_cpuid_base())
+ outsb(0xe9, str, len);
+}
+#else
+static void xen_hvm_early_write(uint32_t vtermno, const char *str, int len) { }
+#endif
+
#ifdef CONFIG_EARLY_PRINTK
+static int __init xenboot_setup_console(struct console *console, char *string)
+{
+ static struct xencons_info xenboot;
+
+ if (xen_initial_domain())
+ return 0;
+ if (!xen_pv_domain())
+ return -ENODEV;
+
+ return xencons_info_pv_init(&xenboot, 0);
+}
+
static void xenboot_write_console(struct console *console, const char *string,
unsigned len)
{
unsigned int linelen, off = 0;
const char *pos;
- if (!xen_pv_domain())
+ if (!xen_pv_domain()) {
+ xen_hvm_early_write(0, string, len);
return;
+ }
dom0_write_console(0, string, len);
@@ -628,6 +660,7 @@
struct console xenboot_console = {
.name = "xenboot",
.write = xenboot_write_console,
+ .setup = xenboot_setup_console,
.flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
.index = -1,
};
@@ -640,17 +673,10 @@
if (xen_domain()) {
rc = dom0_write_console(0, str, len);
-#ifdef CONFIG_X86
- if (rc == -ENOSYS && xen_hvm_domain())
- goto outb_print;
-
- } else if (xen_cpuid_base()) {
- int i;
-outb_print:
- for (i = 0; i < len; i++)
- outb(str[i], 0xe9);
-#endif
+ if (rc != -ENOSYS || !xen_hvm_domain())
+ return;
}
+ xen_hvm_early_write(0, str, len);
}
void xen_raw_printk(const char *fmt, ...)
@@ -664,3 +690,18 @@
xen_raw_console_write(buf);
}
+
+static void xenboot_earlycon_write(struct console *console,
+ const char *string,
+ unsigned len)
+{
+ dom0_write_console(0, string, len);
+}
+
+static int __init xenboot_earlycon_setup(struct earlycon_device *device,
+ const char *opt)
+{
+ device->con->write = xenboot_earlycon_write;
+ return 0;
+}
+EARLYCON_DECLARE(xenboot, xenboot_earlycon_setup);
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 7c8a2cf..9781e0d 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -42,7 +42,6 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
-#include <linux/module.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/pagemap.h>
@@ -760,7 +759,4 @@
return 0;
}
-
subsys_initcall(balloon_init);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c
index 403fe39..bdff010 100644
--- a/drivers/xen/events/events_2l.c
+++ b/drivers/xen/events/events_2l.c
@@ -9,7 +9,6 @@
#include <linux/linkage.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <linux/module.h>
#include <asm/sync_bitops.h>
#include <asm/xen/hypercall.h>
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 524c221..488017a 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -26,7 +26,7 @@
#include <linux/linkage.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/string.h>
#include <linux/bootmem.h>
#include <linux/slab.h>
diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c
index eff2b88..9289a17 100644
--- a/drivers/xen/events/events_fifo.c
+++ b/drivers/xen/events/events_fifo.c
@@ -36,7 +36,6 @@
#include <linux/linkage.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
-#include <linux/module.h>
#include <linux/smp.h>
#include <linux/percpu.h>
#include <linux/cpu.h>
diff --git a/drivers/xen/features.c b/drivers/xen/features.c
index 99eda16..d7d34fd 100644
--- a/drivers/xen/features.c
+++ b/drivers/xen/features.c
@@ -7,7 +7,7 @@
*/
#include <linux/types.h>
#include <linux/cache.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <asm/xen/hypercall.h>
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index effbaf9..bb36b1e 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -33,7 +33,6 @@
#define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
-#include <linux/module.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 3454973..cf96666 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -2,6 +2,9 @@
* platform-pci.c
*
* Xen platform PCI device driver
+ *
+ * Authors: ssmith@xensource.com and stefano.stabellini@eu.citrix.com
+ *
* Copyright (c) 2005, Intel Corporation.
* Copyright (c) 2007, XenSource Inc.
* Copyright (c) 2010, Citrix
@@ -24,7 +27,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/pci.h>
#include <xen/platform_pci.h>
@@ -36,10 +39,6 @@
#define DRV_NAME "xen-platform-pci"
-MODULE_AUTHOR("ssmith@xensource.com and stefano.stabellini@eu.citrix.com");
-MODULE_DESCRIPTION("Xen platform PCI device");
-MODULE_LICENSE("GPL");
-
static unsigned long platform_mmio;
static unsigned long platform_mmio_alloc;
static unsigned long platform_mmiolen;
@@ -101,8 +100,8 @@
return 0;
}
-static int platform_pci_init(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static int platform_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
int i, ret;
long ioaddr;
@@ -181,20 +180,17 @@
{0,}
};
-MODULE_DEVICE_TABLE(pci, platform_pci_tbl);
-
static struct pci_driver platform_driver = {
.name = DRV_NAME,
- .probe = platform_pci_init,
+ .probe = platform_pci_probe,
.id_table = platform_pci_tbl,
#ifdef CONFIG_PM
.resume_early = platform_pci_resume,
#endif
};
-static int __init platform_pci_module_init(void)
+static int __init platform_pci_init(void)
{
return pci_register_driver(&platform_driver);
}
-
-module_init(platform_pci_module_init);
+device_initcall(platform_pci_init);
diff --git a/drivers/xen/sys-hypervisor.c b/drivers/xen/sys-hypervisor.c
index b5a7342..6881b3c 100644
--- a/drivers/xen/sys-hypervisor.c
+++ b/drivers/xen/sys-hypervisor.c
@@ -9,7 +9,7 @@
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/kobject.h>
#include <linux/err.h>
@@ -50,11 +50,6 @@
return sysfs_create_file(hypervisor_kobj, &type_attr.attr);
}
-static void xen_sysfs_type_destroy(void)
-{
- sysfs_remove_file(hypervisor_kobj, &type_attr.attr);
-}
-
/* xen version attributes */
static ssize_t major_show(struct hyp_sysfs_attr *attr, char *buffer)
{
@@ -111,11 +106,6 @@
return sysfs_create_group(hypervisor_kobj, &version_group);
}
-static void xen_sysfs_version_destroy(void)
-{
- sysfs_remove_group(hypervisor_kobj, &version_group);
-}
-
/* UUID */
static ssize_t uuid_show_fallback(struct hyp_sysfs_attr *attr, char *buffer)
@@ -157,11 +147,6 @@
return sysfs_create_file(hypervisor_kobj, &uuid_attr.attr);
}
-static void xen_sysfs_uuid_destroy(void)
-{
- sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr);
-}
-
/* xen compilation attributes */
static ssize_t compiler_show(struct hyp_sysfs_attr *attr, char *buffer)
@@ -235,11 +220,6 @@
return sysfs_create_group(hypervisor_kobj, &xen_compilation_group);
}
-static void xen_compilation_destroy(void)
-{
- sysfs_remove_group(hypervisor_kobj, &xen_compilation_group);
-}
-
/* xen properties info */
static ssize_t capabilities_show(struct hyp_sysfs_attr *attr, char *buffer)
@@ -366,11 +346,6 @@
return sysfs_create_group(hypervisor_kobj, &xen_properties_group);
}
-static void xen_properties_destroy(void)
-{
- sysfs_remove_group(hypervisor_kobj, &xen_properties_group);
-}
-
#ifdef CONFIG_XEN_HAVE_VPMU
struct pmu_mode {
const char *name;
@@ -484,11 +459,6 @@
{
return sysfs_create_group(hypervisor_kobj, &xen_pmu_group);
}
-
-static void xen_pmu_destroy(void)
-{
- sysfs_remove_group(hypervisor_kobj, &xen_pmu_group);
-}
#endif
static int __init hyper_sysfs_init(void)
@@ -517,7 +487,8 @@
if (xen_initial_domain()) {
ret = xen_pmu_init();
if (ret) {
- xen_properties_destroy();
+ sysfs_remove_group(hypervisor_kobj,
+ &xen_properties_group);
goto prop_out;
}
}
@@ -525,31 +496,17 @@
goto out;
prop_out:
- xen_sysfs_uuid_destroy();
+ sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr);
uuid_out:
- xen_compilation_destroy();
+ sysfs_remove_group(hypervisor_kobj, &xen_compilation_group);
comp_out:
- xen_sysfs_version_destroy();
+ sysfs_remove_group(hypervisor_kobj, &version_group);
version_out:
- xen_sysfs_type_destroy();
+ sysfs_remove_file(hypervisor_kobj, &type_attr.attr);
out:
return ret;
}
-
-static void __exit hyper_sysfs_exit(void)
-{
-#ifdef CONFIG_XEN_HAVE_VPMU
- xen_pmu_destroy();
-#endif
- xen_properties_destroy();
- xen_compilation_destroy();
- xen_sysfs_uuid_destroy();
- xen_sysfs_version_destroy();
- xen_sysfs_type_destroy();
-
-}
-module_init(hyper_sysfs_init);
-module_exit(hyper_sysfs_exit);
+device_initcall(hyper_sysfs_init);
static ssize_t hyp_sysfs_show(struct kobject *kobj,
struct attribute *attr,
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index 39e7ef8..79865b8 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -33,7 +33,9 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/mm_types.h>
+#include <linux/init.h>
#include <linux/capability.h>
#include <xen/xen.h>
@@ -109,14 +111,6 @@
}
subsys_initcall(balloon_init);
-static void balloon_exit(void)
-{
- /* XXX - release balloon here */
- return;
-}
-
-module_exit(balloon_exit);
-
#define BALLOON_SHOW(name, format, args...) \
static ssize_t show_##name(struct device *dev, \
struct device_attribute *attr, \
@@ -250,5 +244,3 @@
return 0;
}
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 9c23420..8e67336 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -10,7 +10,7 @@
*/
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/pci.h>
#include "pciback.h"
#include "conf_space.h"
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index fb02214..2f19dd7 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -6,7 +6,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/wait.h>
#include <linux/bitops.h>
#include <xen/events.h>
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index 4843741..c252eb3 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -6,7 +6,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/module.h>
+#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/vmalloc.h>
diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c
index 3b2bffd..53a085f 100644
--- a/drivers/xen/xen-selfballoon.c
+++ b/drivers/xen/xen-selfballoon.c
@@ -71,7 +71,6 @@
#include <linux/swap.h>
#include <linux/mm.h>
#include <linux/mman.h>
-#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/device.h>
#include <xen/balloon.h>
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c
index ee6d9ef..4a41ac9 100644
--- a/drivers/xen/xenbus/xenbus_dev_backend.c
+++ b/drivers/xen/xenbus/xenbus_dev_backend.c
@@ -5,7 +5,7 @@
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/capability.h>
#include <xen/xen.h>
@@ -18,8 +18,6 @@
#include "xenbus_comms.h"
-MODULE_LICENSE("GPL");
-
static int xenbus_backend_open(struct inode *inode, struct file *filp)
{
if (!capable(CAP_SYS_ADMIN))
@@ -132,11 +130,4 @@
pr_err("Could not register xenbus backend device\n");
return err;
}
-
-static void __exit xenbus_backend_exit(void)
-{
- misc_deregister(&xenbus_backend_dev);
-}
-
-module_init(xenbus_backend_init);
-module_exit(xenbus_backend_exit);
+device_initcall(xenbus_backend_init);
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 912b64e..cacf30d 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -55,7 +55,7 @@
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/miscdevice.h>
-#include <linux/module.h>
+#include <linux/init.h>
#include "xenbus_comms.h"
@@ -63,8 +63,6 @@
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
-MODULE_LICENSE("GPL");
-
/*
* An element of a list of outstanding transactions, for which we're
* still waiting a reply.
@@ -626,11 +624,4 @@
pr_err("Could not register xenbus frontend device\n");
return err;
}
-
-static void __exit xenbus_exit(void)
-{
- misc_deregister(&xenbus_dev);
-}
-
-module_init(xenbus_init);
-module_exit(xenbus_exit);
+device_initcall(xenbus_init);
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index ba804f3..374b12a 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -44,7 +44,6 @@
#include <linux/fcntl.h>
#include <linux/kthread.h>
#include <linux/rwsem.h>
-#include <linux/module.h>
#include <linux/mutex.h>
#include <asm/xen/hypervisor.h>
#include <xen/xenbus.h>
diff --git a/drivers/xen/xenfs/xensyms.c b/drivers/xen/xenfs/xensyms.c
index a03f261..c6e2b4a 100644
--- a/drivers/xen/xenfs/xensyms.c
+++ b/drivers/xen/xenfs/xensyms.c
@@ -1,4 +1,3 @@
-#include <linux/module.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/fs.h>