summarylogtreecommitdiffstats
path: root/vmmon.patch
blob: a8d36efcc07dd748cdd9a084ebb00aedfacbb942 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
diff --git a/vmmon/Makefile b/vmmon/Makefile
index de8162e..6124a71 100644
--- a/vmmon/Makefile
+++ b/vmmon/Makefile
@@ -43,7 +43,11 @@ INCLUDE      += -I$(SRCROOT)/shared
 endif
 
 
+ifdef KVERSION
+VM_UNAME = $(KVERSION)
+else
 VM_UNAME = $(shell uname -r)
+endif
 
 # Header directory for the running kernel
 ifdef LINUXINCLUDE
diff --git a/vmmon/Makefile.kernel b/vmmon/Makefile.kernel
index bf805e0..9aac585 100644
--- a/vmmon/Makefile.kernel
+++ b/vmmon/Makefile.kernel
@@ -22,7 +22,7 @@ CC_OPTS += -DVMMON -DVMCORE
 INCLUDE := -I$(SRCROOT)/include -I$(SRCROOT)/common -I$(SRCROOT)/linux \
 	   -I$(SRCROOT)/vmcore
 
-EXTRA_CFLAGS := $(CC_OPTS) $(INCLUDE)
+EXTRA_CFLAGS := $(CC_OPTS) $(INCLUDE) $(LINUXINCLUDE)
 
 obj-m += $(DRIVER).o
 
diff --git a/vmmon/include/compat_module.h b/vmmon/include/compat_module.h
index 2af7372..729aedc 100644
--- a/vmmon/include/compat_module.h
+++ b/vmmon/include/compat_module.h
@@ -80,4 +80,13 @@ static const char __module_cat(tag, __LINE__)[]                               \
    typedef int compat_mod_param_bool;
 #endif
 
+/*
+ * Linux kernel >= 4.3.0 does not return anything from misc_deregister
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
+#define compat_misc_deregister(misc) misc_deregister(misc)
+#else
+#define compat_misc_deregister(misc) ({misc_deregister(misc);0;})
+#endif
+
 #endif /* __COMPAT_MODULE_H__ */
diff --git a/vmmon/linux/driver.c b/vmmon/linux/driver.c
index 87cf45b..5390a93 100644
--- a/vmmon/linux/driver.c
+++ b/vmmon/linux/driver.c
@@ -109,7 +109,15 @@ static struct vm_operations_struct vmuser_mops = {
         .fault  = LinuxDriverFault
 };
 
-static struct file_operations vmuser_fops;
+static struct file_operations vmuser_fops = {
+   .owner = THIS_MODULE,
+   .unlocked_ioctl = LinuxDriver_Ioctl,
+   .compat_ioctl = LinuxDriver_Ioctl,
+   .open = LinuxDriver_Open,
+   .release = LinuxDriver_Close,
+   .mmap = LinuxDriverMmap
+};
+
 static struct timer_list tscTimer;
 static Atomic_uint32 tsckHz;
 static VmTimeStart tsckHzStartTime;
@@ -293,20 +301,6 @@ init_module(void)
    linuxState.fastClockRate = 0;
    linuxState.swapSize = VMMON_UNKNOWN_SWAP_SIZE;
 
-   /*
-    * Initialize the file_operations structure. Because this code is always
-    * compiled as a module, this is fine to do it here and not in a static
-    * initializer.
-    */
-
-   memset(&vmuser_fops, 0, sizeof vmuser_fops);
-   vmuser_fops.owner = THIS_MODULE;
-   vmuser_fops.unlocked_ioctl = LinuxDriver_Ioctl;
-   vmuser_fops.compat_ioctl = LinuxDriver_Ioctl;
-   vmuser_fops.open = LinuxDriver_Open;
-   vmuser_fops.release = LinuxDriver_Close;
-   vmuser_fops.mmap = LinuxDriverMmap;
-
 #ifdef VMX86_DEVEL
    devel_init_module();
    linuxState.minor = 0;
@@ -368,7 +362,9 @@ cleanup_module(void)
 #ifdef VMX86_DEVEL
    unregister_chrdev(linuxState.major, linuxState.deviceName);
 #else
-   misc_deregister(&linuxState.misc);
+   if (compat_misc_deregister(&linuxState.misc)) {
+      Warning("Module %s: error unregistering\n", linuxState.deviceName);
+   }
 #endif
 
    Log("Module %s: unloaded\n", linuxState.deviceName);
@@ -981,7 +977,7 @@ LinuxDriverReadTSC(void *data,   // OUT: TSC values
  *-----------------------------------------------------------------------------
  */
 
-__attribute__((always_inline)) static Bool
+inline __attribute__((always_inline)) static Bool
 LinuxDriverSyncReadTSCs(uint64 *delta) // OUT: TSC max - TSC min
 {
    TSCDelta tscDelta;
diff --git a/vmmon/linux/hostif.c b/vmmon/linux/hostif.c
index fd32013..583d6da 100644
--- a/vmmon/linux/hostif.c
+++ b/vmmon/linux/hostif.c
@@ -36,6 +36,9 @@
 
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
+#include <linux/sched/signal.h>
+#endif
 
 #include <linux/preempt.h>
 #include <linux/poll.h>
@@ -51,6 +54,7 @@
 #include <linux/capability.h>
 #include <linux/kthread.h>
 #include <linux/wait.h>
+#include <asm/apic.h>
 #include <linux/hrtimer.h>
 #include <linux/signal.h>
 #include <linux/taskstats_kern.h> // For linux/sched/signal.h without version check
@@ -115,6 +149,10 @@
  */
 #define LOCKED_PAGE_SLACK 10000
 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(4, 8, 0)
+#define NR_ANON_PAGES NR_ANON_MAPPED
+#endif
+
 static struct {
    Atomic_uint64     uptimeBase;
    VersionedAtomic   version;