path: root/vmmon.patch

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 >= 4.2.99 does not return anything from misc_deregister
+ */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 99)
+#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-only/include/compat_timer.h b/vmmon-only/include/compat_timer.h
new file mode 100644
index 0000000..b68d9b2
--- /dev/null
+++ b/vmmon-only/include/compat_timer.h
@@ -0,0 +1,26 @@
+#ifndef __COMPAT_TIMER_H__
+#define __COMPAT_TIMER_H__
+
+#include <linux/timer.h>
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)) && !defined(timer_setup)
+
+typedef unsigned long compat_timer_arg_t;
+
+static inline void timer_setup(struct timer_list *timer,
+				      void (*func)(compat_timer_arg_t),
+				      unsigned int flags)
+{
+	init_timer(timer);
+	timer->function = func;
+	timer->data = 0;
+	timer->flags = flags;
+}
+
+#else /* new timer interface since 4.15 */
+
+typedef struct timer_list *compat_timer_arg_t;
+
+#endif /* new timer interface since 4.15 */
+
+#endif /* __COMPAT_TIMER_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
@@ -21,6 +21,7 @@
 
 #define EXPORT_SYMTAB
 
+#include "compat_timer.h"
 #include <linux/file.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
@@ -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;
@@ -216,7 +217,7 @@ LinuxDriverEstimateTSCkHz(void)
  *----------------------------------------------------------------------
  */
 static void
-LinuxDriverEstimateTSCkHzDeferred(unsigned long data)
+LinuxDriverEstimateTSCkHzDeferred(compat_timer_arg_t unused)
 {
    LinuxDriverEstimateTSCkHz();
 }
@@ -251,9 +252,7 @@ LinuxDriverInitTSCkHz(void)
    }
 
    LinuxDriverReadTSCAndUptime(&tsckHzStartTime);
-   tscTimer.function = LinuxDriverEstimateTSCkHzDeferred;
    tscTimer.expires  = jiffies + 4 * HZ;
-   tscTimer.data     = 0;
    add_timer(&tscTimer);
 }
 
@@ -295,20 +304,6 @@ 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;
@@ -335,7 +334,7 @@ init_module(void)
        linuxState.deviceName, linuxState.major, linuxState.minor);
 
    HostIF_InitUptime();
-   init_timer(&tscTimer);
+   timer_setup(&tscTimer, LinuxDriverEstimateTSCkHzDeferred, 0);
    LinuxDriverInitTSCkHz();
    Vmx86_InitIDList();
 
@@ -364,7 +373,9 @@ 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);
@@ -977,7 +988,7 @@ 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
@@ -29,6 +29,7 @@
 #include "driver-config.h"
 
 /* Must come before vmware.h --hpreg */
+#include "compat_timer.h"
 #include <linux/binfmts.h>
 #include <linux/delay.h>
 #include <linux/file.h>
@@ -36,6 +36,9 @@
 
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 99)
+#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
@@ -75,6 +79,37 @@
 #include "pgtbl.h"
 #include "versioned_atomic.h"
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
+#   define global_zone_page_state global_page_state
+#endif
+
+static unsigned long get_nr_slab_unreclaimable(void)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 13, 0)
+   return global_node_page_state(NR_SLAB_UNRECLAIMABLE);
+#else
+   return global_page_state(NR_SLAB_UNRECLAIMABLE);
+#endif
+}
+
+static unsigned long get_nr_unevictable(void)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+   return global_node_page_state(NR_UNEVICTABLE);
+#else
+   return global_page_state(NR_UNEVICTABLE);
+#endif
+}
+
+static unsigned long get_nr_anon_mapped(void)
+{
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
+   return global_node_page_state(NR_ANON_MAPPED);
+ #else
+   return global_page_state(NR_ANON_PAGES);
+ #endif
+}
+
 #if !defined(CONFIG_HIGH_RES_TIMERS)
 #error CONFIG_HIGH_RES_TIMERS required for acceptable performance
 #endif
@@ -115,6 +149,10 @@
  */
 #define LOCKED_PAGE_SLACK 10000
 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(4, 7, 99)
+#define NR_ANON_PAGES NR_ANON_MAPPED
+#endif
+
 static struct {
    Atomic_uint64     uptimeBase;
    VersionedAtomic   version;
@@ -1516,16 +1555,11 @@ HostIF_EstimateLockedPageLimit(const VMDriver* vm,                // IN
    unsigned int reservedPages = MEMDEFAULTS_MIN_HOST_PAGES;
    unsigned int hugePages = (vm == NULL) ? 0 :
       BYTES_2_PAGES(vm->memInfo.hugePageBytes);
-   unsigned int lockedPages = global_page_state(NR_PAGETABLE) +
-                              global_page_state(NR_SLAB_UNRECLAIMABLE) +
-                              global_page_state(NR_UNEVICTABLE) +
+   unsigned int lockedPages = global_zone_page_state(NR_PAGETABLE) +
+                              get_nr_slab_unreclaimable() +
+                              get_nr_unevictable() +
                               hugePages + reservedPages;
-   unsigned int anonPages =
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)
-      global_page_state(NR_ANON_MAPPED);
-#else
-      global_page_state(NR_ANON_PAGES);
-#endif
+   unsigned int anonPages = get_nr_anon_mapped();
    unsigned int swapPages = BYTES_2_PAGES(linuxState.swapSize);
 
    if (anonPages > swapPages) {
@@ -1688,7 +1723,7 @@ HostIFReadUptimeWork(unsigned long *j)  // OUT: current jiffies
  */
 
 static void
-HostIFUptimeResyncMono(unsigned long data)  // IN: ignored
+HostIFUptimeResyncMono(compat_timer_arg_t unused)  // IN: ignored
 {
    unsigned long jifs;
    uintptr_t flags;
@@ -1750,8 +1785,7 @@ HostIF_InitUptime(void)
                   -(tv.tv_usec * (UPTIME_FREQ / 1000000) +
                     tv.tv_sec * UPTIME_FREQ));
 
-   init_timer(&uptimeState.timer);
-   uptimeState.timer.function = HostIFUptimeResyncMono;
+   timer_setup(&uptimeState.timer, HostIFUptimeResyncMono, 0);
    mod_timer(&uptimeState.timer, jiffies + HZ);
 }