mark branch workstation-15.1.0 as retired

The kernels used in (upcoming) SLE15 SP2 and openSUSE Leap 15.2 are based
on upstream version 5.3 but have a backport of the skb_frag_t conversion to
bio_vec which reached mainline in v5.4-rc1. As we cannot easily check
availability compat_skb_frag_off() (which was also added in v5.4-rc1) and
have to resort to version check, add an exception for SLE15-SP2 and
openSUSE-15.2 kernels.

INSTALL

@@ -150,7 +150,7 @@ test build).
 When using a downloaded tarball, simply run
 
   tar -cf vmmon.tar vmmon-only
-  tar -cf vmnet.tar vmmon-only
+  tar -cf vmnet.tar vmnet-only
 
 to create the tarballs. In this case, there is no protection against
 unwanted local changes.

RETIRED

@@ -0,0 +1,7 @@
+*-----------------------------------------------------------------------------
+* Branch workstation-15.1.0 has been retired on 2020-02-10 and has not been
+* receiving any updates since. Please switch to latest 15.1.x version
+* available.
+*
+* Latest kernel version this branch is intended to work with is 5.5.
+*-----------------------------------------------------------------------------

vmmon-only/Makefile

@@ -107,7 +107,7 @@ prebuild:: ;
 postbuild:: ;
 
 $(DRIVER_KO): prebuild
-	$(MAKE) -C $(BUILD_DIR) SUBDIRS=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
+	$(MAKE) -C $(BUILD_DIR) M=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
 	  MODULEBUILDDIR=$(MODULEBUILDDIR) modules
 	$(MAKE) -C $$PWD SRCROOT=$$PWD/$(SRCROOT) \
 	  MODULEBUILDDIR=$(MODULEBUILDDIR) postbuild

vmmon-only/Makefile.kernel

@@ -31,7 +31,7 @@ $(DRIVER)-y := $(subst $(SRCROOT)/, , $(patsubst %.c, %.o, \
 		$(SRCROOT)/bootstrap/*.c)))
 
 clean:
-	rm -rf $(wildcard $(DRIVER).mod.c $(DRIVER).ko .tmp_versions \
+	rm -rf $(wildcard $(DRIVER).mod.c $(DRIVER).ko .tmp_versions .cache.mk \
 		Module.symvers Modules.symvers Module.markers modules.order \
 		$(foreach dir,linux/ common/ vmcore/ bootstrap/ \
 		./,$(addprefix $(dir),.*.cmd .*.o.flags *.o)))

vmmon-only/common/phystrack.c

@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 1998,2014 VMware, Inc. All rights reserved.
+ * Copyright (C) 1998,2014,2019 VMware, Inc. All rights reserved.
  *
  * 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
@@ -24,9 +24,8 @@
  *    Depending on configuration phystracker provides either 2-level or
  *    3-level structure to track whether page (specified by its MPN) is
  *    locked or no.  Linux uses 3-level structures with top limit of
- *    1TB (32bit) or 16TB (64bit).  Windows use 2-level structures
- *    ready to hold 128GB (32bit) or 2TB (64bit) of memory.  On Mac
- *    limit is 2-level 128GB.
+ *    1TB (32bit) or 16TB (64bit).  Windows and Mac use 2-level structures
+ *    ready to hold 128GB (32bit) or 2TB (64bit) of memory.
  *
  *    2-level phystracker is built on top of 3-level one by collapsing
  *    middle level.
@@ -50,9 +49,7 @@
 #define BYTES_PER_ENTRY      (PAGE_SIZE)
 #define PHYSTRACK_L3_ENTRIES (8 * BYTES_PER_ENTRY) /* 128MB */
 
-#if defined(WINNT_DDK)
-#define PHYSTRACK_L1_ENTRIES (PHYSTRACK_MAX_SUPPORTED_GB * 8)
-#elif defined(__linux__)
+#if defined(__linux__)
 #define PHYSTRACK_L2_ENTRIES (BYTES_PER_ENTRY / sizeof(void *)) /* 64GB or 128GB */
 /*
  * Currently MPN is 32 bits.  15 bits are in L3, 9 bits are in L2,
@@ -60,7 +57,7 @@
  */
 #define PHYSTRACK_L1_ENTRIES (256) /* 16TB. */
 #else
-#define PHYSTRACK_L1_ENTRIES ((128 + 4) * 8) /* 128 GB */
+#define PHYSTRACK_L1_ENTRIES (PHYSTRACK_MAX_SUPPORTED_GB * 8)
 #endif
 
 #ifndef PHYSTRACK_L2_ENTRIES

vmmon-only/common/phystrack.h

@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 1998 VMware, Inc. All rights reserved.
+ * Copyright (C) 1998,2019 VMware, Inc. All rights reserved.
  *
  * 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
@@ -29,7 +29,7 @@
 #define INCLUDE_ALLOW_VMCORE
 #include "includeCheck.h"
 
-#if defined(WINNT_DDK)
+#if !defined (__linux__)
 /* XXX: can be more efficient based on server vs. desktop and version of Windows */
 #define PHYSTRACK_MAX_SUPPORTED_GB (2048 + 4) /* 2 TB 64-bit W2k8 + 4 GB PCI */
 #endif

vmmon-only/common/task.c

@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 1998-2018 VMware, Inc. All rights reserved.
+ * Copyright (C) 1998-2019 VMware, Inc. All rights reserved.
  *
  * 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
@@ -2322,12 +2322,23 @@ TaskSwitchToMonitor(VMCrossPage *crosspage)
    {
       uint64 raxGetsWiped, rcxGetsWiped;
 
+#ifdef CALL_NOSPEC
+      __asm__ __volatile__(CALL_NOSPEC
+                           : "=a" (raxGetsWiped),
+                             "=c" (rcxGetsWiped)
+                           : "0" (codePtr),
+                             "1" (crosspage),
+                             THUNK_TARGET(codePtr)
+                           : "rdx", "r8", "r9", "r10", "r11", "cc", "memory");
+#else
       __asm__ __volatile__("call *%%rax"
                            : "=a" (raxGetsWiped),
                              "=c" (rcxGetsWiped)
                            : "0" (codePtr),
                              "1" (crosspage)
                            : "rdx", "r8", "r9", "r10", "r11", "cc", "memory");
+#endif
+
    }
 #elif defined(_MSC_VER)
    /*
@@ -2909,6 +2920,18 @@ Task_Switch(VMDriver *vm,  // IN
    }
 
    if (crosspage->crosspageData.moduleCallType == MODULECALL_INTR) {
+
+      /*
+       * Newer versions of Window expect EFLAGS_AC to be set when handling an
+       * interupt - PR  2248661.
+       */
+      if ((flags & EFLAGS_AC) != 0) {
+         uintptr_t   curFlags;
+         SAVE_FLAGS(curFlags);
+         curFlags |= EFLAGS_AC;
+         RESTORE_FLAGS(curFlags);
+      }
+
       /*
        * Note we must do the RAISE_INTERRUPT before ever enabling
        * interrupts or bad things have happened (might want to know exactly

vmmon-only/include/compat_poll.h

@@ -0,0 +1,30 @@
+#ifndef __COMPAT_POLL_H__
+#define __COMPAT_POLL_H__
+
+#include <linux/poll.h>
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 18, 0))
+
+#ifndef __poll_t
+typedef unsigned int __poll_t;
+#endif
+
+static inline __poll_t compat_vfs_poll(struct file *file,
+				       struct poll_table_struct *pt)
+{
+	if (unlikely(!file->f_op->poll))
+		return DEFAULT_POLLMASK;
+	return file->f_op->poll(file, pt);
+}
+
+#else
+
+static inline __poll_t compat_vfs_poll(struct file *file,
+				       struct poll_table_struct *pt)
+{
+	return vfs_poll(file, pt);
+}
+
+#endif
+
+#endif /* __COMPAT_POLL_H__ */

vmmon-only/include/iocontrols.h

@@ -144,7 +144,7 @@ PtrToVA64(void const *ptr) // IN
  * See bora/doc/vmcore details.
  */
 
-#define VMMON_VERSION           (360 << 16 | 0)
+#define VMMON_VERSION           (361 << 16 | 0)
 #define VMMON_VERSION_MAJOR(v)  ((uint32) (v) >> 16)
 #define VMMON_VERSION_MINOR(v)  ((uint16) (v))
 
@@ -276,6 +276,7 @@ enum IOCTLCmd {
 #endif
 
 #if defined __APPLE__
+   IOCTLCMD(GET_NUM_RESPONDING_CPUS),
    IOCTLCMD(ALLOC_LOW_PAGES),
    IOCTLCMD(INIT_DRIVER),
    IOCTLCMD(BLUEPILL),

vmmon-only/include/vm_assert.h

@@ -67,6 +67,7 @@ extern "C" {
 #if defined (VMKPANIC) 
 #include "vmk_assert.h"
 #else /* !VMKPANIC */
+#include <linux/kernel.h>
 #define _ASSERT_PANIC(name) \
            Panic(_##name##Fmt "\n", __FILE__, __LINE__)
 #define _ASSERT_PANIC_BUG(bug, name) \
@@ -107,7 +108,7 @@ NORETURN void Panic_NoSave(const char *fmt, ...) PRINTF_DECL(1, 2);
 } while(0)
 
 #else
-NORETURN void Panic(const char *fmt, ...) PRINTF_DECL(1, 2);
+#define Panic panic
 #endif
 
 void LogThrottled(uint32 *count, const char *fmt, ...) PRINTF_DECL(2, 3);

vmmon-only/include/x86_basic_defs.h

@@ -35,6 +35,8 @@
 #define INCLUDE_ALLOW_VMCORE
 #include "includeCheck.h"
 
+#include <asm/processor-flags.h>
+
 #define X86_MAX_INSTR_LEN  15   /* Max byte length of an x86 instruction. */
 
 #define NUM_IDT_VECTORS 256
@@ -75,7 +77,9 @@
 #define CR3_PDB_MASK   0xfffff000
 #define CR3_IGNORE     0xFFF
 #define PAE_CR3_IGNORE 0x1F
+#ifndef CR3_PCID_MASK
 #define CR3_PCID_MASK  0xFFF
+#endif
 #define CR3_NO_FLUSH   (1ULL << 63)
 
 #define CR4_VME        0x00000001

vmmon-only/include/x86cpuid.h

@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 1998-2018 VMware, Inc. All rights reserved.
+ * Copyright (C) 1998-2019 VMware, Inc. All rights reserved.
  *
  * 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
@@ -465,6 +465,9 @@ FLAG(   6,  0, ECX,  3,  1, ENERGY_PERF_BIAS,                  NO,   0, FALSE)
 #define CPUID_7_EDX_28 \
 FLAG(   7,  0, EDX, 28,  1, LEVEL7EDX_RSVD1,                    NO,  0, FALSE)
 
+/*    LEVEL, SUB-LEVEL, REG, POS, SIZE, NAME,             MON SUPP, HWV, CPL3 */
+#define CPUID_7_EDX_10 \
+FLAG(   7,  0, EDX, 10,  1, LEAF7_RSVD,                         NO,  0, FALSE)
 #define CPUID_7_EDX_31 \
 FLAG(   7,  0, EDX, 31,  1, LEVEL7EDX_RSVD2,                    NO,  0, FALSE)
 
@@ -519,6 +522,7 @@ FLAG(   7,  0, ECX, 22,  1, RDPID,                             NO,   0, TRUE)  \
 FLAG(   7,  0, ECX, 30,  1, SGX_LC,                            YES, 17, FALSE) \
 FLAG(   7,  0, EDX,  2,  1, AVX512QVNNIW,                      YES, 16, TRUE)  \
 FLAG(   7,  0, EDX,  3,  1, AVX512QFMAPS,                      YES, 16, TRUE)  \
+CPUID_7_EDX_10                                                                 \
 FLAG(   7,  0, EDX, 26,  1, IBRSIBPB,                          ANY,  9, FALSE) \
 FLAG(   7,  0, EDX, 27,  1, STIBP,                             YES,  9, FALSE) \
 CPUID_7_EDX_28                                                                 \
@@ -1432,6 +1436,8 @@ CPUIDCheck(int32 eaxIn, int32 eaxInCheck,
 #define CPUID_STEPPING_KABYLAKE_ES     0x8  // Kabylake S/H/U/Y ES
 #define CPUID_STEPPING_COFFEELAKE_A    0xA  // Coffeelake U/S/H
 #define CPUID_STEPPING_COFFEELAKE_B    0xB  // Coffeelake S/H
+#define CPUID_STEPPING_CASCADELAKE_A   0x5  // Cascade Lake A-step
+#define CPUID_STEPPING_CASCADELAKE_B1  0x7  // Cascade Lake B1-step
 
 #define CPUID_MODEL_PIII_07    7
 #define CPUID_MODEL_PIII_08    8
@@ -1656,6 +1662,15 @@ CPUID_MODEL_IS_HASWELL(uint32 v) // IN: %eax from CPUID with %eax=1.
            effectiveModel == CPUID_MODEL_HASWELL_46);
 }
 
+static INLINE Bool
+CPUID_MODEL_IS_CASCADELAKE(uint32 v) // IN: %eax from CPUID with %eax=1.
+{
+   /* Assumes the CPU manufacturer is Intel. */
+   return CPUID_FAMILY_IS_P6(v) &&
+          CPUID_EFFECTIVE_MODEL(v) == CPUID_MODEL_SKYLAKE_55 &&
+          CPUID_EFFECTIVE_STEPPING(v) >= CPUID_STEPPING_CASCADELAKE_A &&
+          CPUID_EFFECTIVE_STEPPING(v) <= CPUID_STEPPING_CASCADELAKE_B1;
+}
 
 static INLINE Bool
 CPUID_MODEL_IS_SKYLAKE(uint32 v) // IN: %eax from CPUID with %eax=1.

vmmon-only/include/x86msr.h

@@ -1,5 +1,5 @@
 /*********************************************************
- * Copyright (C) 1998-2018 VMware, Inc. All rights reserved.
+ * Copyright (C) 1998-2019 VMware, Inc. All rights reserved.
  *
  * 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
@@ -24,6 +24,7 @@
 
 #ifndef _X86MSR_H_
 #define _X86MSR_H_
+#include <asm/msr-index.h>
 #define INCLUDE_ALLOW_USERLEVEL
 #define INCLUDE_ALLOW_VMX
 
@@ -120,6 +121,8 @@ MSRQuery;
 #define MSR_ARCH_CAPABILITIES_RDCL_NO             (1ULL << 0)
 #define MSR_ARCH_CAPABILITIES_IBRS_ALL            (1ULL << 1)
 #define MSR_ARCH_CAPABILITIES_RSBA                (1ULL << 2)
+#define MSR_ARCH_CAPABILITIES_NOL1F_VMENTRY       (1ULL << 3)
+#define MSR_ARCH_CAPABILITIES_SSB_NO              (1ULL << 4)
 
 
 #define MSR_SPEC_CTRL_IBRS                        (1UL << 0)
@@ -127,7 +130,9 @@ MSRQuery;
 
 #define MSR_PRED_CMD_IBPB                         (1UL << 0)
 
+#ifndef MSR_MISC_FEATURES_ENABLES
 #define MSR_MISC_FEATURES_ENABLES            0x140
+#endif
 
 /* Intel Core Architecture and later: use only architected counters. */
 #define IA32_MSR_PERF_CAPABILITIES                0x345
@@ -463,7 +468,9 @@ typedef enum {
 #define MSR_K7_HWCR_SSEDIS         0x00008000ULL // Disable SSE bit
 #define MSR_K7_HWCR_MONMWAITUSEREN 0x00000400ULL // Enable MONITOR/MWAIT CPL>0
 #define MSR_K7_HWCR_TLBFFDIS       0x00000040ULL // Disable TLB Flush Filter
+#ifndef MSR_K7_HWCR_SMMLOCK
 #define MSR_K7_HWCR_SMMLOCK        0x00000001ULL // Lock SMM environment
+#endif
 
 #ifndef MSR_K8_SYSCFG
 #define MSR_K8_SYSCFG        0xc0010010
@@ -652,7 +659,11 @@ typedef unsigned char MTRRType;
 /*
  * MISC_FEATURES_ENABLES bits
  */
+#ifdef MSR_MISC_FEATURES_ENABLES_CPUID_FAULT
+#define MSR_MISC_FEATURES_ENABLES_CPUID_FAULTING MSR_MISC_FEATURES_ENABLES_CPUID_FAULT
+#else
 #define MSR_MISC_FEATURES_ENABLES_CPUID_FAULTING 1
+#endif
 
 
 

vmmon-only/linux/driver.c

@@ -73,6 +73,9 @@ static Bool LinuxDriverCheckPadding(void);
 
 struct VMXLinuxState linuxState;
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 17, 0)
+typedef int vm_fault_t;
+#endif
 
 /*
  *----------------------------------------------------------------------
@@ -97,9 +100,9 @@ long LinuxDriver_Ioctl(struct file *filp, u_int iocmd,
 
 static int LinuxDriver_Close(struct inode *inode, struct file *filp);
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
-static int LinuxDriverFault(struct vm_fault *fault);
+static vm_fault_t LinuxDriverFault(struct vm_fault *fault);
 #else
-static int LinuxDriverFault(struct vm_area_struct *vma, struct vm_fault *fault);
+static vm_fault_t LinuxDriverFault(struct vm_area_struct *vma, struct vm_fault *fault);
 #endif
 static int LinuxDriverMmap(struct file *filp, struct vm_area_struct *vma);
 
@@ -595,7 +598,7 @@ LinuxDriver_Close(struct inode *inode, // IN
  *-----------------------------------------------------------------------------
  */
 
-static int
+static vm_fault_t
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
 LinuxDriverFault(struct vm_fault *fault)     //IN/OUT
 #else
@@ -982,7 +985,7 @@ LinuxDriverReadTSC(void *data,   // OUT: TSC values
  *-----------------------------------------------------------------------------
  */
 
-__attribute__((always_inline)) static Bool
+__always_inline static Bool
 LinuxDriverSyncReadTSCs(uint64 *delta) // OUT: TSC max - TSC min
 {
    TSCDelta tscDelta;

vmmon-only/linux/hostif.c

@@ -74,6 +74,7 @@
 
 #include "pgtbl.h"
 #include "versioned_atomic.h"
+#include "compat_poll.h"
 
 #if !defined(CONFIG_HIGH_RES_TIMERS)
 #error CONFIG_HIGH_RES_TIMERS required for acceptable performance
@@ -1638,9 +1639,13 @@ HostIF_EstimateLockedPageLimit(const VMDriver* vm,                // IN
     * since at least 2.6.0.
     */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
    extern unsigned long totalram_pages;
 
    unsigned int totalPhysicalPages = totalram_pages;
+#else
+   unsigned int totalPhysicalPages = totalram_pages();
+#endif
 
    /*
     * Use the memory information linux exports as of late for a more
@@ -1738,6 +1743,49 @@ HostIF_WaitForFreePages(unsigned int timeoutMs)  // IN:
 }
 
 
+/*
+ *----------------------------------------------------------------------
+ *
+ * HostIFGetTime --
+ *
+ *      Reads the current time in UPTIME_FREQ units.
+ *
+ * Results:
+ *      The uptime, in units of UPTIME_FREQ.
+ *
+ * Side effects:
+ *      None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static uint64
+HostIFGetTime(void)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
+   struct timeval tv;
+
+   do_gettimeofday(&tv);
+   return tv.tv_usec * (UPTIME_FREQ / 1000000) + tv.tv_sec * UPTIME_FREQ;
+#else
+   struct timespec64 now;
+
+   /*
+    * Use raw time used by Posix timers.  This time is not affected by
+    * NTP adjustments, so it may drift from real time and monotonic time,
+    * but it will stay in sync with other timers.
+    */
+   ktime_get_raw_ts64(&now);
+   /*
+    * UPTIME_FREQ resolution is lower than tv_nsec,
+    * so we have to do division...
+    */
+   ASSERT_ON_COMPILE(1000000000 % UPTIME_FREQ == 0);
+   return now.tv_nsec / (1000000000 / UPTIME_FREQ) + now.tv_sec * UPTIME_FREQ;
+#endif
+}
+
+
 /*
  *----------------------------------------------------------------------
  *
@@ -1769,7 +1817,6 @@ HostIF_WaitForFreePages(unsigned int timeoutMs)  // IN:
 static uint64
 HostIFReadUptimeWork(unsigned long *j)  // OUT: current jiffies
 {
-   struct timeval tv;
    uint64 monotime, uptime, upBase, monoBase;
    int64 diff;
    uint32 version;
@@ -1784,13 +1831,12 @@ HostIFReadUptimeWork(unsigned long *j)  // OUT: current jiffies
       monoBase = uptimeState.monotimeBase;
    } while (!VersionedAtomic_EndTryRead(&uptimeState.version, version));
 
-   do_gettimeofday(&tv);
+   uptime = HostIFGetTime();
    upBase = Atomic_Read64(&uptimeState.uptimeBase);
 
    monotime = (uint64)(jifs - jifBase) * (UPTIME_FREQ / HZ);
    monotime += monoBase;
 
-   uptime = tv.tv_usec * (UPTIME_FREQ / 1000000) + tv.tv_sec * UPTIME_FREQ;
    uptime += upBase;
 
    /*
@@ -1895,13 +1941,11 @@ HostIFUptimeResyncMono(struct timer_list *timer)  // IN: ignored
 void
 HostIF_InitUptime(void)
 {
-   struct timeval tv;
+   uint64 tm;
 
    uptimeState.jiffiesBase = jiffies;
-   do_gettimeofday(&tv);
-   Atomic_Write64(&uptimeState.uptimeBase,
-                  -(tv.tv_usec * (UPTIME_FREQ / 1000000) +
-                    tv.tv_sec * UPTIME_FREQ));
+   tm = HostIFGetTime();
+   Atomic_Write64(&uptimeState.uptimeBase, -tm);
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0) && !defined(timer_setup)
    init_timer(&uptimeState.timer);
@@ -2285,7 +2329,7 @@ isVAReadable(VA r)  // IN:
    int ret;
 
    old_fs = get_fs();
-   set_fs(get_ds());
+   set_fs(KERNEL_DS);
    r = APICR_TO_ADDR(r, APICR_VERSION);
    ret = HostIF_CopyFromUser(&dummy, r, sizeof dummy);
    set_fs(old_fs);
@@ -2562,7 +2606,7 @@ HostIF_SemaphoreWait(VMDriver *vm,   // IN:
    }
 
    old_fs = get_fs();
-   set_fs(get_ds());
+   set_fs(KERNEL_DS);
 
    {
       struct poll_wqueues table;
@@ -2570,7 +2614,7 @@ HostIF_SemaphoreWait(VMDriver *vm,   // IN:
 
       poll_initwait(&table);
       current->state = TASK_INTERRUPTIBLE;
-      mask = file->f_op->poll(file, &table.pt);
+      mask = compat_vfs_poll(file, &table.pt);
       if (!(mask & (POLLIN | POLLERR | POLLHUP))) {
          vm->vmhost->vcpuSemaTask[vcpuid] = current;
          schedule_timeout(timeoutms * HZ / 1000);  // convert to Hz
@@ -2691,7 +2735,7 @@ HostIF_SemaphoreSignal(uint64 *args)  // IN:
    }
 
    old_fs = get_fs();
-   set_fs(get_ds());
+   set_fs(KERNEL_DS);
 
    /*
     * Always write sizeof(uint64) bytes. This works fine for eventfd and
@@ -3359,7 +3403,7 @@ HostIF_SetFastClockRate(unsigned int rate) // IN: Frequency in Hz.
       }
    } else {
       if (linuxState.fastClockThread) {
-         force_sig(SIGKILL, linuxState.fastClockThread);
+         send_sig(SIGKILL, linuxState.fastClockThread, 1);
          kthread_stop(linuxState.fastClockThread);
 
          linuxState.fastClockThread = NULL;
@@ -3405,7 +3449,12 @@ HostIF_MapUserMem(VA addr,                  // IN: User memory virtual address
 
    ASSERT(handle);
 
-   if (!access_ok(VERIFY_WRITE, p, size)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 0, 0)
+   if (!access_ok(VERIFY_WRITE, p, size))
+#else
+   if (!access_ok(p, size))
+#endif
+   {
       printk(KERN_ERR "%s: Couldn't verify write to uva 0x%p with size %"
              FMTSZ"u\n", __func__, p, size);
 

vmnet-only/Makefile

@@ -107,7 +107,7 @@ prebuild:: ;
 postbuild:: ;
 
 $(DRIVER_KO): prebuild
-	$(MAKE) -C $(BUILD_DIR) SUBDIRS=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
+	$(MAKE) -C $(BUILD_DIR) M=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
 	  MODULEBUILDDIR=$(MODULEBUILDDIR) modules
 	$(MAKE) -C $$PWD SRCROOT=$$PWD/$(SRCROOT) \
 	  MODULEBUILDDIR=$(MODULEBUILDDIR) postbuild

vmnet-only/Makefile.kernel

@@ -32,6 +32,6 @@ $(DRIVER)-y := driver.o hub.o userif.o netif.o bridge.o procfs.o smac_compat.o \
 ####
 
 clean:
-	rm -rf $(DRIVER).o $(DRIVER).mod.o $(DRIVER).mod.c $(DRIVER).ko \
+	rm -rf $(DRIVER).o $(DRIVER).mod.o $(DRIVER).mod.c $(DRIVER).ko .cache.mk \
 	       .tmp_versions Module.symvers Modules.symvers Module.markers \
 	       modules.order $($(DRIVER)-y) .*.cmd .*.o.flags

vmnet-only/bridge.c

@@ -67,6 +67,18 @@
 
 #if LOGLEVEL >= 4
 static struct timeval vnetTime;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 0, 0)
+static void do_gettimeofday(struct timeval *tv)
+{
+	struct timespec64 now;
+
+	ktime_get_real_ts64(&now);
+	tv->tv_sec = now.tv_sec;
+	tv->tv_usec = now.tv_nsec / 1000;
+}
+#endif
+
 #endif
 
 typedef struct VNetBridge VNetBridge;

vmnet-only/userif.c

@@ -78,13 +78,33 @@ static int  VNetUserIfSetUplinkState(VNetPort *port, uint8 linkUp);
 extern unsigned int  vnet_max_qlen;
 
 #if COMPAT_LINUX_VERSION_CHECK_LT(3, 2, 0)
-#   define compat_kmap(page) kmap(page)
-#   define compat_kunmap(page) kunmap(page)
+#   define compat_kmap_frag(frag) kmap((frag)->page)
+#   define compat_kunmap_frag(page) kunmap((frag)->page)
 #else
-#   define compat_kmap(page) kmap((page).p)
-#   define compat_kunmap(page) kunmap((page).p)
+#   define compat_kmap_frag(frag) kmap(skb_frag_page(frag))
+#   define compat_kunmap_frag(frag) kunmap(skb_frag_page(frag))
 #endif
 
+static unsigned int compat_skb_frag_size(const skb_frag_t *frag)
+{
+#if COMPAT_LINUX_VERSION_CHECK_LT(3, 2, 0)
+	return frag->size;
+#else
+	return skb_frag_size(frag);
+#endif
+}
+
+static unsigned int compat_skb_frag_off(const skb_frag_t *frag)
+{
+#if COMPAT_LINUX_VERSION_CHECK_LT(5, 4, 0) && \
+	!(defined(CONFIG_SUSE_VERSION) && CONFIG_SUSE_VERSION == 15 && \
+	  defined(CONFIG_SUSE_PATCHLEVEL) && CONFIG_SUSE_PATCHLEVEL >= 2)
+	return frag->page_offset;
+#else
+	return skb_frag_off(frag);
+#endif
+}
+
 /*
  *-----------------------------------------------------------------------------
  *
@@ -137,16 +157,21 @@ UserifLockPage(VA addr) // IN
  */
 
 static INLINE int
-VNetUserIfMapPtr(VA uAddr,        // IN: pointer to user memory
+VNetUserIfMapPtr(VA64 uAddr,      // IN: pointer to user memory
                  size_t size,     // IN: size of data
                  struct page **p, // OUT: locked page
                  void **ptr)      // OUT: kernel mapped pointer
 {
-   if (!access_ok(VERIFY_WRITE, (void *)uAddr, size) ||
-       (((uAddr + size - 1) & ~(PAGE_SIZE - 1)) !=
-        (uAddr & ~(PAGE_SIZE - 1)))) {
+   uint8 v;
+
+   /* Check area does not straddle two pages. */
+   if ((uAddr & (PAGE_SIZE - 1)) + size > PAGE_SIZE) {
       return -EINVAL;
    }
+   /* Check if it is user's area.  UserifLockPage() checks writability. */
+   if (copy_from_user(&v, (void *)(unsigned long)uAddr, sizeof v) != 0) {
+      return -EFAULT;
+   }
 
    *p = UserifLockPage(uAddr);
    if (*p == NULL) {
@@ -158,7 +183,7 @@ VNetUserIfMapPtr(VA uAddr,        // IN: pointer to user memory
 }
 
 static INLINE int
-VNetUserIfMapUint32Ptr(VA uAddr,        // IN: pointer to user memory
+VNetUserIfMapUint32Ptr(VA64 uAddr,      // IN: pointer to user memory
                        struct page **p, // OUT: locked page
                        uint32 **ptr)    // OUT: kernel mapped pointer
 {
@@ -201,7 +226,7 @@ VNetUserIfSetupNotify(VNetUserIF *userIf, // IN
       return -EBUSY;
    }
 
-   if ((retval = VNetUserIfMapUint32Ptr((VA)vn->pollPtr, &pollPage,
+   if ((retval = VNetUserIfMapUint32Ptr(vn->pollPtr, &pollPage,
                                         &pollPtr)) < 0) {
       return retval;
    }
@@ -213,7 +238,7 @@ VNetUserIfSetupNotify(VNetUserIF *userIf, // IN
       goto error_free;
    }
 
-   if ((retval = VNetUserIfMapUint32Ptr((VA)vn->recvClusterPtr,
+   if ((retval = VNetUserIfMapUint32Ptr(vn->recvClusterPtr,
                                         &recvClusterPage,
                                         &recvClusterCount)) < 0) {
       goto error_free;
@@ -559,20 +584,21 @@ VNetCsumCopyDatagram(const struct sk_buff *skb,	// IN: skb to copy
    for (frag = skb_shinfo(skb)->frags;
 	frag != skb_shinfo(skb)->frags + skb_shinfo(skb)->nr_frags;
 	frag++) {
-      if (frag->size > 0) {
+      if (compat_skb_frag_size(frag) > 0) {
 	 unsigned int tmpCsum;
 	 const void *vaddr;
 
-	 vaddr = compat_kmap(frag->page);
-	 tmpCsum = csum_and_copy_to_user(vaddr + frag->page_offset,
-					 curr, frag->size, 0, &err);
-	 compat_kunmap(frag->page);
+	 vaddr = compat_kmap_frag(frag);
+	 tmpCsum = csum_and_copy_to_user(vaddr + compat_skb_frag_off(frag),
+					 curr, compat_skb_frag_size(frag), 0,
+					 &err);
+	 compat_kunmap_frag(frag);
 
 	 if (err) {
 	    return err;
 	 }
 	 csum = csum_block_add(csum, tmpCsum, curr - buf);
-	 curr += frag->size;
+	 curr += compat_skb_frag_size(frag);
       }
    }
 

vmnet-only/vm_device_version.h

@@ -35,6 +35,8 @@
 #endif
 #endif
 
+#include <linux/pci_ids.h>
+
 /* LSILogic 53C1030 Parallel SCSI controller
  * LSILogic SAS1068 SAS controller
  */
@@ -53,7 +55,10 @@
  *    VMware HD Audio codec
  *    VMware HD Audio controller
  */
+#ifndef PCI_VENDOR_ID_VMWARE
 #define PCI_VENDOR_ID_VMWARE                    0x15AD
+#endif
+
 #define PCI_DEVICE_ID_VMWARE_SVGA2              0x0405
 #define PCI_DEVICE_ID_VMWARE_SVGA               0x0710
 #define PCI_DEVICE_ID_VMWARE_VGA                0x0711
@@ -70,7 +75,11 @@
 #define PCI_DEVICE_ID_VMWARE_1394               0x0780
 #define PCI_DEVICE_ID_VMWARE_BRIDGE             0x0790
 #define PCI_DEVICE_ID_VMWARE_ROOTPORT           0x07A0
+
+#ifndef PCI_DEVICE_ID_VMWARE_VMXNET3
 #define PCI_DEVICE_ID_VMWARE_VMXNET3            0x07B0
+#endif
+
 #define PCI_DEVICE_ID_VMWARE_PVSCSI             0x07C0
 #define PCI_DEVICE_ID_VMWARE_82574              0x07D0
 #define PCI_DEVICE_ID_VMWARE_AHCI               0x07E0