diff --git a/src/arch/arm/linux/se_workload.cc b/src/arch/arm/linux/se_workload.cc
index e2df5374a6..04d2382661 100644
--- a/src/arch/arm/linux/se_workload.cc
+++ b/src/arch/arm/linux/se_workload.cc
@@ -272,7 +272,7 @@ class SyscallTable32 : public SyscallDescTable<EmuLinux::SyscallABI32>
         { base + 142, "newselect" },
         { base + 143, "flock" },
         { base + 144, "msync" },
-        { base + 145, "readv" },
+        { base + 145, "readv", readvFunc<ArmLinux32> },
         { base + 146, "writev", writevFunc<ArmLinux32> },
         { base + 147, "getsid" },
         { base + 148, "fdatasync" },
@@ -570,7 +570,7 @@ class SyscallTable64 : public SyscallDescTable<EmuLinux::SyscallABI64>
         {   base + 62, "lseek", lseekFunc<ArmLinux64> },
         {   base + 63, "read", readFunc<ArmLinux64> },
         {   base + 64, "write", writeFunc<ArmLinux64> },
-        {   base + 65, "readv" },
+        {   base + 65, "readv", readvFunc<ArmLinux64> },
         {   base + 66, "writev", writevFunc<ArmLinux64> },
         {   base + 67, "pread64", pread64Func<ArmLinux64> },
         {   base + 68, "pwrite64", pwrite64Func<ArmLinux64> },
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index 13f7cf09fb..909b566b96 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -289,7 +289,7 @@ brkFunc(SyscallDesc *desc, ThreadContext *tc, VPtr<> new_brk)
 }
 
 SyscallReturn
-setTidAddressFunc(SyscallDesc *desc, ThreadContext *tc, uint64_t tidPtr)
+setTidAddressFunc(SyscallDesc *desc, ThreadContext *tc, VPtr<> tidPtr)
 {
     auto process = tc->getProcessPtr();
 
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 02d032bcd7..b72d12025b 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -149,7 +149,7 @@ SyscallReturn exitGroupFunc(SyscallDesc *desc, ThreadContext *tc, int status);
 
 /// Target set_tid_address() handler.
 SyscallReturn setTidAddressFunc(SyscallDesc *desc, ThreadContext *tc,
-                                uint64_t tidPtr);
+                                VPtr<> tidPtr);
 
 /// Target getpagesize() handler.
 SyscallReturn getpagesizeFunc(SyscallDesc *desc, ThreadContext *tc);
@@ -1920,7 +1920,7 @@ fstatfsFunc(SyscallDesc *desc, ThreadContext *tc,
 template <class OS>
 SyscallReturn
 readvFunc(SyscallDesc *desc, ThreadContext *tc,
-          int tgt_fd, uint64_t tiov_base,
+          int tgt_fd, VPtr<> tiov_base,
           typename OS::size_t count)
 {
     auto p = tc->getProcessPtr();
@@ -1958,7 +1958,7 @@ readvFunc(SyscallDesc *desc, ThreadContext *tc,
 template <class OS>
 SyscallReturn
 writevFunc(SyscallDesc *desc, ThreadContext *tc,
-           int tgt_fd, uint64_t tiov_base,
+           int tgt_fd, VPtr<> tiov_base,
            typename OS::size_t count)
 {
     auto p = tc->getProcessPtr();