XMRigCC 2.0 (#263)

# 2.0.0
**Thx to @xmrig and @SChernykh awesome work!**
* Full Rebase on XMRig 3.1.1 
     * randomX/wow/XL
     * NUMA support
     * flexible multi algorithm configuration
     * unlimited switching between incompatible algorithms at runtime
* Argon2, UPX2 (Nice hashrate improvement) and CN-Conceal support integrated like in previous version
* 5-10% Hashrate improvement on ARMv8 CPUs when mining CN based algos compared to stock xmrig
* Fully compatible to XMRigCCServer 1.9.5 no server upgrade needed!
**New XMRigCCServer will be released soon with new features**

src/crypto/common/VirtualMemory_win.cpp

@@ -0,0 +1,234 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018      Lee Clagett <https://github.com/vtnerd>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2018-2019 tevador     <tevador@gmail.com>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   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 Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <winsock2.h>
+#include <windows.h>
+#include <ntsecapi.h>
+#include <tchar.h>
+
+
+#include "base/io/log/Log.h"
+#include "crypto/common/portable/mm_malloc.h"
+#include "crypto/common/VirtualMemory.h"
+
+
+/*****************************************************************
+SetLockPagesPrivilege: a function to obtain or
+release the privilege of locking physical pages.
+
+Inputs:
+
+HANDLE hProcess: Handle for the process for which the
+privilege is needed
+
+BOOL bEnable: Enable (TRUE) or disable?
+
+Return value: TRUE indicates success, FALSE failure.
+
+*****************************************************************/
+/**
+ * AWE Example: https://msdn.microsoft.com/en-us/library/windows/desktop/aa366531(v=vs.85).aspx
+ * Creating a File Mapping Using Large Pages: https://msdn.microsoft.com/en-us/library/aa366543(VS.85).aspx
+ */
+static BOOL SetLockPagesPrivilege() {
+    HANDLE token;
+
+    if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token) != TRUE) {
+        return FALSE;
+    }
+
+    TOKEN_PRIVILEGES tp;
+    tp.PrivilegeCount = 1;
+    tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
+
+    if (LookupPrivilegeValue(nullptr, SE_LOCK_MEMORY_NAME, &(tp.Privileges[0].Luid)) != TRUE) {
+        return FALSE;
+    }
+
+    BOOL rc = AdjustTokenPrivileges(token, FALSE, (PTOKEN_PRIVILEGES) &tp, 0, nullptr, nullptr);
+    if (rc != TRUE || GetLastError() != ERROR_SUCCESS) {
+        return FALSE;
+    }
+
+    CloseHandle(token);
+
+    return TRUE;
+}
+
+
+static LSA_UNICODE_STRING StringToLsaUnicodeString(LPCTSTR string) {
+    LSA_UNICODE_STRING lsaString;
+
+    DWORD dwLen = (DWORD) wcslen(string);
+    lsaString.Buffer = (LPWSTR) string;
+    lsaString.Length = (USHORT)((dwLen) * sizeof(WCHAR));
+    lsaString.MaximumLength = (USHORT)((dwLen + 1) * sizeof(WCHAR));
+    return lsaString;
+}
+
+
+static BOOL ObtainLockPagesPrivilege() {
+    HANDLE token;
+    PTOKEN_USER user = nullptr;
+
+    if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &token) == TRUE) {
+        DWORD size = 0;
+
+        GetTokenInformation(token, TokenUser, nullptr, 0, &size);
+        if (size) {
+            user = (PTOKEN_USER) LocalAlloc(LPTR, size);
+        }
+
+        GetTokenInformation(token, TokenUser, user, size, &size);
+        CloseHandle(token);
+    }
+
+    if (!user) {
+        return FALSE;
+    }
+
+    LSA_HANDLE handle;
+    LSA_OBJECT_ATTRIBUTES attributes;
+    ZeroMemory(&attributes, sizeof(attributes));
+
+    BOOL result = FALSE;
+    if (LsaOpenPolicy(nullptr, &attributes, POLICY_ALL_ACCESS, &handle) == 0) {
+        LSA_UNICODE_STRING str = StringToLsaUnicodeString(_T(SE_LOCK_MEMORY_NAME));
+
+        if (LsaAddAccountRights(handle, user->User.Sid, &str, 1) == 0) {
+            LOG_NOTICE("Huge pages support was successfully enabled, but reboot required to use it");
+            result = TRUE;
+        }
+
+        LsaClose(handle);
+    }
+
+    LocalFree(user);
+    return result;
+}
+
+
+static BOOL TrySetLockPagesPrivilege() {
+    if (SetLockPagesPrivilege()) {
+        return TRUE;
+    }
+
+    return ObtainLockPagesPrivilege() && SetLockPagesPrivilege();
+}
+
+
+int xmrig::VirtualMemory::m_globalFlags = 0;
+
+
+xmrig::VirtualMemory::VirtualMemory(size_t size, bool hugePages, size_t align) :
+    m_size(VirtualMemory::align(size))
+{
+    if (hugePages) {
+        m_scratchpad = static_cast<uint8_t*>(allocateLargePagesMemory(m_size));
+        if (m_scratchpad) {
+            m_flags |= HUGEPAGES;
+
+            return;
+        }
+    }
+
+    m_scratchpad = static_cast<uint8_t*>(_mm_malloc(m_size, align));
+}
+
+
+xmrig::VirtualMemory::~VirtualMemory()
+{
+    if (!m_scratchpad) {
+        return;
+    }
+
+    if (isHugePages()) {
+        freeLargePagesMemory(m_scratchpad, m_size);
+    }
+    else {
+        _mm_free(m_scratchpad);
+    }
+}
+
+
+void *xmrig::VirtualMemory::allocateExecutableMemory(size_t size)
+{
+    return VirtualAlloc(nullptr, size, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
+}
+
+
+void *xmrig::VirtualMemory::allocateLargePagesMemory(size_t size)
+{
+    const size_t min = GetLargePageMinimum();
+    void *mem        = nullptr;
+
+    if (min > 0) {
+        mem = VirtualAlloc(nullptr, align(size, min), MEM_COMMIT | MEM_RESERVE | MEM_LARGE_PAGES, PAGE_READWRITE);
+    }
+
+    return mem;
+}
+
+
+void xmrig::VirtualMemory::flushInstructionCache(void *p, size_t size)
+{
+    ::FlushInstructionCache(GetCurrentProcess(), p, size);
+}
+
+
+void xmrig::VirtualMemory::freeLargePagesMemory(void *p, size_t)
+{
+    VirtualFree(p, 0, MEM_RELEASE);
+}
+
+
+void xmrig::VirtualMemory::init(bool hugePages)
+{
+    if (!hugePages) {
+        return;
+    }
+
+    m_globalFlags = HUGEPAGES;
+
+    if (TrySetLockPagesPrivilege()) {
+        m_globalFlags |= HUGEPAGES_AVAILABLE;
+    }
+}
+
+
+void xmrig::VirtualMemory::protectExecutableMemory(void *p, size_t size)
+{
+    DWORD oldProtect;
+    VirtualProtect(p, size, PAGE_EXECUTE_READ, &oldProtect);
+}
+
+
+void xmrig::VirtualMemory::unprotectExecutableMemory(void *p, size_t size)
+{
+    DWORD oldProtect;
+    VirtualProtect(p, size, PAGE_EXECUTE_READWRITE, &oldProtect);
+}