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simplify AppleRTC patch by RodionS

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Signed-off-by: SergeySlice <sergey.slice@gmail.com>
This commit is contained in:
SergeySlice 2020-05-02 19:00:31 +03:00
parent abc41b5b64
commit 5ed90999d2
3 changed files with 40 additions and 25 deletions
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2
rEFIt_UEFI/Platform/kernel_patcher.h
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@ -173,7 +173,7 @@ class LOADER_ENTRY;
// Searches Source for Search pattern of size SearchSize
// and returns the number of occurences.
//
UINTN SearchAndCount(UINT8 *Source, UINT64 SourceSize, UINT8 *Search, UINTN SearchSize);
UINTN SearchAndCount(const UINT8 *Source, UINT64 SourceSize, const UINT8 *Search, UINTN SearchSize);
BOOLEAN CompareMemMask(const UINT8 *Source, const UINT8 *Search, UINTN SearchSize, const UINT8 *Mask, UINTN MaskSize);
VOID CopyMemMask(UINT8 *Dest, const UINT8 *Replace, const UINT8 *Mask, UINTN SearchSize);

16
rEFIt_UEFI/Platform/kext_inject.cpp
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@ -884,20 +884,20 @@ EFI_STATUS LOADER_ENTRY::InjectKexts(IN UINT32 deviceTreeP, IN UINT32* deviceTre
//
// Snow Leopard i386
UINT8 KBESnowSearchEXT_i386[] = { 0xE8, 0xED, 0xF9, 0xFF, 0xFF, 0xEB, 0x08, 0x89, 0x1C, 0x24 };
UINT8 KBESnowReplaceEXT_i386[] = { 0xE8, 0xED, 0xF9, 0xFF, 0xFF, 0x90, 0x90, 0x89, 0x1C, 0x24 };
const UINT8 KBESnowSearchEXT_i386[] = { 0xE8, 0xED, 0xF9, 0xFF, 0xFF, 0xEB, 0x08, 0x89, 0x1C, 0x24 };
const UINT8 KBESnowReplaceEXT_i386[] = { 0xE8, 0xED, 0xF9, 0xFF, 0xFF, 0x90, 0x90, 0x89, 0x1C, 0x24 };
// Snow Leopard X64
UINT8 KBESnowSearchEXT_X64[] = { 0xE8, 0x5A, 0xFB, 0xFF, 0xFF, 0xEB, 0x08, 0x48, 0x89, 0xDF };
UINT8 KBESnowReplaceEXT_X64[] = { 0xE8, 0x5A, 0xFB, 0xFF, 0xFF, 0x90, 0x90, 0x48, 0x89, 0xDF };
const UINT8 KBESnowSearchEXT_X64[] = { 0xE8, 0x5A, 0xFB, 0xFF, 0xFF, 0xEB, 0x08, 0x48, 0x89, 0xDF };
const UINT8 KBESnowReplaceEXT_X64[] = { 0xE8, 0x5A, 0xFB, 0xFF, 0xFF, 0x90, 0x90, 0x48, 0x89, 0xDF };
// Lion i386
UINT8 KBELionSearchEXT_i386[] = { 0xE8, 0xAA, 0xFB, 0xFF, 0xFF, 0xEB, 0x08, 0x89, 0x34, 0x24 };
UINT8 KBELionReplaceEXT_i386[] = { 0xE8, 0xAA, 0xFB, 0xFF, 0xFF, 0x90, 0x90, 0x89, 0x34, 0x24 };
const UINT8 KBELionSearchEXT_i386[] = { 0xE8, 0xAA, 0xFB, 0xFF, 0xFF, 0xEB, 0x08, 0x89, 0x34, 0x24 };
const UINT8 KBELionReplaceEXT_i386[] = { 0xE8, 0xAA, 0xFB, 0xFF, 0xFF, 0x90, 0x90, 0x89, 0x34, 0x24 };
// Lion X64
UINT8 KBELionSearchEXT_X64[] = { 0xE8, 0x0C, 0xFD, 0xFF, 0xFF, 0xEB, 0x08, 0x48, 0x89, 0xDF };
UINT8 KBELionReplaceEXT_X64[] = { 0xE8, 0x0C, 0xFD, 0xFF, 0xFF, 0x90, 0x90, 0x48, 0x89, 0xDF };
const UINT8 KBELionSearchEXT_X64[] = { 0xE8, 0x0C, 0xFD, 0xFF, 0xFF, 0xEB, 0x08, 0x48, 0x89, 0xDF };
const UINT8 KBELionReplaceEXT_X64[] = { 0xE8, 0x0C, 0xFD, 0xFF, 0xFF, 0x90, 0x90, 0x48, 0x89, 0xDF };
//

45
rEFIt_UEFI/Platform/kext_patcher.cpp
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@ -9,6 +9,8 @@
#include "kernel_patcher.h"
#define OLD_METHOD 0
#ifndef DEBUG_ALL
#define KEXT_DEBUG 0
@ -29,10 +31,10 @@
// Searches Source for Search pattern of size SearchSize
// and returns the number of occurences.
//
UINTN SearchAndCount(UINT8 *Source, UINT64 SourceSize, UINT8 *Search, UINTN SearchSize)
UINTN SearchAndCount(const UINT8 *Source, UINT64 SourceSize, const UINT8 *Search, UINTN SearchSize)
{
UINTN NumFounds = 0;
UINT8 *End = Source + SourceSize;
const UINT8 *End = Source + SourceSize;
while (Source < End) {
if (CompareMem(Source, Search, SearchSize) == 0) {
@ -477,24 +479,24 @@ VOID LOADER_ENTRY::AppleIntelCPUPMPatch(UINT8 *Driver, UINT32 DriverSize, CHAR8
// http://www.insanelymac.com/forum/index.php?showtopic=253992
// http://www.insanelymac.com/forum/index.php?showtopic=276066
//
#if OLD_METHOD
const UINT8 LionSearch_X64[] = { 0x75, 0x30, 0x44, 0x89, 0xf8 };
const UINT8 LionReplace_X64[] = { 0xeb, 0x30, 0x44, 0x89, 0xf8 };
STATIC UINT8 LionSearch_X64[] = { 0x75, 0x30, 0x44, 0x89, 0xf8 };
STATIC UINT8 LionReplace_X64[] = { 0xeb, 0x30, 0x44, 0x89, 0xf8 };
const UINT8 LionSearch_i386[] = { 0x75, 0x3d, 0x8b, 0x75, 0x08 };
const UINT8 LionReplace_i386[] = { 0xeb, 0x3d, 0x8b, 0x75, 0x08 };
STATIC UINT8 LionSearch_i386[] = { 0x75, 0x3d, 0x8b, 0x75, 0x08 };
STATIC UINT8 LionReplace_i386[] = { 0xeb, 0x3d, 0x8b, 0x75, 0x08 };
STATIC UINT8 MLSearch[] = { 0x75, 0x30, 0x89, 0xd8 };
STATIC UINT8 MLReplace[] = { 0xeb, 0x30, 0x89, 0xd8 };
const UINT8 MLSearch[] = { 0x75, 0x30, 0x89, 0xd8 };
const UINT8 MLReplace[] = { 0xeb, 0x30, 0x89, 0xd8 };
// SunKi: 10.9 - 10.14.3
STATIC UINT8 MavMoj3Search[] = { 0x75, 0x2e, 0x0f, 0xb6 };
STATIC UINT8 MavMoj3Replace[] = { 0xeb, 0x2e, 0x0f, 0xb6 };
const UINT8 MavMoj3Search[] = { 0x75, 0x2e, 0x0f, 0xb6 };
const UINT8 MavMoj3Replace[] = { 0xeb, 0x2e, 0x0f, 0xb6 };
// RodionS: 10.14.4+ / 10.15 DB1
STATIC UINT8 Moj4CataSearch[] = { 0x75, 0x33, 0x0f, 0xb7 };
STATIC UINT8 Moj4CataReplace[] = { 0xeb, 0x33, 0x0f, 0xb7 };
const UINT8 Moj4CataSearch[] = { 0x75, 0x33, 0x0f, 0xb7 };
const UINT8 Moj4CataReplace[] = { 0xeb, 0x33, 0x0f, 0xb7 };
#endif
//
// We can not rely on OSVersion global variable for OS version detection,
// since in some cases it is not correct (install of ML from Lion, for example).
@ -505,7 +507,7 @@ STATIC UINT8 Moj4CataReplace[] = { 0xeb, 0x33, 0x0f, 0xb7 };
VOID LOADER_ENTRY::AppleRTCPatch(UINT8 *Driver, UINT32 DriverSize, CHAR8 *InfoPlist, UINT32 InfoPlistSize)
{
#if OLD_METHOD
UINTN Num = 0;
UINTN NumLion_X64 = 0;
UINTN NumLion_i386 = 0;
@ -555,6 +557,19 @@ VOID LOADER_ENTRY::AppleRTCPatch(UINT8 *Driver, UINT32 DriverSize, CHAR8 *InfoPl
} else {
DBG_RT("==> Patterns not found - patching NOT done.\n");
}
#else
//RodionS
UINTN procLen = DriverSize;
UINTN procLocation = searchProc(Driver, "updateChecksum", &procLen);
DBG_RT("AppleRTC:");
if (procLocation != 0) {
Driver[procLocation] = 0xC3;
DBG_RT(" patched\n");
} else {
DBG_RT(" failed\n");
}
#endif
Stall(5000000);
}