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remake some patches to symbolic

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Signed-off-by: SergeySlice <sergey.slice@gmail.com>
This commit is contained in:
SergeySlice 2020-05-09 08:51:12 +03:00
parent 5cb5243b79
commit c36b0438b3
1 changed files with 28 additions and 21 deletions
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49
rEFIt_UEFI/Platform/kernel_patcher.cpp
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@ -1040,9 +1040,9 @@ BOOLEAN LOADER_ENTRY::KernelLapicPatch_64(VOID *kernelData)
}
}
if (KernelAndKextPatches->KPDebug) {
gBS->Stall(3000000);
}
// if (KernelAndKextPatches->KPDebug) {
Stall(3000000);
// }
return TRUE;
}
@ -1087,9 +1087,9 @@ BOOLEAN LOADER_ENTRY::KernelLapicPatch_32(VOID *kernelData)
}
}
if (KernelAndKextPatches->KPDebug) {
gBS->Stall(3000000);
}
// if (KernelAndKextPatches->KPDebug) {
Stall(3000000);
// }
return TRUE;
}
@ -1306,25 +1306,28 @@ BOOLEAN LOADER_ENTRY::BroadwellEPM(VOID *kernelData)
KernelCPUIDPatch(kern);
DBG("Searching _xcpm_pkg_scope_msr ...\n");
// proc: _xcpm_init
// proc: _xcpm_init @4687b0
// ffffff8000468825 488D3D54527F00 lea rdi, qword [ds:_xcpm_pkg_scope_msrs]
// ffffff800046882c BE07000000 mov esi, 0x7
// ffffff8000468831 31D2 xor edx, edx
// ffffff8000468833 E838FDFFFF call sub_ffffff8000468570
if (os_version >= AsciiOSVersionToUint64("10.12")) {
// 10.12+
patchLocation = 0; // clean out the value just in case
for (i = 0; i < 0x1000000; i++) {
if (kern[i+0] == 0xBE && kern[i+1] == 0x07 && kern[i+2] == 0x00 && kern[i+3] == 0x00 &&
kern[i+4] == 0x00 && kern[i+5] == 0x31 && kern[i+6] == 0xD2 && kern[i+7] == 0xE8) {
patchLocation = i+7;
DBG("Found _xcpm_pkg_scope_msr\n");
break;
}
}
// patchLocation = 0; // clean out the value just in case
// for (i = 0; i < 0x1000000; i++) {
// if (kern[i+0] == 0xBE && kern[i+1] == 0x07 && kern[i+2] == 0x00 && kern[i+3] == 0x00 &&
// kern[i+4] == 0x00 && kern[i+5] == 0x31 && kern[i+6] == 0xD2 && kern[i+7] == 0xE8) {
// patchLocation = i+7;
// DBG("Found _xcpm_pkg_scope_msr\n");
// break;
// }
UINTN procLocation = searchProc(Kernel, "xcpm_init");
UINTN symbol1 = searchProc(Kernel, "_xcpm_pkg_scope_msrs");
patchLocation = FindRelative32(Kernel, procLocation, 0x100, symbol1);
if (patchLocation) {
for (i = 0; i < 5; i++) {
for (i = 7; i < 12; i++) {
kern[patchLocation+i] = 0x90;
}
DBG("Applied _xcpm_pkg_scope_msr patch\n");
@ -1571,18 +1574,22 @@ BOOLEAN LOADER_ENTRY::KernelIvyE5XCPM(VOID *kernelData)
applyKernPatch(kern, find, sizeof(find), repl, comment);
} else {
// 10.10+
patchLocation = 0; // clean out the value just in case
for (i = 0; i < 0x1000000; i++) {
// patchLocation = 0; // clean out the value just in case
UINTN procLocation = searchProc(kern, "xcpm_init");
UINTN symbol1 = searchProc(kern, comment);
patchLocation = FindRelative32(kern, procLocation, 0x100, symbol1);
/* for (i = 0; i < 0x1000000; i++) {
if (kern[i+0] == 0xBE && kern[i+1] == 0x07 && kern[i+2] == 0x00 && kern[i+3] == 0x00 &&
kern[i+4] == 0x00 && kern[i+5] == 0x31 && kern[i+6] == 0xD2 && kern[i+7] == 0xE8) {
patchLocation = i+7;
DBG("Found _xcpm_pkg_scope_msr\n");
break;
}
}
} */
if (patchLocation) {
for (i = 0; i < 5; i++) {
for (i = 7; i < 12; i++) {
kern[patchLocation+i] = 0x90;
}
DBG("Applied _xcpm_pkg_scope_msr patch\n");