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make XCPM patch more symbolic

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Signed-off-by: SergeySlice <sergey.slice@gmail.com>
This commit is contained in:
SergeySlice 2020-05-09 11:36:20 +03:00
parent dc4d0062a8
commit 7e2dcf5583
1 changed files with 54 additions and 4 deletions
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58
rEFIt_UEFI/Platform/kernel_patcher.cpp
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@ -1204,7 +1204,18 @@ BOOLEAN LOADER_ENTRY::HaswellEXCPM()
const UINT8 find[] = { 0x83, 0xC3, 0xBB, 0x83, 0xFB, 0x09 };
const UINT8 repl[] = { 0x83, 0xC3, 0xB8, 0x83, 0xFB, 0x09 };
applyKernPatch(find, sizeof(find), repl, comment);
} else if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
} else {
UINTN procLocation = searchProc(comment);
UINTN featureCall = searchProc("_cpuid_features");
UINTN place = FindRelative32(KernelData, procLocation, 0x100, featureCall);
for (UINTN i = 10; i < 20; ++i) {
if (KernelData[place + i] == 0xC4) {
KernelData[place + i] = 0xC1;
break;
}
}
/*if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
// 10.12 - 10.12.5
const UINT8 find[] = { 0x83, 0xC3, 0xC4, 0x83, 0xFB, 0x22 };
const UINT8 repl[] = { 0x83, 0xC3, 0xC1, 0x83, 0xFB, 0x22 };
@ -1230,6 +1241,7 @@ BOOLEAN LOADER_ENTRY::HaswellEXCPM()
const UINT8 find[] = { 0x3B, 0x7E, 0x2E, 0x80, 0xC3, 0xC4, 0x80, 0xFB, 0x42 };
const UINT8 repl[] = { 0x00, 0x7E, 0x2E, 0x80, 0xC3, 0xC1, 0x80, 0xFB, 0x42 };
applyKernPatch(find, sizeof(find), repl, comment);
*/
}
DBG("Searching _xcpm_pkg_scope_msr ...\n");
@ -1380,6 +1392,16 @@ BOOLEAN LOADER_ENTRY::HaswellLowEndXCPM()
}
*/
comment = "_xcpm_bootstrap";
UINTN procLocation = searchProc(comment);
UINTN featureCall = searchProc("_cpuid_features");
UINTN place = FindRelative32(KernelData, procLocation, 0x100, featureCall);
for (UINTN i = 10; i < 20; ++i) {
if (KernelData[place + i] == 0xC4) {
KernelData[place + i] = 0xC6;
break;
}
}
/*
if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
// 10.12 - 10.12.5
const UINT8 find[] = { 0x83, 0xC3, 0xC4, 0x83, 0xFB, 0x22 };
@ -1392,6 +1414,11 @@ BOOLEAN LOADER_ENTRY::HaswellLowEndXCPM()
applyKernPatch(find, sizeof(find), repl, comment);
} else if (os_version < AsciiOSVersionToUint64("10.15")) {
// 10.13/10.14
// ; Basic Block Input Regs: rbx - Killed Regs: rax
// ffffff80004fa0f7 89D8 mov eax, ebx
// ffffff80004fa0f9 04C4 add al, 0xc4
// ffffff80004fa0fb 3C22 cmp al, 0x22
// ffffff80004fa0fd 7722 jnbe 0xffffff80004fa121
const UINT8 find[] = { 0x89, 0xD8, 0x04, 0xC4, 0x3C, 0x22 };
const UINT8 repl[] = { 0x89, 0xD8, 0x04, 0xC6, 0x3C, 0x22 };
applyKernPatch(find, sizeof(find), repl, comment);
@ -1406,7 +1433,7 @@ BOOLEAN LOADER_ENTRY::HaswellLowEndXCPM()
const UINT8 repl[] = { 0x00, 0x7E, 0x2E, 0x80, 0xC3, 0xC6, 0x80, 0xFB, 0x42 };
applyKernPatch(find, sizeof(find), repl, comment);
}
*/
comment = "_cpuid_set_info_rdmsr";
// PMheart: bytes seem stable as of 10.12
if (os_version >= AsciiOSVersionToUint64("10.12")) {
@ -1479,6 +1506,16 @@ BOOLEAN LOADER_ENTRY::KernelIvyBridgeXCPM()
}
comment = "_xcpm_bootstrap";
UINTN procLocation = searchProc(comment);
UINTN featureCall = searchProc("_cpuid_features");
UINTN place = FindRelative32(KernelData, procLocation, 0x100, featureCall);
for (UINTN i = 10; i < 20; ++i) {
if (KernelData[place + i] == 0xC4) {
KernelData[place + i] = 0xC6;
break;
}
}
/*
if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
// 10.12 - 10.12.5
const UINT8 find[] = { 0x83, 0xC3, 0xC4, 0x83, 0xFB, 0x22 };
@ -1506,7 +1543,7 @@ BOOLEAN LOADER_ENTRY::KernelIvyBridgeXCPM()
const UINT8 repl[] = { 0x00, 0x7E, 0x2E, 0x80, 0xC3, 0xC6, 0x80, 0xFB, 0x42 };
applyKernPatch(find, sizeof(find), repl, comment);
}
*/
DBG("KernelIvyBridgeXCPM() <===\n");
return TRUE;
}
@ -1636,7 +1673,19 @@ BOOLEAN LOADER_ENTRY::KernelIvyE5XCPM()
const UINT8 find[] = { 0x83, 0xC3, 0xBB, 0x83, 0xFB, 0x09 };
const UINT8 repl[] = { 0x83, 0xC3, 0xB9, 0x83, 0xFB, 0x09 };
applyKernPatch(find, sizeof(find), repl, comment);
} else if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
} else {
UINTN procLocation = searchProc(comment);
UINTN featureCall = searchProc("_cpuid_features");
UINTN place = FindRelative32(KernelData, procLocation, 0x100, featureCall);
for (UINTN i = 10; i < 20; ++i) {
if (KernelData[place + i] == 0xC4) {
KernelData[place + i] = 0xC1;
break;
}
}
/* if (os_version <= AsciiOSVersionToUint64("10.12.5")) {
// 10.12 - 10.12.5
const UINT8 find[] = { 0x83, 0xC3, 0xC4, 0x83, 0xFB, 0x22 };
const UINT8 repl[] = { 0x83, 0xC3, 0xC2, 0x83, 0xFB, 0x22 };
@ -1662,6 +1711,7 @@ BOOLEAN LOADER_ENTRY::KernelIvyE5XCPM()
const UINT8 find[] = { 0x3B, 0x7E, 0x2E, 0x80, 0xC3, 0xC4, 0x80, 0xFB, 0x42 };
const UINT8 repl[] = { 0x00, 0x7E, 0x2E, 0x80, 0xC3, 0xC1, 0x80, 0xFB, 0x42 };
applyKernPatch(find, sizeof(find), repl, comment);
*/
}
DBG("KernelIvyE5XCPM() <===\n");