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Add IOUSBHostFamily patch for XHCI patch

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This commit is contained in:
vit9696 2019-03-27 01:30:29 +03:00
parent bbea9dba45
commit 1dc487c6da
1 changed files with 94 additions and 19 deletions
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113
Library/OcAppleKernelLib/CommonPatches.c
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@ -174,15 +174,107 @@ mRemoveUsbLimitV2Patch = {
.Skip = 0
};
STATIC
UINT8
mRemoveUsbLimitIoP1Find[] = {
0x0f, 0x0f, 0x87
};
STATIC
UINT8
mRemoveUsbLimitIoP1Replace[] = {
0x40, 0x0f, 0x87
};
STATIC
PATCHER_GENERIC_PATCH
mRemoveUsbLimitIoP1Patch = {
.Base = "__ZN16AppleUSBHostPort15setPortLocationEj",
.Find = mRemoveUsbLimitIoP1Find,
.Mask = NULL,
.Replace = mRemoveUsbLimitIoP1Replace,
.ReplaceMask = NULL,
.Size = sizeof (mRemoveUsbLimitIoP1Replace),
.Count = 1,
.Skip = 0
};
EFI_STATUS
PatchUsbXhciPortLimit (
IN OUT PRELINKED_CONTEXT *Context
)
{
EFI_STATUS Status;
EFI_STATUS Status2;
PATCHER_CONTEXT Patcher;
//
// On 10.14.4 and newer IOUSBHostFamily also needs limit removal.
// Thanks to ydeng discovering this.
//
Status = PatcherInitContextFromPrelinked (
&Patcher,
Context,
"com.apple.iokit.IOUSBHostFamily"
);
if (!EFI_ERROR (Status)) {
Status = PatcherApplyGenericPatch (&Patcher, &mRemoveUsbLimitIoP1Patch);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "Failed to apply P1 patch com.apple.iokit.IOUSBHostFamily - %r\n", Status));
} else {
DEBUG ((DEBUG_INFO, "Patch success com.apple.iokit.IOUSBHostFamily\n"));
}
} else {
DEBUG ((DEBUG_INFO, "Failed to find com.apple.iokit.IOUSBHostFamily - %r\n", Status));
}
//
// TODO: Implement some locationID hack in IOUSBHFamily.
// The location ID is a 32 bit number which is unique among all USB devices in the system,
// and which will not change on a system reboot unless the topology of the bus itself changes.
// See AppleUSBHostPort::setPortLocation():
// locationId = getLocationId();
// if (!(locationId & 0xF)) {
// int32_t shift = 20;
// while (locationId & (0xF << shift)) {
// shift -= 4;
// if (Shift < 0) { setLocationId(locationId); return; }
// }
// setLocationId(locationId | ((portNumber & 0xF) << shift));
// }
// The value (e.g. 0x14320000) is represented as follows: 0xAABCDEFG
// AA — Ctrl number 8 bits (e.g. 0x14, aka XHCI)
// B - Port number 4 bits (e.g. 0x3, aka SS03)
// C~F - Bus number 4 bits (e.g. 0x2, aka IOUSBHostHIDDevice)
//
// C~F are filled as many times as many USB Hubs are there on the port.
//
Status = PatcherInitContextFromPrelinked (
&Patcher,
Context,
"com.apple.driver.usb.AppleUSBXHCIPCI"
);
if (!EFI_ERROR (Status)) {
Status = PatcherApplyGenericPatch (&Patcher, &mRemoveUsbLimitV2Patch);
if (!EFI_ERROR (Status)) {
//
// We do not need to patch com.apple.driver.usb.AppleUSBXHCI if this patch was successful.
// Only legacy systems require com.apple.driver.usb.AppleUSBXHCI to be patched.
//
DEBUG ((DEBUG_INFO, "Patch success com.apple.driver.usb.AppleUSBXHCIPCI\n"));
return EFI_SUCCESS;
} else {
DEBUG ((DEBUG_INFO, "Failed to apply patch com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status));
}
} else {
DEBUG ((DEBUG_INFO, "Failed to find com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status));
}
//
// If we are here, we are on legacy 10.13 or below, try the oldest patch.
//
Status = PatcherInitContextFromPrelinked (
&Patcher,
Context,
@ -200,24 +292,7 @@ PatchUsbXhciPortLimit (
DEBUG ((DEBUG_INFO, "Failed to find com.apple.driver.usb.AppleUSBXHCI - %r\n", Status));
}
Status2 = PatcherInitContextFromPrelinked (
&Patcher,
Context,
"com.apple.driver.usb.AppleUSBXHCIPCI"
);
if (!EFI_ERROR (Status2)) {
Status2 = PatcherApplyGenericPatch (&Patcher, &mRemoveUsbLimitV2Patch);
if (EFI_ERROR (Status2)) {
DEBUG ((DEBUG_INFO, "Failed to apply patch com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status2));
} else {
DEBUG ((DEBUG_INFO, "Patch success com.apple.driver.usb.AppleUSBXHCIPCI\n"));
}
} else {
DEBUG ((DEBUG_INFO, "Failed to find com.apple.driver.usb.AppleUSBXHCIPCI - %r\n", Status2));
}
return !EFI_ERROR (Status) ? Status : Status2;
return Status;
}
STATIC