[PATCH v2 5/6] Remove CoInstaller from INF

[Owen Smith <owen.smith@xxxxxxxxx>]

Windows 11 22H2 WHQL requires INF files pass "InfVerif /k", which highlights
several issues
- PnpLockdown=1 needs to be specified
- CoInstallers are no longer allowed

The CoInstaller has several functions that will need alternative solutions:
- The AllowUpdate mechanism is no longer possible
- The ability to block upgrades from installing on a different vendor's drivers
- The safety checks that ensure interface versionings remain compatible
- The cleanup of xenbus_monitor on uninstall.

Interface safety checks need to be handled by changes to child device bindings,
and assuming upgrade via emulated devices is safe. The unplug keys are cleared
in the INF to revert to emulated on the next boot, incase the current child
drivers rely on an interface that is no longer present (note: in this case,
child drivers will need updating).

Signed-off-by: Owen Smith <owen.smith@xxxxxxxxx>
---
 src/xenbus.inf | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/src/xenbus.inf b/src/xenbus.inf
index 59eab7b..bfe0025 100644
--- a/src/xenbus.inf
+++ b/src/xenbus.inf
@@ -37,10 +37,10 @@ Provider=%Vendor%
 CatalogFile=xenbus.cat
 
DriverVer=@INF_DATE@,@MAJOR_VERSION@.@MINOR_VERSION@.@MICRO_VERSION@.@BUILD_NUMBER@
 DriverPackageDisplayName=%DiskDesc%
+PnpLockdown=1
 
 [DestinationDirs] 
 DefaultDestDir=12 
-CoInst_CopyFiles=11
 Monitor_CopyFiles=11
 
 [SourceDisksNames]
@@ -50,7 +50,6 @@ Monitor_CopyFiles=11
 xen.sys=0,,
 xenbus.sys=0,,
 xenfilt.sys=0,,
-xenbus_coinst.dll=0,,
 xenbus_monitor.exe=0,,
 xenbus_monitor.dll=0,,
 
@@ -59,9 +58,6 @@ xen.sys
 xenbus.sys
 xenfilt.sys
 
-[CoInst_CopyFiles]
-xenbus_coinst_@MAJOR_VERSION@_@MINOR_VERSION@_@MICRO_VERSION@_@BUILD_NUMBER@.dll,xenbus_coinst.dll
-
 [Monitor_CopyFiles]
 
xenbus_monitor_@MAJOR_VERSION@_@MINOR_VERSION@_@MICRO_VERSION@_@BUILD_NUMBER@.exe,xenbus_monitor.exe
 
xenbus_monitor_@MAJOR_VERSION@_@MINOR_VERSION@_@MICRO_VERSION@_@BUILD_NUMBER@.dll,xenbus_monitor.dll
@@ -107,6 +103,10 @@ HKR,"Interrupt 
Management\MessageSignaledInterruptProperties",,0x00000010
 HKR,"Interrupt 
Management\MessageSignaledInterruptProperties","MSISupported",0x00010001,1
 HKR,"Interrupt Management\GroupPolicy",,0x00010001,1
 
+[XenBus_Unplug]
+HKLM,%UnplugKey%,"NICS",0x00010001,0
+HKLM,%UnplugKey%,"DISKS",0x00010001,0
+
 [XenFilt_Service] 
 DisplayName=%XenFiltName%
 ServiceType=%SERVICE_KERNEL_DRIVER% 
@@ -144,13 +144,6 @@ AddReg=Monitor_EventLog_AddReg
 
HKR,,EventMessageFile,0x00020000,"%%SystemRoot%%\System32\xenbus_monitor_@MAJOR_VERSION@_@MINOR_VERSION@_@MICRO_VERSION@_@BUILD_NUMBER@.dll"
 HKR,,TypesSupported,0x00010001,7
 
-[XenBus_Inst.CoInstallers]
-CopyFiles=CoInst_CopyFiles
-AddReg=CoInst_AddReg
-
-[CoInst_AddReg]
-HKR,,CoInstallers32,0x00010000,"xenbus_coinst_@MAJOR_VERSION@_@MINOR_VERSION@_@MICRO_VERSION@_@BUILD_NUMBER@.dll,Entry"
-
 [Strings] 
 
 Vendor="@VENDOR_NAME@" 
@@ -160,6 +153,7 @@ XenFiltName="@PRODUCT_NAME@ Generic Bus Filter"
 MonitorName="@PRODUCT_NAME@ PV Driver Monitor"
 MonitorDesc="Provides support for @PRODUCT_NAME@ PV drivers"
 RequestKey="SYSTEM\CurrentControlSet\Services\xenbus_monitor\Request"
+UnplugKey="SYSTEM\CurrentControlSet\Services\XEN\Unplug"
 DialogTitle="@PRODUCT_NAME@"
 DialogText="needs to restart the system to complete installation."
 DialogQuestion="Press 'Yes' to restart the system now or 'No' if you plan to 
restart the system later."
-- 
2.41.0.windows.3