Laszlo Ersek c3d5d800d7 MdeModulePkg/EhciDxe: fix host controller reset condition in BindingStart ... Commit 09943f5ecc ("MdeModulePkg: Skip to manage usb debug port in EDKII EHCI driver if it's used by usb debug port driver", 2012-04-28) made the host controller reset in EhcDriverBindingStart() conditional. The intent was to avoid the reset when - one of the USB ports on the host controller was a Debug Port, AND - the Debug Port was in use. This translates to the following positive condition: reset the controller only if: - no USB port on the host controller is a Debug Port, OR - the Debug Port is not in use. Commit 09943f5ecc failed to implement the first subcondition, and thus the result is too strict now (for resetting the host controller). Relax it to the correct condition. This issue was found by Steven Shi on QEMU. QEMU's EHCI device model does not have a Debug Port. In repeated disconnect / connect cycles, the controller is never reset in EhcDriverBindingStart(), therefore the devices on the controller are never re-enumerated after a disconnect. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Steven Shi <steven.shi@intel.com> Reported-by: Steven Shi <steven.shi@intel.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1129 Fixes: 09943f5ecc Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Star Zeng <star.zeng@intel.com> Tested-by: Steven Shi <steven.shi@intel.com>		2018-09-05 14:00:12 +02:00
..
Application	MdeModulePkg UiApp: Remove a redundant function and a variable	2018-08-21 16:29:11 +08:00
Bus	MdeModulePkg/EhciDxe: fix host controller reset condition in BindingStart	2018-09-05 14:00:12 +02:00
Core	MdeModulePkg PeiCore: Fix VS2012 build failure	2018-09-05 13:17:10 +08:00
Include	MdeModulePkg/Network: Add 32bit subnet mask support for IP4 PXE boot.	2018-09-03 08:36:55 +08:00
Library	MdeModulePkg/Network: Add 32bit subnet mask support for IP4 PXE boot.	2018-09-03 08:36:55 +08:00
Logo	MdeModulePkg: Clean up source files	2018-06-28 11:19:45 +08:00
Universal	MdeModulePkg/Setup: Fix incorrect size used in AllocateCopyPool	2018-09-04 09:14:46 +08:00
MdeModulePkg.dec	MdeModulePkg/MdeModulePkg.dec: add new settings for PCDs	2018-08-30 07:22:29 +08:00
MdeModulePkg.dsc	MdeModulePkg: Remove DxeSmmPerformanceLib	2018-08-06 13:58:54 +08:00
MdeModulePkg.uni	MdeModulePkg/Variable/RuntimeDxe: introduce PcdMaxVolatileVariableSize	2018-03-30 21:17:07 +02:00
MdeModulePkgExtra.uni	MdeModulePkg: Clean up source files	2018-06-28 11:19:45 +08:00