Changes since v2: - drop common declaration of EfiResetSystemLib since its only user is a DXE_RUNTIME_DRIVER - adhere to EDK2 coding style in patch #2
Changes since v1: Instead of disallowing the use of ArmVExpressSysConfigLib by runtime drivers, just let it return UNSUPPORTED when invoked after switching to virtual mode. The PL031 driver already deals with that case anyway, so the patch against that has been dropped. This change alone prevents the crash on Foundation model, but since now, it won't actually reset or power off the machine, the PSCI change is retained as well. ----- v1 blurb ----- As it turns out, the poweroff crash on the Foundation model was caused by the fact that the default VExpress EfiResetSystemLib expects to find the syscfg MMIO register block at its boot time ID mapped offset. However, at runtime, it is only accessible if it is runtime remapped, which is cumbersome since the same registers control all kinds of system features that are under control of the OS. So this series removes the ArmVExpressSysConfigLib dependencies from drivers that are used at runtime. For the RTC driver, the dependency is simply dropped. For the reset driver, we use PSCI calls into EL3 instead. Note that this requires PSCI compliant firmware to be running in EL3. Ard Biesheuvel (2): ArmVExpressPkg: use PSCI for system reset at runtime ArmVExpressPkg: disallow the use of ArmVExpressSysConfigLib at runtime ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc | 10 +++++++++- .../Library/ArmVExpressSysConfigLib/ArmVExpressSysConfig.c | 6 ++++++ .../ArmVExpressSysConfigLib/ArmVExpressSysConfigLib.inf | 1 + 3 files changed, 16 insertions(+), 1 deletion(-) -- 1.9.1 ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
