On Mon, Sep 12, 2016 at 06:13:16PM +0000, Peter Stuge wrote: > > If I just erase the first 4KB of its region (0x3000, starts with "$FPT"), > > coreboot boots up fine and reports that "WARNING: ME has bad firmware". > > My Linux payload initializes without any complaints. > > Does it stay operational for more than 30 minutes? [...] > Does it resume after more than 30 minutes from power-on? And from suspend?
Yes, it has been operational for the past few hours and I'm able to suspend it with 'systemctl suspend' and resume with the lid or power switch. I think the lack of entering S3 on lid-closure might be a Qubes 3.2-rc regression, so I'm ignoring that for now. > [...] > > The indicator on the power button will flash when I press it, > > That is an LED connected to the EC, unrelated to the x86 platform. That makes sense. I also note that if I have the device on external power the light stays on, but there is no external sign of life. > > but the system does not seem to respond otherwise (I do not > > have a port 80 debugger or hardware serial port to see where > > it is failing). > > To look into the ME in a lot of detail I think you may need to get > involved with the hardware. What hardware probes would you recommend? Do you know of any easy place to attach them? The x230 has a second mini-pcie slot available if there are useful debugging devices. Here's the relevant sections from the 'cbmem --console' -- the early ME init routines appear to find a bad partition table, but for some reason the later call to intel_me_status() reports it as ok. I don't see any sort of backup $FPT structure in the ROM, so I'm not sure what is it using. coreboot-4.4-1458-gae58906-heads Fri Sep 9 15:14:17 UTC 2016 romstage starting... Setting up static southbridge registers... done. Disabling Watchdog reboot... done. Setting up static northbridge registers... done. Initializing Graphics... Back from sandybridge_early_initialization() SMBus controller enabled. CPU id(306a9): Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz AES supported, TXT supported, VT supported PCH type: QM77, device id: 1e55, rev id 4 Intel ME early init WARNING: ME has bad firmware ME: Requested 32MB UMA ME: FW Partition Table : BAD ME: Bringup Loader Failure : NO ME: Firmware Init Complete : NO ME: Manufacturing Mode : NO ME: Boot Options Present : NO ME: Update In Progress : NO ME: Current Working State : Recovery ME: Current Operation State : Bring up ME: Current Operation Mode : Normal ME: Error Code : No Error ME: Progress Phase : BUP Phase ME: Power Management Event : Clean Moff->Mx wake ME: Progress Phase State : Waiting for DID BIOS message ME: FWS2: 0x101f016a ME: Bist in progress: 0x0 ME: ICC Status : 0x1 ME: Invoke MEBx : 0x1 ME: CPU replaced : 0x0 ME: MBP ready : 0x1 ME: MFS failure : 0x1 ME: Warm reset req : 0x0 ME: CPU repl valid : 0x1 ME: (Reserved) : 0x0 ME: FW update req : 0x0 ME: (Reserved) : 0x0 ME: Current state : 0x1f ME: Current PM event: 0x0 ME: Progress code : 0x1 PASSED! Tell ME that DRAM is ready [...] XHCI: Setting up controller.. done. PCI: 00:14.0 init finished in 205 usecs PCI: 00:16.0 init ... ME: FW Partition Table : OK ME: Bringup Loader Failure : NO ME: Firmware Init Complete : NO ME: Manufacturing Mode : NO ME: Boot Options Present : NO ME: Update In Progress : NO ME: Current Working State : Reset ME: Current Operation State : Preboot ME: Current Operation Mode : Normal ME: Error Code : No Error ME: Progress Phase : ROM Phase ME: Power Management Event : Clean Moff->Mx wake ME: Progress Phase State : BEGIN intel_me_path: mbp is not ready! ME: BIOS path: Error -- Trammell -- coreboot mailing list: coreboot@coreboot.org https://www.coreboot.org/mailman/listinfo/coreboot