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diff --git a/i18n/fr_FR/docs/hardware/t500.md b/i18n/fr_FR/docs/hardware/t500.md new file mode 100644 index 00000000..3973346c --- /dev/null +++ b/i18n/fr_FR/docs/hardware/t500.md @@ -0,0 +1,104 @@ +--- +title: ThinkPad T500 +... + +It is believed that all or most T500 laptops are compatible. See notes +about [CPU +compatibility](../install/t500_external.html#cpu_compatibility) for +potential incompatibilities. + +W500 is also compatible, and mostly the same design as T500. + +There are two possible flash chip sizes for the T500: 4MiB (32Mbit) or +8MiB (64Mbit). This can be identified by the type of flash chip below +the palmrest: 4MiB is SOIC-8, 8MiB is SOIC-16. + +*The T500 laptops come with the ME (and sometimes AMT in addition) +before flashing libreboot. Libreboot disables and removes it by using a +modified descriptor: see [gm45\_remove\_me.md](gm45_remove_me.md)* +(contains notes, plus instructions) + +Flashing instructions can be found at +[../install/\#flashrom](../install/#flashrom) + +EC update {#ecupdate} +========= + +It is recommended that you update to the latest EC firmware version. The +[EC firmware](../../faq.md#ec-embedded-controller-firmware) is separate from +libreboot, so we don't actually provide that, but if you still have +Lenovo BIOS then you can just run the Lenovo BIOS update utility, which +will update both the BIOS and EC version. See: + +- [../install/#flashrom](../install/#flashrom) +- <http://www.thinkwiki.org/wiki/BIOS_update_without_optical_disk> + +NOTE: this can only be done when you are using Lenovo BIOS. How to +update the EC firmware while running libreboot is unknown. Libreboot +only replaces the BIOS firmware, not EC. + +Updated EC firmware has several advantages e.g. bettery battery +handling. + +Compatibility (without blobs) {#compatibility_noblobs} +----------------------------- + +### Hardware virtualization (vt-x) {#hwvirt} + +The T500, when run without CPU microcode updates in coreboot, currently +kernel panics if running QEMU with vt-x enabled on 2 cores for the +guest. With a single core enabled for the guest, the guest panics (but +the host is fine). Working around this in QEMU might be possible; if +not, software virtualization should work fine (it's just slower). + +On GM45 hardware (with libreboot), make sure that the *kvm* and +*kvm\_intel* kernel modules are not loaded, when using QEMU. + +The following errata datasheet from Intel might help with investigation: +<http://download.intel.com/design/mobile/specupdt/320121.pdf> + +The T500 is almost identical to the X200, code-wise. See +[x200.md](x200.md). + +Descriptor and Gbe differences {#descriptor_difference} +------------------------------ + +See +[../future/dumps/t500\_x200\_descriptor/descriptor\_diff\_t500\_x200.txt](../future/dumps/t500_x200_descriptor/descriptor_diff_t500_x200.txt) +and +[../future/dumps/t500\_x200\_descriptor/gbe\_diff\_t500\_x200.txt](../future/dumps/t500_x200_descriptor/gbe_diff_t500_x200.txt) + +The patches above are based on the output from ich9deblob on a +factory.rom image dumped from the T500 with a SOIC-8 4MiB flash chip. +The patch re-creates the X200 descriptor/gbe source, so the commands +were something like: + + $ diff -u t500gbe x200gbe + $ diff -u t500descriptor x200descriptor + +ME VSCC table is in a different place and a different size on the T500. +Libreboot disables and removes the ME anyway, so it doesn't matter. + +The very same descriptor/gbe used on the X200 (generated by +[ich9gen](gm45_remove_me.html#ich9gen)) was re-used on the T500, and it +still worked. + +Hardware register dumps {#regdumps} +----------------------- + +The coreboot wiki +[shows](http://www.coreboot.org/Motherboard_Porting_Guide) how to +collect various logs useful in porting to new boards. Following are +outputs from the T500: + +- T500 with *Macronix MX25L3205D* flash chip (4MiB, SOIC-8) and + Lenovo BIOS 3.13 7VET83WW (EC firmware 1.06): + - [../future/dumps/t500log/](../future/dumps/t500log/) + +Copyright © 2015 Leah Rowe <info@minifree.org>\ + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License Version 1.3 or any later +version published by the Free Software Foundation +with no Invariant Sections, no Front Cover Texts, and no Back Cover Texts. +A copy of this license is found in [../fdl-1.3.md](../fdl-1.3.md) |