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fusee/exo: fixes to allow booting (sleep broken until warmboot cache implemented)

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Michael Scire 2021-01-03 23:46:13 -08:00 • committed by SciresM
parent 192ea926f6
commit 601c4516bf
5 changed files with 32 additions and 23 deletions
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14
exosphere/program/source/boot/secmon_boot_setup.cpp
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@ -64,17 +64,9 @@ namespace ams::secmon::boot {
/* Configure warmboot to set Set FUSE_PRIVATEKEYDISABLE to KEY_INVISIBLE. */
reg::ReadWrite(pmc + APBDEV_PMC_SECURE_SCRATCH21, REG_BITS_VALUE(4, 1, 1));
/* Write the warmboot key. */
/* TODO: This is necessary for mariko. We should decide how to handle this. */
/* In particular, mariko will need to support loading older-than-expected warmboot firmware. */
/* We could hash the warmboot firmware and use a lookup table, or require bootloader to provide */
/* The warmboot key as a parameter. The latter is a better solution, but it would be nice to take */
/* care of it here. Perhaps we should read the number of anti-downgrade fuses burnt, and translate that */
/* to the warmboot key? To be decided during the process of implementing ams-on-mariko support. */
reg::Write(pmc + APBDEV_PMC_SECURE_SCRATCH32, 0x129);
/* TODO: Fix to ensure correct scratch contents on mariko, as otherwise wb is broken. */
AMS_ABORT_UNLESS(fuse::GetSocType() != fuse::SocType_Mariko);
/* NOTE: Here, Nintendo writes the warmboot key. */
/* However, we rely on the bootloader (e.g. fusee/hekate) having already done this. */
/* reg::Write(pmc + APBDEV_PMC_SECURE_SCRATCH32, ...); */
}
/* This function derives the master kek and device keys using the tsec root key. */