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Many moons ago, support was added to the SMI handlers to log s0ix entry and exit. Early iterations of firmware on Apollo Lake correctly returned "unsupported" for this new command they did not recognize, but unfortunately also contained a quirk where this command would cause them to power down rather than resume from s0ix. Fixes for this quirk were pushed out long ago, so all APL devices still in the field should have updated firmware. As such, we no longer need to have the s0ix_logging_enable be opt-in, where every new platform has to add this to their kernel commandline parameters. Change it to be on by default. In theory we could remove the parameter altogether: updated versions of Chrome OS containing a kernel with this change would also be coupled with firmware that behaves properly with these commands. Eventually we should probably do that. For now, convert this to an opt-out parameter so there's an emergency valve for people who are deliberately running old firmware, or as an escape hatch in case of unforeseen regressions. Signed-off-by: Evan Green <evgreen@chromium.org> Link: https://lore.kernel.org/r/20210401140430.1.Ie141e6044d9b0d5aba72cb08857fdb43660c54d3@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| coreboot_table.c | ||
| coreboot_table.h | ||
| framebuffer-coreboot.c | ||
| gsmi.c | ||
| Kconfig | ||
| Makefile | ||
| memconsole-coreboot.c | ||
| memconsole-x86-legacy.c | ||
| memconsole.c | ||
| memconsole.h | ||
| vpd_decode.c | ||
| vpd_decode.h | ||
| vpd.c | ||