On Thu, Jul 25, 2019 at 05:39:39PM +0200, Paolo Bonzini wrote: > On 25/07/19 17:01, Michael S. Tsirkin wrote: > >> It would be educational to try to enable ACPI core but disable all > >> optional features. > > A lot of them are select'ed so it's not easy. > > > Trying with ACPI_REDUCED_HARDWARE_ONLY would also be educational. > > That's what the NEMU guys experimented with. It's not supported by our > DSDT since it uses ACPI GPE,
Well there are two GPE blocks in FADT. We could just switch to these if necesary I think. > and the reduction in code size is small > (about 15000 lines of code in ACPICA, perhaps 100k if you're lucky?). > > Paolo Well ACPI is 150k loc I think, right? linux]$ wc -l `find drivers/acpi/ -name '*.c' `|tail -1 145926 total So 100k wouldn't be too shabby. -- MST
