On 05/20/2012 12:03 PM, Gleb Natapov wrote: > QEMU may want to disable guest's S3/S4 support and it wants to distinguish > between regular powerdown and S4 powerdown. To support that new fw_cfg > option was added that passes supported system states and what value should > guest use to enter each state. States are passed in 6 byte array. Each > byte represents one system state. If byte at offset X has its MSB set > it means that system state X is supported and to enter it guest should > use the value from lowest 7 bits. Patch also detects old QEMU and uses > values that work in backwards compatible way there. >
Do we actually have to patch the DSDT? Or can _S3 etc be made into functions instead? (and talk to the bios, or even to fwcfg directly?) -- error compiling committee.c: too many arguments to function
