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| From: | Avi Kivity |
| Subject: | Re: [Qemu-devel] [PATCH 3/3] Get system state configuration from QEMU and patch DSDT with it. |
| Date: | Sun, 20 May 2012 14:44:51 +0300 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1 |
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
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