Hi Shuah and Toshi, As I can tell, _OST method has been defined in ACPI4.0 spec and there are some platforms already implemented the _OST method. For example, Quanta QSSC-S4R server implements _OST for hot-pluggable PCI slots, but it's a little pity that it doesn't implement _OST for the memory board, so we can't test Toshi's patch on that platform. According to my understanding, other than notifying BIOS about the event processing result, _OST could also be used to notify BIOS about the IN_PROGRESS state, so BIOS could track the event handling progress and avoid timeout. We have used _OST method to avoid timeout on one of our prototype platforms. On 04/12/2012 10:19 PM, Shuah Khan wrote: > >> Hi Shuah, >> >> The fake _OST methods print arguments to verify successful execution of >> the methods. Since the purpose of _OST is firmware-internal >> communication, there is no difference in testing on real firmware from >> the OS perspective. Overriding DSDT with fake ACPI methods is a >> well-established and widely used testing method as well. > > Toshi, > > This patch hasn't gone through sufficient new functionality testing as > the only testing that was done was exercising it with stubbed out > firmware calls. I am not clear on how much regression testing this patch > has undergone. Sorry, it doesn't give me the warm and fuzzies. > > -- Shuah > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html