Re: [Qemu-devel] [RFC PATCH v3 07/19] acpi_piix4: Implement memory device hotplug registers

2012-09-22 Thread Blue Swirl
On Fri, Sep 21, 2012 at 11:17 AM, Vasilis Liaskovitis wrote: > A 32-byte register is used to present up to 256 hotplug-able memory devices > to BIOS and OSPM. Hot-add and hot-remove functions trigger an ACPI hotplug > event through these. Only reads are allowed from these registers. > > An ACPI ho

[Qemu-devel] [RFC PATCH v3 07/19] acpi_piix4: Implement memory device hotplug registers

2012-09-21 Thread Vasilis Liaskovitis
A 32-byte register is used to present up to 256 hotplug-able memory devices to BIOS and OSPM. Hot-add and hot-remove functions trigger an ACPI hotplug event through these. Only reads are allowed from these registers. An ACPI hot-remove event but needs to wait for OSPM to eject the device. We use a