[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 4/4] hvmloader: add support to load extra ACPI tables from qemu
On 01/21/2016 04:53 PM, Jan Beulich wrote: On 21.01.16 at 09:25, <guangrong.xiao@xxxxxxxxxxxxxxx> wrote:On 01/21/2016 04:18 PM, Jan Beulich wrote:Yes. But then - other than you said above - it still looks to me as if the split between PMEM and PBLK is arranged for by firmware?Yes. But OS/Hypervisor is not excepted to dynamically change its configure (re-split), i,e, for PoV of OS/Hypervisor, it is static.Exactly, that has been my understanding. And hence the PMEM part could be under the hypervisor's control, while the PBLK part could be Dom0's responsibility. I am not sure if i have understood your point. What your suggestion is that leave PMEM for hypervisor and all other parts (PBLK and _DSM handling) to Dom0? If yes, we should: a) handle hotplug in hypervisor (new PMEM add/remove) that causes hyperivsor interpret ACPI SSDT/DSDT. b) some _DSMs control PMEM so you should filter out these kind of _DSMs and handle them in hypervisor. c) hypervisor should mange PMEM resource pool and partition it to multiple VMs. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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