Messages in this thread | | | Subject | Re: [POC] Get acpi table to limit memory scope chosen by KASLR to home SB when "movable_node" is specified | From | Dou Liyang <> | Date | Thu, 3 Aug 2017 16:59:26 +0800 |
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Cc ACPI maintainers and mail list
At 08/03/2017 04:51 PM, Chao Fan wrote: > Hi all, > > Here is an issue about movable_node and KASLR. > Currently, KASLR works well with "mem=", by which we can limit the scope of > memory chosen by KASLR. But if we use "movable_node" independently without > "mem=", we don't know the scope of memory in the home SB, which will cause > the memory of hotplug SB may be chosen by KASLR. > To solve this problem, I want to do this job: > If "movable_node" is specified, try to get the acpi table and find the scope > of memory in home SB, then set "mem_limit". > > The order of getting table is: > boot_params > \-systab > \-efi tables > \-rsdp > \-rsdt or xsdt > \-acpi root table list > \-acpi srat mem affinity > > I am not sure if it's OK for community. > If there are any problems, please let me know. > Any comments will be welcome. > > Thanks, > Chao Fan > > >
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