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Re: [POC] Get acpi table to limit memory scope chosen by KASLR to home SB when "movable_node" is specified

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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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Re: [POC] Get acpi table to limit memory scope chosen by KASLR to  home SB when "movable_node" is specified Dou Liyang <douly.fnst@cn.fujitsu.com> - 2017-08-03 11:00 +0200
  Re: [POC] Get acpi table to limit memory scope chosen by KASLR to  home SB when "movable_node" is specified Chao Fan <fanc.fnst@cn.fujitsu.com> - 2017-08-03 11:10 +0200

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