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Groups > linux.kernel > #1534583
| From | Scott Branden <scott.branden@broadcom.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support |
| Date | 2016-12-02 01:30 +0100 |
| Message-ID | <sJJTH-4xc-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
This patchset is sent for comment to add memory hotplug support for ARM64
based platforms. It follows hotplug code added for other architectures
in the linux kernel.
I tried testing the memory hotplug feature following documentation from
Documentation/memory-hotplug.txt. I don't think it is working as expected
- see below:
To add memory to the system I did the following:
echo 0x400000000 > /sys/devices/system/memory/probe
The memory is displayed as system ram:
cat /proc/iomem:
74000000-77ffffff : System RAM
74080000-748dffff : Kernel code
74950000-749d2fff : Kernel data
400000000-43fffffff : System RAM
But does not seem to be added to the kernel memory.
/proc/meminfo did not change.
What else needs to be done so the memory is added to the kernel memory
pool for normal allocation?
Scott Branden (2):
arm64: memory-hotplug: Add MEMORY_HOTPLUG, MEMORY_HOTREMOVE,
MEMORY_PROBE
arm64: defconfig: enable MEMORY_HOTPLUG config options
arch/arm64/Kconfig | 10 ++++++++++
arch/arm64/configs/defconfig | 3 +++
arch/arm64/mm/init.c | 42 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 55 insertions(+)
--
2.5.0
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[RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Scott Branden <scott.branden@broadcom.com> - 2016-12-02 01:30 +0100
[RFC PATCH 2/2] arm64: defconfig: enable MEMORY_HOTPLUG config options Scott Branden <scott.branden@broadcom.com> - 2016-12-02 01:30 +0100
[RFC PATCH 1/2] arm64: memory-hotplug: Add MEMORY_HOTPLUG, MEMORY_HOTREMOVE, MEMORY_PROBE Scott Branden <scott.branden@broadcom.com> - 2016-12-02 01:30 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Xishi Qiu <qiuxishi@huawei.com> - 2016-12-02 03:00 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Scott Branden <scott.branden@broadcom.com> - 2016-12-02 03:40 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Xishi Qiu <qiuxishi@huawei.com> - 2016-12-02 04:20 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Scott Branden <scott.branden@broadcom.com> - 2016-12-07 09:50 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Xishi Qiu <qiuxishi@huawei.com> - 2016-12-07 12:30 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Maciej Bielski <m.bielski@virtualopensystems.com> - 2016-12-02 10:20 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Will Deacon <will.deacon@arm.com> - 2016-12-02 11:50 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Maciej Bielski <m.bielski@virtualopensystems.com> - 2016-12-02 12:00 +0100
Re: [RFC PATCH 0/2] arm64: memory-hotplug: Add Memory Hotplug support Scott Branden <scott.branden@broadcom.com> - 2016-12-02 18:50 +0100
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