提交 7526a628 编写于 作者: C Chen Zhou 提交者: Xie XiuQi

kdump: update Documentation about crashkernel on arm64

hulk inclusion
category: feature
bugzilla: 12800
CVE: NA

-------------------------------------------------

Now we support crashkernel=X,[high,low] on arm64, update the
Documentation.
Signed-off-by: NChen Zhou <chenzhou10@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
上级 8ad16a4b
......@@ -703,14 +703,14 @@
Documentation/kdump/kdump.txt for an example.
crashkernel=size[KMG],high
[KNL, x86_64] range could be above 4G. Allow kernel
[KNL, x86_64, arm64] range could be above 4G. Allow kernel
to allocate physical memory region from top, so could
be above 4G if system have more than 4G ram installed.
Otherwise memory region will be allocated below 4G, if
available.
It will be ignored if crashkernel=X is specified.
crashkernel=size[KMG],low
[KNL, x86_64] range under 4G. When crashkernel=X,high
[KNL, x86_64, arm64] range under 4G. When crashkernel=X,high
is passed, kernel could allocate physical memory region
above 4G, that cause second kernel crash on system
that require some amount of low memory, e.g. swiotlb
......
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