This functions are to be used to reserve memory regions in kexec kernel by
other kernel subsystems.
Signed-off-by: Stanislav Kinsburskii
---
arch/x86/include/asm/e820/api.h |4
arch/x86/kernel/e820.c | 21 +++--
2 files changed, 19 insertions(+), 6
This patch introduces a memory allocator specifically tailored for
persistent memory within the kernel. The allocator maintains
kernel-specific states like DMA passthrough device states, IOMMU state, and
more across kexec.
The current implementation provides a foundation for custom solutions that
Update the logic to classify the persistent memory pool in the kexec e820
table as "kernel reserved" when its corresponding e820 region type is
"System RAM". Restore the pool when its type is "kernel reserved". This
ensures the persistence of the memory pool across kexec operations.
This patch introduces a memory allocator specifically tailored for
persistent memory within the kernel. The allocator maintains
kernel-specific states like DMA passthrough device states, IOMMU state, and
more across kexec.
The current implementation provides a foundation for custom solutions that
On 10/4/23 07:08, Simon Horman wrote:
On Wed, Sep 27, 2023 at 02:11:30PM -0400, Eric DeVolder wrote:
When the kdump service is loaded, if a CPU or memory is hot
un/plugged, the crash elfcorehdr, which describes the CPUs and memory
in the system, must also be updated, else the resulting
On Sat, Sep 23, 2023 at 06:46:06PM +0200, Julien Olivain wrote:
> Commit 714fa115 "kexec/arm64: Simplify the code for zImage" introduced
> a use of the memfd_create() system call, included in version
> kexec-tools v2.0.27.
>
> This system call was introduced in kernel commit [1], first included
>
On Wed, Sep 27, 2023 at 02:11:30PM -0400, Eric DeVolder wrote:
> When the kdump service is loaded, if a CPU or memory is hot
> un/plugged, the crash elfcorehdr, which describes the CPUs and memory
> in the system, must also be updated, else the resulting vmcore is
> inaccurate (eg. missing either
On Wed, Sep 20, 2023 at 05:29:27PM +0530, Hari Bathini wrote:
> While the manpage does mention about kexec boot with a clean shutdown,
> it is not explicit about it. Make it explicit.
>
> Signed-off-by: Hari Bathini
Thanks, applied.
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