On Fri, Mar 24, 2023 at 09:18:35PM +0800, Baoquan He wrote:
> Problem:
> ===
> On arm64, block and section mapping is supported to build page tables.
> However, currently it enforces to take base page mapping for the whole
> linear mapping if CONFIG_ZONE_DMA or CONFIG_ZONE_DMA32 is enabled and
On 03/25/23 at 10:14am, Leizhen (ThunderTown) wrote:
>
>
> On 2023/3/25 1:11, Catalin Marinas wrote:
> > On Fri, Mar 24, 2023 at 09:18:35PM +0800, Baoquan He wrote:
> >> Baoquan He (3):
> >> arm64: kdump : take off the protection on crashkernel memory region
> >> arm64: kdump: do not map cras
On 2023/3/25 1:11, Catalin Marinas wrote:
> On Fri, Mar 24, 2023 at 09:18:35PM +0800, Baoquan He wrote:
>> Baoquan He (3):
>> arm64: kdump : take off the protection on crashkernel memory region
>> arm64: kdump: do not map crashkernel region specifically
>> arm64: kdump: defer the crashkern
On 2023/3/24 21:18, Baoquan He wrote:
> In commit 031495635b46 ("arm64: Do not defer reserve_crashkernel() for
> platforms with no DMA memory zones"), reserve_crashkernel() is called
> much earlier in arm64_memblock_init() to avoid causing base apge
> mapping on platforms with no DMA meomry zone
On 2023/3/24 21:18, Baoquan He wrote:
> After taking off the protection functions on crashkernel memory region,
> there's no need to map crashkernel region with page granularity during
> linear mapping.
>
> With this change, the system can make use of block or section mapping
> on linear region
On 2023/3/24 21:18, Baoquan He wrote:
> Problem:
> ===
> On arm64, block and section mapping is supported to build page tables.
> However, currently it enforces to take base page mapping for the whole
> linear mapping if CONFIG_ZONE_DMA or CONFIG_ZONE_DMA32 is enabled and
> crashkernel kerne
On 2023/3/24 22:53, Baoquan He wrote:
> Hi Leizhen,
>
> On 03/24/23 at 10:47am, Leizhen (ThunderTown) wrote:
> ..
>> 2) with the fixed CRASH_ADDR_LOW_MAX as 4G, we can easily fix the
>> problem of base page mapping for the whole linear mapping if crsahkernel=
>> is set in kerne
On Fri, Mar 24, 2023 at 09:18:35PM +0800, Baoquan He wrote:
> Baoquan He (3):
> arm64: kdump : take off the protection on crashkernel memory region
> arm64: kdump: do not map crashkernel region specifically
> arm64: kdump: defer the crashkernel reservation for platforms with no
> DMA memo
On Fri, Mar 24, 2023 at 10:08:17PM +0800, Baoquan He wrote:
> On 03/23/23 at 05:25pm, Catalin Marinas wrote:
> > On Mon, Mar 20, 2023 at 09:12:08PM +0800, Baoquan He wrote:
> > > crashkernel=size
> > > 1)first attempt: low memory under arm64_dma_phys_limit
> > > 2)fallback: finding memory ab
Hi Ricardo,
On Wed, 22 Mar 2023 20:09:21 +0100
Ricardo Ribalda wrote:
> Clang16 links the purgatory text in two sections:
>
> [ 1] .text PROGBITS 0040
>11a1 AX 0 0 16
> [ 2] .rela.textRELA
Hi Leizhen,
On 03/24/23 at 10:47am, Leizhen (ThunderTown) wrote:
..
> 2) with the fixed CRASH_ADDR_LOW_MAX as 4G, we can easily fix the
> problem of base page mapping for the whole linear mapping if crsahkernel=
> is set in kernel parameter shown in [1] at bottom.
> >>>
> >>>
On 03/23/23 at 05:25pm, Catalin Marinas wrote:
> On Mon, Mar 20, 2023 at 09:12:08PM +0800, Baoquan He wrote:
> > On 03/17/23 at 06:05pm, Catalin Marinas wrote:
> > > On Fri, Mar 17, 2023 at 11:09:13PM +0800, Baoquan He wrote:
> > > > In fact, what I want to achieve is we set CRASH_ADDR_LOW_MAX to 4
After taking off the protection functions on crashkernel memory region,
there's no need to map crashkernel region with page granularity during
linear mapping.
With this change, the system can make use of block or section mapping
on linear region to largely improve perforcemence during system bootu
In commit 031495635b46 ("arm64: Do not defer reserve_crashkernel() for
platforms with no DMA memory zones"), reserve_crashkernel() is called
much earlier in arm64_memblock_init() to avoid causing base apge
mapping on platforms with no DMA meomry zones.
With taking off protection on crashkernel mem
Problem:
===
On arm64, block and section mapping is supported to build page tables.
However, currently it enforces to take base page mapping for the whole
linear mapping if CONFIG_ZONE_DMA or CONFIG_ZONE_DMA32 is enabled and
crashkernel kernel parameter is set. This will cause longer time of th
Problem:
===
On arm64, block and section mapping is supported to build page tables.
However, currently it enforces to take base page mapping for the whole
linear mapping if CONFIG_ZONE_DMA or CONFIG_ZONE_DMA32 is enabled and
crashkernel kernel parameter is set. This will cause longer time of th
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