On Tue, Apr 09, 2019 at 11:59:21AM +0800, Bhupesh Sharma wrote: > Hi Simon, Chen, > > On Mon, Apr 8, 2019 at 5:36 PM Simon Horman <horms@xxxxxxxxxxxx> wrote: > > > > On Mon, Apr 08, 2019 at 05:22:39PM +0800, Chen Zhou wrote: > > > When crashkernel is reserved above 4G in memory, kernel should > > > reserve some amount of low memory for swiotlb and some DMA buffers. > > > So there may be two crash kernel regions, one is below 4G, the other > > > is above 4G. > > > > > > Currently, there is only one crash kernel region on arm64, and pass > > > "linux,usable-memory-range = <BASE SIZE>" property to crash dump > > > kernel. Now, we pass > > > "linux,usable-memory-range = <BASE1 SIZE1 BASE2 SIZE2>" to crash > > > dump kernel to support two crash kernel regions and load crash > > > kernel high. > > > > > > This patch paves the way for the use of arm64 reserving crashkernel > > > above 4G. The details are as below: > > > Link: https://lore.kernel.org/linux-arm-kernel/20190403030546.23718-1-chenzhou10@xxxxxxxxxx/T/#t > > > > > > Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx> > > > > Thanks, applied. > > Sorry, but I think the kernel patch which adds this functionality is > still under discussion and review (see [1]). > May be we can wait for the kernel change to be first discussed and > absorbed and then integrate this patch in kexec-tools. > > What do you think? > > [1]. https://lkml.org/lkml/2019/4/2/1173 Sure, sorry for being a bit too hasty. I will drop this patch for now. _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
