Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-08-06 Thread Vlastimil Babka
On 08/06/2015 03:02 PM, Juergen Gross wrote: On 08/06/2015 02:46 PM, Vlastimil Babka wrote: On 07/17/2015 06:51 AM, Juergen Gross wrote: ... and here for !CONFIG_MMU. So, what about CONFIG_MMU && !FIXMAP_PAGE_RO combinations? Which translates to CONFIG_MMU && !PAGE_KERNEL_RO. Maybe they don't

Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-08-06 Thread Juergen Gross
On 08/06/2015 02:46 PM, Vlastimil Babka wrote: On 07/17/2015 06:51 AM, Juergen Gross wrote: During early boot as Xen pv domain the kernel needs to map some page tables supplied by the hypervisor read only. This is needed to be able to relocate some data structures conflicting with the physical m

Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-08-06 Thread Vlastimil Babka
On 07/17/2015 06:51 AM, Juergen Gross wrote: During early boot as Xen pv domain the kernel needs to map some page tables supplied by the hypervisor read only. This is needed to be able to relocate some data structures conflicting with the physical memory map especially on systems with huge RAM (a

Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-08-05 Thread Juergen Gross
MM maintainers, is it really so hard to comment on this patch? Juergen On 07/29/2015 11:20 AM, Juergen Gross wrote: On 07/21/2015 06:49 AM, Juergen Gross wrote: Hi MM maintainers, this patch is the last requiring an ack for the series to go in. Could you please comment? PING? Juergen

Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-07-29 Thread Juergen Gross
On 07/21/2015 06:49 AM, Juergen Gross wrote: Hi MM maintainers, this patch is the last requiring an ack for the series to go in. Could you please comment? PING? Juergen On 07/17/2015 06:51 AM, Juergen Gross wrote: During early boot as Xen pv domain the kernel needs to map some page table

Re: [Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-07-20 Thread Juergen Gross
Hi MM maintainers, this patch is the last requiring an ack for the series to go in. Could you please comment? Juergen On 07/17/2015 06:51 AM, Juergen Gross wrote: During early boot as Xen pv domain the kernel needs to map some page tables supplied by the hypervisor read only. This is needed t

[Xen-devel] [Patch V6 12/16] mm: provide early_memremap_ro to establish read-only mapping

2015-07-16 Thread Juergen Gross
During early boot as Xen pv domain the kernel needs to map some page tables supplied by the hypervisor read only. This is needed to be able to relocate some data structures conflicting with the physical memory map especially on systems with huge RAM (above 512GB). Provide the function early_memrem