similar to: [PATCH 1/9] 00mm1 remove read hazard from cow.patch

Implement lazy MMU update hooks which are SMP safe for both direct and shadow page tables. The idea is that PTE updates and page invalidations while in lazy mode can be batched into a single hypercall. We use this in VMI for shadow page table synchronization, and it is a win. It also can be used by PPC and for direct page tables on Xen. For SMP, the enter / leave must happen under protection

[ REPOST: Apologies to anyone who has seen this before. It didn't make it onto any of the lists it should have. -J ] Hi Andrew, This series of patches lays the basic ground work for the paravirtualized kernel patches coming later on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should

[ REPOST: Apologies to anyone who has seen this before. It didn't make it onto any of the lists it should have. -J ] Hi Andrew, This series of patches lays the basic ground work for the paravirtualized kernel patches coming later on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should

I''m sure everyone has seen the drop of VMI patches for Linux at this point, but just in case, the link is included below. I''ve read this version of the VMI spec and have made my way through most of the patches. While I wasn''t really that impressed with the first spec wrt Xen, the second version seems to be much more palatable. Specifically, the code inlining and

The code hasn't been used since it was added to the tree, and doesn't appear to actually be usable. Signed-off-by: Christoph Hellwig <hch at lst.de> Reviewed-by: Jason Gunthorpe <jgg at mellanox.com> Acked-by: Michal Hocko <mhocko at suse.com> --- include/linux/hmm.h | 4 ++-- include/linux/ioport.h | 1 - include/linux/memremap.h | 8 --------

Greetings, the circus is back in town -- another version of the guest page hinting patches. The patches differ from version 6 only in the kernel version, they apply against 2.6.29. My short sniff test showed that the code is still working as expected. To recap (you can skip this if you read the boiler plate of the last version of the patches): The main benefit for guest page hinting vs. the

Greetings, the circus is back in town -- another version of the guest page hinting patches. The patches differ from version 6 only in the kernel version, they apply against 2.6.29. My short sniff test showed that the code is still working as expected. To recap (you can skip this if you read the boiler plate of the last version of the patches): The main benefit for guest page hinting vs. the

Greetings, the circus is back in town -- another version of the guest page hinting patches. The patches differ from version 6 only in the kernel version, they apply against 2.6.29. My short sniff test showed that the code is still working as expected. To recap (you can skip this if you read the boiler plate of the last version of the patches): The main benefit for guest page hinting vs. the

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

At OLS I gave a talk on some of the Xen scalability inhibitors, and one of these was writable page tables. We went over why the feature does not scale, but just as important, we found that the uniprocessor case does not provide any advantage either. These tests were done on x86_64, so I wanted to run the 1-way test on 32 bit to show the same problem. So, I have run with writable PTs and

On Mon, Aug 15, 2005 at 04:00:39PM -0700, zach@vmware.com wrote: > Make the generic version of ptep_set_wrprotect a macro. This is good for > code uniformity, and fixes the build for architectures which include pgtable.h > through headers into assembly code, but do not define a ptep_set_wrprotect > function. This against the kernel coding style. In fact, we are usually doing

On Mon, Aug 15, 2005 at 04:00:39PM -0700, zach@vmware.com wrote: > Make the generic version of ptep_set_wrprotect a macro. This is good for > code uniformity, and fixes the build for architectures which include pgtable.h > through headers into assembly code, but do not define a ptep_set_wrprotect > function. This against the kernel coding style. In fact, we are usually doing

Found this looping Ubuntu installs with VMI. If unlucky enough to hit a vmalloc sync fault during a lazy mode = operation (from an IRQ handler for a module which was not yet populated = in current page directory, or from inside copy_one_pte, which touches = swap_map, and hit in an unused 4M region), the required PDE update would = never get flushed, causing an infinite page fault loop. This

Found this looping Ubuntu installs with VMI. If unlucky enough to hit a vmalloc sync fault during a lazy mode = operation (from an IRQ handler for a module which was not yet populated = in current page directory, or from inside copy_one_pte, which touches = swap_map, and hit in an unused 4M region), the required PDE update would = never get flushed, causing an infinite page fault loop. This

The macro set_wrprotect() should not be defined to have a value. Make it a do {} while(0) instead of ({}). Noticed by Chris Wright. Signed-off-by: Zachary Amsden <zach@vmware.com> Patch-subject: Make set_wrprotect() value safe Index: linux-2.6.13/include/asm-generic/pgtable.h =================================================================== ---

The macro set_wrprotect() should not be defined to have a value. Make it a do {} while(0) instead of ({}). Noticed by Chris Wright. Signed-off-by: Zachary Amsden <zach@vmware.com> Patch-subject: Make set_wrprotect() value safe Index: linux-2.6.13/include/asm-generic/pgtable.h =================================================================== ---

If you're one of the people who has cvsup'd to 4.8-stable since August 8th and you've since begun to experience panics on a previously stable system, please apply the attached patch and see if your previous stability has been restored. Please tell me your results. Thanks, Mike "Silby" Silbersack -------------- next part -------------- diff -u -r