search for: update_mmu_cach

Add one more MMU hook to the sub-arch layer. update_mmu_cache() - already defined. This is conveniently used to indicate NP->P transitions which should be reflected in an external TLB, and serves to indicate all points where the page tables must be synchronized. Required for lazy updates in shadow mode. There is only one case where an extra flush is ne...

Add one more MMU hook to the sub-arch layer. update_mmu_cache() - already defined. This is conveniently used to indicate NP->P transitions which should be reflected in an external TLB, and serves to indicate all points where the page tables must be synchronized. Required for lazy updates in shadow mode. There is only one case where an extra flush is ne...

...++ linux-2.6-patched/mm/fremap.c 2006-09-01 12:50:24.000000000 +0200 @@ -80,6 +80,7 @@ int install_page(struct mm_struct *mm, s flush_icache_page(vma, page); pte_val = mk_pte(page, prot); + page_check_writable(page, pte_val); set_pte_at(mm, addr, pte, pte_val); page_add_file_rmap(page); update_mmu_cache(vma, addr, pte_val); diff -urpN linux-2.6/mm/memory.c linux-2.6-patched/mm/memory.c --- linux-2.6/mm/memory.c 2006-09-01 12:50:24.000000000 +0200 +++ linux-2.6-patched/mm/memory.c 2006-09-01 12:50:24.000000000 +0200 @@ -1558,6 +1558,7 @@ static int do_wp_page(struct mm_struct * flush_cache_page...

...++ linux-2.6-patched/mm/fremap.c 2006-09-01 12:50:24.000000000 +0200 @@ -80,6 +80,7 @@ int install_page(struct mm_struct *mm, s flush_icache_page(vma, page); pte_val = mk_pte(page, prot); + page_check_writable(page, pte_val); set_pte_at(mm, addr, pte, pte_val); page_add_file_rmap(page); update_mmu_cache(vma, addr, pte_val); diff -urpN linux-2.6/mm/memory.c linux-2.6-patched/mm/memory.c --- linux-2.6/mm/memory.c 2006-09-01 12:50:24.000000000 +0200 +++ linux-2.6-patched/mm/memory.c 2006-09-01 12:50:24.000000000 +0200 @@ -1558,6 +1558,7 @@ static int do_wp_page(struct mm_struct * flush_cache_page...

.../i386/mm/fault.c 2006-03-10 15:57:08.000000000 -0800 @@ -552,6 +552,13 @@ vmalloc_fault: goto no_context; set_pmd(pmd, *pmd_k); + /* + * Needed. We have just updated this root with a copy of + * the kernel pmd. To return without flushing would + * introduce a fault loop. + */ + update_mmu_cache(NULL, pmd, pmd_k->pmd); + pte_k = pte_offset_kernel(pmd_k, address); if (!pte_present(*pte_k)) goto no_context; Index: linux-2.6.16-rc5/arch/i386/mm/init.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/mm/init.c 2006-03-10 12:5...

.../i386/mm/fault.c 2006-03-10 15:57:08.000000000 -0800 @@ -552,6 +552,13 @@ vmalloc_fault: goto no_context; set_pmd(pmd, *pmd_k); + /* + * Needed. We have just updated this root with a copy of + * the kernel pmd. To return without flushing would + * introduce a fault loop. + */ + update_mmu_cache(NULL, pmd, pmd_k->pmd); + pte_k = pte_offset_kernel(pmd_k, address); if (!pte_present(*pte_k)) goto no_context; Index: linux-2.6.16-rc5/arch/i386/mm/init.c =================================================================== --- linux-2.6.16-rc5.orig/arch/i386/mm/init.c 2006-03-10 12:5...

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

...06-09-01 12:50:25.000000000 +0200 +++ linux-2.6-patched/mm/fremap.c 2006-09-01 12:50:25.000000000 +0200 @@ -83,6 +83,7 @@ int install_page(struct mm_struct *mm, s page_check_writable(page, pte_val); set_pte_at(mm, addr, pte, pte_val); page_add_file_rmap(page); + page_make_volatile(page, 1); update_mmu_cache(vma, addr, pte_val); lazy_mmu_prot_update(pte_val); err = 0; diff -urpN linux-2.6/mm/memory.c linux-2.6-patched/mm/memory.c --- linux-2.6/mm/memory.c 2006-09-01 12:50:25.000000000 +0200 +++ linux-2.6-patched/mm/memory.c 2006-09-01 12:50:25.000000000 +0200 @@ -2039,7 +2039,8 @@ static int do_sw...

...06-09-01 12:50:25.000000000 +0200 +++ linux-2.6-patched/mm/fremap.c 2006-09-01 12:50:25.000000000 +0200 @@ -83,6 +83,7 @@ int install_page(struct mm_struct *mm, s page_check_writable(page, pte_val); set_pte_at(mm, addr, pte, pte_val); page_add_file_rmap(page); + page_make_volatile(page, 1); update_mmu_cache(vma, addr, pte_val); lazy_mmu_prot_update(pte_val); err = 0; diff -urpN linux-2.6/mm/memory.c linux-2.6-patched/mm/memory.c --- linux-2.6/mm/memory.c 2006-09-01 12:50:25.000000000 +0200 +++ linux-2.6-patched/mm/memory.c 2006-09-01 12:50:25.000000000 +0200 @@ -2039,7 +2039,8 @@ static int do_sw...

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

Chris Wright wrote: >* Zachary Amsden (zach@vmware.com) wrote: > > >>Does Xen assume page aligned descriptor tables? I assume from this >> >> > >Yes. > > > >>patch and snippets I have gathered from others, that is a yes, and other >>things here imply that DT pages are not shadowed. If so, Xen itself >>must have live segments

Chris Wright wrote: >* Zachary Amsden (zach@vmware.com) wrote: > > >>Does Xen assume page aligned descriptor tables? I assume from this >> >> > >Yes. > > > >>patch and snippets I have gathered from others, that is a yes, and other >>things here imply that DT pages are not shadowed. If so, Xen itself >>must have live segments

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console