search for: pte_mkdirty

...ea_str { struct mm_struct *mm = vma->vm_mm; pte_t * pte; + pte_t pte_val; spinlock_t *ptl; if (unlikely(anon_vma_prepare(vma))) @@ -322,8 +323,9 @@ void install_arg_page(struct vm_area_str } inc_mm_counter(mm, anon_rss); lru_cache_add_active(page); - set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte( - page, vma->vm_page_prot)))); + pte_val = pte_mkdirty(pte_mkwrite(mk_pte(page, vma->vm_page_prot))); + page_check_writable(page, pte_val); + set_pte_at(mm, address, pte, pte_val); page_add_new_anon_rmap(page, vma, address); pte_unmap_unlock(pte, ptl); diff -urpN...

...ea_str { struct mm_struct *mm = vma->vm_mm; pte_t * pte; + pte_t pte_val; spinlock_t *ptl; if (unlikely(anon_vma_prepare(vma))) @@ -322,8 +323,9 @@ void install_arg_page(struct vm_area_str } inc_mm_counter(mm, anon_rss); lru_cache_add_active(page); - set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte( - page, vma->vm_page_prot)))); + pte_val = pte_mkdirty(pte_mkwrite(mk_pte(page, vma->vm_page_prot))); + page_check_writable(page, pte_val); + set_pte_at(mm, address, pte, pte_val); page_add_new_anon_rmap(page, vma, address); pte_unmap_unlock(pte, ptl); diff -urpN...

...9;s .fault->ttm_bo_vm_fault_reserved->vmf_insert_pfn_prot->insert_pfn. > The insert_pfn will establish the pte entry. However the vmf_insert_pfn_prot > pass false @mkwrite to insert_pfn by default and so insert_pfn could not make > the pfn writable and it do not call maybe_mkwrite(pte_mkdirty(entry), vma) > to clear the PTE_RDONLY bit. So the pte entry is actually write protection for mmu. > So when the first fault return and re-execute the store instruction the second > fault happen again. And in second fault it just only do pte_mkdirty(entry) which > clear the PTE_RDONLY....

This series takes one more step towards cpu-ification of lguest. As for rusty's last suggestion, I get rid of the whole bunch of "struct lguest *lg = cpu->lg" statements around by using lg_cpu as our base structure wherever it matters. (this saves us 11 lines)

This series takes one more step towards cpu-ification of lguest. As for rusty's last suggestion, I get rid of the whole bunch of "struct lguest *lg = cpu->lg" statements around by using lg_cpu as our base structure wherever it matters. (this saves us 11 lines)

...64/include/asm/pgtable.h index 538c85e62f86..28cdd97578a5 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -366,7 +366,7 @@ static inline int pmd_protnone(pmd_t pmd) #define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd))) #define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd))) #define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) -#define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) & ~PMD_SECT_VALID)) +#define pmd_mknotvalid(pmd) (__pmd(pmd_val(pmd) & ~PMD_SECT_VALID)) #define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd)) di...

This series renames pmd_mknotpresent() as pmd_mkinvalid(). Before that it drops an existing pmd_mknotpresent() definition from powerpc platform which was never required as it defines it's pmdp_invalidate() through subscribing __HAVE_ARCH_PMDP_INVALIDATE. This does not create any functional change. This rename was suggested by Catalin during a previous discussion while we were trying to change

...swp_entry = make_device_private_entry(page, vma->vm_flags & VM_WRITE); entry = swp_entry_to_pte(swp_entry); - } else if (is_device_public_page(page)) { - entry = pte_mkold(mk_pte(page, READ_ONCE(vma->vm_page_prot))); - if (vma->vm_flags & VM_WRITE) - entry = pte_mkwrite(pte_mkdirty(entry)); - entry = pte_mkdevmap(entry); } } else { entry = mk_pte(page, vma->vm_page_prot); @@ -2789,7 +2769,7 @@ static void migrate_vma_pages(struct migrate_vma *migrate) migrate->src[i] &= ~MIGRATE_PFN_MIGRATE; continue; } - } else if (!is_device_public_pag...

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

This series renames pmd_mknotpresent() as pmd_mknotvalid(). Before that it drops an existing pmd_mknotpresent() definition from powerpc platform which was never required as it defines it's pmdp_invalidate() through subscribing __HAVE_ARCH_PMDP_INVALIDATE. This does not create any functional change. This rename was suggested by Catalin during a previous discussion while we were trying to

...ok3s/64/pgtable.h: error: redefinition of 'pte_hw_valid': => 567:20 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkclean': => 635:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkdirty': => 663:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkexec': => 645:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkhuge': => 678:21 > + /kisskb/src/arch/powe...

...ok3s/64/pgtable.h: error: redefinition of 'pte_hw_valid': => 567:20 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkclean': => 635:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkdirty': => 663:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkexec': => 645:21 > + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkhuge': => 678:21 > + /kisskb/src/arch/powe...

...pgtable.h: error: redefinition of 'pte_hw_valid': => 567:20 >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkclean': => 635:21 >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkdirty': => 663:21 >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkexec': => 645:21 >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkhuge': => 678:21 >> + /kisskb/s...

...error: redefinition of 'pte_hw_valid': => 567:20 > >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkclean': => 635:21 > >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkdirty': => 663:21 > >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkexec': => 645:21 > >> + /kisskb/src/arch/powerpc/include/asm/book3s/64/pgtable.h: error: redefinition of 'pte_mkhuge': => 678:21 > >&g...

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

...pte_ptr = gpte_addr(gpgd, vaddr); + gpte_ptr = gpte_addr(cpu, gpgd, vaddr); gpte = lgread(cpu, gpte_ptr, pte_t); /* If this page isn't in the Guest page tables, we can't page it in. */ @@ -259,7 +368,7 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) gpte = pte_mkdirty(gpte); /* Get the pointer to the shadow PTE entry we're going to set. */ - spte = spte_addr(*spgd, vaddr); + spte = spte_addr(cpu, *spgd, vaddr); /* If there was a valid shadow PTE entry here before, we release it. * This can happen with a write to a previously read-only entry. */ re...

...pte_ptr = gpte_addr(gpgd, vaddr); + gpte_ptr = gpte_addr(cpu, gpgd, vaddr); gpte = lgread(cpu, gpte_ptr, pte_t); /* If this page isn't in the Guest page tables, we can't page it in. */ @@ -259,7 +368,7 @@ bool demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode) gpte = pte_mkdirty(gpte); /* Get the pointer to the shadow PTE entry we're going to set. */ - spte = spte_addr(*spgd, vaddr); + spte = spte_addr(cpu, *spgd, vaddr); /* If there was a valid shadow PTE entry here before, we release it. * This can happen with a write to a previously read-only entry. */ re...