search for: large_page_mask

...valid. + */ +#define virt_to_pfn(_address) \ +({ \ + unsigned long long __paddr; \ + pgd_t *pgd = pgd_offset_k(_address); \ + pud_t *pud = pud_offset(pgd, (_address)); \ + pmd_t *pmd = pmd_offset(pud, (_address)); \ + if (pmd_large(*pmd)) \ + __paddr = (pmd_val(*pmd) & LARGE_PAGE_MASK) | \ + ((_address) & ~LARGE_PAGE_MASK); \ + else { \ + pte_t *pte = pte_offset_kernel(pmd, (_address));\ + __paddr = (pte_val(*pte) & PAGE_MASK) | \ + ((_address) & ~PAGE_MASK); \ + } \ + __paddr >>= PAGE_SHIFT; \ + __paddr; \ +}) + +/* * Make a giv...

...valid. + */ +#define virt_to_pfn(_address) \ +({ \ + unsigned long long __paddr; \ + pgd_t *pgd = pgd_offset_k(_address); \ + pud_t *pud = pud_offset(pgd, (_address)); \ + pmd_t *pmd = pmd_offset(pud, (_address)); \ + if (pmd_large(*pmd)) \ + __paddr = (pmd_val(*pmd) & LARGE_PAGE_MASK) | \ + ((_address) & ~LARGE_PAGE_MASK); \ + else { \ + pte_t *pte = pte_offset_kernel(pmd, (_address));\ + __paddr = (pte_val(*pte) & PAGE_MASK) | \ + ((_address) & ~PAGE_MASK); \ + } \ + __paddr >>= PAGE_SHIFT; \ + __paddr; \ +}) + +/* * Make a giv...

...=============================== --- linux-2.6.13.orig/arch/i386/mm/pageattr.c 2005-08-24 09:31:05.000000000 -0700 +++ linux-2.6.13/arch/i386/mm/pageattr.c 2005-08-24 09:31:31.000000000 -0700 @@ -52,8 +52,9 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + SetPagePTE(virt_to_page(pbase)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { - set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, + set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,...

...=============================== --- linux-2.6.13.orig/arch/i386/mm/pageattr.c 2005-08-24 09:31:05.000000000 -0700 +++ linux-2.6.13/arch/i386/mm/pageattr.c 2005-08-24 09:31:31.000000000 -0700 @@ -52,8 +52,9 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + SetPagePTE(virt_to_page(pbase)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { - set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, + set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,...

...gt;> PAGE_SHIFT); #endif /* Enable PSE if available */ =================================================================== --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -60,6 +60,7 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + paravirt_alloc_pt(page_to_pfn(base)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, addr == address ? prot : ref_prot)); @@ -...

...gt;> PAGE_SHIFT); #endif /* Enable PSE if available */ =================================================================== --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -60,6 +60,7 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + paravirt_alloc_pt(page_to_pfn(base)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, addr == address ? prot : ref_prot)); @@ -...

...gt;> PAGE_SHIFT); #endif /* Enable PSE if available */ =================================================================== --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -60,6 +60,7 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + paravirt_alloc_pt(page_to_pfn(base)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, addr == address ? prot : ref_prot)); @@ -...

...gt;> PAGE_SHIFT); #endif /* Enable PSE if available */ =================================================================== --- a/arch/i386/mm/pageattr.c +++ b/arch/i386/mm/pageattr.c @@ -60,6 +60,7 @@ static struct page *split_large_page(uns address = __pa(address); addr = address & LARGE_PAGE_MASK; pbase = (pte_t *)page_address(base); + paravirt_alloc_pt(page_to_pfn(base)); for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) { set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT, addr == address ? prot : ref_prot)); @@ -...

Is there any real use in having a ctor/dtor for the pgd cache? Given that all pgd allocation happens via pgd_alloc/pgd_free, why not just fold the [cd]tor in? I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and it looks to me like the easiest way to handle that is by making pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code. Would need to sort out the

Is there any real use in having a ctor/dtor for the pgd cache? Given that all pgd allocation happens via pgd_alloc/pgd_free, why not just fold the [cd]tor in? I'm asking because Xen wants pgd[3] to be unshared in the PAE case, and it looks to me like the easiest way to handle that is by making pgd_alloc/free pv-ops and doing the appropriate thing in the Xen code. Would need to sort out the

[ This patch depends on the cross-architecture ELF cleanup patch. ] This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which

[ This patch depends on the cross-architecture ELF cleanup patch. ] This series updates the boot protocol to 2.07 and uses it to implement paravirtual booting. This allows the bootloader to tell the kernel what kind of hardware/pseudo-hardware environment it's coming up under, and the kernel can use the appropriate boot sequence code. Specifically: - Update the boot protocol to 2.07, which

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-git13 + patches-2.6.21-git7-070507-1.tar.gz (I think "unwinder" is the only patch which doesn't apply to git13, and the sched-clock patches are the only ones which this series actually needs). Changes since the last posting: - More netfront review and cleanup - Added ability to

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-git13 + patches-2.6.21-git7-070507-1.tar.gz (I think "unwinder" is the only patch which doesn't apply to git13, and the sched-clock patches are the only ones which this series actually needs). Changes since the last posting: - More netfront review and cleanup - Added ability to

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-git13 + patches-2.6.21-git7-070507-1.tar.gz (I think "unwinder" is the only patch which doesn't apply to git13, and the sched-clock patches are the only ones which this series actually needs). Changes since the last posting: - More netfront review and cleanup - Added ability to

Hi, This is the Xen implementation for the paravirt_ops interface. The series is based on 2.6.22-rc1-mm1, and I think its ready to be cooked in -mm with a view to being merged in 2.6.23. The first part of the series is some small changes to the core kernel. Apart from the new code added in "Allocate and free vmalloc areas" (posted many times before), they are simply a few one-liners

Hi, This is the Xen implementation for the paravirt_ops interface. The series is based on 2.6.22-rc1-mm1, and I think its ready to be cooked in -mm with a view to being merged in 2.6.23. The first part of the series is some small changes to the core kernel. Apart from the new code added in "Allocate and free vmalloc areas" (posted many times before), they are simply a few one-liners

Hi, This is the Xen implementation for the paravirt_ops interface. The series is based on 2.6.22-rc1-mm1, and I think its ready to be cooked in -mm with a view to being merged in 2.6.23. The first part of the series is some small changes to the core kernel. Apart from the new code added in "Allocate and free vmalloc areas" (posted many times before), they are simply a few one-liners