search for: pgd_offset_k

Add a helper function to convert an arbitrary mapped virtual address to a physical frame number. Adapted from code by Chris Wright, added support for large pages. Because of the placement, this needs to be a macro; pgd_offset_k requires init_mm to be defined, and getting the include files right seemed more complicated than a macroized implementation. A more proper location would be in asm/page.h, but that gets confounded by the use of pgd_offset_k() again. Signed-off-by: Zachary Amsden <zach@vmware.com> Index: lin...

Add a helper function to convert an arbitrary mapped virtual address to a physical frame number. Adapted from code by Chris Wright, added support for large pages. Because of the placement, this needs to be a macro; pgd_offset_k requires init_mm to be defined, and getting the include files right seemed more complicated than a macroized implementation. A more proper location would be in asm/page.h, but that gets confounded by the use of pgd_offset_k() again. Signed-off-by: Zachary Amsden <zach@vmware.com> Index: lin...

...2008-05-15 13:44:37.000000000 +0200 +++ head-2008-05-08/arch/x86_64/mm/pageattr-xen.c 2008-05-15 14:44:59.000000000 +0200 @@ -276,7 +276,7 @@ } #endif /* CONFIG_XEN */ -static inline pte_t *lookup_address(unsigned long address) +pte_t *lookup_address(unsigned long address) { pgd_t *pgd = pgd_offset_k(address); pud_t *pud; Index: head-2008-05-08/include/asm-i386/mach-xen/asm/pgtable.h =================================================================== --- head-2008-05-08.orig/include/asm-i386/mach-xen/asm/pgtable.h 2008-05-15 13:44:37.000000000 +0200 +++ head-2008-05-08/include/asm-i386/mach-x...

..._pte_unmap(pmd, addr); +} + +static inline void hvvm_pud_unmap(pgd_t *pgd, unsigned long addr) +{ + pud_t *pud; + + pud = pud_offset(pgd, addr); + if (pud_none_or_clear_bad(pud)) + return; + hvvm_pmd_unmap(pud, addr); +} + +static void hvvm_unmap_page(unsigned long addr) +{ + pgd_t *pgd; + + pgd = pgd_offset_k(addr); + hvvm_pud_unmap(pgd, addr); +} + +static int hvvm_pte_alloc(pmd_t *pmd, unsigned long addr, + unsigned long page, pgprot_t prot) +{ + pte_t *pte; + + pte = pte_alloc_kernel(pmd, addr); + if (!pte) + return -ENOMEM; + + WARN_ON(!pte_none(*pte)); + set_pte_at(&init_mm, addr, pte, +...

..._pte_unmap(pmd, addr); +} + +static inline void hvvm_pud_unmap(pgd_t *pgd, unsigned long addr) +{ + pud_t *pud; + + pud = pud_offset(pgd, addr); + if (pud_none_or_clear_bad(pud)) + return; + hvvm_pmd_unmap(pud, addr); +} + +static void hvvm_unmap_page(unsigned long addr) +{ + pgd_t *pgd; + + pgd = pgd_offset_k(addr); + hvvm_pud_unmap(pgd, addr); +} + +static int hvvm_pte_alloc(pmd_t *pmd, unsigned long addr, + unsigned long page, pgprot_t prot) +{ + pte_t *pte; + + pte = pte_alloc_kernel(pmd, addr); + if (!pte) + return -ENOMEM; + + WARN_ON(!pte_none(*pte)); + set_pte_at(&init_mm, addr, pte, +...

...oot. + Furthermore the kernel is relocatable and __pa() doesn't + work on addresses. */ + if (vaddr >= KERNEL_START + && vaddr < (KERNEL_START + KERNEL_TR_PAGE_SIZE)) + return vaddr - kernel_virtual_offset; + + /* In kernel area -- virtually mapped. */ + pgd = pgd_offset_k(vaddr); + if (pgd_none(*pgd) || pgd_bad(*pgd)) + return ~0UL; + + pud = pud_offset(pgd, vaddr); + if (pud_none(*pud) || pud_bad(*pud)) + return ~0UL; + + pmd = pmd_offset(pud, vaddr); + if (pmd_none(*pmd) || pmd_bad(*pmd)) + return ~0UL; + + ptep = pte_offset_kernel(pmd, vaddr); + if (...

...oot. + Furthermore the kernel is relocatable and __pa() doesn't + work on addresses. */ + if (vaddr >= KERNEL_START + && vaddr < (KERNEL_START + KERNEL_TR_PAGE_SIZE)) + return vaddr - kernel_virtual_offset; + + /* In kernel area -- virtually mapped. */ + pgd = pgd_offset_k(vaddr); + if (pgd_none(*pgd) || pgd_bad(*pgd)) + return ~0UL; + + pud = pud_offset(pgd, vaddr); + if (pud_none(*pud) || pud_bad(*pud)) + return ~0UL; + + pmd = pmd_offset(pud, vaddr); + if (pmd_none(*pmd) || pmd_bad(*pmd)) + return ~0UL; + + ptep = pte_offset_kernel(pmd, vaddr); + if (...

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

Hello, I have some diagnostic Info for you. Tried to get xen-4.0.1 working on another node of my cluster. Only difference: Newer revision of the Hardware. Exactly same Software Stack. Stack: Ubuntu Lucid 64bit, xen-4.0.1 from Source, selfbuilt linux-2.6.32.27 from xen/stable-2.6.32.x Nodes working: HP DL380G5 16GB (Intel X5460) Node not working: HP DL380G6 16GB (Intel X5550) Effect: Xen

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Changes from take 5 are rebased to Linux 2.6.26-rc3, bug fix ivt.S paravirtualization and multi entry point support. I believe these patches can be applied to the linux ia64 repository. This patchset does the followings. - Some preparation work. Mainly importing header files to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Changes from take 5 are rebased to Linux 2.6.26-rc3, bug fix ivt.S paravirtualization and multi entry point support. I believe these patches can be applied to the linux ia64 repository. This patchset does the followings. - Some preparation work. Mainly importing header files to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions which is necessary to

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Please review and comments. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Please review and comments. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor. - Add some helper functions

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was already merged to linux ia64 test branch. This patch is for linux ia64 test branch. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor.

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was already merged to linux ia64 test branch. This patch is for linux ia64 test branch. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen hypervisor.

Hi. This patchset is ia64/xen domU patch take 8 which was updated following Tony's review. (Thank you very much, Tony.) This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset is for linux ia64 test branch and depends on some patches for xen common part I'll send separately. To compile, the changesets in x86/xen

Hi. This patchset is ia64/xen domU patch take 8 which was updated following Tony's review. (Thank you very much, Tony.) This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset is for linux ia64 test branch and depends on some patches for xen common part I'll send separately. To compile, the changesets in x86/xen

This patchset is ia64/xen domU patch take 9 which is rebased to 2.6.26 This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. This patchset does the followings. - Some preparation work. Mainly importing header files to define related structures. - Then, define functions related to hypercall which is the way to communicate with Xen