[Crash-utility] [PATCH 0/5] Second phase of future support for x86_64 5-level page tables

I found Dave had alread done the first phase of future support for x86_64 5-level page tables(commit 307e7f35f510). when I asked him about the state of this work, he gave me a more detailed answer and suggestion. I follow his advice, and do the following job. 1. Refine the original logical: 1) Create some new common function for getting the offset of page table 2) Repace the PML4 and UPML with the common PGD: machdep->machspec->pml4/upml ==> machdep->pdg 3) Using the PUD in x86_64 2. Add 5-level page tables support for x86_64_k/uvtop() This patchset is the second phase of the work, As Dave said, we need to be a manner of determining very early on whether the kernel page tables are using 5-level and whether each user-space task is using 4- or 5-level page tables. These will be done after this phase. About test work: I have tested this patchset with 4-level and 5-level paging table. sadump/ Xen/ Old Linux / RHEL4 are not be tested. Dou Liyang (5): defs.h: Fix the PHYSICAL_PAGE_MASK macro x86_64: Extract public page table mapping code x86_64: Unify the page table parsing for 4-level mode x86_64.c: Add the VMEMMAP support for 5 level page table x86_64: Add 5-level paging support for x86_64_k/uvtop() defs.h | 57 ++---- sadump.c | 9 +- x86_64.c | 702 +++++++++++++++++++++++++++++++-------------------------------- 3 files changed, 367 insertions(+), 401 deletions(-) -- 2.14.3