aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/mm/init_32.c
AgeCommit message (Collapse)Author
2009-02-06MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatc ↵merge
hes-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414-1233879505 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414-1233879505 / 1c405b6ccee468298e7ccbfd9a3a3f4d123207b0 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414 stable-tracking-hist top was MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414 / 71be0a45396066b1f8f27f8f4f87937247a129e1 ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011 mokopatches-tracking-hist top was MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011 / 1be1b01373f572a02c6f1f99863c8c11ed2f9f5b ... parent commitmessage: From: merge <null@invalid> MERGE-via-master-MERGE-via-master-hist-1232625318 master top was MERGE-via-master-hist-1232625318 / dd4b117123ae66451695810017eb72fbdfc05df5 ... parent commitmessage: From: merge <null@invalid> MERGE-master-patchset-edits
2009-01-22MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatc ↵merge
hes-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
2008-10-31x86: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmapsKeith Packard
Impact: introduce new APIs, separate kmap code from CONFIG_HIGHMEM This takes the code used for CONFIG_HIGHMEM memory mappings except that it's designed for dynamic IO resource mapping. These fixmaps are available even with CONFIG_HIGHMEM turned off. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-13x86: add _PAGE_IOMAP pte flag for IO mappingsJeremy Fitzhardinge
Use one of the software-defined PTE bits to indicate that a mapping is intended for an IO address. On native hardware this is irrelevent, since a physical address is a physical address. But in a virtual environment, physical addresses are also virtualized, so there needs to be some way to distinguish between pseudo-physical addresses and actual hardware addresses; _PAGE_IOMAP indicates this intent. By default, __supported_pte_mask masks out _PAGE_IOMAP, so it doesn't even appear in the final pagetable. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12x86: memory corruption check - cleanupIngo Molnar
Move the prototypes from the generic kernel.h header to the more appropriate include/asm-x86/bios_ebda.h header file. Also, remove the check from the power management code - this is a pure x86 matter for now. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-12Merge branch 'linus' into x86/memory-corruption-checkIngo Molnar
2008-10-10Merge branch 'linus' into x86/pat2Ingo Molnar
Conflicts: arch/x86/mm/init_64.c
2008-10-10x86, cpa: remove cpa pool codeSuresh Siddha
Interrupt context no longer splits large page in cpa(). So we can do away with cpa memory pool code. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: arjan@linux.intel.com Cc: venkatesh.pallipadi@intel.com Cc: jeremy@goop.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-10x86, cpa: dont use large pages for kernel identity mapping with DEBUG_PAGEALLOCSuresh Siddha
Don't use large pages for kernel identity mapping with DEBUG_PAGEALLOC. This will remove the need to split the large page for the allocated kernel page in the interrupt context. This will simplify cpa code(as we don't do the split any more from the interrupt context). cpa code simplication in the subsequent patches. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: arjan@linux.intel.com Cc: venkatesh.pallipadi@intel.com Cc: jeremy@goop.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-10x86, cpa: make the kernel physical mapping initialization a two pass sequenceSuresh Siddha
In the first pass, kernel physical mapping will be setup using large or small pages but uses the same PTE attributes as that of the early PTE attributes setup by early boot code in head_[32|64].S After flushing TLB's, we go through the second pass, which setups the direct mapped PTE's with the appropriate attributes (like NX, GLOBAL etc) which are runtime detectable. This two pass mechanism conforms to the TLB app note which says: "Software should not write to a paging-structure entry in a way that would change, for any linear address, both the page size and either the page frame or attributes." Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: arjan@linux.intel.com Cc: venkatesh.pallipadi@intel.com Cc: jeremy@goop.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-06Merge branch 'x86/prototypes' into x86-v28-for-linus-phase1Ingo Molnar
Conflicts: arch/x86/kernel/process_32.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-14x86/paravirt: Remove duplicate paravirt_pagetable_setup_{start, done}()Alex Nixon
They were already called once in arch/x86/kernel/setup.c - we don't need to call them again. fixes: http://bugzilla.kernel.org/show_bug.cgi?id=11485 Signed-off-by: Alex Nixon <alex.nixon@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-07x86: add periodic corruption checkHugh Dickins
Perodically check for corruption in low phusical memory. Don't bother checking at fault time, since it won't show anything useful. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-23x86: mm/init_XX.c declare functions before they get usedJaswinder Singh
included <asm/smp.h> in mm/init_32.c for zap_low_mappings() declared free_initmem() in asm-x86/page_XX.h Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
2008-07-21Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', ↵Ingo Molnar
'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
2008-07-18x86: enable memory tester support on 32-bitYinghai Lu
only supports memory below max_low_pfn. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-16pvops-64: call paravirt_post_allocator_init() on setup_arch()Eduardo Habkost
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-14Merge branch 'auto-ftrace-next' into tracing/for-linusIngo Molnar
Conflicts: arch/x86/kernel/entry_32.S arch/x86/kernel/process_32.c arch/x86/kernel/process_64.c arch/x86/lib/Makefile include/asm-x86/irqflags.h kernel/Makefile kernel/sched.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-11x86: introduce max_low_pfn_mapped for 64-bitYinghai Lu
when more than 4g memory is installed, don't map the big hole below 4g. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86_32: remove __PAGE_KERNEL(_EXEC)Jeremy Fitzhardinge
From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Older x86-32 processors do not support global mappings (PGD), so must only use it if the processor supports it. The _PAGE_KERNEL* flags always have _PAGE_KERNEL set, since logically we always want it set. This is OK even on processors which do not support PGD, since all _PAGE flags are masked with __supported_pte_mask before being turned into a real in-pagetable pte. On 32-bit systems, __supported_pte_mask is initialized to not contain _PAGE_GLOBAL, and it is then added if the CPU is found to support it. The x86-32 code used to use __PAGE_KERNEL/__PAGE_KERNEL_EXEC for this purpose, but they're now redundant and can be removed. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: merge zones_sizes_init for numa and non numa on 32-bitYinghai Lu
move out e820_register_active_regions from non numa zones_sizes_init() and remove numa version zones_sizes_init(). and let 32 bit call remove_all_active_ranges() in setup_arch() directly like 64-bit Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: fix init_memory_mapping over boundary, v4Yinghai Lu
use PMD_SHIFT to calculate boundary also adjust size for pre-allocated table size Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: fix init_memory_mapping over boundary v3Yinghai Lu
some ram-end boundary only has page alignment, instead of 2M alignment. v2: make init_memory_mapping more solid: start could be any value other than 0 v3: fix NON PAE by handling left over in kernel_physical_mapping Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: move fix mapping page table range earlyYinghai Lu
do that in init_memory_mapping also remove one init_ohci1394_dma_on_all_controllers Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: fix pte allocation in "x86: introduce init_memory_mapping for 32bit"Jeremy Fitzhardinge
The patch "x86: introduce init_memory_mapping for 32bit" does not allocate enough space for PTEs if the CPU does not implement PSE. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: introduce init_memory_mapping for 32bit #3Yinghai Lu
move kva related early backto initmem_init for numa32 Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: introduce init_memory_mapping for 32bit #2Yinghai Lu
moving relocate_initrd early Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: introduce init_memory_mapping for 32bit #1Yinghai Lu
... so can we use mem below max_low_pfn earlier. this allows us to move several functions more early instead of waiting to after paging_init. That includes moving relocate_initrd() earlier in the bootup, and kva related early setup done in initmem_init. (in followup patches) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: move some func calling from setup_arch to paging_initYinghai Lu
those function depend on paging setup pgtable, so they could access the ram in bootmem region but just get mapped. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: clean up min_low_pfnYinghai Lu
for 32bit we already had early_res support, so don't need to track min_low_pfn. keep it to 0 always. also use init_bootmem_node instead of init_bootmem, so don't touch min_low_pfn. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: clean up using max_low_pfn on 32-bitYinghai Lu
so that max_low_pfn is not changed after it is set. so we can move that early and out of initmem_init. could call find_low_pfn_range just after max_pfn is set. also could move reserve_initrd out of setup_bootmem_allocator so 32bit is more like 64bit. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: move find_max_low_pfn to init_32.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: introduce reserve_initrdYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: introduce initmem_init for 32 bitYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08RFC x86: try to remove arch_get_ram_rangeYinghai Lu
want to remove arch_get_ram_range, and use early_node_map instead. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08Merge branch 'x86/mpparse' into x86/develIngo Molnar
Conflicts: arch/x86/Kconfig arch/x86/kernel/io_apic_32.c arch/x86/kernel/setup_64.c arch/x86/mm/init_32.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: kill bad_pproYinghai Lu
so don't punish all other cpus without that problem when init highmem Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86, mm: use add_highpages_with_active_regions() for high pages init v2Yinghai Lu
use early_node_map to init high pages, so we can remove page_is_ram() and page_is_reserved_early() in the big loop with add_one_highpage also remove page_is_reserved_early(), it is not needed anymore. v2: fix the build of other platforms Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: clean up reserve_bootmem_generic() and port it to 32-bitYinghai Lu
1. add reserve_bootmem_generic for 32bit 2. change len to unsigned long 3. make early_res_to_bootmem to use it Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08Merge branches 'x86/numa-fixes', 'x86/apic', 'x86/apm', 'x86/bitops', ↵Ingo Molnar
'x86/build', 'x86/cleanups', 'x86/cpa', 'x86/cpu', 'x86/defconfig', 'x86/gart', 'x86/i8259', 'x86/intel', 'x86/irqstats', 'x86/kconfig', 'x86/ldt', 'x86/mce', 'x86/memtest', 'x86/pat', 'x86/ptemask', 'x86/resumetrace', 'x86/threadinfo', 'x86/timers', 'x86/vdso' and 'x86/xen' into x86/devel
2008-07-08x86, generic: CPA add statistics about state of direct mapping v4Andi Kleen
Add information about the mapping state of the direct mapping to /proc/meminfo. I chose /proc/meminfo because that is where all the other memory statistics are too and it is a generally useful metric even outside debugging situations. A lot of split kernel pages means the kernel will run slower. This way we can see how many large pages are really used for it and how many are split. Useful for general insight into the kernel. v2: Add hotplug locking to 64bit to plug a very obscure theoretical race. 32bit doesn't need it because it doesn't support hotadd for lowmem. Fix some typos v3: Rename dpages_cnt Add CONFIG ifdef for count update as requested by tglx Expand description v4: Fix stupid bugs added in v3 Move update_page_count to pageattr.c Signed-off-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-05x86: reserve highmem pages via reserve_earlyHuang, Ying
This patch makes early reserved highmem pages become reserved pages. This can be used for highmem pages allocated by bootloader such as EFI memory map, linked list of setup_data, etc. Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: andi@firstfloor.org Cc: mingo@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-25x86: eliminate duplicate consistency checks in init_32.cJan Beulich
Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-23ftrace: dont write protect kernel textSteven Rostedt
Dynamic ftrace cant work when the kernel has its text write protected. This patch keeps the kernel from being write protected when dynamic ftrace is in place. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-05-13x86: fix app crashes after SMP resumeHugh Dickins
After resume on a 2cpu laptop, kernel builds collapse with a sed hang, sh or make segfault (often on 20295564), real-time signal to cc1 etc. Several hurdles to jump, but a manually-assisted bisect led to -rc1's d2bcbad5f3ad38a1c09861bca7e252dde7bb8259 x86: do not zap_low_mappings in __smp_prepare_cpus. Though the low mappings were removed at bootup, they were left behind (with Global flags helping to keep them in TLB) after resume or cpu online, causing the crashes seen. Reinstate zap_low_mappings (with local __flush_tlb_all) for each cpu_up on x86_32. This used to be serialized by smp_commenced_mask: that's now gone, but a low_mappings flag will do. No need for native_smp_cpus_done to repeat the zap: let mem_init zap BSP's low mappings just like on UP. (In passing, fix error code from native_cpu_up: do_boot_cpu returns a variety of diagnostic values, Dprintk what it says but convert to -EIO. And save_pg_dir separately before zap_low_mappings: doesn't matter now, but zapping twice in succession wiped out resume's swsusp_pg_dir.) That worked well on the duo and one quad, but wouldn't boot 3rd or 4th cpu on P4 Xeon, oopsing just after unlock_ipi_call_lock. The TLB flush IPI now being sent reveals a long-standing bug: the booting cpu has its APIC readied in smp_callin at the top of start_secondary, but isn't put into the cpu_online_map until just before that unlock_ipi_call_lock. So native_smp_call_function_mask to online cpus would send_IPI_allbutself, including the cpu just coming up, though it has been excluded from the count to wait for: by the time it handles the IPI, the call data on native_smp_call_function_mask's stack may well have been overwritten. So fall back to send_IPI_mask while cpu_online_map does not match cpu_callout_map: perhaps there's a better APICological fix to be made at the start_secondary end, but I wouldn't know that. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-28hotplug-memory: make online_page() commonJeremy Fitzhardinge
All architectures use an effectively identical definition of online_page(), so just make it common code. x86-64, ia64, powerpc and sh are actually identical; x86-32 is slightly different. x86-32's differences arise because it puts its hotplug pages in the highmem zone. We can handle this in the generic code by inspecting the page to see if its in highmem, and update the totalhigh_pages count appropriately. This leaves init_32.c:free_new_highpage with a single caller, so I folded it into add_one_highpage_init. I also removed an incorrect comment referring to the NUMA case; any NUMA details have already been dealt with by the time online_page() is called. [akpm@linux-foundation.org: fix indenting] Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Dave Hansen <dave@linux.vnet.ibm.com> Reviewed-by: KAMEZAWA Hiroyuki <kamez.hiroyu@jp.fujitsu.com> Tested-by: KAMEZAWA Hiroyuki <kamez.hiroyu@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: Christoph Lameter <clameter@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-26x86: remove NexGen supportDmitri Vorobiev
It is claimed that NexGen CPUs were never shipped: http://lkml.org/lkml/2008/4/20/179 Also, the kernel support for these chips has been broken for a long time, the code intended to support NexGen thereby being essentially dead. As an outcome of the discussion that can be found using the URL above, this patch removes the NexGen support altogether. The changes in this patch survived a defconfig build for i386, a couple of successful randconfig builds, as well as a runtime test, which consisted in booting a 32-bit x86 box up to the shell prompt. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-pat * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-pat: generic: add ioremap_wc() interface wrapper /dev/mem: make promisc the default pat: cleanups x86: PAT use reserve free memtype in mmap of /dev/mem x86: PAT phys_mem_access_prot_allowed for dev/mem mmap x86: PAT avoid aliasing in /dev/mem read/write devmem: add range_is_allowed() check to mmap of /dev/mem x86: introduce /dev/mem restrictions with a config option
2008-04-24x86: unify KERNEL_PGD_PTRSJeremy Fitzhardinge
Make KERNEL_PGD_PTRS common, as previously it was only being defined for 32-bit. There are a couple of follow-on changes from this: - KERNEL_PGD_PTRS was being defined in terms of USER_PGD_PTRS. The definition of USER_PGD_PTRS doesn't really make much sense on x86-64, since it can have two different user address-space configurations. I renamed USER_PGD_PTRS to KERNEL_PGD_BOUNDARY, which is meaningful for all of 32/32, 32/64 and 64/64 process configurations. - USER_PTRS_PER_PGD was also defined and was being used for similar purposes. Converting its users to KERNEL_PGD_BOUNDARY left it completely unused, and so I removed it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Andi Kleen <ak@suse.de> Cc: Zach Amsden <zach@vmware.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-24x86: rename paravirt_alloc_pt etc after the pagetable structureJeremy Fitzhardinge
Rename (alloc|release)_(pt|pd) to pte/pmd to explicitly match the name of the appropriate pagetable level structure. [ x86.git merge work by Mark McLoughlin <markmc@redhat.com> ] Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 09:30:56 +0000