- 08 Jul, 2008 40 commits
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Yinghai Lu authored
in case someone using crazy parameter while calling them. Signed-off-by:
Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Yinghai Lu authored
that range is from find_e820_area, so don't try to use end_pfn to see if out of boundary...use table_top instead to avoid possible strange result while cross the boundary... also change early_printk to printk, because init_memory_mapping is after early param parsing, and console=uart8250 already working at that time. Signed-off-by:
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Yinghai Lu authored
so don't shift that in the loop Signed-off-by:
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Yinghai Lu authored
before that we relay on sanitize_e820_map to remove the overlap. but e820_update_range(,,E820_RESERVED, E820_RAM) will not work this patch fix that who is going to use this? Signed-off-by:
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Yinghai Lu authored
move kva related early backto initmem_init for numa32 Signed-off-by:
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Yinghai Lu authored
moving relocate_initrd early Signed-off-by:
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Yinghai Lu authored
... 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:
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Jeremy Fitzhardinge authored
Some amount of asm-x86/mmu_context.h can be unified, including activate_mm paravirt hook. Signed-off-by:
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: xen-devel <xen-devel@lists.xensource.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by:
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Jeremy Fitzhardinge authored
pgd_index is common for 32 and 64-bit, so move it to a common place. Signed-off-by:
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Eduardo Habkost authored
Use __pgd() on mk_kernel_pgd() Signed-off-by:
Eduardo Habkost <ehabkost@redhat.com> Cc: xen-devel <xen-devel@lists.xensource.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by:
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Jeremy Fitzhardinge authored
For calculating the offset from struct gate_struct fields. [ gate_offset and gate_segment were broken for 32-bit. ] Signed-off-by:
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Jeremy Fitzhardinge authored
The 32-bit early_ioremap will work equally well for 64-bit, so just use it. Signed-off-by:
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Jeremy Fitzhardinge authored
Use the _populate() functions to attach new pages to a pagetable, to make sure the right paravirt_ops calls get called. Signed-off-by:
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Jeremy Fitzhardinge authored
Use write_gdt_entry to generate the special vgetcpu descriptor in the vsyscall page. Signed-off-by:
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Jeremy Fitzhardinge authored
This removes a pile of buggy open-coded implementations of savesegment and loadsegment. (They are buggy because they don't have memory barriers to prevent them from being reordered with respect to memory accesses.) Signed-off-by:
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Jeremy Fitzhardinge authored
wrmsr is a special instruction which can have arbitrary system-wide effects. We don't want the compiler to reorder it with respect to memory operations, so make it a memory barrier. Signed-off-by:
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Jeremy Fitzhardinge authored
Add "memory" clobbers to savesegment and loadsegment, since they can affect memory accesses and we never want the compiler to reorder them with respect to memory references. Signed-off-by:
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Jeremy Fitzhardinge authored
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Cyrill Gorcunov authored
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Cyrill Gorcunov <gorcunov@gmail.com> Cc: macro@linux-mips.org Signed-off-by:
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Cyrill Gorcunov authored
There is no need to keep NMI_DISABLED definition and use it for nmi_watchdog by default. Here is the point why: - IO-APIC and APIC chips are programmed for nmi_watchdog support at very early stage of kernel booting and not having nmi_watchdog specified as boot option lead only to nmi_watchdog becomes to NMI_NONE anyway - enable nmi_watchdog thru /proc/sys/kernel/nmi if it was not specified at boot is not possible too (even having this sysfs entry) Signed-off-by:
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Cyrill Gorcunov authored
Since nmi_watchdog is unsigned variable we may safely remove the check for negative value. Signed-off-by:
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Cyrill Gorcunov authored
Since it is possible NMI_ definitions could be changed one day we better print out real nmi_watchdog value instead of constant string. Signed-off-by:
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Cyrill Gorcunov authored
Just some code beautification. Nothing else. Signed-off-by:
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Paul Jackson authored
Everywhere I look, node id's are of type 'int', except in this one case, which has 'unsigned long'. Change this one to 'int' as well. There is nothing special about the way this variable 'nid' is used in this routine to justify using an unusual type here. Signed-off-by:
Paul Jackson <pj@sgi.com> Cc: "Yinghai Lu" <yhlu.kernel@gmail.com> Cc: "Jack Steiner" <steiner@sgi.com> Cc: "Mike Travis" <travis@sgi.com> Cc: "Huang Cc: Ying" <ying.huang@intel.com> Cc: "Andi Kleen" <andi@firstfloor.org> Cc: "Andrew Morton" <akpm@linux-foundation.org> Cc: Paul Jackson <pj@sgi.com> Signed-off-by:
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Paul Jackson authored
Page frame numbers (the portion of physical addresses above the low order page offsets) are displayed in several kernel debug and info prints in decimal, not hex. Decimal addresse are unreadable. Use hex. Signed-off-by:
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Paul Jackson authored
Add support for overlapping early memory reservations. In general, they still can't overlap, and will panic with "Overlapping early reservations" if they do overlap. But if a memory range is reserved with the new call: reserve_early_overlap_ok() rather than with the usual call: reserve_early() then subsequent early reservations are allowed to overlap. This new reserve_early_overlap_ok() call is only used in one place so far, which is the "BIOS reserved" reservation for the the EBDA region, which out of Paranoia reserves more than what the BIOS might have specified, and which thus might overlap with another legitimate early memory reservation (such as, perhaps, the EFI memmap.) Signed-off-by: -
Paul Jackson authored
Fix a compiler warning. Rather than always casting a u32 to a pointer (which generates a warning on x86_64 systems) instead separate the x86_32 and x86_64 assignments entirely with ifdefs. Until other recent changes to this code, it used to have x86_64 separated like this. Signed-off-by:
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Paul Jackson authored
Fix indentation. An earlier code merge got the indentation of four lines of code off by a tab. Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
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Yinghai Lu authored
those function depend on paging setup pgtable, so they could access the ram in bootmem region but just get mapped. Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
len is long and ret is only for NUMA Signed-off-by:
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Ingo Molnar authored
fix: arch/x86/kernel/setup_32.c:409: error: 'enable_local_apic' undeclared (first use in this function) arch/x86/kernel/setup_32.c:409: error: (Each undeclared identifier is reported only once arch/x86/kernel/setup_32.c:409: error: for each function it appears in.) Signed-off-by: -
Yinghai Lu authored
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:
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Yinghai Lu authored
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:
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Yinghai Lu authored
also change reserve_top_address to __init attibute Signed-off-by:
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Yinghai Lu authored
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Yinghai Lu authored
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