- 30 Jan, 2008 40 commits
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Ian Campbell authored
I am preparing to convert the boot time page table to the kernels native format. To achieve that I need to enable PAE. Enabling PSE and the no execute bit would not hurt. So this patch modifies the boot cpu path to execute all of the kernels enable code if and only if we have the proper bits set in mmu_cr4_features. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
Ian Campbell <ijc@hellion.org.uk> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Mika Penttilä <mika.penttila@kolumbus.fi> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Ian Campbell authored
Currently in head_32.S there are two ways we test to see if we are the boot cpu. By looking at %ebx and by looking at the static variable ready. When changing things around I have found that it gets tricky to preserve %ebx. So this patch just switches head.S over to the more reliable test of always using ready. Hopefully later we can kill these tests entirely. Signed-off-by:
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travis@sgi.com authored
Change the size of node ids for X86_64 from u8 to s16 to accomodate more than 32k nodes and allow for NUMA_NO_NODE (-1) to be sign extended to int. Cc: David Rientjes <rientjes@google.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by:
Mike Travis <travis@sgi.com> Reviewed-by:
Christoph Lameter <clameter@sgi.com> Signed-off-by:
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Mel Gorman authored
The FLATMEM memory model references a global mem_map and max_mapnr. This is incompatible with how memory models used for NUMA view the world. Builds fail if FLATMEM && NUMA are set on x86. This patch forbids that combination of config items. This is consistent with x86_64 enforcements. Signed-off-by:
Mel Gorman <mel@csn.ul.ie> Signed-off-by:
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Mel Gorman authored
The DISCONTIG memory model on x86 32 bit uses a remap allocator early in boot. The objective is that portions of every node are mapped in to the kernel virtual area (KVA) in place of ZONE_NORMAL so that node-local allocations can be made for pgdat and mem_map structures. With SPARSEMEM, the amount that is set aside is insufficient for all the mem_maps to be allocated. During the boot process, it falls back to using the bootmem allocator. This breaks assumptions that SPARSEMEM makes about the layout of the mem_map in memory and results in a VM_BUG_ON triggering due to pfn_to_page() returning garbage values. This patch only enables the remap allocator for use with DISCONTIG. Without SRAT support, a compile-error occurs because ACPI table parsing functions are only available in x86-64. This patch also adds no-op stubs and prints a warning message. What likely needs to be done is sharing the table parsing functions between 32 and 64 bit if they are compatible. Signed-off-by:
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Harvey Harrison authored
Small fomatting fixes to 64-bit as well, trailing whitespace and extra semicolon, also move the ifdefs for CONFIG_KALLSYMS into the function itself. Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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Mike Travis authored
call early_cpu_to_node() since per_cpu(cpu_to_node_map) might not be setup yet. I also had to export x86_cpu_to_node_map_early_ptr because of some calls from the network code to numa_node_id(): net/ipv4/netfilter/arp_tables.c: net/ipv4/netfilter/ip_tables.c: net/ipv4/netfilter/ip_tables.c: Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Alan Cox authored
We are driving a motherboard port so use a 2uS explicit delay at this point. Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Sam Ravnborg authored
additional section for .init.text appending a number. A side effect of this was a section mismatch warning because modpost did not recognize a .init.text section named .init.text.1: WARNING: vmlinux.o(.text.head+0x247): Section mismatch: reference to .init.text.1:start_kernel (between 'is386' and 'check_x87') Fix this by hardcoding the "ax" in the pushsection. Thanks to Torlaf for reporting this. Alan Modra provided the hint that made me able to locate the root cause of this warning. And Mike Frysinger told me how to properly fix it using __INIT/__FINIT. Fix following Section mismatch warning in addition: WARNING: vmlinux.o(.text+0x14c8): Section mismatch: reference to .init.data:vsyscall_int80_start (between 'fiddle_vdso' and 'xen_setup_features') fiddle_vdso was only used from a __init function - so declare it __init. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by:
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Glauber de Oliveira Costa authored
export __supported_pte_mask variable as GPL symbol. lguest is a user of it. Signed-off-by:
Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by:
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Glauber de Oliveira Costa authored
Exporrt check_tsc_unstable function as GPL symbol. lguest is a user of it. Signed-off-by:
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Harvey Harrison authored
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Harvey Harrison authored
One of the generated files was missed in gitignore. Signed-off-by:
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Ingo Molnar authored
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Ingo Molnar authored
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Yinghai Lu authored
sparsemem is only one supported, so could remove FLAT_NODE_MEM related, that is only needed !SPARSEMEM Signed-off-by:
Yinghai Lu <yinghai.lu@sun.com> Reviewed-by:
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Ingo Molnar authored
these bugs are harder to find than they seem, a stackdump helps. make it dependent on CONFIG_DEBUG_SHIRQ so that people can turn it off if it annoys them. Signed-off-by:
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Ingo Molnar authored
An older binutils bug caused us to not fix up alternatives. This problem involved mutex.c but we dont do lockdep section tricks there anymore, so this workaround is moot. Keep the printk nevertheless, just in case ... We can remove that later on. Signed-off-by:
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Ingo Molnar authored
add warning to check_tsc_warp() - if get_cycles() does not progress. Signed-off-by:
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Ingo Molnar authored
100 million max # of loops is a bit too much - reduce it to 10 million. Signed-off-by:
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Jan Engelhardt authored
x86: remove unneeded casts Signed-off-by:
Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by:
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Harvey Harrison authored
Use v8086_mode inline in fault_32.c, no functional change also ifdef the section for 32-bit only and add to fault_64.c Signed-off-by:
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Ingo Molnar authored
dont crash survivable situations. Signed-off-by:
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travis@sgi.com authored
Provide a means to trap usages of per_cpu map variables before they are setup. Define CONFIG_DEBUG_PER_CPU_MAPS to activate. Signed-off-by:
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travis@sgi.com authored
Change static bios_cpu_apicid array to a per_cpu data variable. This includes using a static array used during initialization similar to the way x86_cpu_to_apicid[] is handled. There is one early use of bios_cpu_apicid in apic_is_clustered_box(). The other reference in cpu_present_to_apicid() is called after smp_set_apicids() has setup the percpu version of bios_cpu_apicid. Signed-off-by:
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Mike Travis authored
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travis@sgi.com authored
Change the following static arrays sized by NR_CPUS to per_cpu data variables: char cpu_to_node_map[NR_CPUS]; fixup: - Split cpu_to_node function into "early" and "late" versions so that x86_cpu_to_node_map_early_ptr is not EXPORT'ed and the cpu_to_node inline function is more streamlined. - This also involves setting up the percpu maps as early as possible. - Fix X86_32 NUMA build errors that previous version of this patch caused. V2->V3: - add early_cpu_to_node function to keep cpu_to_node efficient - move and rename smp_set_apicids() to setup_percpu_maps() - call setup_percpu_maps() as early as possible V1->V2: - Removed extraneous casts - Fix !NUMA builds with '#ifdef CONFIG_NUMA" Signed-off-by: -
Andi Kleen authored
Add a generic option to clear any cpuid bit. I added it because it was very easy to add with the new generic cpuid disable bitmap and perhaps it will be useful in the future. Signed-off-by:
Andi Kleen <ak@suse.de> Signed-off-by:
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Andi Kleen authored
To disable CLFLUSH usage, especially in change_page_attr(). Signed-off-by:
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Andi Kleen authored
Fix from: Ian Campbell <ijc@hellion.org.uk> Signed-off-by:
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Andi Kleen authored
Modern 32bit userland doesn't even boot when the TSC is disabled because ld.so tends to contain RDTSCs. So make notsc only effective for the kernel, similar to 64bit. Signed-off-by:
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Andi Kleen authored
This convers nofxsr, mem=nopentium and nosep to use the new generic cpuid disable bitmap instead of using own variables. Signed-off-by:
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Andi Kleen authored
There are already various options to disable specific cpuid bits on the command line. They all use their own variable. Add a generic mask to make this easier in the future. Signed-off-by:
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Eduardo Habkost authored
This finally makes paravirt-ops able to compile and boot under x86_64. Signed-off-by:
Eduardo Habkost <ehabkost@redhat.com> Signed-off-by:
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Eduardo Habkost authored
paravirt_pagetable_setup_{start,done}() are not used (yet) under x86_64, and native_pagetable_setup_{start,done}() don't exist on x86_64. So they don't need to be set. Signed-off-by: -
Eduardo Habkost authored
Add .set_pgd field to pv_mmu_ops. Implement pud_val(), __pud(), set_pgd(), pud_clear(), pgd_clear(). pud_clear() and pgd_clear() are implemented simply using set_pud() and set_pmd(). They don't have a field at pv_mmu_ops. Signed-off-by:
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Glauber de Oliveira Costa authored
__pmd, pmd_val and set_pud are used before they are defined (as static) We move them a little up in the file, so it doesn't happen. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch adds the __parainstructions section to vmlinux.lds.S. It's needed for the patching system. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch adds the constant PARAVIRT needs in asm_offsets_64.c Signed-off-by:
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Glauber de Oliveira Costa authored
This patch fills in the read and write cr8 fields with their native version. Signed-off-by:
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