- 30 Jan, 2008 40 commits
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devzero@web.de authored
This patch extends the early commandline parser to support boolean options. The current version in mainline only supports parsing "option=arg" value pairs. With this it should be easy making other messages like "Uncompressing kernel" honour the "quiet" parameter, too. Signed-off-by:
Roland Kletzing <devzero@web.de> Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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H. Peter Anvin authored
Fix the operand constraints for the segment accessor functions, {rd,wr}{fs,gs}*. In particular, the 8-bit functions used "r" constraints instead of "q" constraints. Signed-off-by: -
H. Peter Anvin authored
Display VESA graphics modes, with their mode IDs, in the vga=ask menu. Most VESA mode numbers are platform-dependent, so it helps to have an easy way to display them. Based in part on a patch by Petr Vandrovec <petr@vandrovec.name>. Cc: Petr Vandrovec <petr@vandrovec.name> Signed-off-by:
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H. Peter Anvin authored
To set CR0.PE, use the X86_CR0_PE macro defined in <asm/processor-flags.h> instead of hardcoding it as a constant (1). Signed-off-by:
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H. Peter Anvin authored
Intel VT doesn't like to engage when the protected-mode state isn't fully initialized. Make life easier for it by initializing LDTR (to null) and TR (to a dummy hunk of low memory which will never actually be touched.) Signed-off-by:
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H. Peter Anvin authored
Make the transition to protected mode more paranoid by having back-to-back near jump (to synchronize the 386/486 prefetch queue) and far jump (to set up the code segment.) While we're at it, zero as many registers as practical (for future expandability of the 32-bit entry interface) and enter 32-bit mode with a valid stack. Note that the 32-bit code cannot rely on this stack, or we'll break all other existing users of the 32-bit entrypoint, but it may make debugging hacks easier to write. Signed-off-by:
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H. Peter Anvin authored
The boot GDT entries are common between 32- and 64-bit mode, so move them to common code instead of having two identical copies. Signed-off-by:
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Harvey Harrison authored
Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Acked-by:
Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by:
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Harvey Harrison authored
get_segment_eip has similarities to convert_rip_to_linear(), and is used in a similar context. Move get_segment_eip to step.c to allow easier consolidation. Signed-off-by:
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Hiroshi Shimamoto authored
Move out tick_nohz_stop_sched_tick() call from the loop in cpu_idle same as 32-bit version. Signed-off-by:
Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by:
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Ingo Molnar authored
introduce the "asmregparm" calling convention: for functions implemented in assembly with a fixed regparm input parameters calling convention. mark the semaphore and rwsem slowpath functions with that. Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz> Signed-off-by:
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Nick Piggin authored
This implements ticket lock support for more than 255 CPUs on x86. The code gets switched according to the configured NR_CPUS. Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
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Paolo Ciarrocchi authored
Simple coding style fixes. no code changed: text data bss dec hex filename 3139 576 194 3909 f45 fixup.o.before 3139 576 194 3909 f45 fixup.o.after md5: 9a3467057478b2d99962bdd448282eeb fixup.o.before.asm 9a3467057478b2d99962bdd448282eeb fixup.o.after.asm Signed-off-by:
Paolo Ciarrocchi <paolo.ciarrocchi@gmail.com> Signed-off-by:
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Harvey Harrison authored
Use the fixup_exception() helper instead of the open-coded search_extable() users. Signed-off-by:
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Harvey Harrison authored
Should be the last of the error_code tests that could use the PF_ defines. Makes X86_32|64 a little closer. Signed-off-by:
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Harvey Harrison authored
Small step towards unifying traps_32|64.c. No functional changes. Pull out a small helper from an if() statement in die(). Marked as __kprobes as eventually we will want to call this from do_page_fault similar to how X86_64 does it. Signed-off-by:
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Nikanth Karthikesan authored
The machine check handler registers ioctl handler that is called with the BKL held. Changing to register unlocked_ioctl instead. Also mce ioctl handler does not seem to need any lock protection. To: Andi Kleen <andi@firstfloor.org> Cc: linux-kernel@vger.kernel.org Cc: kernel-janitors@vger.kernel.org Change the Machine check handler to use unlocked_ioctl instead of ioctl handler. Also the mce ioctl handler does not need any lock protection. Signed-off-by:
Nikanth Karthikesan <knikanth@suse.de> Signed-off-by:
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Jeremy Fitzhardinge authored
When the _PAGE_FOO constants are defined as (1ul << _PAGE_BIT_FOO), they become unsigned longs. In 32-bit PAE mode, these end up being implicitly cast to 64-bit types when used to manipulate a pte, and because they're unsigned the top 32-bits are 0, destroying the upper bits of the pte. When _PAGE_FOO constants are given a signed integer type, the cast to 64-bits will sign-extend so that the upper bits are all ones, preserving the upper pte bits in manipulations. Explain this in a prominent place. Signed-off-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Jeremy Fitzhardinge authored
The hypervisor doesn't allow PCD or PWT to be set on guest ptes, so make sure they're masked out. Also, fix up some previous mispatching. Signed-off-by:
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Jeremy Fitzhardinge authored
Put all the defines for mapping pagetable operations to their native versions (for the non-paravirt case) into one place. Make the corresponding changes to paravirt.h. The tricky part here is that when a pagetable entry can't be updated atomically (ie, 32-bit PAE), we need special handlers for pte_clear, set_pte_atomic and set_pte_present. However, the other two modes don't need special handling for these, and can use a common set_pte(_at) path. [ mingo@elte.hu: fixes ] Signed-off-by:
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Jeremy Fitzhardinge authored
Move ZERO_PAGE/empty_zero_page to common place. Signed-off-by:
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Jeremy Fitzhardinge authored
&ptep->pte isn't always an unsigned long *, so cast it to avoid a warning. Signed-off-by:
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Jeremy Fitzhardinge authored
Make various pte accessors common. Signed-off-by:
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Jeremy Fitzhardinge authored
Fix various compilation problems as a result of changing pte_t. Signed-off-by:
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Jeremy Fitzhardinge authored
Make sure pte_t, whatever its definition, has a pte element with type pteval_t. This allows common code to access it without needing to be specifically parameterised on what pagetable mode we're compiling for. For 32-bit, this means that pte_t becomes a union with "pte" and "{ pte_low, pte_high }" (PAE) or just "pte_low" (non-PAE). Signed-off-by: -
Ingo Molnar authored
fix sign extension bug in PTE_MASK / _PTE_CHG_MASK. this resolves the following bootup crash on PAE systems: [ 94.710726] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.717764] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.724772] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 [ 94.731777] init[1]: segfault at 00000004 ip 49471cbb sp bff0c6c0 error 4 Signed-off-by:
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Ingo Molnar authored
based on: Subject: x86: unify pgtable accessors which use supported_pte_mask From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Jeremy Fitzhardinge authored
Make users of supported_pte_mask common. This has the side-effect of introducing the variable for 32-bit non-PAE, but I think its a pretty small cost to simplify the code. Signed-off-by:
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Jeremy Fitzhardinge authored
In 32-bit PAE, mask NX from pte_pfn, since it isn't part of the PFN. This code is due for unification anyway, but this fixes a latent bug. Signed-off-by:
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Jeremy Fitzhardinge authored
Unify functions to test and set bits in pagetable entries. NOP: only moves existing code around, without any change to it. Signed-off-by:
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Ingo Molnar authored
reorder. NOP. Signed-off-by:
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Ingo Molnar authored
add new ops to 32-bit. based on: Subject: x86/pgtable: unify pagetable accessors From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Ingo Molnar authored
change the pte_mk inlines to the unified format. Non-NOP! based on: Subject: x86/pgtable: unify pagetable accessors From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Ingo Molnar authored
change the pte_dirty/* inlines to the unified format. Non-NOP! based on: Subject: x86/pgtable: unify pagetable accessors From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Ingo Molnar authored
based on: Subject: x86/pgtable: unify pagetable accessors From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Ingo Molnar authored
based on: Subject: x86/pgtable: fix constant sign extension problem From: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Jeremy Fitzhardinge authored
Avoid a conflict between Voyager's leave_mm and asm-x86/mmu.h's leave_mm. Signed-off-by:
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Jeremy Fitzhardinge authored
32 and 64-bit use the same flags for pagetable entries, so make them all common. [ mingo@elte.hu: fixes ] Signed-off-by:
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Ingo Molnar authored
add PWT bit to NOCACHE flags. No real difference to CPUs, but needed later for PAT. Signed-off-by:
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Paolo Ciarrocchi authored
Fix one error reported by checkpatch, it now reports: total: 0 errors, 0 warnings, 42 lines checked Signed-off-by:
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