- 30 Jan, 2008 40 commits
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Glauber de Oliveira Costa authored
We need something here because we can't call in and out instructions directly. However, we have to be careful, because no indirections are allowed in misc_64.c , and paravirt_ops is a kind of one. So just call it directly there Signed-off-by:
Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Acked-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Glauber de Oliveira Costa authored
This patch add provisions for time related functions so they can be later replaced by paravirt versions. it basically encloses {g,s}et_wallclock inside the already existent functions update_persistent_clock and read_persistent_clock, and defines {s,g}et_wallclock to the core of such functions. it also allow for a later-on-game time initialization, as done by i386. Paravirt guests can set a function to do their own initialization this way. Signed-off-by: -
Glauber de Oliveira Costa authored
under paravirt, read cr2 cannot be issued directly anymore. So wrap it in a macro, defined to the operation itself in case paravirt is off, but to something else if we have paravirt in the game Signed-off-by:
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Glauber de Oliveira Costa authored
With paravirualization, hypervisors needs to handle the gdt, that was right to this point only used at very early inialization code. Hypervisors (lguest being the current case) are commonly modules, so make it an export Signed-off-by:
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Glauber de Oliveira Costa authored
Export math_state_restore symbol, so it can be used for hypervisors. They are commonly loaded as modules (lguest being an example). Signed-off-by:
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Ingo Molnar authored
fix this build warning: include/asm/topology_32.h: In function 'node_to_first_cpu': include/asm/topology_32.h:66: warning: unused variable 'mask' Signed-off-by:
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Harvey Harrison authored
mmap_is_ia32 always true for X86_32, or while emulating IA32 on X86_64 Randomization not supported on X86_32 in legacy layout. Both layouts allow randomization on X86_64. Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
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Jeremy Fitzhardinge authored
Some code reformatting in init_32.c. No functional change. Signed-off-by:
Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com> Signed-off-by:
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Jeremy Fitzhardinge authored
It only has a single use, which can be trivially replaced. Signed-off-by:
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Ingo Molnar authored
tons of style cleanup in drivers/char/rtc.c - no code changed: text data bss dec hex filename 6400 384 32 6816 1aa0 rtc.o.before 6400 384 32 6816 1aa0 rtc.o.after since we seem to have a number of open breakages in this code we might as well start with making the code more readable and maintainable. Signed-off-by:
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Randy Dunlap authored
Convert clear_page/copy_page macros to inline functions for type-checking. Andrew wants to extirpate these ugly macros. (Ingo too. Thomas as well. Please send us more "kill ugly macros" patches! :-) Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Glauber de Oliveira Costa authored
This file puts the remainder of the arch specificic segment headers in segment.h. Signed-off-by:
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Glauber de Oliveira Costa authored
Although segment handling in i386 and x86_64 are very different, there's a common part. Put them in segment.h instead of arch specific headers Signed-off-by:
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Glauber de Oliveira Costa authored
This macro is useful for both i386 and x86_64, so put it in a common location, where both arches can grab it. Signed-off-by:
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Markus Metzger authored
Resend using different mail client Changes to the last version: - split implementation into two layers: ds/bts and ptrace - renamed TIF's - save/restore ds save area msr in __switch_to_xtra() - make block-stepping only look at BTF bit Signed-off-by:
Markus Metzger <markus.t.metzger@intel.com> Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by:
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Jeff Dike authored
git-x86, in commit 70aa1bd3839e3ec74ce65316528a82570e8de666, changed a lot of the sigcontext field names. This patch changes UML usage to match. I also changed includes of generic headers from "" to <>. Signed-off-by:
Jeff Dike <jdike@linux.intel.com> Signed-off-by:
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Glauber de Oliveira Costa authored
This patch finishes the unification of system.h file. i386 needs a constant to be defined, and it is defined inside an ifdef. Other than that, pretty much nothing but includes are left in the arch specific headers, and they are deleted. [ mingo@elte.hu: 64-bit needs the cr8 access inlines. ] Signed-off-by:
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Glauber de Oliveira Costa authored
This patch moves the switch_to() macro to system.h As those macros are fundamentally different between i386 and x86_64, they are enclosed around an ifdef. Signed-off-by:
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Glauber de Oliveira Costa authored
The memory barrier parts of system.h are not very different between i386 and x86_64, the main difference being the availability of instructions, which we handle with the use of ifdefs. They are consolidated in system.h file, and then removed from the arch-specific headers. Signed-off-by:
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Glauber de Oliveira Costa authored
Mr. Grep says warn_if_not_ulong() is not used anymore anywhere in the code. So, we remove it. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch moves the i386 control registers manipulation functions, wbinvd, and clts functions to system.h. They are essentially the same as in x86_64. With this, system.h paravirt comes for free in x86_64. [ mingo@elte.hu: reintroduced the cr8 bits - needed for resume images ] Signed-off-by:
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Glauber de Oliveira Costa authored
This patch unifies the load_segment() macro, making them equal in both x86_64 and i386 architectures. The common version goes to system.h, and the old are deleted. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch puts together pieces of system_{32,64}.h that looks like the same. It's the first step towards integration of this file. Signed-off-by: -
Glauber de Oliveira Costa authored
the p parameter is an explicit memory reference, and is enough to prevent gcc to being nasty here. The volatile seems completely not needed. Signed-off-by:
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Joerg Roedel authored
This patch does some whitespace cleanups in the paging code to fix some checkpatch.pl warnings of my formerly merged cleanup patches. Signed-off-by:
Joerg Roedel <joerg.roedel@amd.com> Signed-off-by:
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Andrew Morton authored
Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Andrew Morton authored
#39: FILE: arch/ia64/ia32/binfmt_elf32.c:229: +elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused) WARNING: no space between function name and open parenthesis '(' #39: FILE: arch/ia64/ia32/binfmt_elf32.c:229: +elf32_map (struct file *filep, unsigned long addr, struct elf_phdr *eppnt, int prot, int type, unsigned long unused) WARNING: line over 80 characters #67: FILE: arch/x86/kernel/sys_x86_64.c:80: + new_begin = randomize_range(*begin, *begin + 0x02000000, 0); ERROR: use tabs not spaces #110: FILE: arch/x86/kernel/sys_x86_64.c:185: + ^I mm->cached_hole_size = 0;$ ERROR: use tabs not spaces #111: FILE: arch/x86/kernel/sys_x86_64.c:186: + ^I^Imm->free_area_cache = mm->mmap_base;$ ERROR: use tabs not spaces #112: FILE: arch/x86/kernel/sys_x86_64.c:187: + ^I}$ ERROR: use tabs not spaces #141: FILE: arch/x86/kernel/sys_x86_64.c:216: + ^I^I/* remember the largest hole we saw so far */$ ERROR: use tabs not spaces #142: FILE: arch/x86/kernel/sys_x86_64.c:217: + ^I^Iif (addr + mm->cached_hole_size < vma->vm_start)$ ERROR: use tabs not spaces #143: FILE: arch/x86/kernel/sys_x86_64.c:218: + ^I^I mm->cached_hole_size = vma->vm_start - addr;$ ERROR: use tabs not spaces #157: FILE: arch/x86/kernel/sys_x86_64.c:232: + ^Imm->free_area_cache = TASK_UNMAPPED_BASE;$ ERROR: need a space before the open parenthesis '(' #291: FILE: arch/x86/mm/mmap_64.c:101: + } else if(mmap_is_legacy()) { WARNING: braces {} are not necessary for single statement blocks #302: FILE: arch/x86/mm/mmap_64.c:112: + if (current->flags & PF_RANDOMIZE) { + mm->mmap_base += ((long)rnd) << PAGE_SHIFT; + } WARNING: line over 80 characters #314: FILE: fs/binfmt_elf.c:48: +static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long); WARNING: no space between function name and open parenthesis '(' #314: FILE: fs/binfmt_elf.c:48: +static unsigned long elf_map (struct file *, unsigned long, struct elf_phdr *, int, int, unsigned long); WARNING: line over 80 characters #429: FILE: fs/binfmt_elf.c:438: + eppnt, elf_prot, elf_type, total_size); ERROR: need space after that ',' (ctx:VxV) #480: FILE: fs/binfmt_elf.c:939: + elf_prot, elf_flags,0); ^ total: 9 errors, 7 warnings, 461 lines checked Your patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Jakub Jelinek <jakub@redhat.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: -
Jiri Kosina authored
main executable of (specially compiled/linked -pie/-fpie) ET_DYN binaries onto a random address (in cases in which mmap() is allowed to perform a randomization). The code has been extraced from Ingo's exec-shield patch http://people.redhat.com/mingo/exec-shield/ [akpm@linux-foundation.org: fix used-uninitialsied warning] [kamezawa.hiroyu@jp.fujitsu.com: fixed ia32 ELF on x86_64 handling] Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Roland McGrath <roland@redhat.com> Cc: Jakub Jelinek <jakub@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by:
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Harvey Harrison authored
Remove definitions of FASTCALL/fastcall from linkage_32 as compiled with -regparm=3 by default since 2.6.20 and should no longer be needed. CONFIG X86_64 and CONFIG_X86_ALIGNMENT_16 are mutually exclusive as found in Kconfig.cpu so it should be fine to test them separately. Signed-off-by:
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Glauber de Oliveira Costa authored
This patches proceeds with the integration of msr.h, making the code unified, instead of having a version for each architecture. We stick with the native_* functions, and then paravirt comes for free. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch uses the _ASM_ALIGN and _ASM_PTR macros to make the fixups in native_read/write_msr_safe look the same for x86_64 and i386. Besides using this macros, we also have to take the explicit instruction suffixes out. It's okay because all this instructions uses registers, and can be sized by them. Signed-off-by:
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Glauber de Oliveira Costa authored
This patche changes the native_write_msr() and friends interface to explicitly take 2 32-bit registers instead of a 64-bit value. The change will ease the merge with 64-bit code. As the 64-bit value will be passed as two registers anyway in i386, the PVOP_CALL interface has to account for that and use low/high parameters It would force the x86_64 version to be different. The change does not make i386 generated code less efficient. As said above, it would get the values from two registers anyway. Signed-off-by:
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Glauber de Oliveira Costa authored
the rdpmc instruction gets a counter argument in rcx. However, the i386 version was ignoring it. To make both x86_64 and i386 versions the same, as well as to comply with the instruction semantics, this parameter is added in the i386 version Signed-off-by:
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Glauber de Oliveira Costa authored
Targetting paravirt, this patch introduces native_read_tscp, in place of rdtscp() macro. When in a paravirt guest, this will involve a function call, and thus, cannot be done in the vdso area. These users then have to call the native version directly Signed-off-by:
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Glauber de Oliveira Costa authored
cpuid is not very different between i386 and x86_64. We move away the x86_64 version from msr.h, and unify them at processor.h, where they belong. cpuid() paravirt then comes for free. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch splits get_cycles_sync() into __get_cycles_sync(), and the rdtscll part. Paravirt guests cannot issue rdtscl directly, as it involves a function call in vdso area. So, using the __get_cycles_sync() base, we introduce vget_cycles_sync, which then calls the native version of rdtscll. Ideally, however, a guest should define its own clocksource, together with a vread function Signed-off-by:
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Glauber de Oliveira Costa authored
This patch turns the sched_clock into native_sched_clock. sched clock becomes a weak symbol, which can then give its place to a paravirt definition. Signed-off-by:
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Glauber de Oliveira Costa authored
The functions under #ifdef CONFIG_SMP in msr.h are the same for both x86_64 and i386, and this patches removes one of them, putting them in a single location Signed-off-by:
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Glauber de Oliveira Costa authored
Among other things, using -traditional as a gcc option stops us from using macro token pasting, which is a feature we heavily rely on. There was still a use of -traditional in arch/x86/kernel/Makefile_64, which this patch removes. I don't see any problems building kernels in my x86_64 box without -traditional. Signed-off-by:
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Harvey Harrison authored
x86: Use def_bool where possible in Kconfig.cpu Change occurances of: bool default X to: def_bool X Signed-off-by:
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