- 30 Jan, 2008 40 commits
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Glauber de Oliveira Costa authored
With the types used to access descriptors in x86_64 and i386 now being the same, the code that effectively handles them can now be easily shared. This patch moves the paravirt part of desc_32.h into desc.h, and then, we get paravirt support in x86_64 for free. Signed-off-by:
Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Glauber de Oliveira Costa authored
This patch makes get_desc_base() receive a struct desc_struct, and then uses its internal fields to compute the base address. This is done at both i386 and x86_64, and then it is moved to common header Signed-off-by:
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Glauber de Oliveira Costa authored
This patch changes the type of tls_array in x86_64 to a desc_struct. Now, both i386 and x86_64 tls_array have the same type, and code accessing it can be shared. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch unifies the non-paravirt part of desc_{32,64}.h into desc.h. Most of it, is simply common code, that is moved to the shared header. The only exception is the set_ldt_desc in desc_64.h, which is changed - included its name - to accomodate for the way the ldt is set up in i386. Also, constant definitions used in desc_32.h are moved to desc_defs.h Signed-off-by: -
Glauber de Oliveira Costa authored
this patch moves constant definitions regarding descriptor types from desc_32.h to desc_defs.h. The change from defines to enum to comply with previous versions in desc_defs.h Signed-off-by:
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Glauber de Oliveira Costa authored
this patch changes the signature of write_ldt_entry. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch changes the write_gdt_entry function signature. Instead of the old "a" and "b" parameters, it now receives a pointer to a desc_struct, and the size of the entry being handled. This is because x86_64 can have some 16-byte entries as well as 8-byte ones. Signed-off-by:
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Glauber de Oliveira Costa authored
Provide a new type, tss_desc, to represent the tss descriptor in a unified way accross x86_64 and i386 Signed-off-by:
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Glauber de Oliveira Costa authored
This patch introduces fill_ldt(), which populates a ldt descriptor from a user_desc in once, instead of relying in the LDT_entry_a and LDT_entry_b macros Signed-off-by:
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Glauber de Oliveira Costa authored
This patch modifies the write_ldt() function to make use of the new struct desc_struct instead of entry_1 and entry_2 entries Signed-off-by:
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Glauber de Oliveira Costa authored
this patch introduces ldt_desc type to account for the differences in the ldt descriptor in x86_64 and i386 Signed-off-by:
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Glauber de Oliveira Costa authored
this patch changes write_idt_entry signature. It now takes a gate_desc instead of the a and b parameters. It will allow it to be later unified between i386 and x86_64. Signed-off-by:
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Glauber de Oliveira Costa authored
To account for the differences in gate descriptor in i386 and x86_64 a gate_desc type is introduced. Signed-off-by:
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Glauber de Oliveira Costa authored
This variable is not used anywere, and is then removed Signed-off-by:
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Glauber de Oliveira Costa authored
This patch changes the name of x86_64 macro used to access the per-cpu gdt. It is now equal to the i386 version, which will allow code to be shared. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch unifies struct desc_ptr between i386 and x86_64. They can be expressed in the exact same way in C code, only having to change the name of one of them. As Xgt_desc_struct is ugly and big, this is the one that goes away. There's also a padding field in i386, but it is not really needed in the C structure definition. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch aims to make the access of struct desc_struct variables equal across architectures. In this patch, I unify the i386 and x86_64 versions under an anonymous union, keeping the way they are accessed untouched (a and b for 32-bit code, individual bit-fields for 64-bit). This solution is not beautiful, but will allow us to integrate common code that differed by the way descriptors were used. This is to be viewed incrementally. There's simply too much code to be fixed at once. In the future, goal is to set up in a single way of acessing the desc_struct fields. Signed-off-by:
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Glauber de Oliveira Costa authored
This patch prepares the x86_64 architecture initialization for paravirt. It requires a memory initialization step, which is done by implementing 64-bit version for machine_specific_memory_setup, and putting an ARCH_SETUP hook, for guest-dependent initialization. This last step is done akin to i386 Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Acked-by:
Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by:
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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:
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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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