- 11 Jan, 2005 40 commits
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Jeff Dike authored
From: Chris Wright - Fix the syntax of the sys_call_table initializers. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Lots of sparse annotations from Chris Wright. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
x86_64 only delivers signals in the SA_INFO style, whether you ask for it or not. This patch adds a config option which says whether the arch is SA_INFO-only or not, and ifdefs out the sigcontext signal delivery if so. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This shuts up some messages about ioctls being called when they are handled by the line discipline. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This makes a bunch of 64-bit cleanups exposed by x86_64. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Add the new 2.6.10 syscalls. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Add some of the 2.6.10 ptrace updates. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Use for_each_cpu rather than iterating over processors by hand. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Some small cleanups that resulted from the x86_64 merge: Some unneeded includes were removed Some overlong lines were shortened current_thread_info was replaced by a generic version. Some warnings were fixed Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Bodo Stroesser authored
In arch/um/kernel/skas/uaccess.c, the simple assignment va_list args = *((va_list *) arg_ptr); is used in do_buffer_op() to obtain a copy of a va_list, that was delivered as a pointer only. But this construction doesn't compile on s390. Instead, va_copy() and va_end() should be used (see "man va_start"). Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Bodo Stroesser authored
Some architectures (e.g. s390) don't have __NR_waitpid. Thus, it must not be used in arch/um/kernel/tt/ptproxy/proxy.c Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Define addresses at which UML will link and make them settable by the arch. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Add a bunch of headers to include/asm-um to support x86_64. Also move some arch-specific things from generic files to x86-specific ones. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Move the i386 __delay to sys-i386 and add an implementation for x86_64. Also get rid of the definition of um_udelay_t. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This patch makes UML produce error messages instead of silently exiting when one of several configuration mistakes are made. FD_CHAN is now mandatory so that people don't turn it off and complain about no boot messages. Some printks were turned into printfs in the tt mode gdb code so that they appear on the screen. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This patch moves most of the signal handlers to os-Linux, adds an arch-specific mechanism to get the address of the sigcontext structure, and implements it for i386 and x86_64. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This adds the x86_64 ptrace support. It also cleans up the existing code somewhat, eliminating a couple of simple header files, and generalizing the mk_ptregs buils to accomodate multiple architectures. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This moves the register shuffling code into arch/um/os-Linux/sys-$(SUBARCH), making it purely userspace code. It also adds an x86_64 implementation of registers.c. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This adds architecture-specific Kconfig support, plus Kconfig_i386 and Kconfig_x86_64. Currently the only option defined there is CONFIG_64_BIT. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This adds the new files from the x86_64 port which just drop in and don't require any work anywhere else. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This is the three-level page table support from the x86_64 patch. It can be enabled on x86, although it's not particularly needed at this point. However, it can be used to implement very large physical memory (with almost all of it in highmem) on UML. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This factors out a bunch of non-generic system calls into i386-specific code. It also adds the x86_64-specific system calls. A couple of generic system calls handlers are declared in sysdep-i386 because x86 has no declarations for them, but x86_64 has incompatible ones. Also splits out syscalls on behalf on UML/S390 from Bodo Stroesser Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Finish using va_list correctly, by calling va_end. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
This adds pud_t support to UML. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Zwane Mwaikambo authored
x86_64 uses a userspace mce utility to decode MCEs, this patch will ensure that the user is notified of MCE events being logged too. Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Disable conforming bit on USER32_CS segment No difference, but it's more consistent. Pointed out by Petr Vandrovec and some VMWare people Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Found by Bodo Stroesser. Description from Bodo: >> On i386, if a signal handler is started, the kernel saves the fpu-state of the interrupted routine in the sigcontext on the stack. Calling unlazy_fpu() and setting current->used_math=0, the kernel supplies the signal-handler with a cleared virtual fpu. On sigreturn(), the old fpu-state of the interrupted routine is restored. If a process never used the fpu, it virtually has a cleared fpu. If such a process is interrupted by a signal handler, no fpu-context is saved and sigcontext->fpstate is set to NULL. Assume, that the signal handler uses the fpu. Then, AFAICS, on sigreturn current->used_math will be 1. Since sigcontext->fpstate still is NULL, restore_sigcontext() doesn't call restore_i387(). Thus, no clear_fpu() is done, current->used_math is not reset. Now, the interrupted processes fpu no longer is cleared! << Fix by AK. Just clear the FPU again when this happens. patch for i386 and x86-64. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Fix a lot of broken white space in arch/x86_64/kernel/setup.c Only touches white space, no functional changes. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Pointed out by Matthew Wilcox. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
From: Matt Tolentino Some cleanup work in early page table init preparing for memory hotplug. Hacked up by AK Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Merged from i386 Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
This will help only on gcc 4+. On older gccs there is a workaround too, but it is so ugly and there are no actual observed failures that I didn't apply it. Signed-off-by: Andi Kleen <ak@suse.de> Cc: <rth@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
The original check was apparently to work around some old BIOS bugs and we just assume x86-64 machines don't have this class of problems. Originally found by <YhLu@tyan.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
This removes all but one direct reference to mem_map for x86-64. This is needed on systems where we break the mem_map up and directly indexing into mem_map to get the page structure doesn't work anymore. Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Add new key syscalls. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
This fixes the erroneous No mptables found printk on x86_64 mpparse. We will only print the message now if no mptables are found after all scans complete. Signed-off-by: Justin M. Forbes <jmforbes@linuxtx.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
change_page_attr logic fixes from Andrea This avoids reference counting leaks and adds BUGs for more wrong cases. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
On K8 L1 TLB is inclusive, so don't include it in the TLB count. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
We need to save the access flags to properly restore the direct mapping on unmap. For that we use some upper bits in vm_flags Also add a comment for that to the header file. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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