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| * kconfig: refer to qt3 if we cannot find qt librariesSam Ravnborg2007-05-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | We do not support qt4 (yet) so the simple fix was to warn that qt3 are missing. The better fix would have been to implment qt4 support but that has failed so far. This solves http://bugzilla.kernel.org/show_bug.cgi?id=8277 Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: handle compressed cpio initramfs-esAlex Landau2007-05-021-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | Make kbuild handle compressed cpio initramfs-es. An already compressed cpio is copied directly to usr/, while a non-compressed cpio is filtered through gzip (no changes here) on its way to usr/. If the user has created a compressed cpio by other means, this saves him from uncompressing it, just to be compressed again by kbuild. Signed-off-by: Alex Landau <landau.alex@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: ignore section mismatch warning for references from .paravirtprobe ↵Sam Ravnborg2007-05-021-0/+13
| | | | | | | | | | | | | | | | | | to .init.text Added on request from: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Rusty Russell <rusty@rustcorp.com.au>
| * kbuild: remove stale comment in modpost.cSam Ravnborg2007-05-021-1/+0
| | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild/mkuboot.sh: allow spaces in CROSS_COMPILEUwe kleine-König2007-05-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm currently using CROSS_COMPILE="ccache arm-linux-". With that the bash builtin command "type" searches for ccache and arm-linux-mkimage and so sets MKIMAGE="/path/to/ccache" as I don't have arm-linux-mkimage. Then the script dies with an error, that ccache doesn't support the argument -A. This patch adds some quoting such that it works again for me. Please note that this patch doesn't help you if you use ${CROSSCOMPILE}-mkimage and ccache as mkuboot.sh now searches for the command "ccache arm-linux-mkimage". Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: fix make mrproper for Documentation/DocBook/manSam Ravnborg2007-05-022-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "make mandocs" generate > 2000 files in Documentation/DocBook/man and this caused kbuild to barf out during make mrproper like this: make -f scripts/Makefile.clean obj=Documentation/DocBook make -f scripts/Makefile.clean obj=Documentation/DocBook/man/ make[2]: execvp: /bin/sh: Argument list too long make[2]: *** [__clean] Error 127 make[1]: *** [Documentation/DocBook/man/] Error 2 make: *** [_mrproper_Documentation/DocBook] Error 2 The man directory were solely used for output so the fix is to remove it entirely during the make mrproper process. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
| * kbuild: remove kconfig binaries during make mrproperSam Ravnborg2007-05-021-0/+1
| | | | | | | | | | | | | | | | | | Nigel Cunningham <nigel@nigel.suspend2.net> noticed that 'make mrproper' did not remove mconf. Fixed so we now remove all relevant binaries. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Nigel Cunningham <nigel@nigel.suspend2.net>
| * kconfig/menuconfig: do not hardcode '.config'Sam Ravnborg2007-05-022-1/+2
| | | | | | | | | | | | | | | | | | Export and use the function conf_get_configname() to retreive the default configuration filename. Suggested by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: override build timestamp & versionSam Ravnborg2007-05-021-7/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce KBUILD_BUILD_VERSION to make it possible to override kernel build version during build time. Introduce KBUILD_BUILD_TIMESTAMP to make it possible to override kernel build timestamp during build time. But variables are useful mainly by distros that want to pass info from an SCM when building the kernel. Timestamp could be last checkin date for a file etc. The idea came from Olaf Hering <olaf@aepfle.de> Cc: Olaf Hering <olaf@aepfle.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kconfig.debug: clarify CONFIG_DEBUG_INFO help textAndreas Dilger2007-05-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | The following patch adds some extra clarification to the CONFIG_DEBUG_INFO Kconfig help text. The current text is mostly a recursive definition and doesn't really say much of anything. When I first read this I thought it was going to enable extra verbosity in debug messages or something, but it is only enabling the "gcc -g" compile option in the Makefile. Signed-off-by: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: complain about missing system callsSam Ravnborg2007-05-023-0/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most system calls seems to get added to i386 first. This patch automatically generates a warning for any new system call which is implemented on i386 but not the architecture currently being compiled. On PowerPC at the moment, for example, it results in these warnings: init/missing_syscalls.h:935:3: warning: #warning syscall sync_file_range not implemented init/missing_syscalls.h:947:3: warning: #warning syscall getcpu not implemented init/missing_syscalls.h:950:3: warning: #warning syscall epoll_pwait not implemented The file scripts/checksyscalls.sh list a number of legacy system calls that are ignored because they only makes sense on i386 systems. Other contributors to this patch are Russell King <rmk+lkml@arm.linux.org.uk> and Stéphane Jourdois <kwisatz@rubis.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: small documentation fix in Documentation/kbuild/modules.txtAnton Blanchard2007-05-021-1/+1
| | | | | | | | | | | | | | | | The Makefile fragment in Documentation/kbuild/modules.txt looks to be missing some braces. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: do not emit src version warning for non-modulesSam Ravnborg2007-05-021-3/+2
| | | | | | | | | | | | | | | | modpost is now called with .o files that are not modules. So do not warn if there is no corresponding .mod file listing .o files (in .tmp_versions/). Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * menuconfig: remember alternate config filenameSam Ravnborg2007-05-023-12/+37
| | | | | | | | | | | | | | | | | | | | | | | | When loading an alternate configuration use that file as current configuration filename. Make the filename visible in the dialog. Default continue to be .config. Inspired by patch from: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Cyrill Gorcunov <gorcunov@gmail.com>
| * kbuild: move tags from ARCH and include/ ahead of driversDon Mullis2007-05-021-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move tags extracted from the ARCH and include/ sub-trees ahead of those from device drivers, so that the former will appear first during searches. Saves user time during interactive searches for certain patterns that happen to find unwanted matches in driver files. Example in emacs: "M-x find-tag PAGE_SIZE" "M-1 M-." (repeated until definition from asm-i386/page.h appears) Signed-off-by: Don Mullis <dwm@meer.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: distinguish between errors and warnings in modpostMatthew Wilcox2007-05-022-3/+20
| | | | | | | | | | | | | | | | | | | | Some of modpost's warnings are fatal, and some are not. Adopt the compiler distinction between errors and warnings by calling merror() for fatal diagnostics and warn() for non-fatal ones. merror() was used as replacemtn for error() to avoid clash with glibc Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kconfig/xconfig: sync main view with search dialog current menuMarco Costalba2007-05-022-2/+5
| | | | | | | | | | | | | | When changing current menu in search dialog update also main view Signed-off-by: Marco Costalba <mcostalba@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * menuconfig: dont use obsolete index() function in lxdialogMike Frysinger2007-05-021-2/+2
| | | | | | | | | | | | | | The index() function is obsolete, use strchr() instead. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: add a missing slash in the commentsUwe Zeisberger2007-05-021-1/+1
| | | | | | | | | | Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * cleanpatch: a script to clean up stealth whitespace added by a patchH. Peter Anvin2007-05-021-0/+206
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This script is a companion to the "cleanfile" script. This cleans up a patch in unified diff format *before* it is applied. Note that the empty lines at the end of file detection *requires* that the diff was taken with at least one line of context around each hunk, or bad things will happen. This script cleans up various classes of stealth whitespace. In particular, it cleans up: - Whitespace (spaces or tabs)before newline; - DOS line endings (CR before LF); - Space before tab (spaces are deleted or converted to tabs); - Empty lines at end of file. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * cleanfile: a script to clean up stealth whitespaceH. Peter Anvin2007-05-021-0/+126
| | | | | | | | | | | | | | | | | | | | | | | | | | This script cleans up various classes of stealth whitespace. In particular, it cleans up: - Whitespace (spaces or tabs)before newline; - DOS line endings (CR before LF); - Space before tab (spaces are deleted or converted to tabs); - Empty lines at end of file. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: remove dependency on input.h from file2aliasSam Ravnborg2007-05-023-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | Almost all definitions used by file2alias was already present in mod_devicetable.h. Added the last definition and killed the input.h usage. The errornous include was pointed out by: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Cc: Deepak Saxena <dsaxena@plexity.net>
| * kbuild: whitelist logo references from .text to .init.dataSam Ravnborg2007-05-021-0/+15
| | | | | | | | | | | | | | | | | | drivers/video/logo has references from .text to .init.data but function is only used during early init. So reference is OK and we do not want to warn about them => whitelist the reference. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: fix segmentation fault in modpostSam Ravnborg2007-05-021-2/+6
| | | | | | | | | | | | | | If modpost was called manually with filenames without '/' then modpost would segfault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: fix warnings from .pci_fixup sectionSam Ravnborg2007-05-021-19/+25
| | | | | | | | | | | | | | | | | | Now where we do not pass vmlinux to modpost we started to see section mismatch warnings from .pci_fixup. Refactored code a little to include these in the whitelist again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: whitelist section mismatch in init/main.cSam Ravnborg2007-05-022-4/+17
| | | | | | | | | | | | | | | | | | In init/main.c we have a reference from rest_init() to .init.text which is intentional. Rename the function 'init' to 'kernel_init' to make it a kernel wide unique symbol and whitelist the reference. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| * kbuild: fix section mismatch check for vmlinuxSam Ravnborg2007-05-023-16/+26
| | | | | | | | | | | | | | | | | | | | | | | | vmlinux does not contain relocation entries which is used by the section mismatch checks. Reported by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Use the individual objects as inputs to overcome this limitation. In modpost check the .o files and skip non-ELF files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-05-0614-478/+1301
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (66 commits) KVM: Remove unused 'instruction_length' KVM: Don't require explicit indication of completion of mmio or pio KVM: Remove extraneous guest entry on mmio read KVM: SVM: Only save/restore MSRs when needed KVM: fix an if() condition KVM: VMX: Add lazy FPU support for VT KVM: VMX: Properly shadow the CR0 register in the vcpu struct KVM: Don't complain about cpu erratum AA15 KVM: Lazy FPU support for SVM KVM: Allow passing 64-bit values to the emulated read/write API KVM: Per-vcpu statistics KVM: VMX: Avoid unnecessary vcpu_load()/vcpu_put() cycles KVM: MMU: Avoid heavy ASSERT at non debug mode. KVM: VMX: Only save/restore MSR_K6_STAR if necessary KVM: Fold drivers/kvm/kvm_vmx.h into drivers/kvm/vmx.c KVM: VMX: Don't switch 64-bit msrs for 32-bit guests KVM: VMX: Reduce unnecessary saving of host msrs KVM: Handle guest page faults when emulating mmio KVM: SVM: Report hardware exit reason to userspace instead of dmesg KVM: Retry sleeping allocation if atomic allocation fails ...
| * | KVM: Remove unused 'instruction_length'Avi Kivity2007-05-032-4/+2
| | | | | | | | | | | | | | | | | | | | | As we no longer emulate in userspace, this is meaningless. We don't compute it on SVM anyway. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Don't require explicit indication of completion of mmio or pioAvi Kivity2007-05-032-25/+24
| | | | | | | | | | | | | | | | | | | | | | | | It is illegal not to return from a pio or mmio request without completing it, as mmio or pio is an atomic operation. Therefore, we can simplify the userspace interface by avoiding the completion indication. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Remove extraneous guest entry on mmio readAvi Kivity2007-05-032-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When emulating an mmio read, we actually emulate twice: once to determine the physical address of the mmio, and, after we've exited to userspace to get the mmio value, we emulate again to place the value in the result register and update any flags. But we don't really need to enter the guest again for that, only to take an immediate vmexit. So, if we detect that we're doing an mmio read, emulate a single instruction before entering the guest again. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: SVM: Only save/restore MSRs when neededAnthony Liguori2007-05-032-17/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We only have to save/restore MSR_GS_BASE on every VMEXIT. The rest can be saved/restored when we leave the VCPU. Since we don't emulate the DEBUGCTL MSRs and the guest cannot write to them, we don't have to worry about saving/restoring them at all. This shaves a whopping 40% off raw vmexit costs on AMD. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: fix an if() conditionAdrian Bunk2007-05-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | It might have worked in this case since PT_PRESENT_MASK is 1, but let's express this correctly. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Add lazy FPU support for VTAnthony Liguori2007-05-031-5/+56
| | | | | | | | | | | | | | | | | | | | | | | | Only save/restore the FPU host state when the guest is actually using the FPU. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Properly shadow the CR0 register in the vcpu structAnthony Liguori2007-05-034-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | Set all of the host mask bits for CR0 so that we can maintain a proper shadow of CR0. This exposes CR0.TS, paving the way for lazy fpu handling. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Don't complain about cpu erratum AA15Avi Kivity2007-05-031-2/+0
| | | | | | | | | | | | | | | | | | It slows down Windows x64 horribly. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Lazy FPU support for SVMAnthony Liguori2007-05-032-4/+33
| | | | | | | | | | | | | | | | | | | | | | | | Avoid saving and restoring the guest fpu state on every exit. This shaves ~100 cycles off the guest/host switch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Allow passing 64-bit values to the emulated read/write APIAvi Kivity2007-05-033-99/+24
| | | | | | | | | | | | | | | | | | | | | This simplifies the API somewhat (by eliminating the special-case cmpxchg8b on i386). Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Per-vcpu statisticsAvi Kivity2007-05-036-53/+79
| | | | | | | | | | | | | | | | | | | | | | | | Make the exit statistics per-vcpu instead of global. This gives a 3.5% boost when running one virtual machine per core on my two socket dual core (4 cores total) machine. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Avoid unnecessary vcpu_load()/vcpu_put() cyclesYaozu Dong2007-05-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | By checking if a reschedule is needed, we avoid dropping the vcpu. [With changes by me, based on Anthony Liguori's observations] Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: MMU: Avoid heavy ASSERT at non debug mode.Yaozu Dong2007-05-031-0/+6
| | | | | | | | | | | | Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Only save/restore MSR_K6_STAR if necessaryAvi Kivity2007-05-031-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Intel hosts only support syscall/sysret in long more (and only if efer.sce is enabled), so only reload the related MSR_K6_STAR if the guest will actually be able to use it. This reduces vmexit cost by about 500 cycles (6400 -> 5870) on my setup. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Fold drivers/kvm/kvm_vmx.h into drivers/kvm/vmx.cAvi Kivity2007-05-032-15/+6
| | | | | | | | | | | | | | | | | | No meat in that file. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Don't switch 64-bit msrs for 32-bit guestsAvi Kivity2007-05-031-16/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | Some msrs are only used by x86_64 instructions, and are therefore not needed when the guest is legacy mode. By not bothering to switch them, we reduce vmexit latency by 2400 cycles (from about 8800) when running a 32-bt guest on a 64-bit host. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: VMX: Reduce unnecessary saving of host msrsAvi Kivity2007-05-031-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | THe automatically switched msrs are never changed on the host (with the exception of MSR_KERNEL_GS_BASE) and thus there is no need to save them on every vm entry. This reduces vmexit latency by ~400 cycles on i386 and by ~900 cycles (10%) on x86_64. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Handle guest page faults when emulating mmioAvi Kivity2007-05-031-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usually, guest page faults are detected by the kvm page fault handler, which detects if they are shadow faults, mmio faults, pagetable faults, or normal guest page faults. However, in ceratin circumstances, we can detect a page fault much later. One of these events is the following combination: - A two memory operand instruction (e.g. movsb) is executed. - The first operand is in mmio space (which is the fault reported to kvm) - The second operand is in an ummaped address (e.g. a guest page fault) The Windows 2000 installer does such an access, an promptly hangs. Fix by adding the missing page fault injection on that path. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: SVM: Report hardware exit reason to userspace instead of dmesgAvi Kivity2007-05-031-6/+1
| | | | | | | | | | | | Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Retry sleeping allocation if atomic allocation failsAvi Kivity2007-05-031-5/+21
| | | | | | | | | | | | | | | | | | This avoids -ENOMEM under memory pressure. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Use slab caches to allocate mmu data structuresAvi Kivity2007-05-033-4/+45
| | | | | | | | | | | | | | | | | | | | | Better leak detection, statistics, memory use, speed -- goodness all around. Signed-off-by: Avi Kivity <avi@qumranet.com>
| * | KVM: Handle partial pae pdptrAvi Kivity2007-05-031-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some guests (Solaris) do not set up all four pdptrs, but leave some invalid. kvm incorrectly treated these as valid page directories, pinning the wrong pages and causing general confusion. Fix by checking the valid bit of a pae pdpte. This closes sourceforge bug 1698922. Signed-off-by: Avi Kivity <avi@qumranet.com>
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