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2008-08-07[ARM] Fix circular include dependency with IRQ headersRussell King3-21/+20
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-02[ARM] Fix explicit asm(-arm)?/arch-foo referencesRussell King15-30/+30
No file should be explicitly referencing its own platform headers by specifying an absolute include path. Fix these paths to use standard <asm/arch/...> includes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-02[ARM] move include/asm-arm to arch/arm/include/asmRussell King182-95/+95
Move platform independent header files to arch/arm/include/asm, leaving those in asm/arch* and asm/plat* alone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-02[ARM] Remove explicit dependency for misc.o from compressed/MakefileRussell King1-3/+0
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-30[ARM] initrd: claim initrd memory exclusivelyRussell King1-12/+20
Claim the initrd memory exclusively, and order other memory reservations beforehand. This allows us to determine whether the initrd memory was overwritten, and disable the initrd in that case. This avoids a 'bad page state' bug. Tested-by: Ralph Siemsen <ralphs@netwinder.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-28[ARM] pxa: add support for L2 outer cache on XScale3 (attempt 2)Eric Miao3-22/+190
(20072fd0c93349e19527dd2fa9588b4335960e62 lost most of its changes somehow, came from a mbox archive applied with git-am. No idea what happened. This puts back the missing bits. --rmk) The initial patch from Lothar, and Lennert make it into a cleaner one, modified and tested on PXA320 by Eric Miao. This patch moves the L2 cache operations out of proc-xsc3.S into dedicated outer cache support code. CACHE_XSC3L2 can be deselected so no L2 cache specific code will be linked in, and that L2 enable bit will not be set, this applies to the following cases: a. _only_ PXA300/PXA310 support included and no L2 cache wanted b. PXA320 support included, but want L2 be disabled So the enabling of L2 depends on two things: - CACHE_XSC3L2 is selected - and L2 cache is present Where the latter is only a safeguard (previous testing shows it works OK even when this bit is turned on). IXP series of processors with XScale3 cannot disable L2 cache for the moment since they depend on the L2 cache for its coherent memory, so IXP may always select CACHE_XSC3L2. Other L2 relevant bits are always turned on (i.e. the original code enclosed by #if L2_CACHE_ENABLED .. #endif), as they showed no side effects. Specifically, these bits are: - OC bits in TTBASE register (table walk outer cache attributes) - LLR Outer Cache Attributes (OC) in Auxiliary Control Register Signed-off-by: Lothar WaÃ<9f>mann <LW@KARO-electronics.de> Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-28[ARM] 5180/1: at91: Fix at91_nand -> atmel_nand rename falloutHaavard Skinnemoen4-4/+4
struct at91_nand has been renamed atmel_nand. Fix the four boards that were added since the patch was created. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-28[ARM] add Sascha Hauer as Freescale i.MX MaintainerSascha Hauer1-0/+6
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-28[ARM] i.MX: add missing clock functions exportsPaulius Zaleckas1-0/+5
Export missing Clock API symbols. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-28[ARM] i.MX: remove set_imx_fb_info() exportPaulius Zaleckas1-1/+0
Remove not needed export and fix warning: WARNING: vmlinux.o(__ksymtab+0x400): Section mismatch in reference from the variable __ksymtab_set_imx_fb_info to the function .init.text:set_imx_fb_info() The symbol set_imx_fb_info is exported and annotated __init Fix this by removing the __init annotation of set_imx_fb_info or drop the export. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-28[ARM] mx1ads: make mmc platform data available for modulesSascha Hauer1-2/+2
Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-28[ARM] mx2: add missing Kconfig dependencySascha Hauer1-1/+1
It seems this small label was lost in the last merge. Without it no CPU type is selected for the MX2 family of processors. And a build will fail badly... Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-27task IO accounting: move all IO statistics in struct task_io_accountingAndrea Righi5-57/+44
Simplify the code of include/linux/task_io_accounting.h. It is also more reasonable to have all the task i/o-related statistics in a single struct (task_io_accounting). Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27NFS: Ensure we call nfs_sb_deactive() after releasing the directory inodeTrond Myklebust1-1/+2
In order to avoid the "Busy inodes after unmount" error message, we need to ensure that nfs_async_unlink_release() releases the super block after the call to nfs_free_unlinkdata(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-07-27nfs_remount oops when rebooting + possible fixMarc Zyngier1-3/+3
Jeff, Trond, The commit 48b605f83c920d8daa50e43fc2c7f718e04c7bfa (NFS: implement option checking when remounting NFS filesystems (resend)) generate an Oops on my platform when rebooting while its root FS on an NFS share (NFSv3, TCP) : Unmounting local filesystems...done. Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c3d00000 [00000000] *pgd=a3d72031, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] Modules linked in: cpufreq_powersave cpufreq_ondemand cpufreq_userspace cpufreq_conservative ext3 jbd sd_mod pata_pcmcia libata scsi_mod pcmcia loop firmware_class pxafb cfbcopyarea cfbimgblt cfbfillrect pxa2xx_cs pxa2xx_core pcmcia_core snd_pxa2xx_ac97 snd_ac97_codec ac97_bus snd_pxa2xx_pcm snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd isp116x_hcd soundcore rtc_sa1100 snd_page_alloc pxa25x_udc usbcore rtc_ds1307 rtc_core CPU: 0 Not tainted (2.6.26-03414-g33af79d-dirty #15) PC is at nfs_remount+0x40/0x264 LR is at do_remount_sb+0x158/0x194 pc : [<c00bbf54>] lr : [<c0076c40>] psr: 60000013 sp : c2dd1e70 ip : c2dd1e98 fp : c2dd1e94 r10: 00000040 r9 : c3d17000 r8 : c3c3fc40 r7 : 00000000 r6 : 00000000 r5 : c3d2b200 r4 : 00000000 r3 : 00000003 r2 : 00000000 r1 : c2dd1e9c r0 : c3c3fc00 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 0000397f Table: a3d00000 DAC: 00000015 Process mount (pid: 1462, stack limit = 0xc2dd0270) Stack: (0xc2dd1e70 to 0xc2dd2000) 1e60: 00000000 c3c3fc00 00000000 00000000 1e80: c3c3fc40 c3d17000 c2dd1ebc c2dd1e98 c0076c40 c00bbf20 c01c61e4 00000001 1ea0: c2dd1ebc 00000001 c3c3fc00 c2dd1ef0 c2dd1ee4 c2dd1ec0 c008c6d8 c0076af4 1ec0: 00000021 00000040 c2dd1ef0 c3d77000 c3eaa000 00000000 c2dd1f6c c2dd1ee8 1ee0: c008d1bc c008c5f8 00000000 c2dd0000 c3c0c320 c3805b38 c002064c 0001f820 1f00: 0001f810 00000001 00000001 00000000 c2dd0000 00000000 c2dd1f34 c2dd1f28 1f20: c005ead8 c005e6f8 c2dd1f44 c2dd1f38 c005eaf8 c005ead0 c2dd1f6c c2dd1f48 1f40: c008ae3c 00000000 c3d77000 0001f810 c0ed0021 c0020ca8 c2dd0000 00000000 1f60: c2dd1fa4 c2dd1f70 c008d2d4 c008d0bc 00000000 0001f810 c2dd1f9c c3eaa000 1f80: c3d17000 00000000 00000000 be8b6aa8 be8b6ad0 00000015 00000000 c2dd1fa8 1fa0: c0020b00 c008d254 00000000 be8b6aa8 0001f810 0001f820 0001f830 c0ed0021 1fc0: 00000000 be8b6aa8 be8b6ad0 00000015 00000000 be8b6ad0 0001f810 be8b6aa8 1fe0: 0001f810 be8b6964 0000aab8 40125124 60000010 0001f810 00000000 00000000 Backtrace: [<c00bbf14>] (nfs_remount+0x0/0x264) from [<c0076c40>] (do_remount_sb+0x158/0x194) r9:c3d17000 r8:c3c3fc40 r7:00000000 r6:00000000 r5:c3c3fc00 r4:00000000 [<c0076ae8>] (do_remount_sb+0x0/0x194) from [<c008c6d8>] (do_remount+0xec/0x118) r6:c2dd1ef0 r5:c3c3fc00 r4:00000001 [<c008c5ec>] (do_remount+0x0/0x118) from [<c008d1bc>] (do_mount+0x10c/0x198) [<c008d0b0>] (do_mount+0x0/0x198) from [<c008d2d4>] (sys_mount+0x8c/0xd4) [<c008d248>] (sys_mount+0x0/0xd4) from [<c0020b00>] (ret_fast_syscall+0x0/0x2c) r7:00000015 r6:be8b6ad0 r5:be8b6aa8 r4:00000000 Code: 0a000086 ea000006 e3530003 8a000004 (e5923000) ---[ end trace 55e1b689cf8c8a6a ]--- ------------[ cut here ]------------ WARNING: at kernel/exit.c:966 do_exit+0x3c/0x628() Modules linked in: cpufreq_powersave cpufreq_ondemand cpufreq_userspace cpufreq_conservative ext3 jbd sd_mod pata_pcmcia libata scsi_mod pcmcia loop firmware_class pxafb cfbcopyarea cfbimgblt cfbfillrect pxa2xx_cs pxa2xx_core pcmcia_core snd_pxa2xx_ac97 snd_ac97_codec ac97_bus snd_pxa2xx_pcm snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd isp116x_hcd soundcore rtc_sa1100 snd_page_alloc pxa25x_udc usbcore rtc_ds1307 rtc_core [<c0025168>] (dump_stack+0x0/0x14) from [<c0032154>] (warn_on_slowpath+0x4c/0x68) [<c0032108>] (warn_on_slowpath+0x0/0x68) from [<c003531c>] (do_exit+0x3c/0x628) r6:0000000b r5:c3c3dc80 r4:c2dd0000 [<c00352e0>] (do_exit+0x0/0x628) from [<c0025004>] (die+0x2b0/0x30c) [<c0024d54>] (die+0x0/0x30c) from [<c00270bc>] (__do_kernel_fault+0x6c/0x80) [<c0027050>] (__do_kernel_fault+0x0/0x80) from [<c00272e0>] (do_page_fault+0x210/0x230) r7:c3fa7118 r6:c3c3dc80 r5:c3d166a8 r4:00010000 [<c00270d0>] (do_page_fault+0x0/0x230) from [<c00201ec>] (do_DataAbort+0x3c/0xa0) [<c00201b0>] (do_DataAbort+0x0/0xa0) from [<c002064c>] (__dabt_svc+0x4c/0x60) Exception stack(0xc2dd1e28 to 0xc2dd1e70) 1e20: c3c3fc00 c2dd1e9c 00000000 00000003 00000000 c3d2b200 1e40: 00000000 00000000 c3c3fc40 c3d17000 00000040 c2dd1e94 c2dd1e98 c2dd1e70 1e60: c0076c40 c00bbf54 60000013 ffffffff r8:c3c3fc40 r7:00000000 r6:00000000 r5:c2dd1e5c r4:ffffffff [<c00bbf14>] (nfs_remount+0x0/0x264) from [<c0076c40>] (do_remount_sb+0x158/0x194) r9:c3d17000 r8:c3c3fc40 r7:00000000 r6:00000000 r5:c3c3fc00 r4:00000000 [<c0076ae8>] (do_remount_sb+0x0/0x194) from [<c008c6d8>] (do_remount+0xec/0x118) r6:c2dd1ef0 r5:c3c3fc00 r4:00000001 [<c008c5ec>] (do_remount+0x0/0x118) from [<c008d1bc>] (do_mount+0x10c/0x198) [<c008d0b0>] (do_mount+0x0/0x198) from [<c008d2d4>] (sys_mount+0x8c/0xd4) [<c008d248>] (sys_mount+0x0/0xd4) from [<c0020b00>] (ret_fast_syscall+0x0/0x2c) r7:00000015 r6:be8b6ad0 r5:be8b6aa8 r4:00000000 ---[ end trace 55e1b689cf8c8a6a ]--- /etc/rc6.d/S60umountroot: line 17: 1462 Segmentation fault mount $MOUNT_FORCE_OPT -n -o remount,ro -t dummytype dummydev / 2> /dev/null The new super.c:nfs_remount function doesn't check the validity of the options/options4 pointers. Unfortunately, this seems to happend. The obvious patch seems to check the pointers, and not to do anything if the happend to be NULL. Tested on an XScale PXA255 system, latest git. Regards, M. Signed-off-by: Marc Zyngier <marc.zyngier@altran.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-07-27x86: fix cpu hotplug on 32bitThomas Gleixner1-3/+5
commit 3e9704739daf46a8ba6593d749c67b5f7cd633d2 ("x86: boot secondary cpus through initial_code") causes the kernel to crash when a CPU is brought online after the read only sections have been write protected. The write to initial_code in do_boot_cpu() fails. Move inital_code to .cpuinit.data section. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: H. Peter Anvin <hpa@zytor.com>
2008-07-27isdn: mISDN HFC PCI support depends on virt_to_bus()Stephen Rothwell1-0/+1
On powerpc (allyesconfig build) we get this error: drivers/isdn/hardware/mISDN/hfcpci.c:1991: error: implicit declaration of function 'virt_to_bus' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27task IO accounting: improve code readabilityAndrea Righi7-114/+104
Put all i/o statistics in struct proc_io_accounting and use inline functions to initialize and increment statistics, removing a lot of single variable assignments. This also reduces the kernel size as following (with CONFIG_TASK_XACCT=y and CONFIG_TASK_IO_ACCOUNTING=y). text data bss dec hex filename 11651 0 0 11651 2d83 kernel/exit.o.before 11619 0 0 11619 2d63 kernel/exit.o.after 10886 132 136 11154 2b92 kernel/fork.o.before 10758 132 136 11026 2b12 kernel/fork.o.after 3082029 807968 4818600 8708597 84e1f5 vmlinux.o.before 3081869 807968 4818600 8708437 84e155 vmlinux.o.after Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Acked-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27tracing: remove unused variableAndrea Righi1-1/+0
Remove the following warning with CONFIG_TRACING=y: kernel/trace/trace.c: In function ‘s_next’: kernel/trace/trace.c:1186: warning: unused variable ‘last_ent’ Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27missing bits of net-namespace / sysctlAl Viro7-18/+43
Piss-poor sysctl registration API strikes again, film at 11... What we really need is _pathname_ required to be present in already registered table, so that kernel could warn about bad order. That's the next target for sysctl stuff (and generally saner and more explicit order of initialization of ipv[46] internals wouldn't hurt either). For the time being, here are full fixups required by ..._rotable() stuff; we make per-net sysctl sets descendents of "ro" one and make sure that sufficient skeleton is there before we start registering per-net sysctls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27lost sysctl fixAl Viro1-7/+9
try_attach() should walk into the matching subdirectory, not the first one... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Valdis.Kletnieks@vt.edu Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-27Fix namespace issue with HisaxKarsten Keil3-3/+3
you can pull this git://git./linux/kernel/git/kkeil/ISDN-2.6 master rename release_tei() to TEIrelease() because release_tei() was already exported bei the old HiSax driver. Signed-off-by: Karsten Keil <kkeil@suse.de>
2008-07-27[SCSI] replace __FUNCTION__ with __func__Harvey Harrison49-235/+235
[jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-27[SCSI] extend the last_sector_bug flag to cover more sectorsAlan Jenkins3-7/+23
The last_sector_bug flag was added to work around a bug in certain usb cardreaders, where they would crash if a multiple sector read included the last sector. The original implementation avoids this by e.g. splitting an 8 sector read which includes the last sector into a 7 sector read, and a single sector read for the last sector. The flag is enabled for all USB devices. This revealed a second bug in other usb cardreaders, which crash when they get a multiple sector read which stops 1 sector short of the last sector. Affected hardware includes the Kingston "MobileLite" external USB cardreader and the internal USB cardreader on the Asus EeePC. Extend the last_sector_bug workaround to ensure that any access which touches the last 8 hardware sectors of the device is a single sector long. Requests are shrunk as necessary to meet this constraint. This gives us a safety margin against potential unknown or future bugs affecting multi-sector access to the end of the device. The two known bugs only affect the last 2 sectors. However, they suggest that these devices are prone to fencepost errors and that multi-sector access to the end of the device is not well tested. Popular OS's use multi-sector accesses, but they rarely read the last few sectors. Linux (with udev & vol_id) automatically reads sectors from the end of the device on insertion. It is assumed that single sector accesses are more thoroughly tested during development. Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-27avr32: some mmc/sd cleanupsDavid Brownell3-15/+33
Minor cleanups for the MMC/SD support on avr32: - Make at32_add_device_mci() properly initialize "missing" platform data ... so boards like STK1002 won't try GPIO 0. - Switch over to gpio_is_valid() instead of testing for only one designated value. - Provide STK1002 platform data for the unlikely case that switches are set so first Ethernet controller isn't in use. (That's the only way to get card detect and writeprotect switch sensing on the STK1000.) And get rid of one "unused variable" warning. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-07-27[ARM] Fix shared mmap when more than two maps of the same file existRussell King1-3/+7
The shared mmap code works fine for the test case, which only checked for two shared maps of the same file. However, three shared maps result in one mapping remaining cached, resulting in stale data being visible via that mapping. Fix this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-27[ARM] fix VIPT/VIVT macro optimisations, add commentsRussell King1-4/+13
cacheflush.h was doing: ... VIVT only stuff ... VIPT only stuff ... VIVT or VIPT stuff which is clearly bogus - we would only ever use the "VIVT or VIPT" case when both VIVT and VIPT are not selected. Fix this. Add comments to each case, including noting the impossibility of correctly detecting the cache type of ARM926 and ARMv6 cores from the cache type register in the "VIVT or VIPT" case. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-27KVM: ppc: fix invalidation of large guest pagesHollis Blanchard3-4/+6
When guest invalidates a large tlb map, there may be more than one corresponding shadow tlb maps that need to be invalidated. Use eaddr and eend to find these shadow tlb maps. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27[ARM] 5179/1: Replace obsolete IRQT_* and __IRQT_* values with IRQ_TYPE_*Dmitry Baryshkov61-250/+227
IRQT_* and __IRQT_* were obsoleted long ago by patch [3692/1]. Remove them completely. Sed script for the reference: s/__IRQT_RISEDGE/IRQ_TYPE_EDGE_RISING/g s/__IRQT_FALEDGE/IRQ_TYPE_EDGE_FALLING/g s/__IRQT_LOWLVL/IRQ_TYPE_LEVEL_LOW/g s/__IRQT_HIGHLVL/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_RISING/IRQ_TYPE_EDGE_RISING/g s/IRQT_FALLING/IRQ_TYPE_EDGE_FALLING/g s/IRQT_BOTHEDGE/IRQ_TYPE_EDGE_BOTH/g s/IRQT_LOW/IRQ_TYPE_LEVEL_LOW/g s/IRQT_HIGH/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_PROBE/IRQ_TYPE_PROBE/g s/IRQT_NOEDGE/IRQ_TYPE_NONE/g Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-27KVM: s390: Fix possible host kernel bug on lctl(g) handlingChristian Borntraeger1-0/+6
The lctl(g) instructions require a specific alignment for the parameters. The architecture requires a specification program check if these alignments are not used. Enforcing this alignment also removes a possible host BUG, since the get_guest functions check for proper alignment and emits a BUG. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: s390: Fix instruction naming for lctlgChristian Borntraeger3-6/+6
Lets fix the name for the lctlg instruction... Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: s390: Fix program check on interrupt delivery handlingChristian Borntraeger1-14/+7
The current interrupt handling on s390 misbehaves on an error case. On s390 each cpu has the prefix area (lowcore) for interrupt delivery. This memory must always be available. If we fail to access the prefix area for a guest on interrupt delivery the configuration is completely unusable. There is no point in sending another program interrupt to an inaccessible lowcore. Furthermore, we should not bug the host kernel, because this can be triggered by userspace. I think the guest kernel itself can not trigger the problem, as SET PREFIX and SIGNAL PROCESSOR SET PREFIX both check that the memory is available and sane. As this is a userspace bug (e.g. setting the wrong guest offset, unmapping guest memory) we should kill the userspace process instead of BUGing the host kernel. In the long term we probably should notify the userspace process about this problem. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: s390: Change guestaddr type in gaccessMartin Schwidefsky3-32/+37
All registers are unsigned long types. This patch changes all occurences of guestaddr in gaccess from u64 to unsigned long. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: s390: Fix guest kconfigChristian Borntraeger1-1/+1
Cornelia Huck noticed that a modular virtio without kvm guest support leads to a build error in the s390 virtio transport: CONFIG_VIRTIO=m leads to ERROR: "vmem_add_mapping" [drivers/s390/kvm/kvm_virtio.ko] undefined! ERROR: "max_pfn" [drivers/s390/kvm/kvm_virtio.ko] undefined! ERROR: "vmem_remove_mapping" [drivers/s390/kvm/kvm_virtio.ko] undefined! The virtio transport only works with kvm guest support and only as a builtin. Lets change the build process of drivers/s390/kvm/kvm_virtio.c to depend on kvm guest support, which is also a bool. CONFIG_S390_GUEST already selects CONFIG_VIRTIO, that should prevent CONFIG_S390_GUEST=y CONFIG_VIRTIO=n situations. CC: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: s390: Advertise KVM_CAP_USER_MEMORYCarsten Otte1-1/+6
KVM_CAP_USER_MEMORY is used by s390, therefore, we should advertise it. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: ia64: Fix irq disabling leak in error handling codeJulia Lawall1-2/+3
There is a call to local_irq_restore in the normal exit case, so it would seem that there should be one on an error return as well. The semantic patch that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression l; expression E,E1,E2; @@ local_irq_save(l); ... when != local_irq_restore(l) when != spin_unlock_irqrestore(E,l) when any when strict ( if (...) { ... when != local_irq_restore(l) when != spin_unlock_irqrestore(E1,l) + local_irq_restore(l); return ...; } | if (...) + {local_irq_restore(l); return ...; + } | spin_unlock_irqrestore(E2,l); | local_irq_restore(l); ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: VMX: Fix undefined beaviour of EPT after reload kvm-intel.koSheng Yang1-10/+10
As well as move set base/mask ptes to vmx_init(). Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: VMX: Fix bypass_guest_pf enabling when disable EPT in module parameterSheng Yang1-1/+1
Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: task switch: translate guest segment limit to virt-extension byte granular fieldMarcelo Tosatti1-0/+4
If 'g' is one then limit is 4kb granular. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: Avoid instruction emulation when event delivery is pendingAvi Kivity3-1/+9
When an event (such as an interrupt) is injected, and the stack is shadowed (and therefore write protected), the guest will exit. The current code will see that the stack is shadowed and emulate a few instructions, each time postponing the injection. Eventually the injection may succeed, but at that time the guest may be unwilling to accept the interrupt (for example, the TPR may have changed). This occurs every once in a while during a Windows 2008 boot. Fix by unshadowing the fault address if the fault was due to an event injection. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: task switch: use seg regs provided by subarch instead of reading from GDTMarcelo Tosatti1-63/+30
There is no guarantee that the old TSS descriptor in the GDT contains the proper base address. This is the case for Windows installation's reboot-via-triplefault. Use guest registers instead. Also translate the address properly. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: task switch: segment base is linear addressMarcelo Tosatti1-3/+9
The segment base is always a linear address, so translate before accessing guest memory. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27KVM: SVM: allow enabling/disabling NPT by reloading only the architecture moduleJoerg Roedel3-1/+9
If NPT is enabled after loading both KVM modules on AMD and it should be disabled, both KVM modules must be reloaded. If only the architecture module is reloaded the behavior is undefined. With this patch it is possible to disable NPT only by reloading the kvm_amd module. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-27ALSA: Allow to force model to intel-mac-v3 in snd_hda_intel (sigmatel).Nicolas Boichat2-3/+12
Currently, even if you pass model=intel-mac-v3 as a module parameter to snd_hda_intel, the function patch_stac922x (patch_sigmatel.c) will still try to auto-detect the model type. This is a problem on my MacBook Pro 1st generation, which needs intel-mac-v3, but sometimes incorrectly reports 0x00000100 as subsystem id, which causes the switch in patch_stac922x to select intel-mac-v4. To fix this, I added a new model called intel-mac-auto, so in case no module parameter is passed, and an Intel Mac board is detected, the model will be automatically detected, while no detection will be done if the model is forced to intel-mac-v3. This problem has been around for quite a while, and I used to fix it by moving the case statement for 0x00000100 in patch_stac922x so that intel-mac-v3 is chosen. Another way to fix the problem would be to check if a module parameter was set directly in patch_stac922x, using something like this: if (spec->board_config == STAC_INTEL_MAC_V3 && !codec->bus->modelname) { But I think it is less elegant (if you prefer that way, I can prepare a patch). Signed-off-by: Nicolas Boichat <nicolas@boichat.ch> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-27ALSA: cs4232: fix crash during chip PNP detectionKrzysztof Helt1-0/+1
The acard->wss pointer is uninitialized in this function which leads to crash during chip PNP detection. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-27ALSA: hda - Add automatic model setting for the Acer Aspire 5920G laptopTravis Place1-0/+1
Make the Acer Aspire 5920G (1025:0121) select ALC883_ACER_ASPIRE by default. Signed-off-by: Travis Place <wishie@wishie.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-27ALSA: make snd_ac97_add_vmaster() staticAdrian Bunk1-2/+2
This patch makes the needlessly global snd_ac97_add_vmaster() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-27ALSA: sound/pci/azt3328.h: no variables for enumsAdrian Bunk1-2/+2
AZF_FREQUENCIES and AZF_GAME_CONFIGS were variables, and this doesn't seem to have been intended. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-26fix for a memory leak in an error case introduced by fix for double freeOliver Neukum1-4/+6
The fix NULLed a pointer without freeing it. Signed-off-by: Oliver Neukum <oneukum@suse.de> Reported-by: Juha Motorsportcom <juha_motorsportcom@luukku.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26m68k: gs: use tty_port fixesGeert Uytterhoeven2-55/+56
commit b5391e29f428d11755ca2c91074c6db6f5c69d7c ("gs: use tty_port") forgot to update the m68k gs serial drivers. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>