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* sparseirq: fix numa_migrate_irq_desc dependency and commentsYinghai Lu2008-12-192-2/+2
| | | | | | | | | | | | Impact: reduce kconfig variable scope and clean up Bartlomiej pointed out that the config dependencies and comments are not right. update it depend to NUMA, and fix some comments Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* sparseirq: fix !SMP building, #2Yinghai Lu2008-12-171-1/+1
| | | | | | | | | | | Impact: build fix make intr_remapping.c to include smp.h, so could use boot_cpu_id there also remove old change that disabling sparseirq with !SMP Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, sparseirq: move irq_desc according to smp_affinity, v7Yinghai Lu2008-12-172-1/+150
| | | | | | | | | | | | | | | | | Impact: improve NUMA handling by migrating irq_desc on smp_affinity changes if CONFIG_NUMA_MIGRATE_IRQ_DESC is set: - make irq_desc to go with affinity aka irq_desc moving etc - call move_irq_desc in irq_complete_move() - legacy irq_desc is not moved, because they are allocated via static array for logical apic mode, need to add move_desc_in_progress_in_same_domain, otherwise it will not be moved ==> also could need two phases to get irq_desc moved. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* sparseirq: fix !SMP && !PCI_MSI && !HT_IRQ buildYinghai Lu2008-12-091-1/+1
| | | | | | | | | | | Ingo Molnar wrote: >>> drivers/pci/intr_remapping.c: In function 'irq_2_iommu_alloc': >>> drivers/pci/intr_remapping.c:72: error: 'boot_cpu_id' undeclared (first use in this function) >>> drivers/pci/intr_remapping.c:72: error: (Each undeclared identifier is reported only once >>> drivers/pci/intr_remapping.c:72: error: for each function it appears in.) sparseirq should only be used with SMP for now.
* sparseirq: fix typo in !CONFIG_IO_APIC caseIngo Molnar2008-12-081-5/+2
| | | | | | Impact: build fix Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, MSI: pass irq_cfg and irq_descYinghai Lu2008-12-081-137/+181
| | | | | | | | | | Impact: simplify code Pass irq_desc and cfg around, instead of raw IRQ numbers - this way we dont have to look it up again and again. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: MSI start irq numbering from nr_irqs_gsiYinghai Lu2008-12-083-9/+19
| | | | | | | | | | | | Impact: sanitize MSI irq number ordering from top-down to bottom-up Increase new MSI IRQs starting from nr_irqs_gsi (which is somewhere below 256), instead of decreasing from NR_IRQS. (The latter method can result in confusingly high IRQ numbers - if NR_CPUS is set to a high value and NR_IRQS scales up to a high value.) Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: use NR_IRQS_LEGACYYinghai Lu2008-12-084-7/+9
| | | | | | | | | Impact: cleanup Introduce NR_IRQS_LEGACY instead of hard coded number. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* sparse irq_desc[] array: core kernel and x86 changesYinghai Lu2008-12-088-113/+216
| | | | | | | | | | | | | | | | | | | | | Impact: new feature Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with NR_CPUS set to large values. The goal is to be able to scale up to much larger NR_IRQS value without impacting the (important) common case. To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of irq_desc pointers. When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc, this also makes the IRQ descriptors NUMA-local (to the site that calls request_irq()). This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now uses desc->chip_data for x86 to store irq_cfg. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* MIPS: Fix incorrect use of loose in vpe.cNick Andrew2008-12-051-1/+1
| | | | | | | It should be 'lose', not 'loose'. Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge branch 'merge' of ↵Linus Torvalds2008-12-042-2/+2
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc: powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigs
| * powerpc/83xx: Enable FIXED_PHY in mpc834x_itx and mpc83xx defconfigsAnton Vorontsov2008-12-042-2/+2
| | | | | | | | | | | | | | | | | | This is needed so that Vitesse 7385 5-port switch could work on MPC8349E-mITX boards. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-12-043-3/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Sync FPU state in VIS emulation handler. sparc64: Fix VIS emulation bugs sparc: asm/bitops.h should define __fls sparc64: Fix bug in PTRACE_SETFPREGS64 handling.
| * | sparc64: Sync FPU state in VIS emulation handler.Hong H. Pham2008-12-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Copy the FPU state to the task's thread_info->fpregs for the VIS emulation functions to access. Signed-off-by: Hong H. Pham <hong.pham@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc64: Fix VIS emulation bugsJoseph Myers2008-12-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes some bugs in VIS emulation that cause the GCC test failure FAIL: gcc.target/sparc/pdist-3.c execution test for both 32-bit and 64-bit testing on hardware lacking these instructions. The emulation code for the pdist instruction uses RS1(insn) for both source registers rs1 and rs2, which is obviously wrong and leads to the instruction doing nothing (the observed problem), and further inspection of the code shows that RS1 uses a shift of 24 and RD a shift of 25, which clearly cannot both be right; examining SPARC documentation indicates the correct shift for RS1 is 14. This patch fixes the bug if single-stepping over the affected instruction in the debugger, but not if the testcase is run standalone. For that, Wind River has another patch I hope they will send as a followup to this patch submission. Signed-off-by: Joseph Myers <joseph@codesourcery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: asm/bitops.h should define __flsRusty Russell2008-12-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bitops_64.h includes the generic one; pretty sure 32 should too. (Found by using __fls in generic code and breaking sparc defconfig build: thanks Stephen and linux-next!) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc64: Fix bug in PTRACE_SETFPREGS64 handling.Chris Torek2008-12-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Chris Torek <chris.torek@windriver.com> >The SPARC64 kernel code for PTRACE_SETFPREGS64 appears to be an exact copy >of that for PTRACE_GETFPREGS64. This means that gdbserver and native >64-bit GDB cannot set floating-point registers. It looks like a simple typo. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-12-047-39/+41
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix early panic with boot option "nosmp" x86/oprofile: fix Intel cpu family 6 detection oprofile: fix CPU unplug panic in ppro_stop() AMD IOMMU: fix possible race while accessing iommu->need_sync AMD IOMMU: set device table entry for aliased devices AMD IOMMU: struct amd_iommu remove padding on 64 bit x86: fix broken flushing in GART nofullflush path x86: fix dma_mapping_error for 32bit x86
| * | | x86: fix early panic with boot option "nosmp"Andi Kleen2008-12-041-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix boot crash with numcpus=0 on certain systems Fix early exception in __get_smp_config with nosmp. Bail out early when there is no MP table. Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | Merge branch 'oprofile-for-tip' of ↵Ingo Molnar2008-12-032-3/+6
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
| | * | | x86/oprofile: fix Intel cpu family 6 detectionWilliam Cohen2008-12-031-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Alan Jenkins wrote: > This is on an EeePC 701, /proc/cpuinfo as attached. > > Is this expected? Will the next release work? > > Thanks, Alan > > # opcontrol --setup --no-vmlinux > cpu_type 'unset' is not valid > you should upgrade oprofile or force the use of timer mode > > # opcontrol -v > opcontrol: oprofile 0.9.4 compiled on Nov 29 2008 22:44:10 > > # cat /dev/oprofile/cpu_type > i386/p6 > # uname -r > 2.6.28-rc6eeepc Hi Alan, Looking at the kernel driver code for oprofile it can return the "i386/p6" for the cpu_type. However, looking at the user-space oprofile code there isn't the matching entry in libop/op_cpu_type.c or the events/unit_mask files in events/i386 directory. The Intel AP-485 says this is a "Intel Pentium M processor model D". Seems like the oprofile kernel driver should be identifying the processor as "i386/p6_mobile" The driver identification code doesn't look quite right in nmi_init.c http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=blob;f=arch/x86/oprofile/nmi_int.c;h=022cd41ea9b4106e5884277096e80e9088a7c7a9;hb=HEAD has: 409 case 10 ... 13: 410 *cpu_type = "i386/p6"; 411 break; Referring to the Intel AP-485: case 10 and 11 should produce "i386/piii" case 13 should produce "i386/p6_mobile" I didn't see anything for case 12. Something like the attached patch. I don't have a celeron machine to verify that changes in this area of the kernel fix thing. -Will Signed-off-by: William Cohen <wcohen@redhat.com> Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk> Acked-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| | * | | oprofile: fix CPU unplug panic in ppro_stop()Eric Dumazet2008-12-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If oprofile statically compiled in kernel, a cpu unplug triggers a panic in ppro_stop(), because a NULL pointer is dereferenced. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
| * | | | Merge branch 'iommu-fixes-2.6.28' of ↵Ingo Molnar2008-12-0390-840/+3162
| |\ \ \ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
| | * | | | AMD IOMMU: fix possible race while accessing iommu->need_syncJoerg Roedel2008-12-031-20/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The access to the iommu->need_sync member needs to be protected by the iommu->lock. Otherwise this is a possible race condition. Fix it with this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | AMD IOMMU: set device table entry for aliased devicesJoerg Roedel2008-12-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some rare cases a request can arrive an IOMMU with its originial requestor id even it is aliased. Handle this by setting the device table entry to the same protection domain for the original and the aliased requestor id. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | AMD IOMMU: struct amd_iommu remove padding on 64 bitRichard Kennedy2008-12-031-12/+12
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove 16 bytes of padding from struct amd_iommu on 64bit builds reducing its size to 120 bytes, allowing it to span one fewer cachelines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | | | x86: fix broken flushing in GART nofullflush pathJoerg Roedel2008-12-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: remove stale IOTLB entries In the non-default nofullflush case the GART is only flushed when next_bit wraps around. But it can happen that an unmap operation unmaps memory which is behind the current next_bit location. If these addresses are reused it may result in stale GART IO/TLB entries. Fix this by setting the GART next_bit always behind an unmapped location. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: fix dma_mapping_error for 32bit x86Thomas Bogendoerfer2008-11-291-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Devices like b44 ethernet can't dma from addresses above 1GB. The driver handles this cases by falling back to GFP_DMA allocation. But for detecting the problem it needs to get an indication from dma_mapping_error. The bug is triggered by using a VMSPLIT option of 2G/2G. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds2008-12-041-1/+1
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: don't export sched_mc_power_savings in laptops
| * | | | | sched: don't export sched_mc_power_savings in laptopsMahesh Salgaonkar2008-12-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: do not expose a control that has no effect Fix to prevent sched_mc_power_saving from being exported through sysfs on single-socket systems. (Say multicore single socket (Laptop)) CPU core map of the boot cpu should be equal to possible number of cpus for single socket system. This fix has been developed at FOSS.in kernel workout. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2008-12-049-865/+1405
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere. MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32. MIPS: o32: Fix number of arguments to splice(2). MIPS: Malta: Consolidate platform device code. MIPS: IP22, Fulong, Malta: Update defconfigs. MIPS: Malta: Add back RTC support MIPS: Fix potential DOS by untrusted user app.
| * | | | | | MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.David Daney2008-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the o32 errno was changed to ENOSYS, we forgot to update the code for 64bit kernels. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | | MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.Ralf Baechle2008-12-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | | MIPS: o32: Fix number of arguments to splice(2).Ralf Baechle2008-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The syscall code was assuming splice only takes 4 arguments so no stack arguments were being copied from the userspace stack to the kernel stack. As the result splice was likely to fail with EINVAL. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | | MIPS: Malta: Consolidate platform device code.Ralf Baechle2008-12-043-69/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After adding the RTC platform device to malta-platform.c malta-mtd.c should get unified with the rest of the platform device code.
| * | | | | | MIPS: IP22, Fulong, Malta: Update defconfigs.Ralf Baechle2008-12-043-782/+1273
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These haven't seen much attention for too long but particularly important enable RTC_CLASS and CONFIG_RTC_HCTOSYS so the wall clock time is set on kernel startup. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | | MIPS: Malta: Add back RTC supportTiejun Chen2008-12-042-11/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the conversion of MIPS to RTC_LIB the old RTC driver CONFIG_RTC became unselectable. Fix by setting up a platform device. Also enable RTC_CLASS so system time gets set from RTC on kernel initialization. [Ralf: Original patch by Tiejun; polished nice and shiny by me] Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | | | MIPS: Fix potential DOS by untrusted user app.Vlad Malov2008-12-042-11/+6
| | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a 64 bit kernel if an o32 syscall was made with a syscall number less than 4000, we would read the function from outside of the bounds of the syscall table. This led to non-deterministic behavior including system crashes. While we were at it we reworked the 32 bit version as well to use fewer instructions. Both 32 and 64 bit versions are use the same code now. Signed-off-by: Vlad Malov <Vlad.Malov@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | | | MN10300: Introduce barriers to replace removed volatiles in gdbstub 16550 driverDavid Howells2008-12-031-0/+2
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce into the MN10300 gdbstub 16550 driver a couple of barrier() calls to replace the removed volatility of the input/output index variables for the Rx ring buffer. A previous patch added them into the on-chip serial port driver. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | powerpc/83xx: Fix MCU support merge issue in mpc8349emitx.dtsAnton Vorontsov2008-12-031-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just found the merge issue in 442746989d92afc125040e0f29b33602ad94da99 ("powerpc/83xx: Add support for MCU microcontroller in .dts files"): the commit adds the MCU controller node into the DMA node, which is wrong because the MCU sits on the I2C bus. Fix this by moving the MCU node into the I2C controller node. The original patch[1] was OK though. ;-) Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | | | | powerpc: Fix dma_map_sg() cache flushing on non coherent platformsBenjamin Herrenschmidt2008-12-031-0/+1
| |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On PowerPC 4xx or other non cache-coherent platforms, we lost the appropriate cache flushing in dma_map_sg() when merging the 32 and 64-bit DMA code (commit 4fc665b88a79a45bae8bbf3a05563c27c7337c3d, "powerpc: Merge 32 and 64-bit dma code"). This restores it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | | Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds2008-12-029-7/+29
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: MMU: avoid creation of unreachable pages in the shadow KVM: ppc: stop leaking host memory on VM exit KVM: MMU: fix sync of ptes addressed at owner pagetable KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLER KVM: ia64: Fix incorrect kbuild CFLAGS override KVM: VMX: Fix interrupt loss during race with NMI KVM: s390: Fix problem state handling in guest sigp handler
| * | | | KVM: MMU: avoid creation of unreachable pages in the shadowMarcelo Tosatti2008-11-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible for a shadow page to have a parent link pointing to a freed page. When zapping a high level table, kvm_mmu_page_unlink_children fails to remove the parent_pte link. For that to happen, the child must be unreachable via the shadow tree, which can happen in shadow_walk_entry if the guest pte was modified in between walk() and fetch(). Remove the parent pte reference in such case. Possible cause for oops in bug #2217430. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: ppc: stop leaking host memory on VM exitHollis Blanchard2008-11-253-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the VM exits, we must call put_page() for every page referenced in the shadow TLB. Without this patch, we usually leak 30-50 host pages (120 - 200 KiB with 4 KiB pages). The maximum number of pages leaked is the size of our shadow TLB, 64 pages. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: MMU: fix sync of ptes addressed at owner pagetableMarcelo Tosatti2008-11-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During page sync, if a pagetable contains a self referencing pte (that points to the pagetable), the corresponding spte may be marked as writable even though all mappings are supposed to be write protected. Fix by clearing page unsync before syncing individual sptes. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLERXiantao Zhang2008-11-231-4/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PAL_VPS_RESUME_HANDLER should use r26 to hold vac fields according to SDM. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: ia64: Fix incorrect kbuild CFLAGS overrideXiantao Zhang2008-11-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use CFLAGS_vcpu.o, not EXTRA_CFLAGS, to provide fixed register information to the compiler. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: VMX: Fix interrupt loss during race with NMIAvi Kivity2008-11-231-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an interrupt cannot be injected for some reason (say, page fault when fetching the IDT descriptor), the interrupt is marked for reinjection. However, if an NMI is queued at this time, the NMI will be injected instead and the NMI will be lost. Fix by deferring the NMI injection until the interrupt has been injected successfully. Analyzed by Jan Kiszka. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | KVM: s390: Fix problem state handling in guest sigp handlerChristian Borntraeger2008-11-231-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can get an exit for instructions starting with 0xae, even if the guest is in userspace. Lets make sure, that the signal processor handler is only called in guest supervisor mode. Otherwise, send a program check. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-12-021-1/+1
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix offset calculation in compute_size() rtc: rtc-starfire fixes
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