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2007-10-23Remove old lguest bus and drivers.Rusty Russell10-1385/+0
This gets rid of the lguest bus, drivers and DMA mechanism, to make way for a generic virtio mechanism. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Virtio helper routines for a descriptor ringbuffer implementationRusty Russell3-0/+319
These helper routines supply most of the virtqueue_ops for hypervisors which want to use a ring for virtio. Unlike the previous lguest implementation: 1) The rings are variable sized (2^n-1 elements). 2) They have an unfortunate limit of 65535 bytes per sg element. 3) The page numbers are always 64 bit (PAE anyone?) 4) They no longer place used[] on a separate page, just a separate cacheline. 5) We do a modulo on a variable. We could be tricky if we cared. 6) Interrupts and notifies are suppressed using flags within the rings. Users need only get the ring pages and provide a notify hook (KVM wants the guest to allocate the rings, lguest does it sanely). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dor Laor <dor.laor@qumranet.com>
2007-10-23Module autoprobing support for virtio drivers.Rusty Russell1-0/+18
This adds the logic to convert the virtio ids into module aliases, and includes a modalias entry in sysfs and the env var to make probing work. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Virtio console driverRusty Russell3-0/+230
This is an hvc-based virtio console driver. It's suboptimal becuase hvc expects to have raw access to interrupts and virtio doesn't assume that, so it currently polls. There are two solutions: expose hvc's "kick" interface, or wean off hvc. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Block driver using virtio.Rusty Russell3-0/+315
The block driver uses scatter-gather lists with sg[0] being the request information (struct virtio_blk_outhdr) with the type, sector and inbuf id. The next N sg entries are the bio itself, then the last sg is the status byte. Whether the N entries are in or out depends on whether it's a read or a write. We accept the normal (SCSI) ioctls: they get handed through to the other side which can then handle it or reply that it's unsupported. It's not clear that this actually works in general, since I don't know if blk_pc_request() requests have an accurate rq_data_dir(). Although we try to reply -ENOTTY on unsupported commands, ioctl(fd, CDROMEJECT) returns success to userspace. This needs a separate patch. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Jens Axboe <jens.axboe@oracle.com>
2007-10-23Net driver using virtioRusty Russell3-0/+442
The network driver uses two virtqueues: one for input packets and one for output packets. This has nice locking properties (ie. we don't do any for recv vs send). TODO: 1) Big packets. 2) Multi-client devices (maybe separate driver?). 3) Resolve freeing of old xmit skbs (Christian Borntraeger) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: netdev@vger.kernel.org
2007-10-23Virtio interfaceRusty Russell6-0/+191
This attempts to implement a "virtual I/O" layer which should allow common drivers to be efficiently used across most virtual I/O mechanisms. It will no-doubt need further enhancement. The virtio drivers add buffers to virtio queues; as the buffers are consumed the driver "interrupt" callbacks are invoked. There is also a generic implementation of config space which drivers can query to get setup information from the host. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Dor Laor <dor.laor@qumranet.com> Cc: Arnd Bergmann <arnd@arndb.de>
2007-10-23Boot with virtual == physical to get closer to native Linux.Rusty Russell6-32/+62
1) This allows us to get alot closer to booting bzImages. 2) It means we don't have to know page_offset. 3) The Guest needs to modify the boot pagetables to create the PAGE_OFFSET mapping before jumping to C code. 4) guest_pa() walks the page tables rather than using page_offset. 5) We don't use page_offset to figure out whether to emulate: it was always kinda quesationable, and won't work for instructions done before remapping (bzImage unpacking in particular). 6) We still want the kernel address for tlb flushing: have the initial hypercall give us that, too. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Allow guest to specify syscall vector to use.Rusty Russell4-11/+75
(Based on Ron Minnich's LGUEST_PLAN9_SYSCALL patch). This patch allows Guests to specify what system call vector they want, and we try to reserve it. We only allow one non-Linux system call vector, to try to avoid DoS on the Host. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Rename "cr3" to "gpgdir" to avoid x86-specific naming.Rusty Russell2-12/+12
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Pagetables to use normal kernel typesMatias Zabaljauregui3-141/+98
This is my first step in the migration of page_tables.c to the kernel types and functions/macros (2.6.23-rc3). Seems to be working OK. Signed-off-by: Matias Zabaljauregui <matias.zabaljauregui@cern.ch> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Move register setup into i386_core.cJes Sorensen3-36/+38
Move setup_regs() to lguest_arch_setup_regs() in i386_core.c given that this is very architecture specific. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Change example launcher to use unsigned long not u32Jes Sorensen1-15/+16
Apply Clue 2x4 to lguest userland<->kernel handling code and the lguest launcher. Pointers are not to be passed in u32's! Basic rule of thumb: Anything passing u32's back and forth should be passing unsigned longs to be portable to 64 bit archs. For those who forgotten already, I repeat: NO POINTERS IN u32! Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Make hypercalls arch-independent.Jes Sorensen3-76/+94
Clean up the hypercall code to make the code in hypercalls.c architecture independent. First process the common hypercalls and then call lguest_arch_do_hcall() if the call hasn't been handled. Rename struct hcall_ring to hcall_args. This patch requires the previous patch which reorganize the layout of struct lguest_regs on i386 so they match the layout of struct hcall_args. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Introduce "hcall" pointer to indicate pending hypercall.Rusty Russell4-38/+34
Currently we look at the "trapnum" to see if the Guest wants a hypercall. But once the hypercall is done we have to reset trapnum to a bogus value, otherwise if we exit to userspace and return, we'd run the same hypercall twice (that was a nasty bug to find!). This has two main effects: 1) When Jes's patch changes the hypercall args to be a generic "struct hcall_args" we simply change the type of "lg->hcall". It's set by arch code, so if it has to copy args or something it can do so, and point "hcall" into lg->arch somewhere. 2) Async hypercalls only get run when an actual hypercall is pending. This simplfies the code a little and is a more logical semantic. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Reorder guest saved regs to match hyperall orderJes Sorensen1-2/+2
Move eax next to ebx/ecx/edx in struct lguest_regs on i386, so they will be located together and allow it to map directly to a struct hcall_ring entry (which will be renamed struct hcall_args as in a subsequent patch). This is in preparation for making the code hcall code architecture independent. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Move i386 part of core.c to x86/core.c.Jes Sorensen7-522/+525
Separate i386 architecture specific from core.c and move it to x86/core.c and add x86/lguest.h header file to match. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Make shadow IDT a complete IDT with 256 entries.Rusty Russell2-32/+20
This simplifies the code a little, in preparation for allowing alternate system call vectors in guests (Plan 9 uses 0x40). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Remove fixed limit on number of guests, and lguests array.Rusty Russell6-43/+14
Back when we had all the Guest state in the switcher, we had a fixed array of them. This is no longer necessary. If we switch the network code to using random_ether_addr (46 bits is enough to avoid clashes), we can get rid of the concept of "guest id" altogether. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Introduce guest mem offset, static link example launcherRusty Russell6-38/+50
In order to avoid problematic special linking of the Launcher, we give the Host an offset: this means we can use any memory region in the Launcher as Guest memory rather than insisting on mmap() at 0. The result is quite pleasing: a number of casts are replaced with simple additions. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Rename switcher.S to x86/switcher_32.SRusty Russell2-3/+5
lguest uses a "switcher" shim mapped high to bounce between host and guest. As lguest becomes less i386-centric, we separate this code into a subdir. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Move lguest guest support to arch/x86.Rusty Russell3-1201/+2
Lguest has two sides: host support (to launch guests) and guest support (replacement boot path and paravirt_ops). This moves the guest side to arch/x86/lguest where it's closer to related code. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de>
2007-10-23Clocksource is continuous regardless of the state of the host's TSC.Tony Breeds1-3/+2
Currently lguest will spend a lot of of time waking up the host, as it cannot go tickless (if the [host] TSC has been marked unstable). On my laptop I was getting ~40% of wakeups from lguest. With this patch applied, my laptop is much happier! Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23lguest_devices belongs in lguest_bus.c: it's not i386-specific.Rusty Russell2-1/+2
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Lguest currently depends on 32-bit x86, not just x86.Rusty Russell1-1/+1
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Use copy_to_user() not put_user for struct timespecJes Sorensen1-1/+1
Use copy_to_user() when copying a struct timespec to the guest - put_user() cannot handle two long's in one go on a 64bit arch. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Jes Sorensen <jes@sgi.com> Cc: Al Viro <viro@ftp.linux.org.uk>
2007-10-23Remove binfmts.h include from lg.hRusty Russell1-1/+0
It wasn't needed since a very early prototype of lguest. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-10-23Consolidate host virtualization support under Virtualization menuRusty Russell2-2/+4
Move lguest under the virtualization menu. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Avi Kivity <avi@qumranet.com>
2007-10-23Normalize config options for guest supportRusty Russell1-2/+1
1) Group all the "guest OS" support options together, under a PARAVIRT_GUEST menu. 2) Make those options select CONFIG_PARAVIRT, as suggested by Andi. 3) Make kconfig help titles consistent. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Andi Kleen <ak@suse.de> Cc: Zach Amsden <zach@vmware.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Chris Wright <chrisw@sous-sol.org>
2007-10-22Merge branch 'for-linus' of ↵Linus Torvalds6-40/+54
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: appletouch - apply idle reset logic to all touchpads Input: usbtouchscreen - add support for GoTop tablet devices Input: bf54x-keys - return real error when request_irq() fails Input: i8042 - export i8042_command()
2007-10-22Merge branch 'for-linus' of ↵Linus Torvalds5-68/+103
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: KVM: Use new smp_call_function_mask() in kvm_flush_remote_tlbs() sched: don't clear PF_VCPU in scheduler KVM: Improve local apic timer wraparound handling KVM: Fix local apic timer divide by zero KVM: Move kvm_guest_exit() after local_irq_enable() KVM: x86 emulator: fix access registers for instructions with ModR/M byte and Mod = 3 KVM: VMX: Force vm86 mode if setting flags during real mode KVM: x86 emulator: implement 'movnti mem, reg' KVM: VMX: Reset mmu context when entering real mode KVM: VMX: Handle NMIs before enabling interrupts and preemption KVM: MMU: Set shadow pte atomically in mmu_pte_write_zap_pte() KVM: x86 emulator: fix repne/repnz decoding KVM: x86 emulator: fix merge screwup due to emulator split
2007-10-22Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds6-44/+41
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] 4level-fixup cleanup [S390] Cleanup page table definitions. [S390] Introduce follow_table in uaccess_pt.c [S390] Remove unused user_seg from thread structure. [S390] tlb flush fix. [S390] kernel: Fix dump on panic for DASDs under LPAR. [S390] struct class_device -> struct device conversion. [S390] cio: Fix incomplete commit for uevent suppression. [S390] cio: Use to_channelpath() for device to channel path conversion. [S390] Add per-cpu idle time / idle count sysfs attributes. [S390] Update default configuration.
2007-10-22Merge branch 'master' of ↵Linus Torvalds17-433/+1912
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits) [IPSEC] IPV6: Fix to add tunnel mode SA correctly. [NET]: Cut off the queue_mapping field from sk_buff [NET]: Hide the queue_mapping field inside netif_subqueue_stopped [NET]: Make and use skb_get_queue_mapping [NET]: Use the skb_set_queue_mapping where appropriate [INET]: Use MODULE_ALIAS_NET_PF_PROTO_TYPE where possible. [INET]: Let inet_diag and friends autoload [NIU]: Cleanup PAGE_SIZE checks a bit [NET]: Fix SKB_WITH_OVERHEAD calculation [ATM]: Fix clip module reload crash. [TG3]: Update version to 3.85 [TG3]: PCI command adjustment [TG3]: Add management FW version to ethtool report [TG3]: Add 5723 support [Bluetooth] Convert RFCOMM to use kthread API [Bluetooth] Add constant for Bluetooth socket options level [Bluetooth] Add support for handling simple eSCO links [Bluetooth] Add address and channel attribute to RFCOMM TTY device [Bluetooth] Fix wrong argument in debug code of HIDP [Bluetooth] Add generic driver for Bluetooth USB devices ...
2007-10-22Merge branch 'master' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Enable restart support for lite5200 board [POWERPC] Add restart support for mpc52xx based platforms [POWERPC] Update device tree binding for mpc5200 gpt [POWERPC] Add mpc52xx_find_and_map_path(), refactor utility functions [POWERPC] bestcomm: Restrict bus prefetch bugfix to original mpc5200 silicon.
2007-10-22Merge git://git.infradead.org/battery-2.6Linus Torvalds1-39/+102
* git://git.infradead.org/battery-2.6: apm_power: calculate to_full/to_empty time using energy apm_power: improve battery finding algorithm apm_power: fix obviously wrong logic for time reporting
2007-10-22Merge branch 'master' of ↵Linus Torvalds66-681/+556
ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (37 commits) V4L/DVB (6382): saa7134: fix NULL dereference at suspend time for cards without IR receiver V4L/DVB (6380): ivtvfb: Removal of the 'osd_compat' module option V4L/DVB (6379): patch which improves GotView Saa7135 remote control V4L/DVB (6378b): Updates info about the removal of V4L1 at feature-removal-schedule.txt V4L/DVB (6378a): Removal of VIDIOC_[G|S]_MPEGCOMP from feature-removal-schedule.txt V4L/DVB (6378): DiB0700-device: Using 1.10 firmware V4L/DVB (6357): pvrusb2: Improve encoder chip health tracking V4L/DVB (6356): "while (!ca->wakeup)" breaks the CAM initialisation V4L/DVB (6352): ir-kbd-i2c: Missing break statement V4L/DVB (6350): V4L: possible leak in em28xx_init_isoc V4L/DVB (6348): ivtv: undo video mute when closing the radio V4L/DVB (6347): ivtv: fix video mute when radio is used V4L/DVB (6346): ivtvfb: YUV output size fix when ivtvfb is not loaded V4L/DVB (6345): ivtvfb: YUV handling of an image which is not visible in the display area V4L/DVB (6343): ivtvfb: check return value of unregister_framebuffer V4L/DVB (6342): ivtv: fix circular locking (bug 9037) V4L/DVB (6341): ivtv: fix resizing MPEG1 streams V4L/DVB (6340): ivtvfb: screen mode change sometimes goes wrong V4L/DVB (6339): ivtv: set the video color to black instead of green when capturing from the radio V4L/DVB (6338): ivtv: fix incorrect EBUSY return ...
2007-10-22Merge branch 'for-linus' of ↵Linus Torvalds1-4/+9
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: fw-ohci: shut up a superfluous compiler warning firewire: fw-ohci: log a note about unsupported features
2007-10-22Merge branch 'sg' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds81-274/+277
* 'sg' of git://git.kernel.dk/linux-2.6-block: Add CONFIG_DEBUG_SG sg validation Change table chaining layout Update arch/ to use sg helpers Update swiotlb to use sg helpers Update net/ to use sg helpers Update fs/ to use sg helpers [SG] Update drivers to use sg helpers [SG] Update crypto/ to sg helpers [SG] Update block layer to use sg helpers [SG] Add helpers for manipulating SG entries
2007-10-23Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xxPaul Mackerras1-0/+3
2007-10-22[SG] Update drivers to use sg helpersJens Axboe81-274/+277
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22firewire: fw-ohci: shut up a superfluous compiler warningStefan Richter1-1/+1
New warning since commit ab88ca488b8af66c3defa165874e81e695319a19, "firewire: fw-ohci: missing dma_unmap_single": drivers/firewire/fw-ohci.c: In function 'at_context_transmit': drivers/firewire/fw-ohci.c:609: warning: 'payload_bus' may be used uninitialized in this function Access to payload_bus is conditional on packet->payload_length > 0, and that won't change while in at_context_queue_packet. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-10-22firewire: fw-ohci: log a note about unsupported featuresStefan Richter1-3/+8
because there seems to be more time needed to implement this. Also, change related error return values to more appropriate ones. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-10-22KVM: Use new smp_call_function_mask() in kvm_flush_remote_tlbs()Laurent Vivier1-23/+3
In kvm_flush_remote_tlbs(), replace a loop using smp_call_function_single() by a single call to smp_call_function_mask() (which is new for x86_64). Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-10-22intel-iommu sg chaining supportFUJITA Tomonori1-17/+17
x86_64 defines ARCH_HAS_SG_CHAIN. So if IOMMU implementations don't support sg chaining, we will get data corruption. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22intel-iommu: fix for IOMMU early crashKeshavamurthy, Anil S1-11/+11
pci_dev's->sysdata is highly overloaded and currently IOMMU is broken due to IOMMU code depending on this field. This patch introduces new field in pci_dev's dev.archdata struct to hold IOMMU specific per device IOMMU private data. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg KH <greg@kroah.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22intel-iommu: optimize sg map/unmap callsKeshavamurthy, Anil S3-160/+231
This patch adds PageSelectiveInvalidation support replacing existing DomainSelectiveInvalidation for intel_{map/unmap}_sg() calls and also enables to mapping one big contiguous DMA virtual address which is mapped to discontiguous physical address for SG map/unmap calls. "Doamin selective invalidations" wipes out the IOMMU address translation cache based on domain ID where as "Page selective invalidations" wipes out the IOMMU address translation cache for that address mask range which is more cache friendly when compared to Domain selective invalidations. Here is how it is done. 1) changes to iova.c alloc_iova() now takes a bool size_aligned argument, which when when set, returns the io virtual address that is naturally aligned to 2 ^ x, where x is the order of the size requested. Returning this io vitual address which is naturally aligned helps iommu to do the "page selective invalidations" which is IOMMU cache friendly over "domain selective invalidations". 2) Changes to driver/pci/intel-iommu.c Clean up intel_{map/unmap}_{single/sg} () calls so that s/g map/unamp calls is no more dependent on intel_{map/unmap}_single() intel_map_sg() now computes the total DMA virtual address required and allocates the size aligned total DMA virtual address and maps the discontiguous physical address to the allocated contiguous DMA virtual address. In the intel_unmap_sg() case since the DMA virtual address is contiguous and size_aligned, PageSelectiveInvalidation is used replacing earlier DomainSelectiveInvalidations. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Greg KH <greg@kroah.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Suresh B <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22Intel IOMMU: Iommu floppy workaroundKeshavamurthy, Anil S1-0/+27
This config option (DMAR_FLPY_WA) sets up 1:1 mapping for the floppy device so that the floppy device which does not use DMA api's will continue to work. Once the floppy driver starts using DMA api's this config option can be turn off or this patch can be yanked out of kernel at that time. [akpm@linux-foundation.org: cleanups, rename things, build fix] [jengelh@computergmbh.de: Kconfig fixes] Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ashok Raj <ashok.raj@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christoph Lameter <clameter@sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22Intel IOMMU: Iommu Gfx workaroundKeshavamurthy, Anil S2-0/+40
When we fix all the opensource gfx drivers to use the DMA api's, at that time we can yank this config options out. [jengelh@computergmbh.de: Kconfig fixes] Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ashok Raj <ashok.raj@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christoph Lameter <clameter@sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22Intel IOMMU: DMAR fault handling supportKeshavamurthy, Anil S1-0/+194
MSI interrupt handler registrations and fault handling support for Intel-IOMMU hadrware. This patch enables the MSI interrupts for the DMA remapping units and in the interrupt handler read the fault cause and outputs the same on to the console. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ashok Raj <ashok.raj@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christoph Lameter <clameter@sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22Intel IOMMU: Intel iommu cmdline option - forcedacKeshavamurthy, Anil S1-1/+6
Introduce intel_iommu=forcedac commandline option. This option is helpful to verify the pci device capability of handling physical dma'able address greater than 4G. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ashok Raj <ashok.raj@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christoph Lameter <clameter@sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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