| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (147 commits)
KVM: kill file->f_count abuse in kvm
KVM: MMU: kvm_pv_mmu_op should not take mmap_sem
KVM: SVM: remove selective CR0 comment
KVM: SVM: remove now obsolete FIXME comment
KVM: SVM: disable CR8 intercept when tpr is not masking interrupts
KVM: SVM: sync V_TPR with LAPIC.TPR if CR8 write intercept is disabled
KVM: export kvm_lapic_set_tpr() to modules
KVM: SVM: sync TPR value to V_TPR field in the VMCB
KVM: ppc: PowerPC 440 KVM implementation
KVM: Add MAINTAINERS entry for PowerPC KVM
KVM: ppc: Add DCR access information to struct kvm_run
ppc: Export tlb_44x_hwater for KVM
KVM: Rename debugfs_dir to kvm_debugfs_dir
KVM: x86 emulator: fix lea to really get the effective address
KVM: x86 emulator: fix smsw and lmsw with a memory operand
KVM: x86 emulator: initialize src.val and dst.val for register operands
KVM: SVM: force a new asid when initializing the vmcb
KVM: fix kvm_vcpu_kick vs __vcpu_run race
KVM: add ioctls to save/store mpstate
KVM: Rename VCPU_MP_STATE_* to KVM_MP_STATE_*
...
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This patch implements kvm guest kernel support for paravirtualized devices
and contains two parts:
o a basic virtio stub using virtio_ring and external interrupts and hypercalls
o full hypercall implementation in kvm_para.h
Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems
more complicated that providing an own stub. This virtio stub is similar to
the lguest one, the memory for the descriptors and the device detection is made
via additional mapped memory on top of the guest storage. We use an external
interrupt with extint code 0x2603 for host->guest notification.
The hypercall definition uses the diag instruction for issuing a hypercall. The
parameters are written in R2-R7, the hypercall number is written in R1. This is
similar to the system call ABI (svc) which can use R1 for the number and R2-R6
for the parameters.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (49 commits)
ide-tape: remove tape->merge_stage
ide-tape: mv tape->merge_stage_size tape->merge_bh_size
ide-tape: mv idetape_empty_write_pipeline ide_tape_flush_merge_buffer
ide-tape: mv idetape_discard_read_pipeline ide_tape_discard_merge_buffer
ide-tape: make __idetape_discard_read_pipeline() of type void
ide: remove now unused ide_pci_create_host_proc()
ide: remove /proc/ide/ali
ide-tape: improve buffer pages freeing strategy
ide-tape: mv tape->pages_per_stage tape->pages_per_buffer
ide-tape: mv tape->stage_size tape->buffer_size
ide-tape: improve buffer allocation strategy
ide: add struct ide_io_ports (take 3)
ide: make ide_unregister() take 'ide_hwif_t *' as an argument (take 2)
ide: sanitize ide_unregister() usage
mpc8xx-ide: use ide_find_port()
ide: add "noacpi" / "acpigtf" / "acpionboot" parameters
gayle: add "doubler" parameter
ide: add "cdrom=" and "chs=" parameters
ide: add "nodma|noflush|noprobe|nowerr=" parameters
ide: remove obsoleted "hdx=autotune" kernel parameter
...
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Get rid of the pipeline merge stage but retain the chrdev req caching
functionality by using a merge buffer tape->merge_bh which is flushed in chunks
of several blocks at a time. Also, remove last references to pipelining, e.g.
typedef idetape_stage_s.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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This is the size of the merge buffer.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Also, rename its __-low level helper too.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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It always returns 0 which has no effect on tape positioning calculation so
simplify it by converting its type to void, bringing no functional change to the
driver.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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It creates files in proc with obsoleted ->get_info interface.
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bart says: "can be done from user-space and is not especially interesting
even when debugging problems (raw PCI config space dump is far more useful)."
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Instead of freeing pages one by one, free them 2^order-wise. Also, mv
__idetape_kfree_stage() to ide_tape_kfree_buffer().
[bart: add updating bh->b_data]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Instead of allocating pages for the buffer one by one, take advantage of the
buddy alloc system and request them 2^order at a time. This increases the chance
for bigger buffer parts to be contigious and reduces loop iteration count. While
at it, rename function __idetape_kmalloc_stage() to ide_tape_kmalloc_buffer().
[bart: fold with "ide-tape: fix mem leak" patch to preserve bisectability]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add struct ide_io_ports and use it instead of `unsigned long io_ports[]`
in ide_hwif_t.
* Rename io_ports[] in hw_regs_t to io_ports_array[].
* Use un-named union for 'unsigned long io_ports_array[]' and 'struct
ide_io_ports io_ports' in hw_regs_t.
* Remove IDE_*_OFFSET defines.
v2:
* scc_pata.c build fix from Stephen Rothwell.
v3:
* Fix ctl_adrr typo in Sparc-specific part of ns87415.c.
(Noticed by Andrew Morton)
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Make ide_unregister() take 'ide_hwif_t *hwif' instead of 'unsigned int
index' (hwif->index) as an argument and update all users accordingly.
While at it:
* Remove unnecessary checks for hwif != NULL from ide-pnp.c::idepnp_remove()
and delkin_cb.c::delkin_cb_remove().
* Remove needless hwif->chipset assignment from scc_pata.c::scc_remove().
v2:
* Fixup ide_unregister() documentation.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove ide_unregister() call from ide_exit()
(host drivers take care of unregistering hwif-s themselves).
* Remove ide_unregister() call from probe methods of
bast-ide, palm_bk3710, ide-cs and delkin_cb host drivers
(ide_find_port() returns only free ide_hwifs[] entries).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Rename ide_noacpi{tfs,onboot} to ide_acpi{gtf,onboot} (+ reverse logic).
* Move ide_*acpi* variables to ide-acpi.c and remove unnecessary initializers.
* Add "noacpi" / "acpigtf" / "acpionboot" parameters.
* Obsolete "ide=noacpi" / "ide=acpigtf" / "ide=acpionboot" kernel parameters.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add "doubler" parameter to enable support for IDE doublers.
* Obsolete "ide=doubler" kernel parameter.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add "cdrom=" and "chs=" parameters.
* Obsolete "hdx=cdrom" and "hdx=cyls,heads,sects" kernel parameters.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add "nodma|noflush|noprobe|nowerr=" parameters.
* Obsolete "hdx=noprobe|none|nowerr|nodma|noflush" kernel parameters.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove obsoleted "hdx=autotune" kernel parameter
(we always auto-tune PIO if possible nowadays).
* Remove no longer needed ide_drive_t.autotune flag.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Don't set IDE_HFLAG_NO_AUTOTUNE host flag in sgiioc4 and icside
host drivers - there is no need for it as they don't implement
->set_pio_mode method.
* Remove no longer needed IDE_HFLAG_NO_AUTOTUNE host flag.
There should be no functional changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Default to tuning PIO0 and disabling prefetch prior to probing
devices for CONFIG_BLK_DEV_CMD640_ENHANCED=y case.
* Always auto-tune PIO.
* Remove no longer used retrieve_drive_counts().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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We have "vlb|pci_clock=" parameters now.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add "vlb_clock=" parameter for specifying VLB clock frequency (in MHz).
* Add "pci_clock=" parameter for specifying PCI bus clock frequency (in MHz).
While at it:
* qd65xx.c: rename {active,recovery}_cycle variables to {act,rec}_cyc.
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Bart:
- merge "ide-tape: remove pipeline-specific code from idetape_setup" patch
- cleanup __idetape_discard_read_pipeline()
- cleanup idetape_empty_write_pipeline()
- fix 't' assignment in idetape_setup()
- fix idetape_blkdev_ioctl() w.r.t. 'nr_stages'
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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[bart: sync patch with current code and fix idetape_init_read()]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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The driver is using now solely its own request queue.
- tape->next_stage is always NULL so it is safe to remove
all code depending on tape->next_stage != NULL
- this patch removes the last place which sets
IDETAPE_FLAG_PIPELINE_ACTIVE in tape->flags
[bart: add above explanations]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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idetape_queue_pc_tail() is a wrapper for its __idetape_queue_pc_tail() counterpart
and has no other functionality. Remove it and call the "wrapped" function
directly.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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As a side effect, remove unused idetape_kfree_stage() and
idetape_abort_pipeline()
[bart: resurrect taking tape->lock + clearing IDETAPE_FLAG_PIPELINE_ACTIVE]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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The computation of the block offset of the the tape position (MTIOCPOS,
MTIOCGET) is not influenced by the stages queued in the pipeline anymore but by
the size of the current buffer which is going to be sent to the drive.
[bart: resurrect deleted idetape_wait_for_pipeline() call]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Since we don't do pipeline read-ahead anymore, we don't have to look for
filemarks we have crossed. Therefore, remove the code chunk that does that and
pass on the command to the tape. As a side effect, remove unused
idetape_wait_first_stage().
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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In order to do away with queueing read requests on the pipeline, several things
have to be done:
1. Do not allocate additional pipeline stages in idetape_init_read() until
(tape->nr_stages < max_stages) and do only read operation preparations. As a
collateral result, idetape_add_stage_tail() becomes unused so remove it.
2. Queue the read request's buffer directly thru idetape_queue_rw_tail().
3. Remove now unused idetape_kmalloc_stage() and idetape_switch_buffers().
[bart: simplify the original patch]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Pipeline handling calculations in idetape_calculate_speeds() can
go since they do not have any effect on other functionality besides:
1. info is only being exported through /proc as a read-only item
(controlled_pipeline_head_speed, uncontrolled_pipeline_head_speed)
2. used in idetape_restart_speed_control() which, in turn, is unrelated to
other code
3. used only for pipeline frames number accounting (tape->pipeline_head),
also unused elsewhere.
4.some variables are:
only written to: tape->buffer_head;
unused: tape->tape_head, tape->last_tape_head
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Refrain from adding more write requests to the pipeline and queue them
directly on the device's request queue instead.
[bart: re-do for minimal behavior changes]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Prior to allocating a new pipeline stage, the code checked for the existence of
a cached pipeline stage to use. Do away with and stick to normal pipeline
stages only.
[bart: keep idetape_kmalloc_stage() for now]
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove obsoleted "hdx=noautotune" kernel parameter
(it has been obsoleted since 1 Nov 2004).
Then make ide_hwif_t.autotune a single bit flag
and remove no longer needed IDE_TUNE_* defines.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove obsoleted "idex=" kernel parameters.
* Make probe_* and cmd640_vlb variables static.
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove obsoleted "idex=reset" kernel parameter
(it has been obsoleted since 1 Nov 2004).
Then remove corresponding code from ide_probe_port()
and no longer used ->reset field from ide_hwif_t.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove obsoleted "idex=serialize" kernel parameter
(it has been obsoleted since 1 Nov 2004).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Add "ignore_cable" parameter:
* "ide_core.ignore_cable=[interface_number]" boot option if IDE is built-in
(i.e. "ide_core.ignore_cable=1" to force ignoring cable for "ide1")
* "ignore_cable=[interface_number]" module parameter (for ide_core module)
if IDE is compiled as module
v2:
* Add ide_port_apply_params() helper
- use it in ide_device_add_all() and ide_scan_port().
* Make it possible to later disable ignoring cable detection by passing
"[interface_number]:0" to /sys/module/ide_core/parameters/ignore_cable
(however sysfs interface is not enabled yet since it needs some other
IDE changes to make it work reliable).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Fallout from commit ac95beedf8bc97b24f9540d4da9952f07221c023
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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