Commit Graph

47182 Commits

Author SHA1 Message Date
Greg Kurz
8d85a22aab 9p: don't include <sys/uio.h>
The <sys/uio.h> system header doesn't exist on all host platforms. Code
should include "qemu/osdep.h" instead to avoid build breaks on plafforms
that don't define CONFIG_IOVEC (like win32, if it is to support 9p one day).

Acked-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Michael Fritscher <michael@fritscher.net>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
2016-07-01 14:38:54 +02:00
Peter Maydell
1b756f1abf ppc patch queue 2016-07-01
Here's the current ppc patch queue.  This is a fairly large batch,
 containing:
     * A number of further preliminary patches towards full hypervisor
       mode emulation
     * Some further fixes / cleanups for the recently merged device_add
       based CPU hotplug
     * Preliminary patches towards supporting a native (rather than
       paravirtualized) XICS device.  This will be needed to emulate a
       physical Power machine, including hypervisor capabilities
     * Assorted bug fixes
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.7-20160701' into staging

ppc patch queue 2016-07-01

Here's the current ppc patch queue.  This is a fairly large batch,
containing:
    * A number of further preliminary patches towards full hypervisor
      mode emulation
    * Some further fixes / cleanups for the recently merged device_add
      based CPU hotplug
    * Preliminary patches towards supporting a native (rather than
      paravirtualized) XICS device.  This will be needed to emulate a
      physical Power machine, including hypervisor capabilities
    * Assorted bug fixes

# gpg: Signature made Fri 01 Jul 2016 06:56:35 BST
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.7-20160701: (23 commits)
  qmp: fix spapr example of query-hotpluggable-cpus
  spapr: drop duplicate variable in spapr_core_release()
  spapr: do proper error propagation in spapr_cpu_core_realize_child()
  spapr: drop reference on child object during core realization
  spapr: Restore support for 970MP and POWER8NVL CPU cores
  target-ppc: gen_pause for instructions: yield, mdoio, mdoom, miso
  ppc/xics: Replace "icp" with "xics" in most places
  ppc/xics: Implement H_IPOLL using an accessor
  ppc/xics: Move SPAPR specific code to a separate file
  ppc/xics: Rename existing xics to xics_spapr
  ppc: Fix 64K pages support in full emulation
  target-ppc: Eliminate redundant and incorrect function booke206_page_size_to_tlb
  spapr: Restore support for older PowerPC CPU cores
  spapr: fix write-past-end-of-array error in cpu core device init code
  hw/ppc/spapr: Add some missing hcall function set strings
  ppc: Print HSRR0/HSRR1 in "info registers"
  ppc: LPCR is a HV resource
  ppc: Initial HDEC support
  ppc: Enforce setting MSR:EE,IR and DR when MSR:PR is set
  ppc: Fix conditions for delivering external interrupts to a guest
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-01 13:31:48 +01:00
Gerd Hoffmann
8df42d855c build: add pc-bios to config-host.mak deps
... so configure re-runs on pc-bios updates such as new pxe roms.
Needed because configure symlinks the prebuilt roms from src
into build tree.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-07-01 13:31:44 +02:00
Gerd Hoffmann
45027808cd ipxe: add new roms to BLOBS
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-07-01 13:26:57 +02:00
Peter Maydell
94e31093ff VFIO updates 2016-06-30
- Fix VGA quirks (stable 2.6) (Alex Williamson)
  - Registering PCIe extended capabilities (Chen Fan)
  - Hide read-only SR-IOV capability from VM (Alex Williamson)
  - MemoryRegionIOMMUOps.notify_started/stopped (Alexey Kardashevskiy)
  - hw_error on intel_iommu notify_started  (Alex Williamson)
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 Version: GnuPG v2.0.14 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20160630.0' into staging

VFIO updates 2016-06-30

 - Fix VGA quirks (stable 2.6) (Alex Williamson)
 - Registering PCIe extended capabilities (Chen Fan)
 - Hide read-only SR-IOV capability from VM (Alex Williamson)
 - MemoryRegionIOMMUOps.notify_started/stopped (Alexey Kardashevskiy)
 - hw_error on intel_iommu notify_started  (Alex Williamson)

# gpg: Signature made Thu 30 Jun 2016 20:45:55 BST
# gpg:                using RSA key 0x239B9B6E3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"
# Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B  8A90 239B 9B6E 3BB0 8B22

* remotes/awilliam/tags/vfio-update-20160630.0:
  intel_iommu: Throw hw_error on notify_started
  memory: Add MemoryRegionIOMMUOps.notify_started/stopped callbacks
  vfio/pci: Hide SR-IOV capability
  vfio: add pcie extended capability support
  vfio/pci: Fix VGA quirks

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-01 11:52:14 +01:00
Peter Maydell
1fb4c13e4f QAPI patches 2016-06-30
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-06-30' into staging

QAPI patches 2016-06-30

# gpg: Signature made Thu 30 Jun 2016 14:29:43 BST
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2016-06-30:
  qapi: Fix memleak in string visitors on int lists
  qapi: Simplify use of range.h
  range: Create range.c for code that should not be inline
  qapi: Fix crash on missing alternate member of QAPI struct
  checkpatch: There is no qemu_strtod()
  qobject: Correct JSON lexer grammar comments
  json-streamer: Don't leak tokens on incomplete parse

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-07-01 11:18:01 +01:00
Igor Mammedov
13f5e8003e qmp: fix spapr example of query-hotpluggable-cpus
27393c33 qapi: keep names in 'CpuInstanceProperties' in sync with struct CPUCore
added -id suffix to property names but forgot to fix example in qmp-commands.hx

Fix example to have 'core-id' instead of 'core' to match current code

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Greg Kurz
8a1eb71bd8 spapr: drop duplicate variable in spapr_core_release()
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Greg Kurz
f11235b920 spapr: do proper error propagation in spapr_cpu_core_realize_child()
This patch changes spapr_cpu_core_realize_child() to have a local error
pointer and use error_propagate() as it is supposed to be done.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Greg Kurz
8e758dee66 spapr: drop reference on child object during core realization
When a core is being realized, we create a child object for each thread
of the core.

The child is first initialized with object_initialize() which sets its ref
count to 1, and then added to the core with object_property_add_child()
which bumps the ref count to 2.

When the core gets released, object_unparent() decreases the ref count to 1,
and we g_free() the object: we hence loose the reference on an unfinalized
object. This is likely to cause random crashes.

Let's drop the extra reference as soon as we don't need it, after the
thread is added to the core.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Bharata B Rao
470f215787 spapr: Restore support for 970MP and POWER8NVL CPU cores
Introduction of core based CPU hotplug for PowerPC sPAPR didn't
add support for 970MP and POWER8NVL based core types. Add support for
the same.

While we are here, add support for explicit specification of POWER5+_v2.1
core type.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Aaron Larson
9e196938aa target-ppc: gen_pause for instructions: yield, mdoio, mdoom, miso
Call gen_pause for all "or rx,rx,rx" encodings other nop.  This
provides a reasonable implementation for yield, and a better
approximation for mdoio, mdoom, and miso.  The choice to pause for all
encodings !=0 leverages the PowerISA admonition that the reserved
encodings might change program priority, providing a slight "future
proofing".

Signed-off-by: Aaron Larson <alarson@ddci.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Benjamin Herrenschmidt
27f2458245 ppc/xics: Replace "icp" with "xics" in most places
The "ICP" is a different object than the "XICS". For historical reasons,
we have a number of places where we name a variable "icp" while it contains
a XICSState pointer. There *is* an ICPState structure too so this makes
the code really confusing.

This is a mechanical replacement of all those instances to use the name
"xics" instead. There should be no functional change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[spapr_cpu_init has been moved to spapr_cpu_core.c, change there]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Benjamin Herrenschmidt
1cbd222055 ppc/xics: Implement H_IPOLL using an accessor
None of the other presenter functions directly mucks with the
internal state, so don't do it there either.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:47 +10:00
Benjamin Herrenschmidt
9c7027ba94 ppc/xics: Move SPAPR specific code to a separate file
Leave the core ICP/ICS logic in xics.c and move the top level
class wrapper, hypercall and RTAS handlers to xics_spapr.c

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[add cpu.h in xics_spapr.c, move set_nr_irqs and set_nr_servers to
 xics_spapr.c]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:46 +10:00
Benjamin Herrenschmidt
161deaf225 ppc/xics: Rename existing xics to xics_spapr
The common class doesn't change, the KVM one is sPAPR specific. Rename
variables and functions to xics_spapr.

Retain the type name as "xics" to preserve migration for existing sPAPR
guests.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 13:41:46 +10:00
Benjamin Herrenschmidt
4322e8ced5 ppc: Fix 64K pages support in full emulation
We were always advertising only 4K & 16M. Additionally the code wasn't
properly matching the page size with the PTE content, which meant we
could potentially hit an incorrect PTE if the guest used multiple sizes.

Finally, honor the CPU capabilities when decoding the size from the SLB
so we don't try to use 64K pages on 970.

This still doesn't add support for MPSS (Multiple Page Sizes per Segment)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors
      commits 61a36c9b5a and 1114e712c9 reworked the hpte code
      doing insertion/removal in hw/ppc/spapr_hcall.c. The hunks
      modifying these areas were removed. ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Aaron Larson
a36848ff7c target-ppc: Eliminate redundant and incorrect function booke206_page_size_to_tlb
Eliminate redundant and incorrect booke206_page_size_to_tlb function
from ppce500_spin.c in preference to previously existing but newly
exported definition from e500.c

Defect analysis:

The booke206_page_size_to_tlb function in e500.c was updated in commit
2bd9543 "ppc: booke206: use MAV=2.0 TSIZE definition, fix 4G pages" to
reflect a change in the definition of MAS1_TSIZE_SHIFT from 8
(corresponding to a min TLB page size of 4kb) to a value of 7 (TLB
page size 2k).  The booke206_page_size_to_tlb() function defined in
ppce500_spin.c was never updated to reflect the change in
MAS1_TSIZE_SHIFT.

In http://lists.nongnu.org/archive/html/qemu-ppc/2016-06/msg00533.html,
Scott Wood suggested this "root cause" explanation:

SW> The patch that changed MAS1_TSIZE_SHIFT from 8 to 7 was around the
SW> same time as the patch that added this code, which is probably why
SW> adjusting it got missed.  Commit 2bd9543cd3 did update the
SW> equivalent code in ppce500_mpc8544ds.c, which now resides in
SW> hw/ppc/e500.c and has been changed to not assume a power-of-2
SW> size.  The ppce500_spin version should be eliminated.

Signed-off-by: Aaron Larson <alarson@ddci.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Bharata B Rao
ff461b8da9 spapr: Restore support for older PowerPC CPU cores
Introduction of core based CPU hotplug for PowerPC sPAPR didn't
add support for 970 and POWER5+ based core types. Add support for
the same.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Greg Kurz
dde35bc966 spapr: fix write-past-end-of-array error in cpu core device init code
This fixes a potential QEMU crash introduced by commit 3b54254966.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Thomas Huth
6cc09e261b hw/ppc/spapr: Add some missing hcall function set strings
Add "hcall-sprg0" (for H_SET_SPRG0), "hcall-copy" (for H_PAGE_INIT)
and "hcall-debug" (for H_LOGICAL_CI_LOAD/STORE) to the property
"ibm,hypertas-functions" to indicate that we support these hypercalls.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
f2b70fded9 ppc: Print HSRR0/HSRR1 in "info registers"
They are generally useful when debugging HV mode stuff

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
635dff20a3 ppc: LPCR is a HV resource
Don't allow access in guest mode

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
4b236b621b ppc: Initial HDEC support
The current behaviour isn't completely right, as for the DEC, we
don't properly re-arm when wrapping around, but I will fix this
in a separate patch.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
b378bb0948 ppc: Enforce setting MSR:EE,IR and DR when MSR:PR is set
The architecture specifies that any instruction that sets MSR:PR will also
set MSR:EE, IR and DR.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
d1dbe37c1e ppc: Fix conditions for delivering external interrupts to a guest
External interrupts can bypass the MSR_EE test if they occur in guest
mode and LPES0 is clear. In that case they are directed to the hypervisor

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
4b3fc37788 ppc: Use a helper to filter writes to LPCR
This handles filtering bits based on what is implemented by a
given architecture version. We also use it to copy to LPCR
some of the relevant 970 HID4 bits.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
88536935c0 ppc: Update LPCR definitions
Includes all the bits up to ISA 2.07

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Benjamin Herrenschmidt
8eeb330c69 ppc: Add a bunch of hypervisor SPRs to Book3s
We don't give them a KVM reg number yet as no current KVM version
supports HV mode.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: SPRs AMOR,DAWR,DARWX were already included in commit f401dd32cb]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-07-01 09:57:01 +10:00
Alex Williamson
3cb3b1549f intel_iommu: Throw hw_error on notify_started
We don't currently support the MemoryRegionIOMMUOps notifier, so throw
an error should a device require it.

Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Peter Xu <peterx@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-06-30 13:00:24 -06:00
Alexey Kardashevskiy
d22d8956b1 memory: Add MemoryRegionIOMMUOps.notify_started/stopped callbacks
The IOMMU driver may change behavior depending on whether a notifier
client is present.  In the case of POWER, this represents a change in
the visibility of the IOTLB, for other drivers such as intel-iommu and
future AMD-Vi emulation, notifier support is not yet enabled and this
provides the opportunity to flag that incompatibility.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Peter Xu <peterx@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
[new log & extracted from [PATCH qemu v17 12/12] spapr_iommu, vfio, memory: Notify IOMMU about starting/stopping listening]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-06-30 13:00:23 -06:00
Alex Williamson
e37dac06dc vfio/pci: Hide SR-IOV capability
The kernel currently exposes the SR-IOV capability as read-only
through vfio-pci.  This is sufficient to protect the host kernel, but
has the potential to confuse guests without further virtualization.
In particular, OVMF tries to size the VF BARs and comes up with absurd
results, ending with an assert.  There's not much point in adding
virtualization to a read-only capability, so we simply hide it for
now.  If the kernel ever enables SR-IOV virtualization, we should
easily be able to test it through VF BAR sizing or explicit flags.

Testing whether we should parse extended capabilities is also pulled
into the function to keep these assumptions in one place.

Tested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-06-30 13:00:23 -06:00
Chen Fan
325ae8d548 vfio: add pcie extended capability support
For vfio pcie device, we could expose the extended capability on
PCIE bus. due to add a new pcie capability at the tail of the chain,
in order to avoid config space overwritten, we introduce a copy config
for parsing extended caps. and rebuild the pcie extended config space.

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-06-30 13:00:23 -06:00
Alex Williamson
4d3fc4fdc6 vfio/pci: Fix VGA quirks
Commit 2d82f8a3cd ("vfio/pci: Convert all MemoryRegion to dynamic
alloc and consistent functions") converted VFIOPCIDevice.vga to be
dynamically allocted, negating the need for VFIOPCIDevice.has_vga.
Unfortunately not all of the has_vga users were converted, nor was
the field removed from the structure.  Correct these oversights.

Reported-by: Peter Maloney <peter.maloney@brockmann-consult.de>
Tested-by: Peter Maloney <peter.maloney@brockmann-consult.de>
Fixes: 2d82f8a3cd ("vfio/pci: Convert all MemoryRegion to dynamic alloc and consistent functions")
Fixes: https://bugs.launchpad.net/qemu/+bug/1591628
Cc: qemu-stable@nongnu.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2016-06-30 13:00:22 -06:00
Peter Maydell
ddf31aa853 linux-user: Fix compilation when F_SETPIPE_SZ isn't defined
Older kernels don't have F_SETPIPE_SZ and F_GETPIPE_SZ (in
particular RHEL6's system headers don't define these). Add
ifdefs so that we can gracefully fall back to not supporting
those guest ioctls rather than failing to build.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 1467304429-21470-1-git-send-email-peter.maydell@linaro.org
2016-06-30 19:27:51 +01:00
Paolo Bonzini
8a0b4de048 pcspk: fix KVM
The link property that was added to the pcspk device has the wrong type:
it is only correct for TCG and for KVM's userspace or split irqchip
options.  The default KVM option (fully in-kernel irqchip) breaks
because it uses a PIT whose type is a sibling of TYPE_I8254.

Fixes: 873b4d3f05
Tested-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1467298657-6588-1-git-send-email-pbonzini@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-30 19:00:02 +01:00
Eric Blake
db486cc334 qapi: Fix memleak in string visitors on int lists
Commit 7f8f9ef1 introduced the ability to store a list of
integers as a sorted list of ranges, but when merging ranges,
it leaks one or more ranges.  It was also using range_get_last()
incorrectly within range_compare() (a range is a start/end pair,
but range_get_last() is for start/len pairs), and will also
mishandle a range ending in UINT64_MAX (remember, we document
that no range covers 2**64 bytes, but that ranges that end on
UINT64_MAX have end < begin).

The whole merge algorithm was rather complex, and included
unnecessary passes over data within glib functions, and enough
indirection to make it hard to easily plug the data leaks.
Since we are already hard-coding things to a list of ranges,
just rewrite the thing to open-code the traversal and
comparisons, by making the range_compare() helper function give
us an answer that is easier to use, at which point we avoid the
need to pass any callbacks to g_list_*(). Then by reusing
range_extend() instead of duplicating effort with range_merge(),
we cover the corner cases correctly.

Drop the now-unused range_merge() and ranges_can_merge().

Doing this lets test-string-{input,output}-visitor pass under
valgrind without leaks.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1464712890-14262-4-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Comment hoisted out of loop]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:28:54 +02:00
Eric Blake
7c47959d0c qapi: Simplify use of range.h
Calling our function g_list_insert_sorted_merged is a misnomer,
since we are NOT writing a glib function.  Furthermore, we are
making every caller pass the same comparator function of
range_merge(): any caller that would try otherwise would break
in weird ways since our internal call to ranges_can_merge() is
hard-coded to operate only on ranges, rather than paying
attention to the caller's comparator.

Better is to fix things so that callers don't have to care about
our internal comparator, by picking a function name and updating
the parameter type away from a gratuitous use of void*, to make
it obvious that we are operating specifically on a list of ranges
and not a generic list.  Plus, refactoring the code here will
make it easier to plug a memory leak in the next patch.

range_compare() is now internal only, and moves to the .c file.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1464712890-14262-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:28:51 +02:00
Eric Blake
fec0fc0a13 range: Create range.c for code that should not be inline
g_list_insert_sorted_merged() is rather large to be an inline
function; move it to its own file.  range_merge() and
ranges_can_merge() can likewise move, as they are only used
internally.  Also, it becomes obvious that the condition within
range_merge() is already satisfied by its caller, and that the
return value is not used.

The diffstat is misleading, because of the copyright boilerplate.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1464712890-14262-2-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:28:40 +02:00
Eric Blake
9b4e38fe6a qapi: Fix crash on missing alternate member of QAPI struct
If a QAPI struct has a mandatory alternate member which is not
present on input, the input visitor reports an error for the
missing alternate without setting the discriminator, but the
cleanup code for the struct still tries to use the dealloc
visitor to clean up the alternate.

Commit dbf11922 changed visit_start_alternate to set *obj to NULL
when an error occurs, where it was previously left untouched.
Thus, before the patch, the dealloc visitor is blindly trying to
cleanup whatever branch corresponds to (*obj)->type == 0 (that is,
QTYPE_NONE, because *obj still pointed to zeroed memory), which
selects the default branch of the switch and sets an error, but
this second error is ignored by the way the dealloc visitor is
used; but after the patch, the attempt to switch dereferences NULL.

When cleaning up after a partial object parse, we specifically
check for !*obj after visit_start_struct() (see gen_visit_object());
doing the same for alternates fixes the crash. Enhance the testsuite
to give coverage for both missing struct and missing alternate
members.

Also add an abort - we expect visit_start_alternate() to either set an
error or to set (*obj)->type to a valid QType that corresponds to
actual user input, and QTYPE_NONE should never be reachable from valid
input.  Had the abort() been in place earlier, we might have noticed
the dealloc visitor dereferencing bogus zeroed memory prior to when
commit dbf11922 forced our hand by setting *obj to NULL and causing a
fault.

Test case:

{'execute':'blockdev-add', 'arguments':{'options':{'driver':'raw'}}}

The choice of 'driver':'raw' selects a BlockdevOptionsGenericFormat
struct, which has a mandatory 'file':'BlockdevRef' in QAPI.  Since
'file' is missing as a sibling of 'driver', this should report a
graceful error rather than fault.  After this patch, we are back to:

{"error": {"class": "GenericError", "desc": "Parameter 'file' is missing"}}

Generated code in qapi-visit.c changes as:

|@@ -2444,6 +2444,9 @@ void visit_type_BlockdevRef(Visitor *v,
|     if (err) {
|         goto out;
|     }
|+    if (!*obj) {
|+        goto out_obj;
|+    }
|     switch ((*obj)->type) {
|     case QTYPE_QDICT:
|         visit_start_struct(v, name, NULL, 0, &err);
|@@ -2459,10 +2462,13 @@ void visit_type_BlockdevRef(Visitor *v,
|     case QTYPE_QSTRING:
|         visit_type_str(v, name, &(*obj)->u.reference, &err);
|         break;
|+    case QTYPE_NONE:
|+        abort();
|     default:
|         error_setg(&err, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
|                    "BlockdevRef");
|     }
|+out_obj:
|     visit_end_alternate(v);

Reported by Kashyap Chamarthy <kchamart@redhat.com>
CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1466012271-5204-1-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:24:36 +02:00
Eric Blake
01fb8e192d checkpatch: There is no qemu_strtod()
Maybe there should be; but until there is, we should not flag
strtod() calls as something to replaced with qemu_strtod().

We also lack qemu_strtof() and qemu_strtold(), but as no one
has been using strtof() or strtold(), it's not worth complicating
the regex for them.

(Ironically, I had to use 'git commit -n' since checkpatch uses
TAB indents, in violation of its own recommendations.)

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465526889-8339-3-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:24:36 +02:00
Eric Blake
ff5394ad5b qobject: Correct JSON lexer grammar comments
Fix the regex comments describing what we parse as JSON.  No change
to the lexer itself, just to the comments:
- The "" and '' string construction was missing alternation between
different escape sequences
- The construction for numbers forgot to handle optional leading '-'
- The construction for numbers was grouped incorrectly so that it
didn't permit '0.1'
- The construction for numbers forgot to mark the exponent as optional
- No mention that our '' string and "\'" are JSON extensions
- No mention of our %d and related extensions when constructing JSON

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465526889-8339-2-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Eric's regexp simplification squashed in]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:24:36 +02:00
Eric Blake
ba4dba5434 json-streamer: Don't leak tokens on incomplete parse
Valgrind complained about a number of leaks in
tests/check-qobject-json:

==12657==    definitely lost: 17,247 bytes in 1,234 blocks

All of which had the same root cause: on an incomplete parse,
we were abandoning the token queue without cleaning up the
allocated data within each queue element.  Introduced in
commit 95385fe, when we switched from QList (which recursively
frees contents) to g_queue (which does not).

We don't yet require glib 2.32 with its g_queue_free_full(),
so open-code it instead.

CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1463608012-12760-1-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-30 15:24:36 +02:00
Markus Armbruster
297e8005f8 MAINTAINERS: Remove Blue Swirl leftovers
Blue hasn't been active in the QEMU project for a long time.  Drop his
last MAINTAINERS entries.

As per Paolo's recommendation, downgrade status of "BSD user" from
Maintained to Orphan since the FreeBSD guys effectively forked it, and
"SPARC target" from Maintained to Odd Fixes, since we still have the
overall TCG maintainer looking after it.

I'm leaving Checkpatch's status at Odd Fixes.  Calling it Maintained
wouldn't be wrong, but I'm not comfortable upgrading it while nobody
is willing to have his name nailed to the thing.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-30 13:34:49 +01:00
Greg Kurz
8c1cd719a5 MAINTAINERS: update email address for Greg Kurz
While here, also add a section for the tree I use for 9p.

Signed-off-by: Greg Kurz <groug@kaod.org>
Acked-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Message-id: 146617410554.7281.1733165006203821878.stgit@bahia.lan
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-30 13:32:15 +01:00
Peter Maydell
1ec20c2a3a * serial port fixes (Paolo)
* Q35 modeling improvements (Paolo, Vasily)
 * chardev cleanup improvements (Marc-André)
 * iscsi bugfix (Peter L.)
 * cpu_exec patch from multi-arch patches (Peter C.)
 * pci-assign tweak (Lin Ma)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* serial port fixes (Paolo)
* Q35 modeling improvements (Paolo, Vasily)
* chardev cleanup improvements (Marc-André)
* iscsi bugfix (Peter L.)
* cpu_exec patch from multi-arch patches (Peter C.)
* pci-assign tweak (Lin Ma)

# gpg: Signature made Wed 29 Jun 2016 15:56:30 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (35 commits)
  socket: unlink unix socket on remove
  socket: add listen feature
  char: clean up remaining chardevs when leaving
  vhost-user: disable chardev handlers on close
  vhost-user-test: fix g_cond_wait_until compat implementation
  vl: smp_parse: fix regression
  ich9: implement SCI_IRQ_SEL register
  ich9: implement ACPI_EN register
  serial: reinstate watch after migration
  serial: remove watch on reset
  char: change qemu_chr_fe_add_watch to return unsigned
  serial: separate serial_xmit and serial_watch_cb
  serial: simplify tsr_retry reset
  serial: make tsr_retry unsigned
  iscsi: fix assertion in is_sector_request_lun_aligned
  target-*: Don't redefine cpu_exec()
  pci-assign: Move "Invalid ROM" error message to pci-assign-load-rom.c
  vnc: generalize "VNC server running on ..." message
  scsi: esp: fix migration
  MC146818 RTC: add GPIO access to output IRQ
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-29 19:14:48 +01:00
Peter Maydell
ef8757f1fe -----BEGIN PGP SIGNATURE-----
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Wed 29 Jun 2016 04:09:26 BST
# gpg:                using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg:                 aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg:                 aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98  D624 BDBE 7B27 C0DE 3057

* remotes/cody/tags/block-pull-request:
  mirror: fix misleading comments
  blockjob: assert(cb) when create job
  iotests: add small-granularity mirror test
  mirror: limit niov to IOV_MAX elements, again
  mirror: clarify mirror_do_read return code
  block/gluster: add support for selecting debug logging level
  mirror: fix trace_mirror_yield_in_flight usage in mirror_iteration()
  block/nfs: add support for libnfs pagecache
  block/nfs: refuse readahead if cache.direct is on
  block/gluster: add support for SEEK_DATA/SEEK_HOLE

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-29 16:08:49 +01:00
Marc-André Lureau
74b6ce43e3 socket: unlink unix socket on remove
qemu leaves unix socket files behind when removing a listening chardev
or leaving. qemu could clean that up, even if doing so isn't race-free.

Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1347077

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1466105332-10285-4-git-send-email-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-29 16:49:41 +02:00
Marc-André Lureau
3fa27a9a1e socket: add listen feature
Add a flag to tell whether the channel socket is listening.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1466105332-10285-3-git-send-email-marcandre.lureau@redhat.com>
Acked-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-06-29 16:49:41 +02:00
Marc-André Lureau
c1111a24a3 char: clean up remaining chardevs when leaving
This helps to remove various chardev resources leaks when leaving qemu.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1466105332-10285-2-git-send-email-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-29 16:49:41 +02:00