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  1. 20 9月, 2017 12 次提交
  3. 19 9月, 2017 28 次提交
    • P
      Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging · 7ec6a364
      由 Peter Maydell 提交于 
      * warning improvements (Alistair)
* KVM code cleanup (David)
* scsi-block support for rerror/werror (Fam)
* support for >64 vCPUs in Windows (Gonglei)
* SCSI fix (Hannes)
* SSE bugfixes (Joseph)
* SmartOS compilation fixes (Kamil)
* Hyper-V frequency MSR support (Ladi)
* move more files to accel/tcg (Philippe, Thomas)
* multiboot validation (PJP)
* virtqueue size configuration for virtio-scsi (Richard)
* Hyper-V header cleanup (Roman)
* Maintainer email update (Guangrong)
* checkpatch.pl --branch (Daniel), fixes (Greg)
* introducing scsi/ (me)

# gpg: Signature made Tue 19 Sep 2017 15:21:26 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: (51 commits)
  docker: fix creation of archives
  default-configs: Replace $(and ...) with $(call land, ...)
  osdep.h: Prohibit disabling assert() in supported builds
  checkpatch: add hwaddr to @typeList
  accel/hax: move hax-stub.c to accel/stubs/
  target/i386: fix "info mem" for LA57 mode
  scripts: let checkpatch.pl process an entire GIT branch
  update-linux-headers: prepare for hyperv.h removal
  hyperv: add header with protocol definitions
  i386/cpu/hyperv: support over 64 vcpus for windows guests
  Convert remaining single line fprintf() to warn_report()
  Makefile: Remove libqemustub.a
  ptimer-test: do not link to libqemustub.a/libqemuutil.a
  target/mips: Convert VM clock update prints to warn_report
  General warn report fixups
  Convert multi-line fprintf() to warn_report()
  Convert single line fprintf(.../n) to warn_report()
  Convert remaining error_report() to warn_report()
  hw/i386: Improve some of the warning messages
  test-qga: add missing qemu-ga tool dependency
  ...
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
      7ec6a364
    • P
      docker: fix creation of archives · 7437866b
      由 Paolo Bonzini 提交于 
      The pixman submodule does not exist anymore, and its removal broke
docker-based tests.  Fix it.

Cc: Fam Zheng <famz@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      7437866b
    • T
      default-configs: Replace $(and ...) with $(call land, ...) · d321e6d5
      由 Thomas Huth 提交于 
      Using $(and ...) is dangerous here: It only works as long as the first
argument is set to 'y' or completely unset. It does not work if the
first argument is set to 'n' for example. Let's use the "land" make
function instead which has been written explicitely for this purpose.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Message-Id: <1505759538-15365-1-git-send-email-thuth@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      d321e6d5
    • E
      osdep.h: Prohibit disabling assert() in supported builds · 262a69f4
      由 Eric Blake 提交于 
      We already have several files that knowingly require assert()
to work, sometimes because refactoring the code for proper
error handling has not been tackled yet; there are probably
other files that have a similar situation but with no comments
documenting the same.  In fact, we have places in migration
that handle untrusted input with assertions, where disabling
the assertions risks a worse security hole than the current
behavior of losing the guest to SIGABRT when migration fails
because of the assertion.  Promote our current per-file
safety-valve to instead be project-wide, and expand it to also
cover glib's g_assert().

Note that we do NOT want to encourage 'assert(side-effects);'
(that is a bad practice that prevents copy-and-paste of code to
other projects that CAN disable assertions; plus it costs
unnecessary reviewer mental cycles to remember whether a project
special-cases the crippling of asserts); and we would LIKE to
fix migration to not rely on asserts (but that takes a big code
audit).  But in the meantime, we DO want to send a message
that anyone that disables assertions has to tweak code in order
to compile, making it obvious that they are taking on additional
risk that we are not going to support.  At the same time, leave
comments mentioning NDEBUG in files that we know still need to
be scrubbed, so there is at least something to grep for.

It would be possible to come up with some other mechanism for
doing runtime checking by default, but which does not abort
the program on failure, while leaving side effects in place
(unlike how crippling assert() avoids even the side effects),
perhaps under the name q_verify(); but it was not deemed worth
the effort (developers should not have to learn a replacement
when the standard C macro works just fine, and it would be a lot
of churn for little gain).  The patch specifically uses #error
rather than #warn so that a user is forced to tweak the header
to acknowledge the issue, even when not using a -Werror
compilation.
Signed-off-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>

Message-Id: <20170911211320.25385-1-eblake@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      262a69f4
    • G
      checkpatch: add hwaddr to @typeList · 825bfa00
      由 Greg Kurz 提交于 
      The script doesn't know about all possible types and learn them as
it parses the code. If it reaches a line with a type cast but the
type isn't known yet, it is misinterpreted as an identifier.

For example the following line:

    foo = (hwaddr) -1;

results in the following false-positive to be reported:

ERROR: spaces required around that '-' (ctx:VxV)

Let's add this standard QEMU type to the list of pre-known types.
Signed-off-by: NGreg Kurz <groug@kaod.org>
Message-Id: <150538015789.8149.10902725348939486674.stgit@bahia.lan>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      825bfa00
    • P
      accel/hax: move hax-stub.c to accel/stubs/ · 4c44a007
      由 Philippe Mathieu-Daudé 提交于 
      Suggested-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170913221149.30382-1-f4bug@amsat.org>
Reviewed-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
      4c44a007
    • P
      target/i386: fix "info mem" for LA57 mode · 128b52e8
      由 Paolo Bonzini 提交于 
      Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      128b52e8
    • D
      scripts: let checkpatch.pl process an entire GIT branch · 8e1fe175
      由 Daniel P. Berrange 提交于 
      Currently before submitting a series, devs should run checkpatch.pl
across each patch to be submitted. This can be automated using a
command such as:

  git rebase -i master -x 'git show | ./scripts/checkpatch.pl -'

This is rather long winded to type, so this patch introduces a way
to tell checkpatch.pl to validate a series of GIT revisions.

There are now three modes it can operate in 1) check a patch 2) check a source
file, or 3) check a git branch.

If no flags are given, the mode is determined by checking the args passed to
the command. If the args contain a literal ".." it is treated as a GIT revision
list. If the args end in ".patch" or equal "-" it is treated as a patch file.
Otherwise it is treated as a source file.

This automatic guessing can be overridden using --[no-]patch --[no-]file or
--[no-]branch

For example to check a GIT revision list:

    $ ./scripts/checkpatch.pl master..
    total: 0 errors, 0 warnings, 297 lines checked

    b886d352a2bf58f0996471fb3991a138373a2957 has no obvious style problems and is ready for submission.
    total: 0 errors, 0 warnings, 182 lines checked

    2a731f9a9ce145e0e0df6d42dd2a3ce4dfc543fa has no obvious style problems and is ready for submission.
    total: 0 errors, 0 warnings, 102 lines checked

    11844169bcc0c8ed4449eb3744a69877ed329dd7 has no obvious style problems and is ready for submission.

If a genuine patch filename contains the characters '..' it is
possible to force interpretation of the arg as a patch

  $ ./scripts/checkpatch.pl --patch master..

will force it to load a patch file called "master..", or equivalently

  $ ./scripts/checkpatch.pl --no-branch master..

will simply turn off guessing of GIT revision lists.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-Id: <20170913091000.9005-1-berrange@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      8e1fe175
    • R
      update-linux-headers: prepare for hyperv.h removal · 40bf8e9a
      由 Roman Kagan 提交于 
      All definitions related to Hyper-V emulation are now taken from the QEMU
own header, so the one imported from the kernel is no longer needed.

Unfortunately it's included by kvm_para.h.

So, until this is fixed in the kernel, teach the header harvesting
script to substitute kernel's hyperv.h with a dummy.
Signed-off-by: NRoman Kagan <rkagan@virtuozzo.com>
Message-Id: <20170713201522.13765-3-rkagan@virtuozzo.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      40bf8e9a
    • R
      hyperv: add header with protocol definitions · 5e953812
      由 Roman Kagan 提交于 
      The definitions for Hyper-V emulation are currently taken from a header
imported from the Linux kernel.

However, as these describe a third-party protocol rather than a kernel
API, it probably wasn't a good idea to publish it in the kernel uapi.

This patch introduces a header that provides all the necessary
definitions, superseding the one coming from the kernel.

The new header supports (temporary) coexistence with the kernel one.
The constants explicitly named in the Hyper-V specification (e.g. msr
numbers) are defined in a non-conflicting way.  Other constants and
types have got new names.

While at this, the protocol data structures are defined in a more
conventional way, without bitfields, enums, and excessive unions.

The code using this stuff is adjusted, too; it can now be built both
with and without the kernel header in the tree.
Signed-off-by: NRoman Kagan <rkagan@virtuozzo.com>
Message-Id: <20170713201522.13765-2-rkagan@virtuozzo.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      5e953812
    • G
      i386/cpu/hyperv: support over 64 vcpus for windows guests · 6c69dfb6
      由 Gonglei 提交于 
      Starting with Windows Server 2012 and Windows 8, if
CPUID.40000005.EAX contains a value of -1, Windows assumes specific
limit to the number of VPs. In this case, Windows Server 2012
guest VMs may use more than 64 VPs, up to the maximum supported
number of processors applicable to the specific Windows
version being used.

https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs

For compatibility, Let's introduce a new property for X86CPU,
named "x-hv-max-vps" as Eduardo's suggestion, and set it
to 0x40 before machine 2.10.

(The "x-" prefix indicates that the property is not supposed to
be a stable user interface.)
Signed-off-by: NGonglei <arei.gonglei@huawei.com>
Message-Id: <1505143227-14324-1-git-send-email-arei.gonglei@huawei.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      6c69dfb6
    • A
      Convert remaining single line fprintf() to warn_report() · 05cb8ed5
      由 Alistair Francis 提交于 
      Convert any remaining uses of fprintf(stderr, "warning:"...
to use warn_report() instead. This helps standardise on a single
method of printing warnings to the user.

All of the warnings were changed using this command:
  find ./* -type f -exec sed -i 's|fprintf(.*".*warning[,:] |warn_report("|Ig' {} +

The #include lines and chagnes to the test Makefile were manually
updated to allow the code to compile.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Message-Id: <2c94ac3bb116cc6b8ebbcd66a254920a69665515.1503077821.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      05cb8ed5
    • P
      Makefile: Remove libqemustub.a · ebedb37c
      由 Paolo Bonzini 提交于 
      Using two libraries (libqemuutil.a and libqemustub.a) would sometimes
result in circular dependencies. To avoid these issues let's just
combine both into a single library that functions as both.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Message-Id: <54e6458745493d10901964624479a7d9a872f481.1503077821.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      ebedb37c
    • P
      ptimer-test: do not link to libqemustub.a/libqemuutil.a · 9ee24e98
      由 Paolo Bonzini 提交于 
      This test provides its own mocks, so do not use the "standard"
stubs in libqemustub.a or the event loop implementation in
libqemuutil.a.

This is required on OS X, which otherwise brings in qemu-timer.o,
async.o and main-loop.o from libqemuutil.a.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      9ee24e98
    • A
      target/mips: Convert VM clock update prints to warn_report · 288cb949
      由 Alistair Francis 提交于 
      Convert the fprintf() messages in kvm_mips_update_state() to use
warn_report() as they aren't errors, but are just warnings.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Cc: James Hogan <james.hogan@imgtec.com>
Message-Id: <e6acff8db6d264f913a18c86858b9aa600554e51.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      288cb949
    • A
      General warn report fixups · b62e39b4
      由 Alistair Francis 提交于 
      Tidy up some of the warn_report() messages after having converted them
to use warn_report().
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <9cb1d23551898c9c9a5f84da6773e99871285120.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      b62e39b4
    • A
      Convert multi-line fprintf() to warn_report() · 8297be80
      由 Alistair Francis 提交于 
      Convert all the multi-line uses of fprintf(stderr, "warning:"..."\n"...
to use warn_report() instead. This helps standardise on a single
method of printing warnings to the user.

All of the warnings were changed using these commands:
  find ./* -type f -exec sed -i \
    'N; {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N; {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N;N; {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N;N;N {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N;N;N;N {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N;N;N;N;N {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +
  find ./* -type f -exec sed -i \
    'N;N;N;N;N;N;N; {s|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig}' \
    {} +

Indentation fixed up manually afterwards.

Some of the lines were manually edited to reduce the line length to below
80 charecters. Some of the lines with newlines in the middle of the
string were also manually edit to avoid checkpatch errrors.

The #include lines were manually updated to allow the code to compile.

Several of the warning messages can be improved after this patch, to
keep this patch mechanical this has been moved into a later patch.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Jason Wang <jasowang@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: NCornelia Huck <cohuck@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <5def63849ca8f551630c6f2b45bcb1c482f765a6.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      8297be80
    • A
      Convert single line fprintf(.../n) to warn_report() · 2ab4b135
      由 Alistair Francis 提交于 
      Convert all the single line uses of fprintf(stderr, "warning:"..."\n"...
to use warn_report() instead. This helps standardise on a single
method of printing warnings to the user.

All of the warnings were changed using this command:
  find ./* -type f -exec sed -i \
    's|fprintf(.*".*warning[,:] \(.*\)\\n"\(.*\));|warn_report("\1"\2);|Ig' \
    {} +

Some of the lines were manually edited to reduce the line length to below
80 charecters.

The #include lines were manually updated to allow the code to compile.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Yongbok Kim <yongbok.kim@imgtec.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com> [mips]
Message-Id: <ae8f8a7f0a88ded61743dff2adade21f8122a9e7.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      2ab4b135
    • A
      Convert remaining error_report() to warn_report() · 55d527a9
      由 Alistair Francis 提交于 
      In a previous patch (3dc6f869) we
converted uses of error_report("warning:"... to use warn_report()
instead. This was to help standardise on a single method of printing
warnings to the user.

There appears to have been some cases that slipped through in patch sets
applied around the same time, this patch catches the few remaining
cases.

All of the warnings were changed using this command:
  find ./* -type f -exec sed -i \
    's|error_report(".*warning[,:] |warn_report("|Ig' {} +

Indentation fixed up manually afterwards.

Two messages were manually fixed up as well.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: NCornelia Huck <cohuck@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <eec8cba0d5434bd828639e5e45f12182490ff47d.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      55d527a9
    • A
      hw/i386: Improve some of the warning messages · 9e5d2c52
      由 Alistair Francis 提交于 
      Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Suggested-by: NEduardo Habkost <ehabkost@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1d6ef2ccd9667878ed5820fcf17eef35957ea5d8.1505158760.git.alistair.francis@xilinx.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      9e5d2c52
    • P
      test-qga: add missing qemu-ga tool dependency · 4be75077
      由 Philippe Mathieu-Daudé 提交于 
      this fixes running 'make check-unit' without running 'make all' beforehand:

$ make check-unit
  ...
  GTESTER tests/test-qga
**
ERROR:tests/test-qga.c:73:fixture_setup: assertion failed (error == NULL): Failed to execute child process "/build/qemu/qemu-ga" (No such file or directory) (g-exec-error-quark, 8)
make: *** [check-tests/test-qga] Error 1
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170911210129.5874-1-f4bug@amsat.org>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      4be75077
    • D
      kvm: kvm_log_sync() is only called with known memory sections · 67548f09
      由 David Hildenbrand 提交于 
      Flatview will make sure that we can only end up in this function with
memory sections that correspond to exactly one slot. So we don't
have to iterate multiple times. There won't be overlapping slots but
only matching slots.

Properly align the section and look up the corresponding slot. This
heavily simplifies this function.

We can now get rid of kvm_lookup_overlapping_slot().
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-7-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      67548f09
    • D
      kvm: kvm_log_start/stop are only called with known sections · 343562e8
      由 David Hildenbrand 提交于 
      Let's properly align the sections first and bail out if we would ever
get called with a memory section we don't know yet.
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-6-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      343562e8
    • D
      kvm: we never have overlapping slots in kvm_set_phys_mem() · f357f564
      由 David Hildenbrand 提交于 
      The way flatview handles memory sections, we will never have overlapping
memory sections in kvm.

address_space_update_topology_pass() will make sure that we will only
get called for

a) an existing memory section for which we only update parameters
(log_start, log_stop).
b) an existing memory section we want to delete (region_del)
c) a brand new memory section we want to add (region_add)

We cannot have overlapping memory sections in kvm as we will first remove
the overlapping sections and then add the ones without conflicts.

Therefore we can remove the complexity for handling prefix and suffix
slots.
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-5-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      f357f564
    • D
      kvm: use start + size for memory ranges · 2747e716
      由 David Hildenbrand 提交于 
      Convert kvm_lookup_matching_slot().
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-4-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      2747e716
    • D
      kvm: factor out alignment of memory section · 5ea69c2e
      由 David Hildenbrand 提交于 
      Factor it out, so we can reuse it later.
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-3-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      5ea69c2e
    • D
      kvm: require JOIN_MEMORY_REGIONS_WORKS · 89de4b91
      由 David Hildenbrand 提交于 
      We already require DESTROY_MEMORY_REGION_WORKS, JOIN_MEMORY_REGIONS_WORKS
was added just half a year later.

In addition, with flatview overlapping memory regions are first
removed before adding the changed one. So we can't really detect joining
memory regions this way.

Let's just get rid of this special handling.
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20170911174933.20789-2-david@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      89de4b91
    • P
      multiboot: validate multiboot header address values · ed4f86e8
      由 Prasad J Pandit 提交于 
      While loading kernel via multiboot-v1 image, (flags & 0x00010000)
indicates that multiboot header contains valid addresses to load
the kernel image. These addresses are used to compute kernel
size and kernel text offset in the OS image. Validate these
address values to avoid an OOB access issue.

This is CVE-2017-14167.
Reported-by: NThomas Garnier <thgarnie@google.com>
Signed-off-by: NPrasad J Pandit <pjp@fedoraproject.org>
Message-Id: <20170907063256.7418-1-ppandit@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      ed4f86e8