Commit Graph

49704 Commits

Author SHA1 Message Date
Gerd Hoffmann
423f7cf233 ipxe: update to 20161108 snapshot
git shortlog 04186319..b991c67c
===============================

Laszlo Ersek (3):
      [efi] Install the HII config access protocol on a child of the SNP handle
      [librm] Conditionalize the workaround for the Tivoli VMM's SSE garbling
      [build] Disable TIVOLI_VMM_WORKAROUND in the qemu configuration

Lukas Grossar (1):
      [intel] Add PCI device ID for I219-V/LM

Michael Brown (57):
      [efi] Fix uninitialised data in HII IFR structures
      [bios] Do not enable interrupts when printing to the console
      [pxe] Disable interrupts on the PIC before starting NBP
      [dhcp] Allow for variable encapsulation of architecture-specific options
      [dhcpv6] Include RFC5970 client architecture options in DHCPv6 requests
      [dhcpv6] Include vendor class identifier option in DHCPv6 requests
      [dhcp] Automatically generate vendor class identifier string
      [xfer] Send intf_close() if redirection fails
      [downloader] Treat redirection failures as fatal
      [iscsi] Treat redirection failures as fatal
      [debug] Allow per-object runtime enabling/disabling of debug messages
      [debug] Allow debug messages to be initially disabled at runtime
      [libc] Allow assertions to be globally enabled or disabled
      [profile] Allow profiling to be globally enabled or disabled
      [rng] Check for functioning RTC interrupt
      [acpi] Add support for ACPI power off
      [acpi] Allow time for ACPI power off to take effect
      [ipv4] Send gratuitous ARPs whenever a new IPv4 address is applied
      [intel] Strip spurious VLAN tags received by virtual function NICs
      [intel] Remove duplicate intelvf_mbox_queues() function
      [ipv6] Perform SLAAC only during autoconfiguration
      [settings] Create space for IPv6 in settings display order
      [ipv6] Rename ipv6_scope to dhcpv6_scope
      [settings] Correctly mortalise autovivified child settings blocks
      [ipv6] Allow settings to comprise arbitrary subsets of NDP options
      [ipv6] Expose IPv6 settings acquired through NDP
      [dhcpv6] Expose IPv6 address setting acquired through DHCPv6
      [ipv6] Expose IPv6 link-local address settings
      [settings] Allow settings blocks to specify a sibling ordering
      [ipv6] Match user expectations for IPv6 settings priorities
      [ipv6] Create routing table based on IPv6 settings
      [ipv6] Rename ipv6_scope to ipv6_settings_scope
      [test] Update IPv6 tests to use okx()
      [ipv6] Allow for multiple routers
      [hyperv] Use instance UUID in device name
      [crypto] Remove obsolete extern declaration for asn1_invalidate_cursor()
      [crypto] Allow for parsing of partial ASN.1 cursors
      [image] Add image_asn1() to extract ASN.1 objects from image
      [crypto] Add DER image format
      [crypto] Add PEM image format
      [image] Use image_asn1() to extract data from CMS signature images
      [build] Remove obsolete explicit object requirements
      [crypto] Enable both DER and PEM formats by default
      [build] Remove more obsolete explicit object requirements
      [pixbuf] Enable PNG format by default
      [crypto] Add image_x509() to extract X.509 certificates from image
      [crypto] Generalise X.509 "valid" field to a "flags" field
      [list] Add list_next_entry() and list_prev_entry()
      [crypto] Expose certstore_del() to explicitly remove stored certificates
      [crypto] Allow certificates to be marked as having been added explicitly
      [crypto] Add certstat() to display basic certificate information
      [cmdline] Add certificate management commands
      [crypto] Mark permanent certificates as permanent
      [efi] Mark AppleNetBoot.h as a native iPXE header
      [efi] Update to current EDK2 headers
      [efi] Add EFI_BLOCK_IO2_PROTOCOL header and GUID definition
      [bzimage] Fix page alignment of initrd images

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-11-10 15:29:43 +00:00
Stefan Hajnoczi
9b4b035026 -----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJYIhapAAoJEJykq7OBq3PIkBoH/jWgy1B9/SblX8Ed1qeA+SCV
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 4uZBfrqJpGfZPRy7S8Qges/2Xk2P6d7bUSfYdRmPnsUA2b5UtgxdRHIMUKtl9C8=
 =sxVN
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'public/tags/tracing-pull-request' into staging

# gpg: Signature made Tue 08 Nov 2016 06:17:13 PM GMT
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* public/tags/tracing-pull-request:
  docs/tracing.txt: Update documentation of default backend

Message-id: 1478629053-31709-1-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-09 12:44:16 +00:00
Stefan Hajnoczi
f70073df4a -----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJYIhWNAAoJEJykq7OBq3PIUA4H/0DNb10Qcx5BnN7aAYwRZ4Rz
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 ruvA25egbuiZdG+dPioa7jYb8j/OYDhfSvYwGjxRVQTngiocabbWPb/DlKOfXrVT
 H+92672TOa+FjU2UomdjOBVZvEUP06sEbIOc4/ciZRVHHK4vhByyt4cRF8k8+qHD
 lAI5D1ai3VWA+H7ykjXO/OD+ygDsZhZBiR6HJXlmHj4wWMs9Y5OUtaProMJ0juY=
 =n9DS
 -----END PGP SIGNATURE-----

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

# gpg: Signature made Tue 08 Nov 2016 06:12:29 PM GMT
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* public/tags/block-pull-request:
  aio-posix: simplify aio_epoll_update
  aio-posix: avoid NULL pointer dereference in aio_epoll_update
  block: Don't mark node clean after failed flush

Message-id: 1478628762-31050-1-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-09 12:43:50 +00:00
Peter Maydell
3b0fc80dd8 docs/tracing.txt: Update documentation of default backend
In commit baf86d6b3c we switched the default trace backend from "nop"
to "log". Update the documentation to match.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1478276837-31780-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-08 18:16:48 +00:00
Paolo Bonzini
35dd66e23c aio-posix: simplify aio_epoll_update
Extract common code out of the "if".

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20161108135524.25927-3-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-08 17:09:14 +00:00
Paolo Bonzini
36173ec5f1 aio-posix: avoid NULL pointer dereference in aio_epoll_update
aio_epoll_update dereferences parameter "node", but it could have been NULL
if deleting an fd handler that was not registered in the first place.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20161108135524.25927-2-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-08 17:09:14 +00:00
Kevin Wolf
e6af1e0854 block: Don't mark node clean after failed flush
Commit 3ff2f67a changed bdrv_co_flush() so that no flush is issues if
the image hasn't been dirtied since the last flush. This is not quite
correct: The condition should be that the image hasn't been dirtied
since the last _successful_ flush. This patch changes the logic
accordingly.

Without this fix, subsequent bdrv_co_flush() calls would return success
without actually doing anything even though the image is still dirty.
The difference is visible in some blkdebug test cases where error
messages incorrectly disappeared after commit 3ff2f67a.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1478300595-10090-1-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-08 16:06:35 +00:00
Stefan Hajnoczi
207faf24c5 target-arm queue:
* bitbang_i2c: Handle NACKs from devices
  * Fix corruption of CPSR when SCTLR.EE is set
  * nvic: set pending status for not active interrupts
  * char: cadence: check baud rate generator and divider values
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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Merge remote-tracking branch 'pm215/tags/pull-target-arm-20161107' into staging

target-arm queue:
 * bitbang_i2c: Handle NACKs from devices
 * Fix corruption of CPSR when SCTLR.EE is set
 * nvic: set pending status for not active interrupts
 * char: cadence: check baud rate generator and divider values

# gpg: Signature made Mon 07 Nov 2016 10:43:07 AM GMT
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* pm215/tags/pull-target-arm-20161107:
  hw/i2c/bitbang_i2c: Handle NACKs from devices
  Fix corruption of CPSR when SCTLR.EE is set
  nvic: set pending status for not active interrupts
  char: cadence: check baud rate generator and divider values

Message-id: 1478515653-6361-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-07 14:02:15 +00:00
Cornelia Huck
0ea3eb65e8 s390x/kvm: fix run_on_cpu sigp conversions
Commit 14e6fe12a ("*_run_on_cpu: introduce run_on_cpu_data type")
attempted to convert all users of run_on_cpu to use the new
run_on_cpu_data type. It missed to change the called sigp_* routines,
however. Fix that.

Fixes: 14e6fe12a ("*_run_on_cpu: introduce run_on_cpu_data type")
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 20161102162103.66480-1-cornelia.huck@de.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-07 11:25:02 +00:00
Peter Maydell
9706e0162d hw/i2c/bitbang_i2c: Handle NACKs from devices
If the guest attempts to talk to a nonexistent device over i2c,
the i2c_start_transfer() function will return non-zero, indicating
that the bus is signalling a NACK. Similarly, if the i2c_send()
function returns nonzero then the target device returned a NACK.
Handle this possibility in the bitbang_i2c code, by returning
the state machine to the STOPPED state and returning the NACK
bit to the guest.

This bit of missing functionality was spotted by Coverity
(it noticed that we weren't checking the return value from
i2c_start_transfer()).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1477332749-27098-1-git-send-email-peter.maydell@linaro.org
2016-11-07 10:01:15 +00:00
Julian Brown
3823b9db77 Fix corruption of CPSR when SCTLR.EE is set
Fix a typo in arm_cpu_do_interrupt_aarch32 (OR'ing with ~CPSR_E
instead of CPSR_E) which meant that when we took an interrupt with
SCTLR.EE set we would corrupt the CPSR.

Signed-off-by: Julian Brown <julian@codesourcery.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-11-07 10:00:24 +00:00
Marcin Krzeminski
3bc4b52ccd nvic: set pending status for not active interrupts
According to ARM DUI 0552A 4.2.10. NVIC set pending status
also for disabled interrupts. Correct the logic for
when interrupts are marked pending both on input level
transition and when interrupts are dismissed, to match
the NVIC behaviour rather than the 11MPCore GIC.

Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-11-07 10:00:24 +00:00
Prasad J Pandit
6e29651c5e char: cadence: check baud rate generator and divider values
The Cadence UART device emulator calculates speed by dividing the
baud rate by a 'baud rate generator' & 'baud rate divider' value.
The device specification defines these register values to be
non-zero and within certain limits. Add checks for these limits
to avoid errors like divide by zero.

Reported-by: Huawei PSIRT <psirt@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1477596278-1470-1-git-send-email-ppandit@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-11-07 10:00:24 +00:00
Stefan Hajnoczi
9226682a40 Xen 2016/11/02
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Merge remote-tracking branch 'sstabellini/tags/xen-20161102-tag' into staging

Xen 2016/11/02

# gpg: Signature made Wed 02 Nov 2016 07:28:40 PM GMT
# gpg:                using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <sstabellini@kernel.org>"
# gpg:                 aka "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* sstabellini/tags/xen-20161102-tag:
  PCMachineState: introduce acpi_build_enabled field
  hw/xen/xen_pvdev: Include qemu/log.h for qemu_log_vprintf()

Message-id: alpine.DEB.2.10.1611021227530.19454@sstabellini-ThinkPad-X260
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-04 09:26:24 +00:00
Stefan Hajnoczi
199a5bde46 * NBD bugfix (Changlong)
* NBD write zeroes support (Eric)
 * Memory backend fixes (Haozhong)
 * Atomics fix (Alex)
 * New AVX512 features (Luwei)
 * "make check" logging fix (Paolo)
 * Chardev refactoring fallout (Paolo)
 * Small checkpatch improvements (Paolo, Jeff)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
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 =+Dt/
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* NBD bugfix (Changlong)
* NBD write zeroes support (Eric)
* Memory backend fixes (Haozhong)
* Atomics fix (Alex)
* New AVX512 features (Luwei)
* "make check" logging fix (Paolo)
* Chardev refactoring fallout (Paolo)
* Small checkpatch improvements (Paolo, Jeff)

# gpg: Signature made Wed 02 Nov 2016 08:31:11 AM GMT
# 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: (30 commits)
  main-loop: Suppress I/O thread warning under qtest
  docs/rcu.txt: Fix minor typo
  vl: exit qemu on guest panic if -no-shutdown is not set
  checkpatch: allow spaces before parenthesis for 'coroutine_fn'
  x86: add AVX512_4VNNIW and AVX512_4FMAPS features
  slirp: fix CharDriver breakage
  qemu-char: do not forward events through the mux until QEMU has started
  nbd: Implement NBD_CMD_WRITE_ZEROES on client
  nbd: Implement NBD_CMD_WRITE_ZEROES on server
  nbd: Improve server handling of shutdown requests
  nbd: Refactor conversion to errno to silence checkpatch
  nbd: Support shorter handshake
  nbd: Less allocation during NBD_OPT_LIST
  nbd: Let client skip portions of server reply
  nbd: Let server know when client gives up negotiation
  nbd: Share common option-sending code in client
  nbd: Send message along with server NBD_REP_ERR errors
  nbd: Share common reply-sending code in server
  nbd: Rename struct nbd_request and nbd_reply
  nbd: Rename NbdClientSession to NBDClientSession
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-03 16:32:30 +00:00
Stefan Hajnoczi
c2a4b384f5 virtio, pc: fixes and features
nvdimm hotplug support
 virtio migration and ioeventfd rework
 virtio crypto device
 ipmi fixes
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio, pc: fixes and features

nvdimm hotplug support
virtio migration and ioeventfd rework
virtio crypto device
ipmi fixes

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Tue 01 Nov 2016 05:23:40 PM GMT
# gpg:                using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (47 commits)
  acpi: fix assert failure caused by commit 35c5a52d
  acpi/ipmi: Initialize the fwinfo before fetching it
  ipmi: Add graceful shutdown handling to the external BMC
  ipmi: fix build config variable name for ipmi_bmc_extern.o
  ipmi: Implement shutdown via ACPI overtemp
  ipmi: chassis poweroff should use qemu_system_shutdown_request()
  ipmi_bmc_sim: Remove an unnecessary mutex
  ipmi: Remove hotplug from IPMI BMCs
  pc: memhp: enable nvdimm device hotplug
  nvdimm acpi: introduce _FIT
  nvdimm acpi: introduce fit buffer
  nvdimm acpi: prebuild nvdimm devices for available slots
  nvdimm acpi: use common macros instead of magic names
  acpi nvdimm: rename result_size to dsm_out_buf_siz
  nvdimm acpi: compile nvdimm acpi code arch-independently
  acpi nvdimm: fix Arg6 usage
  acpi nvdimm: fix ARG3 conflict
  acpi nvdimm: fix device physical address base
  acpi nvdimm: fix OperationRegion definition
  acpi nvdimm: fix wrong buffer size returned by DSM method
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-11-03 14:41:53 +00:00
Wei Liu
021746c131 PCMachineState: introduce acpi_build_enabled field
Introduce this field to control whether ACPI build is enabled by a
particular machine or accelerator.

It defaults to true if the machine itself supports ACPI build. Xen
accelerator will disable it because Xen is in charge of building ACPI
tables for the guest.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
2016-11-02 12:26:12 -07:00
Thomas Huth
b586363418 hw/xen/xen_pvdev: Include qemu/log.h for qemu_log_vprintf()
Olaf Hering reported a build failure due to an undefined reference
to 'qemu_log_vprintf'. Explicitely including qemu/log.h seems to
fix the issue.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Tested-by: Olaf Hering <olaf@aepfle.de>
2016-11-02 12:26:04 -07:00
Max Reitz
7d175d29c9 main-loop: Suppress I/O thread warning under qtest
We do not want to display the "I/O thread spun" warning for test cases
that run under qtest. The first attempt for this (commit
01c22f2cdd) tested whether qtest_enabled()
was true.

Commit 21a24302e8 correctly recognized
that just testing qtest_enabled() is not sufficient since there are some
tests that do not use the qtest accelerator but just the qtest character
device, and thus replaced qtest_enabled() by qtest_driver().

However, there are also some tests that only use the qtest accelerator
and not the qtest chardev; perhaps most notably the bash iotests.
Therefore, we have to check both qtest_enabled() and qtest_driver().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20161017180939.27912-1-mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:57 +01:00
Pranith Kumar
85cdeb36a4 docs/rcu.txt: Fix minor typo
s/presented/prevented/

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20161018050418.4912-1-bobby.prani@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:57 +01:00
Christian Borntraeger
864111f422 vl: exit qemu on guest panic if -no-shutdown is not set
For automated testing purposes it can be helpful to exit qemu
(poweroff) when the guest panics. Make this the default unless
-no-shutdown is specified.

For internal-errors like errors from KVM_RUN the behaviour is
not changed, in other words QEMU does not exit to allow debugging
in the QEMU monitor.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <1476775794-108012-1-git-send-email-borntraeger@de.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Jeff Cody
000980cb83 checkpatch: allow spaces before parenthesis for 'coroutine_fn'
Signed-off-by: Jeff Cody <jcody@redhat.com>
Message-Id: <83b0fae0728906e18849c971d22d077d7fc0f179.1478010883.git.jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Luwei Kang
95ea69fb46 x86: add AVX512_4VNNIW and AVX512_4FMAPS features
The spec can be found in Intel Software Developer Manual or in
Instruction Set Extensions Programming Reference.

Signed-off-by: Piotr Luc <piotr.luc@intel.com>
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Message-Id: <1477902446-5932-1-git-send-email-he.chen@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Paolo Bonzini
d14fabd9c2 slirp: fix CharDriver breakage
SLIRP expects a CharBackend as the third argument to slirp_add_exec,
but net/slirp.c was passing a CharDriverState.  Fix this to restore
guestfwd functionality.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Paolo Bonzini
fffbd9cf1b qemu-char: do not forward events through the mux until QEMU has started
Otherwise, the CHR_EVENT_OPENED event is sent twice: first when the
backend (for example "stdio") is opened, and second after processing
the command line.

The incorrect sending of the event prints the monitor banner when
QEMU is started with "-serial mon:stdio".  This includes the "(qemu)"
prompt; thus the monitor seems to be dead, whereas actually the
active front-end is the serial port.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
fa778fffdf nbd: Implement NBD_CMD_WRITE_ZEROES on client
Upstream NBD protocol recently added the ability to efficiently
write zeroes without having to send the zeroes over the wire,
along with a flag to control whether the client wants a hole.

The generic block code takes care of falling back to the obvious
write of lots of zeroes if we return -ENOTSUP because the server
does not have WRITE_ZEROES.

Ideally, since NBD_CMD_WRITE_ZEROES does not involve any data
over the wire, we want to support transactions that are much
larger than the normal 32M limit imposed on NBD_CMD_WRITE.  But
the server may still have a limit smaller than UINT_MAX, so
until experimental NBD protocol additions for advertising various
command sizes is finalized (see [1], [2]), for now we just stick to
the same limits as normal writes.

[1] https://github.com/yoe/nbd/blob/extension-info/doc/proto.md
[2] https://sourceforge.net/p/nbd/mailman/message/35081223/

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-17-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
1f4d6d18ed nbd: Implement NBD_CMD_WRITE_ZEROES on server
Upstream NBD protocol recently added the ability to efficiently
write zeroes without having to send the zeroes over the wire,
along with a flag to control whether the client wants to allow
a hole.

Note that when it comes to requiring full allocation, vs.
permitting optimizations, the NBD spec intentionally picked a
different sense for the flag; the rules in qemu are:
MAY_UNMAP == 0: must write zeroes
MAY_UNMAP == 1: may use holes if reads will see zeroes

while in NBD, the rules are:
FLAG_NO_HOLE == 1: must write zeroes
FLAG_NO_HOLE == 0: may use holes if reads will see zeroes

In all cases, the 'may use holes' scenario is optional (the
server need not use a hole, and must not use a hole if
subsequent reads would not see zeroes).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-16-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
b6f5d3b573 nbd: Improve server handling of shutdown requests
NBD commit 6d34500b clarified how clients and servers are supposed
to behave before closing a connection. It added NBD_REP_ERR_SHUTDOWN
(for the server to announce it is about to go away during option
haggling, so the client should quit sending NBD_OPT_* other than
NBD_OPT_ABORT) and ESHUTDOWN (for the server to announce it is about
to go away during transmission, so the client should quit sending
NBD_CMD_* other than NBD_CMD_DISC).  It also clarified that
NBD_OPT_ABORT gets a reply, while NBD_CMD_DISC does not.

This patch merely adds the missing reply to NBD_OPT_ABORT and teaches
the client to recognize server errors.  Actually teaching the server
to send NBD_REP_ERR_SHUTDOWN or ESHUTDOWN would require knowing that
the server has been requested to shut down soon (maybe we could do
that by installing a SIGINT handler in qemu-nbd, which transitions
from RUNNING to a new state that waits for the client to react,
rather than just out-right quitting - but that's a bigger task for
another day).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-15-git-send-email-eblake@redhat.com>
[Move dummy ESHUTDOWN to include/qemu/osdep.h. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
8b34a9dbc3 nbd: Refactor conversion to errno to silence checkpatch
Checkpatch complains that 'return EINVAL' is usually wrong
(since we tend to favor 'return -EINVAL').  But it is a
false positive for nbd_errno_to_system_errno().  Since NBD
may add future defined wire values, refactor the code to
keep checkpatch happy.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-14-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
c203c59ad9 nbd: Support shorter handshake
The NBD Protocol allows the server and client to mutually agree
on a shorter handshake (omit the 124 bytes of reserved 0), via
the server advertising NBD_FLAG_NO_ZEROES and the client
acknowledging with NBD_FLAG_C_NO_ZEROES (only possible in
newstyle, whether or not it is fixed newstyle).  It doesn't
shave much off the wire, but we might as well implement it.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alex Bligh <alex@alex.org.uk>
Message-Id: <1476469998-28592-13-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Eric Blake
75368aab9b nbd: Less allocation during NBD_OPT_LIST
Since we know that the maximum name we are willing to accept
is small enough to stack-allocate, rework the iteration over
NBD_OPT_LIST responses to reuse a stack buffer rather than
allocating every time.  Furthermore, we don't even have to
allocate if we know the server's length doesn't match what
we are searching for.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-12-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
7d3123e177 nbd: Let client skip portions of server reply
The server has a nice helper function nbd_negotiate_drop_sync()
which lets it easily ignore fluff from the client (such as the
payload to an unknown option request).  We can't quite make it
common, since it depends on nbd_negotiate_read() which handles
coroutine magic, but we can copy the idea into the client where
we have places where we want to ignore data (such as the
description tacked on the end of NBD_REP_SERVER).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-11-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
2cdbf41362 nbd: Let server know when client gives up negotiation
The NBD spec says that a client should send NBD_OPT_ABORT
rather than just dropping the connection, if the client doesn't
like something the server sent during option negotiation.  This
is a best-effort attempt only, and can only be done in places
where we know the server is still in sync with what we've sent,
whether or not we've read everything the server has sent.
Technically, the server then has to reply with NBD_REP_ACK, but
it's not worth complicating the client to wait around for that
reply.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-10-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
c8a3a1b6c4 nbd: Share common option-sending code in client
Rather than open-coding each option request, it's easier to
have common helper functions do the work.  That in turn requires
having convenient packed types for handling option requests
and replies.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-9-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
3668328303 nbd: Send message along with server NBD_REP_ERR errors
The NBD Protocol allows us to send human-readable messages
along with any NBD_REP_ERR error during option negotiation;
make use of this fact for clients that know what to do with
our message.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-8-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
526e5c6559 nbd: Share common reply-sending code in server
Rather than open-coding NBD_REP_SERVER, reuse the code we
already have by adding a length parameter.  Additionally,
the refactoring will make adding NBD_OPT_GO in a later patch
easier.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-7-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
ed2dd91267 nbd: Rename struct nbd_request and nbd_reply
Our coding convention prefers CamelCase names, and we already
have other existing structs with NBDFoo naming.  Let's be
consistent, before later patches add even more structs.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-6-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
10676b81a9 nbd: Rename NbdClientSession to NBDClientSession
It's better to use consistent capitalization of the namespace
used for NBD functions; we have more instances of NBD* than
Nbd*.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-5-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
315f78abfc nbd: Rename NBDRequest to NBDRequestData
We have both 'struct NBDRequest' and 'struct nbd_request'; making
it confusing to see which does what.  Furthermore, we want to
rename nbd_request to align with our normal CamelCase naming
conventions.  So, rename the struct which is used to associate
the data received during request callbacks, while leaving the
shorter name for the description of the request sent over the
wire in the NBD protocol.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-4-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
b626b51a67 nbd: Treat flags vs. command type as separate fields
Current upstream NBD documents that requests have a 16-bit flags,
followed by a 16-bit type integer; although older versions mentioned
only a 32-bit field with masking to find flags.  Since the protocol
is in network order (big-endian over the wire), the ABI is unchanged;
but dealing with the flags as a separate field rather than masking
will make it easier to add support for upcoming NBD extensions that
increase the number of both flags and commands.

Improve some comments in nbd.h based on the current upstream
NBD protocol (https://github.com/yoe/nbd/blob/master/doc/proto.md),
and touch some nearby code to keep checkpatch.pl happy.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-3-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Eric Blake
b1a75b3348 nbd: Add qemu-nbd -D for human-readable description
The NBD protocol allows servers to advertise a human-readable
description alongside an export name during NBD_OPT_LIST.  Add
an option to pass through the user's string to the NBD client.

Doing this also makes it easier to test commit 200650d4, which
is the client counterpart of receiving the description.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1476469998-28592-2-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:55 +01:00
Haozhong Zhang
1775f111ea exec.c: check memory backend file size with 'size' option
If the memory backend file is not large enough to hold the required 'size',
Qemu will report error and exit.

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Message-Id: <20161027042300.5929-3-haozhong.zhang@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20161102010551.2723-1-haozhong.zhang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:51 +01:00
Haozhong Zhang
53000638f2 acpi: fix assert failure caused by commit 35c5a52d
Commit 35c5a52d "acpi: do not use TARGET_PAGE_SIZE" changed struct
NvdimmDsmIn from a variable-size structure to a fixed-size structure of
4096 bytes. It forgot to adjust an assert in
nvdimm_dsm_set_label_data(..., NvdimmDsmIn *in, ...):
    assert(sizeof(*in) + sizeof(*set_label_data) + set_label_data->length <=
           4096);
which could crash QEMU when guest writes NVDIMM labels.

Fix it by replacing sizeof(*in) by offsetof(NvdimmDsmIn, arg3).

Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com>
Reported-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Corey Minyard
698ae42b91 acpi/ipmi: Initialize the fwinfo before fetching it
The initialization was missed before, resulting in some
bad data in the smbus case.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Corey Minyard
f53b9f3625 ipmi: Add graceful shutdown handling to the external BMC
I misunderstood the workings of the power settings, the power off
is a force off operation and there needs to be a separate graceful
shutdown operation.  So replace the force off operation with a
graceful shutdown.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Daniel P. Berrange
4059fa63b7 ipmi: fix build config variable name for ipmi_bmc_extern.o
The original commit:

  commit 67aa56fc03
  Author: Corey Minyard <cminyard@mvista.com>
  Date:   Thu Dec 17 12:50:06 2015 -0600

    ipmi: Add an external connection simulation interface

defined a new variable CONFIG_IPMI_EXTERN, but then went
on to mistakely use the pre-existing CONFIG_IPMI_LOCAL
variable.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Corey Minyard
9c22c1c347 ipmi: Implement shutdown via ACPI overtemp
This is allowed by the IPMI specification for graceful shutdown,
so implement it.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Cédric Le Goater
2b7812d303 ipmi: chassis poweroff should use qemu_system_shutdown_request()
When issuing a chassis 'powerdown' control command, the routine
qemu_system_shutdown_request() should be used to exit the guest.
qemu_system_powerdown_request() will initiate a soft shutdown which is
not what is required by the IPMI (28.3 Chassis Control Command):

    0h = power down. Force system into soft off (S4/S45) state. This
    is for 'emergency' management power down actions. The command does
    not initiate a clean shut-down of the operating system prior to
    powering down the system

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Corey Minyard
0eb4d4eee1 ipmi_bmc_sim: Remove an unnecessary mutex
Get rid of the unnecessary mutex, it was a vestige
of something else that was not done.  That way we don't
have to free it.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00
Corey Minyard
66abfddb28 ipmi: Remove hotplug from IPMI BMCs
No hotplug support, make sure it doesn't happen.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-11-01 19:21:09 +02:00