disas/m68k.c obviously belong to the m68k CPU section in
the MAINTAINERS file, but remove the hw/m68k/ directory
here since it only contains machine (not CPU) related
files, as requested by Laurent. Add the machine related
files to the right machine sections instead.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The files w/cpu/a*mpcore.c are already assigned to the ARM CPU
section, but the corresponding headers include/hw/cpu/a*mpcore.h
are still missing.
The file hw/*/imx* are already assigned to the i.MX31 machine, but
the corresponding header files include/hw/*/imx* are still missing.
The file hw/misc/arm_integrator_debug.c seems to belong to Integrator
CP, hw/cpu/realview_mpcore.c seems to belong to Real View, and
hw/misc/mst_fpga.c seems to belong to PXA2XX.
And the files hw/misc/zynq* and include/hw/misc/zynq* seem to belong
to the Xilinx Zynq machine.
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
On systems which do not provide ncursesw.pc and whose /usr/include/curses.h
does not include wide support, we should not only try with no -I, i.e.
/usr/include, but also with -I/usr/include/ncursesw.
To properly detect for wide support with and without -Werror, we need to
check for the presence of e.g. the WACS_DEGREE macro.
We also want to stop at the first curses_inc_list configuration which works,
and make sure to set IFS to : at each new loop.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 20161109102752.13255-1-samuel.thibault@ens-lyon.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The printscreen/sysrq and pause/break keys currently don't work for guests
using -usbdevice keyboard when accessed through vnc with a gtk-vnc based
client.
The reason for this is a mismatch between gtk-vnc and qemu in how these keys
should be mapped to XT keycodes.
On the original IBM XT these keys behaved differently than other keys.
Quoting from https://www.win.tue.nl/~aeb/linux/kbd/scancodes-1.html:
The keys PrtSc/SysRq and Pause/Break are special. The former produces
scancode e0 2a e0 37 when no modifier key is pressed simultaneously, e0 37
together with Shift or Ctrl, but 54 together with (left or right) Alt. (And
one gets the expected sequences upon release. But see below.) The latter
produces scancode sequence e1 1d 45 e1 9d c5 when pressed (without modifier)
and nothing at all upon release. However, together with (left or right)
Ctrl, one gets e0 46 e0 c6, and again nothing at release. It does not
repeat.
Gtk-vnc supports the 'QEMU Extended Key Event Message' RFB extension to send
raw XT keycodes directly to qemu, but the specification doesn't explicitly
specify how to map such long/complicated keycode sequences. From the spec
(https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#qemu-extended-key-event-message)
The keycode is the XT keycode that produced the keysym. An XT keycode is an
XT make scancode sequence encoded to fit in a single U32 quantity. Single
byte XT scancodes with a byte value less than 0x7f are encoded as is.
2-byte XT scancodes whose first byte is 0xe0 and second byte is less than
0x7f are encoded with the high bit of the first byte set
hid.c currently expects the keycode sequence with shift/ctl for sysrq (e0 37
-> 0xb7 in RFB), whereas gtk-vnc uses the sequence with alt (0x54).
Likewise, hid.c expects the code without modifiers (e1 1d 45 -> 0xc5 in
RFB), whereas gtk-vnc sends the keycode sequence with ctrl for pause (e0 46
-> 0xc6 in RFB).
See keymaps.cvs in gtk-vnc for the mapping used:
https://git.gnome.org/browse/gtk-vnc/tree/src/keymaps.csv#n150
Now, it isn't obvious to me which sequence is really "right", but as the
0x54/0xc6 keycodes are currently unused in hid.c, supporting both seems like
the pragmatic solution to me. The USB HID keyboard boot protocol used by
hid.c doesn't have any other mapping applicable to these keys.
The other guest keyboard interfaces (ps/2, virtio, ..) are not affected,
because they handle these keys differently.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Message-id: 20161028145132.1702-1-peter@korsgaard.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
GDK_KEY_Delete is only defined with gtk version 2.22 and newer,
on older versions this key was called GDK_Delete instead.
Since this is the case for all GDK_KEY_* defines, change the
already existing preprocessor check there to test for version 2.22,
so we know that we can remove this code block in case we require
that version as a minimum one day.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1478081328-25515-1-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In usbredir destroy dispatch function, it doesn't free the vm change
state handler once registered in usbredir_realize function. This will
lead a memory leak issue. This patch avoid this.
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 58216976.d0236b0a.77b99.bcd6@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In ehci_init_transfer function, if the 'cpage' is bigger than 4,
it doesn't free the 'p->sgl' once allocated previously thus leading
a memory leak issue. This patch avoid this.
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Message-id: 5821c0f4.091c6b0a.e0c92.e811@mx.google.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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>
Commit 7d3123e converted a single read_sync() into a while loop
that assumed that read_sync() would either make progress or give
an error. But when the server hangs up early, the client sees
EOF (a read_sync() of 0) and never makes progress, which in turn
caused qemu-iotest './check -nbd 83' to go into an infinite loop.
Rework the loop to accomodate reads cut short by EOF.
Reported-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1478551093-32757-1-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It helps when reading the code to see how the number is arrived at.
Signed-off-by: Doug Evans <dje@google.com>
Message-Id: <94eb2c187eda43dba005406c86f7@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Hyper-V HV_X64_MSR_VP_RUNTIME was introduced in linux-4.4 + qemu-2.5.
As long as the KVM module supports, qemu will save / load the
vmstate_msr_hyperv_runtime register during the migration.
Regardless of whether the hyperv_runtime configuration of x86_cpu_properties is
enabled.
The qemu-2.3 does not support this feature, of course, failed to migrate.
linux-BGSfqC:/home/qemu # ./x86_64-softmmu/qemu-system-x86_64 --enable-kvm \
-nodefaults -machine pc-i440fx-2.3,accel=kvm,usb=off -smp 4 -m 4096 -drive \
file=/work/suse/sles11sp3.img.bak,format=raw,if=none,id=drive-virtio-disk0,cache=none \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 \
-vnc :99 -device cirrus-vga,id=video0,vgamem_mb=8,bus=pci.0,addr=0x2 -monitor vc
save_section_header:se->section_id=3,se->idstr:ram,se->instance_id=0,se->version_id=4
save_section_header:se->section_id=0,se->idstr:timer,se->instance_id=0,se->version_id=2
save_section_header:se->section_id=4,se->idstr:cpu_common,se->instance_id=0,se->version_id=1
save_section_header:se->section_id=5,se->idstr:cpu,se->instance_id=0,se->version_id=12
vmstate_subsection_save:vmsd->name:cpu/async_pf_msr
hyperv_runtime_enable_needed:env->msr_hv_runtime=128902811
vmstate_subsection_save:vmsd->name:cpu/msr_hyperv_runtime
Since hyperv_runtime is false, vm will not use hv->runtime_offset, then
vmstate_msr_hyperv_runtime is no need to transfer while migrating.
Signed-off-by: ann.zhuangyanying@huawei.com
Message-Id: <1478247398-5016-1-git-send-email-ann.zhuangyanying@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
With current code, pid file is open after various
sockets, chardevs, fsdevs and the like. This causes
interesting effects, for example when monitor is a
unix-socket, and another qemu instance is already
running, new qemu first "damages" the socket and
next complain that it can't acquire the pid file and
exits, making running qemu unreachable.
Move pid file creation earlier, right after the call
to os_daemonize(), where we know our process id (pid).
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <1478096330-18081-1-git-send-email-mjt@msgid.tls.msk.ru>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The impact is small because kvm_get_vcpu_events fixes env->hflags, but
it is wrong and could cause INITs to be delayed arbitrarily with
-machine kernel_irqchip=off.
Reported-by: Achille Fouilleul <achille.fouilleul@gadz.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When using QEMU for Xen PV guest, QEMU abort with:
xen-common.c:118:xen_init: Object 0x7f2b8325dcb0 is not an instance of type generic-pc-machine
This is because the machine 'xenpv' also use accel=xen. Moving the code
to xen_hvm_init() fix the issue.
This fix 021746c131.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
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>
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>
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>
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>
* 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
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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>
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>
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
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>
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>
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>
* 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)
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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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
