aboutsummaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2015-05-29virtio-console: notify chardev when writableMarc-André Lureau1-0/+10
When the virtio serial is writable, notify the chardev backend with qemu_chr_accept_input(). Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-05-28Revert "gdbstub: Do not kill target in system emulation mode"Fabien Chouteau1-2/+0
The requirements described in this patch are implemented by "Add GDB qAttached support". This reverts commit 00e94dbc7fd0110b0555d59592b004333adfb4b8. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-28Add GDB qAttached supportJan Kiszka1-0/+10
With this patch QEMU handles qAttached request from gdb. When QEMU replies 1, GDB sends a "detach" command at the end of a debugging session otherwise GDB sends "kill". The default value for qAttached is 1 on system emulation and 0 on user emulation. Based on original version by Fabien Chouteau. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-28gdbstub: Introduce an is is_query_packet helperJan Kiszka1-2/+10
This helper supports parsing of query packets with optional extensions. The separator can be specified so that we can use it already for both qqemu.sstep[=] and qSupported[:feature]. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-28gdbstub: Fix qOffsets packet detectionJan Kiszka1-1/+1
qOffsets has no additional optional parameters. So match the complete string to avoid stumbling over possible future commands with identical prefix. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-28Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20150528' into stagingPeter Maydell11-43/+357
A set of patches add support for vector registers on s390x. Notable: Floating point registers and vector registers overlap, so extra care is needed so that we end up with a consistent state in all cases. # gpg: Signature made Thu May 28 09:37:27 2015 BST using RSA key ID C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" * remotes/cohuck/tags/s390x-20150528: s390x: Enable vector processing capability s390x: Migrate vector registers s390x: Add vector registers to ELF dump linux/elf.h update s390x: Add vector registers to HMP output s390x: gdb updates for vector registers gdb-xml: Include XML for s390 vector registers s390x: Store Additional Status SIGP order s390x: Vector Register IOCTLs s390x: Common access to floating point registers Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-28Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into ↵Peter Maydell19-239/+331
staging # gpg: Signature made Wed May 27 11:02:55 2015 BST using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/net-pull-request: net/net: Record usage status of mac address tap: Improve -netdev/netdev_add/-net/... tap error reporting tap: Finish conversion of tap_open() to Error tap-solaris: Convert tap_open() to Error tap-bsd: Convert tap_open() to Error tap-linux: Convert tap_open() to Error tap: Permit incremental conversion of tap_open() to Error tap: Convert launch_script() to Error tap: Convert net_init_tap_one() to Error tap: Convert tap_set_sndbuf() to Error tap: Improve -netdev/netdev_add/-net/... bridge error reporting tap: net_tap_fd_init() can't fail, drop dead error handling net/dump: Improve -net/host_net_add dump error reporting net: Improve -net nic error reporting net: Permit incremental conversion of init functions to Error net: Improve error message for -net hubport a bit net: Change help text to list -netdev instead of -net by default Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-27s390x: Enable vector processing capabilityEric Farman1-0/+1
Everything is finally in place, inform the kernel that user space supports vector registers. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Migrate vector registersEric Farman2-0/+75
When migrating a guest, be sure to include the vector registers. The vector registers are defined in a subsection, similar to the existing subsection for floating point registers. Since the floating point registers are always present (and thus migrated), we can skip them when performing the migration of the vector registers which may or may not be present. Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Add vector registers to ELF dumpEric Farman1-0/+39
Create ELF notes for the vector registers where applicable, so that their contents can be examined by utilities such as crash or readelf. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27linux/elf.h updateEric Farman1-0/+2
Sync with kernel elf.h updates to get s390x vector register definitions. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Add vector registers to HMP outputEric Farman1-0/+6
There are mechanisms to dump registers via the qemu HMP interface, such as the "info registers" command. Expand this output to dump the new vector registers. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: gdb updates for vector registersEric Farman2-1/+47
gdb allows registers to be displayed/modified, and is being updated to account for the new vector registers. Mirror these changes in the gdb stub in qemu so that this can be performed when gdb is attached to the qemu gdbserver. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27gdb-xml: Include XML for s390 vector registersEric Farman1-0/+59
Include the vector registers XML file that is provided by gdb, and can be used by the qemu gdbserver interface. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Store Additional Status SIGP orderEric Farman2-0/+56
Add handling for the Store Additional Status at Address order that exists for the Signal Processor (SIGP) instruction. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Vector Register IOCTLsEric Farman4-35/+56
Handle the actual syncing of the vector registers with kernel space, via the get/put register IOCTLs. The vector registers that were introduced with the z13 overlay the existing floating point registers. FP registers 0-15 are the high-halves of vector registers 0-15. Thus, remove the freg fields and replace them with the equivalent vector field to avoid errors in duplication. Moreover, synchronize either the vector registers via kvm_sync_regs, or floating point registers via the GET/SET FPU IOCTLs. Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27s390x: Common access to floating point registersEric Farman7-10/+19
Provide a routine to access the correct floating point register, to simplify future expansion. Suggested-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-05-27net/net: Record usage status of mac addressShannon Zhao1-4/+55
Currently QEMU dynamically generates mac address for the NIC which doesn't specify the mac address. But when we hotplug a NIC without specifying mac address, the mac address will increase for the same NIC along with hotplug and hot-unplug, and at last it will overflow. And if we codeplug one NIC with mac address e.g. "52:54:00:12:34:56", then hotplug one NIC without specifying mac address and the mac address of the hotplugged NIC is duplicate of "52:54:00:12:34:56". This patch add a mac_table to record the usage status and free the mac address when the NIC is unrealized. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Improve -netdev/netdev_add/-net/... tap error reportingMarkus Armbruster1-23/+22
When -netdev tap fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -netdev tap,id=foo qemu-system-x86_64: -netdev tap,id=foo: could not configure /dev/net/tun: Operation not permitted qemu-system-x86_64: -netdev tap,id=foo: Device 'tap' could not be initialized With the command line, the messages go to stderr. In HMP, they go to the monitor. In QMP, the second one becomes the error reply, and the first one goes to stderr. Convert net_init_tap() to Error. This suppresses the unwanted second message, and makes the specific error the QMP error reply. [Dropped duplicate "and" from error message as suggested by Eric Blake: "ifname=, script=, downscript=, and vnet_hdr=, " "queues=, and vhostfds= are invalid with helper=" --Stefan] Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-16-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Finish conversion of tap_open() to ErrorMarkus Armbruster1-4/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-15-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap-solaris: Convert tap_open() to ErrorMarkus Armbruster1-29/+30
Fixes inappropriate use of syslog(). Not fixed: leaks on error paths, suspicious non-fatal errors. FIXMEs added instead. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-14-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap-bsd: Convert tap_open() to ErrorMarkus Armbruster1-19/+14
Fixes inappropriate use of stderr in monitor command handler. While there, improve some of the messages a bit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-13-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap-linux: Convert tap_open() to ErrorMarkus Armbruster1-8/+9
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-12-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Permit incremental conversion of tap_open() to ErrorMarkus Armbruster7-13/+22
Convert the trivial ones immediately: tap-aix and tap-haiku. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-11-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Convert launch_script() to ErrorMarkus Armbruster1-12/+28
Fixes inappropriate use of stderr in monitor command handler. While there, improve the messages some. [Fixed Error **err -> Error *err local variable that broke the build. --Stefan] Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-10-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Convert net_init_tap_one() to ErrorMarkus Armbruster1-32/+38
[Dropped %s from "tap: open vhost char device failed: %s" since error_setg_errno() already prints a human-readable error string and there is no format string argument. --Stefan] Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-9-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Convert tap_set_sndbuf() to ErrorMarkus Armbruster7-14/+10
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-8-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: Improve -netdev/netdev_add/-net/... bridge error reportingMarkus Armbruster1-11/+19
When -netdev bridge fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -netdev bridge,id=foo failed to launch bridge helper qemu-system-x86_64: -netdev bridge,id=foo: Device 'bridge' could not be initialized The first message goes to stderr. Wrong for HMP, because errors need to go to the monitor there. The second message goes to stderr for -netdev, to the monitor for HMP netdev_add, and becomes the error reply for QMP netdev_add. Convert net_bridge_run_helper() to Error, and propagate its errors through net_init_bridge(). This ensures the error gets reported where the user is, and suppresses the unwanted second message. While there, improve the error messages a bit. The above example becomes: $ qemu-system-x86_64 -netdev bridge,id=foo qemu-system-x86_64: -netdev bridge,id=foo: bridge helper failed net_init_tap() also uses net_bridge_run_helper(). Propagate its errors there as well. Improves reporting these errors with -netdev tap & friends. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-7-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27tap: net_tap_fd_init() can't fail, drop dead error handlingMarkus Armbruster1-13/+1
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-6-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27net/dump: Improve -net/host_net_add dump error reportingMarkus Armbruster1-6/+6
When -net dump fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -net dump,id=foo,file=/eperm qemu-system-x86_64: -net dump,id=foo,file=/eperm: -net dump: can't open /eperm qemu-system-x86_64: -net dump,id=foo,file=/eperm: Device 'dump' could not be initialized Convert net_init_tap() to Error. This suppresses the unwanted second message. Improve the error messages to include strerror(errno) where appropriate. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-5-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27net: Improve -net nic error reportingMarkus Armbruster1-6/+6
When -net nic fails, it first reports a specific error, then a generic one, like this: $ qemu-system-x86_64 -net nic,netdev=nonexistent qemu-system-x86_64: -net nic,netdev=nonexistent: netdev 'nonexistent' not found qemu-system-x86_64: -net nic,netdev=nonexistent: Device 'nic' could not be initialized Convert net_init_nic() to Error to get rid of the unwanted second error message. While there, tidy up an Overcapitalized Error Message. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-4-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27net: Permit incremental conversion of init functions to ErrorMarkus Armbruster12-29/+40
Error reporting for netdev_add is broken: the net_client_init_fun[] report the actual errors with (at best) error_report(), and their caller net_client_init1() makes up a generic error on top. For command line and HMP, this produces an mildly ugly error cascade. In QMP, the actual errors go to stderr, and the generic error becomes the command's error reply. To fix this, we need to convert the net_client_init_fun[] to Error. To permit fixing them one by one, add an Error ** parameter to the net_client_init_fun[]. If the call fails without returning an Error, make up the same generic Error as before. But if it returns one, use that instead. Since none of them does so far, no functional change. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-3-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27net: Improve error message for -net hubport a bitMarkus Armbruster2-4/+6
Type "hubport" is valid only with -netdev. Unfortunately, that's detected late and the error message doesn't explain why: $ qemu-system-i386 -net hubport,id=foo,hubid=0 qemu-system-i386: -net hubport,id=foo,hubid=0: Device 'hubport' could not be initialized Improve the error message to "Parameter 'type' expects a net type". Not fixed: -net hubport without the parameters required by -netdev hubport still asks for those parameters: $ qemu-system-i386 -net hubport qemu-system-i386: -net hubport: Parameter 'hubid' is missing Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1431691143-1015-2-git-send-email-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-27net: Change help text to list -netdev instead of -net by defaultThomas Huth1-32/+45
Looking at the output of "qemu-system-xxx -help", you easily get the impression that "-net" is the preferred way instead of "-netdev" to specify host network interface, since the "-net" option is omnipresent but the "-netdev" option is only listed as a one-liner at the end. This is ugly since "-net" is considered as legacy and even might be removed one day. Thus, this patch switches the output to explain the host network interfaces with the "-netdev" option instead, moving the old "-net" option into some few lines at the end. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-id: 1431701904-12230-1-git-send-email-thuth@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-05-26Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into stagingPeter Maydell16-359/+1031
# gpg: Signature made Fri May 22 20:58:44 2015 BST using RSA key ID AAFC390E # gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: FAEB 9711 A12C F475 812F 18F2 88A9 064D 1835 61EB # Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76 CBD0 7DEF 8106 AAFC 390E * remotes/jnsnow/tags/ide-pull-request: ahci: do not remap clb/fis unconditionally macio: move unaligned DMA write code into separate pmac_dma_write() function macio: move unaligned DMA read code into separate pmac_dma_read() function qtest: pre-buffer hex nibs libqos/ahci: Swap memread/write with bufread/write qtest: add memset to qtest protocol qtest: Add base64 encoded read/write qtest: allow arbitrarily long sends qtest/ahci: add migrate halted dma test qtest/ahci: add halted dma test qtest/ahci: add flush migrate test qtest/ahci: add migrate dma test qtest/ahci: Add migration test ich9/ahci: Enable Migration libqos: Add migration helpers libqos/ahci: Fix sector set method libqos/ahci: Add halted command helpers glib: remove stale compat functions configure: require glib 2.22 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-05-22ahci: do not remap clb/fis unconditionallyJohn Snow1-25/+63
This continues the IOMMU fix from 2.3, where we should not attempt to remap the CLB or FIS RX buffers if the AHCI device is currently running. The same applies to migration: keep our mitts off these registers unless the device is supposed to be on. Does not impact backwards compatibility for the AHCI device. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1431470173-30847-2-git-send-email-jsnow@redhat.com
2015-05-22macio: move unaligned DMA write code into separate pmac_dma_write() functionMark Cave-Ayland2-147/+125
Similarly switch the macio IDE routines over to use the new function and tidy-up the remaining code as required. [Maintainer edit: printf format codes adjusted for 32/64bit. --js] Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Acked-by: John Snow <jsnow@redhat.com> Message-id: 1425939893-14404-3-git-send-email-mark.cave-ayland@ilande.co.uk Signed-off-by: John Snow <jsnow@redhat.com>
2015-05-22macio: move unaligned DMA read code into separate pmac_dma_read() functionMark Cave-Ayland1-106/+147
This considerably helps simplify the complexity of the macio read routines and by switching macio CDROM accesses to use the new code, fixes the issue with the CDROM device being detected intermittently by Darwin/OS X. [Maintainer edit: printf format codes adjusted for 32/64bit. --js] Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ailande.co.uk> Acked-by: John Snow <jsnow@redhat.com> Message-id: 1425939893-14404-2-git-send-email-mark.cave-ayland@ilande.co.uk Signed-off-by: John Snow <jsnow@redhat.com>
2015-05-22qtest: pre-buffer hex nibsJohn Snow2-7/+12
Instead of converting each byte one-at-a-time and then sending each byte over the wire, use sprintf() to pre-compute all of the hex nibs into a single buffer, then send the entire buffer all at once. This gives a moderate speed boost to memread() and memwrite() functions. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 1431021095-7558-2-git-send-email-jsnow@redhat.com
2015-05-22libqos/ahci: Swap memread/write with bufread/writeJohn Snow2-6/+6
Where it makes sense, use the new faster primitives. For generally small reads/writes such as for the PRDT and FIS packets, stick with the more wasteful but easier to debug memread/memwrite. For ahci-test (before migration tests): With this patch: real 0m3.675s user 0m2.582s sys 0m1.718s Without any qtest protocol improvements: real 0m14.171s user 0m12.072s sys 0m12.527s Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1430864578-22072-6-git-send-email-jsnow@redhat.com
2015-05-22qtest: add memset to qtest protocolJohn Snow2-7/+21
Previously, memset was just a frontend to write() and only stupidly sent the pattern many times across the wire. Let's not discuss who stupidly wrote it like that in the first place. (Hint: It was me.) Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1430864578-22072-4-git-send-email-jsnow@redhat.com
2015-05-22qtest: Add base64 encoded read/writeJohn Snow3-0/+149
For larger pieces of data that won't need to be debugged and viewing the hex nibbles is unlikely to be useful, we can encode data using base64 instead of encoding each byte as %02x, which leads to some space savings and faster reads/writes. For now, the default is left as hex nibbles in memwrite() and memread(). For the purposes of making qtest io easier to read and debug, some callers may want to specify using the old encoding format for small patches of data where the savings from base64 wouldn't be that profound. memwrite/memread use a data encoding that takes 2x the size of the original buffer, but base64 uses "only" (4/3)x, so for larger buffers we can save a decent amount of time and space. Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1430864578-22072-3-git-send-email-jsnow@redhat.com
2015-05-22qtest: allow arbitrarily long sendsJohn Snow1-18/+28
qtest currently has a static buffer of size 1024 that if we overflow, ignores the additional data silently which leads to hangs or stream failures. Use glib's string facilities to allow arbitrarily long data, but split this off into a new function, qtest_sendf. Static data can still be sent using qtest_send, which avoids the malloc/copy overhead. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1430864578-22072-2-git-send-email-jsnow@redhat.com
2015-05-22qtest/ahci: add migrate halted dma testJohn Snow1-1/+74
Test migrating a halted DMA transaction. Resume, then test data integrity. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-10-git-send-email-jsnow@redhat.com
2015-05-22qtest/ahci: add halted dma testJohn Snow1-0/+60
If we're going to test the migration of halted DMA jobs, we should probably check to make sure we can resume them locally as a first step. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-9-git-send-email-jsnow@redhat.com
2015-05-22qtest/ahci: add flush migrate testJohn Snow1-1/+51
Use blkdebug to inject an error on first flush, then attempt to flush on the first guest. When the error halts the VM, migrate to the second VM, and attempt to resume the command. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-8-git-send-email-jsnow@redhat.com
2015-05-22qtest/ahci: add migrate dma testJohn Snow2-0/+46
Write to one guest, migrate, and then read from the other. adjust ahci_io to clear any buffers it creates, so that we can use ahci_io safely on both guests knowing we are using empty buffers and not accidentally re-using data. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-7-git-send-email-jsnow@redhat.com
2015-05-22qtest/ahci: Add migration testJohn Snow1-0/+90
Notes: * The migration is performed on QOSState objects. * The migration is performed in such a way that it does not assume consistency between the allocators attached to each. That is to say, you can use each QOSState object completely independently and then at an arbitrary point decide to migrate, and the destination object will now be consistent with the memory within the source guest. The source object that was migrated from will have a completely blank allocator. ahci-test.c: - verify_state is added - ahci_migrate is added as a frontend to migrate - test_migrate_sanity test case is added. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-6-git-send-email-jsnow@redhat.com
2015-05-22ich9/ahci: Enable MigrationJohn Snow2-2/+0
Lift the flag preventing the migration of the ICH9/AHCI devices. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-5-git-send-email-jsnow@redhat.com
2015-05-22libqos: Add migration helpersJohn Snow4-17/+145
libqos.c: -set_context for addressing which commands go where -migrate performs the actual migration malloc.c: - Structure of the allocator is adjusted slightly with a second-tier malloc to make swapping around the allocators easy when we "migrate" the lists from the source to the destination. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1430417242-11859-4-git-send-email-jsnow@redhat.com
generated by cgit v1.1 at 2024-10-16 01:06:01 +0000