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2016-04-05util: retry getaddrinfo if getting EAI_BADFLAGS with AI_V4MAPPEDDaniel P. Berrange2-5/+19
The FreeBSD header files define the AI_V4MAPPED but its implementation of getaddrinfo() always returns an error when that flag is set. eg address resolution failed for localhost:9000: Invalid value for ai_flags There are also reports of the same problem on OS-X 10.6 Since AI_V4MAPPED is not critical functionality, if we get an EAI_BADFLAGS error then just retry without the AI_V4MAPPED flag set. Use a static var to cache this status so we don't have to retry on every single call. Also remove its use from the test suite since it serves no useful purpose there. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1459786920-15961-1-git-send-email-berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05checkpatch: add target_ulong to typelistCédric Le Goater1-0/+1
In some occasions, a patch [1] can start with a hunk containing a simple type cast. At the time annotate_values() is run, the type is unknown and the cast type is misinterpreted as a identifier, resulting in an error if it is followed with a negative value: ERROR: spaces required around that '-' (ctx:WxV) It seems complex to catch all possible types in a cast expression. So, as a fallback solution, let's add some common qemu types to the typeList array. [1] http://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg06741.html Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Message-Id: <1459503606-31603-1-git-send-email-clg@fr.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05target-i386: assert that KVM_GET/SET_MSRS can set all requested MSRsPaolo Bonzini1-4/+30
This would have caught the bug in the previous patch. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05target-i386: do not pass MSR_TSC_AUX to KVM ioctls if CPUID bit is not setPaolo Bonzini1-0/+3
KVM does not let you read or write this MSR if the corresponding CPUID bit is not set. This in turn causes MSRs that come after MSR_TSC_AUX to be ignored by KVM_SET_MSRS. One visible symptom is that s3.flat from kvm-unit-tests fails with CPUs that do not have RDTSCP, because the SMBASE is not reset to 0x30000 after reset. Fixes: c9b8f6b6210847b4381c5b2ee172b1c7eb9985d6 Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05memory: fix segv on qemu_ram_free(block=0x0)Marc-André Lureau1-0/+4
Since f1060c55bf1377b4, the pointer is directly passed to qemu_ram_free(). However, on initialization failure, it may be called with a NULL pointer. Return immediately in this case. This fixes a SEGV when memory initialization failed, for example permission denied on open backing store /dev/hugepages, with -object memory-backend-file,mem-path=/dev/hugepages. Program received signal SIGSEGV, Segmentation fault. 0x00005555556e67e7 in qemu_ram_free (block=0x0) at /home/elmarco/src/qemu/exec.c:1775 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1459250451-29984-1-git-send-email-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05target-i386/kvm: Hyper-V VMBus hypercalls blank handlersAndrey Smetanin1-0/+12
Add Hyper-V VMBus hypercalls blank handlers which just returns error code - HV_STATUS_INVALID_HYPERCALL_CODE. This is required when the synthetic interrupt controller is active. Fixes: 50efe82c3c27195162dd8df273eadd77d8aecad3 Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Richard Henderson <rth@twiddle.net> CC: Eduardo Habkost <ehabkost@redhat.com> CC: "Andreas Färber" <afaerber@suse.de> CC: Marcelo Tosatti <mtosatti@redhat.com> CC: Roman Kagan <rkagan@virtuozzo.com> CC: Denis V. Lunev <den@openvz.org> CC: kvm@vger.kernel.org Message-Id: <1456309368-29769-2-git-send-email-asmetanin@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-05update Linux headers to 4.6Paolo Bonzini14-12/+140
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-31Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into ↵Peter Maydell1-7/+7
staging slirp updates # gpg: Signature made Thu 31 Mar 2016 00:08:38 BST using RSA key ID FB6B2F1D # gpg: Good signature from "Samuel Thibault <samuel.thibault@gnu.org>" # gpg: aka "Samuel Thibault <sthibault@debian.org>" # gpg: aka "Samuel Thibault <samuel.thibault@inria.fr>" # gpg: aka "Samuel Thibault <samuel.thibault@labri.fr>" # gpg: aka "Samuel Thibault <samuel.thibault@ens-lyon.org>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 900C B024 B679 31D4 0F82 304B D017 8C76 7D06 9EE6 # Subkey fingerprint: F632 74CD C630 0873 CB3D 29D9 E3E5 1CE8 FB6B 2F1D * remotes/thibault/tags/samuel-thibault: Fix ipv6 options according to documentation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-31Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into stagingPeter Maydell1-0/+2
# gpg: Signature made Wed 30 Mar 2016 21:51:01 BST using RSA key ID C0DE3057 # gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>" # gpg: aka "Jeffrey Cody <jeff@codyprime.org>" # gpg: aka "Jeffrey Cody <codyprime@gmail.com>" * remotes/cody/tags/block-pull-request: block/nfs: add missing #include "qemu/cutils.h" block/nfs: add missing #include "qapi/error.h" Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-31Fix ipv6 options according to documentationSamuel Thibault1-7/+7
The options names were fixed in the qapi layer, but not in the command-line options. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-03-30block/nfs: add missing #include "qemu/cutils.h"Stefan Hajnoczi1-0/+1
parse_uint_full() used to be included from qemu-common.h but was moved to qemu/cutils.h in commit f348b6d1a53e5271cf1c9f9acc4646b4b98c1771 ("util: move declarations out of qemu-common.h"). Cc: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1459341994-20567-3-git-send-email-stefanha@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-03-30block/nfs: add missing #include "qapi/error.h"Stefan Hajnoczi1-0/+1
error_setg() used to be included indirectly through qemu/osdep.h. Since commit da34e65cb4025728566d6504a99916f6e7e1dd6a ("include/qemu/osdep.h: Don't include qapi/error.h") it requires an explicit include. Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1459341994-20567-2-git-send-email-stefanha@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
2016-03-30Update version for v2.6.0-rc0 releasePeter Maydell1-1/+1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30Merge remote-tracking branch ↵Peter Maydell14-25/+620
'remotes/pmaydell/tags/pull-target-arm-20160330-1' into staging target-arm queue: * virt: fix the virtual power button by adding a modelled "key press for 100ms" device * various improvements to m25p80 flash devices * implement new QMP query-gic-capability command to let the management layer know what versions of GIC we support # gpg: Signature made Wed 30 Mar 2016 17:30:51 BST using RSA key ID 14360CDE # 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>" * remotes/pmaydell/tags/pull-target-arm-20160330-1: arm: implement query-gic-capabilities kvm: add kvm_device_supported() helper function arm: enhance kvm_arm_create_scratch_host_vcpu arm: qmp: add query-gic-capabilities interface block: m25p80: at25128a/at25256a models block: m25p80: n25q256a/n25q512a models block: m25p80: Implemented FSR register block: m25p80: Fast read and 4bytes commands block: m25p80: Dummy cycles for N25Q256/512 block: m25p80: Add configuration registers block: m25p80: 4byte address mode block: m25p80: Extend address mode block: m25p80: Widen flags variable block: m25p80: RESET_ENABLE and RESET_MEMORY commands block: m25p80: Removed unused variable ARM: Virt: Use gpio_key for power button hw/gpio: Add the emulation of gpio_key Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30arm: implement query-gic-capabilitiesPeter Xu1-1/+57
For emulated GIC capabilities, currently only gicv2 is supported. We need to add gicv3 in when emulated gicv3 ready. For KVM accelerated ARM VM, we detect the capability bits by creating a scratch VM. Signed-off-by: Peter Xu <peterx@redhat.com> Acked-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1458788142-17509-5-git-send-email-peterx@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30kvm: add kvm_device_supported() helper functionPeter Xu2-0/+24
This can be used when probing whether KVM support specific device. Here, a raw vmfd is used. Signed-off-by: Peter Xu <peterx@redhat.com> Acked-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1458788142-17509-4-git-send-email-peterx@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30arm: enhance kvm_arm_create_scratch_host_vcpuPeter Xu2-3/+18
Support passing NULL for the first parameter (with the same effect as passing an empty array) and for the third parameter (meaning that we should not attempt to init the vcpu). Signed-off-by: Peter Xu <peterx@redhat.com> Acked-by: Sergey Fedorov <serge.fdrv@gmail.com> Message-id: 1458788142-17509-3-git-send-email-peterx@redhat.com [PMM: tweaked commit message, comment] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30arm: qmp: add query-gic-capabilities interfacePeter Xu5-1/+100
This patch add "query-gic-capabilities" but does not implement it. The command is ARM-only. The command will return a list of GICCapability structs that describes all GIC versions that current QEMU and system support. Libvirt is possibly the first consumer of this new command. Before this patch, a libvirt user can successfully configure all kinds of GIC devices for ARM guests, no matter whether current QEMU/kernel supports them. If the specified GIC version/type is not supported, the user will get an ambiguous "QEMU boot failure" error when trying to start the VM. This is not user-friendly. With this patch, libvirt should be able to query which type (and which version) of GIC device is supported. Using this information, libvirt can warn the user during configuration of guests when specified GIC device type is not supported. Or better, we can just list those versions that we support, and filter out the unsupported ones. For example, if we got the query result: {"return": [{"emulated": false, "version": 3, "kernel": true}, {"emulated": true, "version": 2, "kernel": false}]} then it means that we support emulated GIC version 2 using: qemu-system-aarch64 -M virt,accel=tcg,gic-version=2 ... or KVM-accelerated GIC version 3 using: qemu-system-aarch64 -M virt,accel=kvm,gic-version=3 ... If we specify other explicit GIC versions rather than the above, QEMU will not be able to boot. The community is working on a more generic way to query these kinds of information about valid values of machine properties. However, due to the importance of supporting this specific use case, weecided to first implement this ad-hoc one; then when the generic method is ready, we can move on to that one smoothly. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 1458788142-17509-2-git-send-email-peterx@redhat.com [PMM: tweaked commit message a bit; monitor.o is CONFIG_SOFTMMU only] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: at25128a/at25256a modelsMarcin Krzeminski1-2/+13
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-12-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: n25q256a/n25q512a modelsMarcin Krzeminski1-1/+2
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-11-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Implemented FSR registerMarcin Krzeminski1-0/+15
Implements FSR register, it is used for busy waits. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-10-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Fast read and 4bytes commandsMarcin Krzeminski1-4/+46
Adds fast read and 4bytes commands family. This work is based on Pawel Lenkow patch from v1. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-9-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Dummy cycles for N25Q256/512Marcin Krzeminski1-3/+11
Use the setting from the volatile cfg register to correctly set the number of dummy cycles. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-8-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Add configuration registersMarcin Krzeminski1-0/+128
This patch adds both volatile and non volatile configuration registers and commands to allow modify them. It is needed for proper handling dummy cycles. Initialization of those registers and flash state has been included as well. Some of this registers are used by kernel. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Acked-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-7-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: 4byte address modeMarcin Krzeminski1-10/+33
This patch adds only 4byte address mode (does not cover dummy cycles). This mode is needed to access more than 16 MiB of flash. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-6-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Extend address modeMarcin Krzeminski1-0/+27
Extend address mode allows to switch flash 16 MiB banks, allowing user to access all flash sectors. This access mode is used by u-boot. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-5-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Widen flags variableMarcin Krzeminski1-1/+1
Extend the width of the flags variable to support the already existing (but unused) WR_1 flag, which is above the range of 8 bits. This allows support of EEPROM emulation which requires the WR_1 feature. Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-4-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: RESET_ENABLE and RESET_MEMORY commandsMarcin Krzeminski1-1/+40
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-3-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30block: m25p80: Removed unused variableMarcin Krzeminski1-2/+0
Signed-off-by: Marcin Krzeminski <marcin.krzeminski@nokia.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 1458719789-29868-2-git-send-email-marcin.krzeminski@nokia.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30ARM: Virt: Use gpio_key for power buttonShannon Zhao1-2/+5
There is a problem for power button that it will not work if an early system_powerdown request happens before guest gpio driver loads. Fix this problem by using gpio_key. Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Message-id: 1458221140-15232-3-git-send-email-zhaoshenglong@huawei.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30hw/gpio: Add the emulation of gpio_keyShannon Zhao3-0/+106
This will be used by ARM virt machine as a power button. Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Message-id: 1458221140-15232-2-git-send-email-zhaoshenglong@huawei.com [PMM: Use hyphen rather than underscore in type names; add a comment briefly describing what the device does] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30Merge remote-tracking branch 'remotes/lalrae/tags/mips-20160329-2' into stagingPeter Maydell18-79/+1623
MIPS patches 2016-03-29 Changes: * add initial MIPS CPS support * implement ITU block * implement MAAR # gpg: Signature made Wed 30 Mar 2016 09:27:01 BST using RSA key ID 0B29DA6B # gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>" * remotes/lalrae/tags/mips-20160329-2: (21 commits) target-mips: add MAAR, MAARI register target-mips: use CP0_CHECK for gen_m{f|t}hc0 hw/mips/cps: enable ITU for multithreading processors target-mips: make ITC Configuration Tags accessible to the CPU target-mips: check CP0 enabled for CACHE instruction also in R6 hw/mips: implement ITC Storage - Bypass View hw/mips: implement ITC Storage - P/V Sync and Try Views hw/mips: implement ITC Storage - Empty/Full Sync and Try Views hw/mips: implement ITC Storage - Control View hw/mips: implement ITC Configuration Tags and Storage Cells target-mips: enable CM GCR in MIPS64R6-generic CPU hw/mips_malta: add CPS to Malta board hw/mips_malta: move CPU creation to a separate function hw/mips_malta: remove redundant irq and clock init hw/mips_malta: remove CPUMIPSState from the write_bootloader() hw/mips/cps: create CPC block inside CPS hw/mips: add initial Cluster Power Controller support hw/mips/cps: create GCR block inside CPS hw/mips: add initial Global Config Register support target-mips: add CMGCRBase register ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30Merge remote-tracking branch ↵Peter Maydell2-2/+18
'remotes/berrange/tags/pull-qcrypto-2016-03-30-1' into staging Merge qcrypto fixes 2016/03/30 v1 # gpg: Signature made Wed 30 Mar 2016 14:59:19 BST using RSA key ID 15104FDF # gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" # gpg: aka "Daniel P. Berrange <berrange@redhat.com>" * remotes/berrange/tags/pull-qcrypto-2016-03-30-1: crypto: do an explicit check for nettle pbkdf functions Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30crypto: do an explicit check for nettle pbkdf functionsDaniel P. Berrange2-2/+18
Support for the PBKDF functions in nettle was not introduced until version 2.6. Some distros QEMU targets have older versions and thus lack PBKDF support. Address this by doing a check in configure for the desired function and then skipping compilation of the nettle-pbkdf.o module Reported-by: Wen Congyang <wency@cn.fujitsu.com> Tested-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-03-30Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell58-545/+4015
Block layer patches # gpg: Signature made Wed 30 Mar 2016 11:57:54 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (48 commits) iotests: Test qemu-img convert -S 0 behavior block/null-{co,aio}: Implement get_block_status() block/null-{co,aio}: Allow reading zeroes qemu-img: Fix preallocation with -S 0 for convert block: Remove bdrv_(set_)enable_write_cache() block: Remove BDRV_O_CACHE_WB block: Remove bdrv_parse_cache_flags() qemu-io: Use bdrv_parse_cache_mode() in reopen_f() block: Use bdrv_parse_cache_mode() in drive_init() raw: Support BDRV_REQ_FUA nbd: Support BDRV_REQ_FUA iscsi: Support BDRV_REQ_FUA block: Introduce bdrv_co_writev_flags() block/qapi: Use blk_enable_write_cache() block: Move enable_write_cache to BB level block: Handle flush error in bdrv_pwrite_sync() block: Always set writeback mode in blk_new_open() block: blockdev_init(): Call blk_set_enable_write_cache() explicitly xen_disk: Call blk_set_enable_write_cache() explicitly qemu-img: Call blk_set_enable_write_cache() explicitly ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into ↵Peter Maydell9-6/+773
staging # gpg: Signature made Wed 30 Mar 2016 02:07:15 BST using RSA key ID 398D6211 # gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@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: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211 * remotes/jasowang/tags/net-pull-request: Revert "e1000: fix hang of win2k12 shutdown with flood ping" e1000: Fixing interrupts pace. tests/test-filter-redirector: Add unit test for filter-redirector net/filter-mirror: implement filter-redirector net/filter-mirror: Change filter_mirror_send interface tests/test-filter-mirror:add filter-mirror unit test net/filter-mirror:Add filter-mirror Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-30iotests: Test qemu-img convert -S 0 behaviorMax Reitz3-0/+120
Passing -S 0 to qemu-img convert should result in all source data being copied to the output, even if that source data is known to be 0. The output image should therefore have exactly the same size on disk as an image which we explicitly filled with data. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-30block/null-{co,aio}: Implement get_block_status()Max Reitz1-0/+22
Signed-off-by: Max Reitz <mreitz@redhat.com> Acked-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-30block/null-{co,aio}: Allow reading zeroesMax Reitz1-0/+20
This is optional so that it does not impede the null block driver's performance unless this behavior is desired. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-30qemu-img: Fix preallocation with -S 0 for convertMax Reitz2-15/+17
When passing -S 0 to qemu-img convert, the target image is supposed to be fully allocated. Right now, this is not the case if the source image contains areas which bdrv_get_block_status() reports as being zero. This patch changes a zeroed area's status from BLK_ZERO to BLK_DATA before invoking convert_write() if -S 0 has been specified. In addition, the check whether convert_read() actually needs to do anything (basically only if the current area is a BLK_DATA area) is pulled out of that function to the caller. If -S 0 has been specified, zeroed areas need to be written as data to the output, thus they then have to be accounted when calculating the progress made. This patch changes the reference output for iotest 122; contrary to what it assumed, -S 0 really should allocate everything in the output, not just areas that are filled with zeros (as opposed to being zeroed). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-30block: Remove bdrv_(set_)enable_write_cache()Kevin Wolf4-20/+0
The only remaining users were block jobs (mirror and backup) which unconditionally enabled WCE on the BlockBackend of the target image. As these block jobs don't go through BlockBackend for their I/O requests, they aren't affected by this setting anyway but always get a writeback mode, so that call can be removed. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30block: Remove BDRV_O_CACHE_WBKevin Wolf11-109/+34
The previous patches have successively made blk->enable_write_cache the true source for the information whether a writethrough mode must be implemented. The corresponding BDRV_O_CACHE_WB is only useless baggage we're carrying around, so now's the time to remove it. At the same time, we remove the 'cache.writeback' option parsing on the BDS level as the only effect was setting the BDRV_O_CACHE_WB flag. This change requires test cases that explicitly enabled the option to drop it. Other than that and the change of the error message when writethrough is enabled on the BDS level (from "Can't set writethrough mode" to "doesn't support the option"), there should be no change in behaviour. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30block: Remove bdrv_parse_cache_flags()Kevin Wolf2-23/+7
All users are converted to bdrv_parse_cache_mode() now. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30qemu-io: Use bdrv_parse_cache_mode() in reopen_f()Kevin Wolf4-15/+21
We must forbid changing the WCE flag in bdrv_reopen() in the same patch, as otherwise the behaviour would change so that the flag takes precedence over the explicitly specified option. The correct value of the WCE flag depends on the BlockBackend user (e.g. guest device) and isn't a decision that the QMP client makes, so this change is what we want. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30block: Use bdrv_parse_cache_mode() in drive_init()Kevin Wolf1-2/+3
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30raw: Support BDRV_REQ_FUAKevin Wolf1-3/+14
Pass through the FUA flag to the lower layer so that the separate flush can be saved in practically relevant cases where a (raw) format driver sits on top of the protocol driver. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30nbd: Support BDRV_REQ_FUAKevin Wolf3-8/+34
The NBD server already used to send a FUA flag when the writethrough mode was set. This code was a remnant from the times where protocol drivers actually had to implement writethrough modes. Since nowadays the block layer sends flushes in writethrough mode and non-root nodes are always writeback, this was mostly dead code - only mostly because if NBD was configured to be used without a format, we sent _both_ FUA and an explicit flush afterwards, which makes the code not technically dead, but useless overhead. This patch changes the code so that the block layer's FUA flag is recognised and translated into a NBD FUA flag. The additional flush is avoided now. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30iscsi: Support BDRV_REQ_FUAKevin Wolf1-16/+14
This replaces the existing hack in the iscsi driver that sent the FUA bit in writethrough mode and ignored the following flush in order to optimise the number of roundtrips (see commit 73b5394e). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30block: Introduce bdrv_co_writev_flags()Kevin Wolf2-1/+13
This function will allow drivers to implement BDRV_REQ_FUA natively instead of sending a separate flush after the write. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2016-03-30block/qapi: Use blk_enable_write_cache()Kevin Wolf5-16/+60
Now that WCE is handled on the BlockBackend level, the flag is meaningless for BDSes. As the schema requires us to fill the field, we return an enabled write cache for them. Note that this means that querying the BlockBackend name may return writethrough as the cache information, whereas querying the node-name of the root of that same BlockBackend will return writeback. This may appear odd at first, but it actually makes sense because it correctly repesents the layer that implements the WCE handling. This becomes more apparent when you consider nodes that are the root node of multiple BlockBackends, where each BB can have its own WCE setting. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 23:32:53 +0000