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2021-04-20qga: fix guest-get-disks regressionMarc-André Lureau
Commit 54aa3de72 ("qapi: Use QAPI_LIST_PREPEND() where possible") inadvertently removed the has_dependencies from the partition disk info, resulting in empty list being returned. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1950833 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 20210420125831.233092-1-marcandre.lureau@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-16qga: Add spaces around operatorAlexChen
Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: AlexChen <alex.chen@huawei.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> *fix 80+ char violation while we're here *fix w32 build breakage from changing INVALID_SET_FILE_POINTER definition from a cast to a subtraction Signed-off-by: Michael Roth <michael.roth@amd.com>
2021-03-16qga: Correct loop count in qmp_guest_get_vcpus()Lin Ma
The guest-get-vcpus returns incorrect vcpu info in case we hotunplug vcpus(not the last one). e.g.: A VM has 4 VCPUs: cpu0 + 3 hotunpluggable online vcpus(cpu1, cpu2 and cpu3). Hotunplug cpu2, Now only cpu0, cpu1 and cpu3 are present & online. ./qmp-shell /tmp/qmp-monitor.sock (QEMU) query-hotpluggable-cpus {"return": [ {"props": {"core-id": 0, "thread-id": 0, "socket-id": 3}, "vcpus-count": 1, "qom-path": "/machine/peripheral/cpu3", "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 2}, "vcpus-count": 1, "qom-path": "/machine/peripheral/cpu2", "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 1}, "vcpus-count": 1, "qom-path": "/machine/peripheral/cpu1", "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 0}, "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]", "type": "host-x86_64-cpu"} ]} (QEMU) device_del id=cpu2 {"return": {}} (QEMU) query-hotpluggable-cpus {"return": [ {"props": {"core-id": 0, "thread-id": 0, "socket-id": 3}, "vcpus-count": 1, "qom-path": "/machine/peripheral/cpu3", "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 2}, "vcpus-count": 1, "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 1}, "vcpus-count": 1, "qom-path": "/machine/peripheral/cpu1", "type": "host-x86_64-cpu"}, {"props": {"core-id": 0, "thread-id": 0, "socket-id": 0}, "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]", "type": "host-x86_64-cpu"} ]} Before: ./qmp-shell -N /tmp/qmp-ga.sock Welcome to the QMP low-level shell! Connected (QEMU) guest-get-vcpus {"return": [ {"online": true, "can-offline": false, "logical-id": 0}, {"online": true, "can-offline": true, "logical-id": 1}]} After: ./qmp-shell -N /tmp/qmp-ga.sock Welcome to the QMP low-level shell! Connected (QEMU) guest-get-vcpus {"return": [ {"online": true, "can-offline": false, "logical-id": 0}, {"online": true, "can-offline": true, "logical-id": 1}, {"online": true, "can-offline": true, "logical-id": 3}]} Signed-off-by: Lin Ma <lma@suse.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> *fix build breakage by using PRId64 for sscanf Signed-off-by: Michael Roth <michael.roth@amd.com>
2021-03-05qga: Utilize QAPI_LIST_APPEND in qmp_guest_network_get_interfacesEric Blake
I found another spot that can benefit from using our macros instead of open-coding qapi list creation. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20210205171634.1491258-1-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2021-01-28qapi: More complex uses of QAPI_LIST_APPENDEric Blake
These cases require a bit more thought to review; in each case, the code was appending to a list, but not with a FOOList **tail variable. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210113221013.390592-6-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Flawed change to qmp_guest_network_get_interfaces() dropped] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2021-01-28qapi: Use QAPI_LIST_APPEND in trivial casesEric Blake
The easiest spots to use QAPI_LIST_APPEND are where we already have an obvious pointer to the tail of a list. While at it, consistently use the variable name 'tail' for that purpose. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20210113221013.390592-5-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2021-01-01Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20201222' ↵Peter Maydell
into staging Further s390x updates: - enhance the s390 devices acceptance test - tcg: improve carry computation - qga: send the ccw address with the fsinfo data - fixes for protected virtualisation and zpci # gpg: Signature made Tue 22 Dec 2020 10:37:34 GMT # gpg: using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF # gpg: issuer "cohuck@redhat.com" # gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown] # gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full] # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full] # gpg: aka "Cornelia Huck <cohuck@kernel.org>" [unknown] # gpg: aka "Cornelia Huck <cohuck@redhat.com>" [unknown] # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * remotes/cohuck-gitlab/tags/s390x-20201222: tests/acceptance: Add a test with the Fedora 31 kernel and initrd s390x/pci: Fix memory_region_access_valid call s390x/pci: fix pcistb length tests/acceptance: Test the virtio-balloon device on s390x tests/acceptance: Test virtio-rng on s390 via /dev/hwrng tests/acceptance: Extract the code to clear dmesg and wait for CRW reports tests/acceptance: test hot(un)plug of ccw devices target/s390x: Improve SUB LOGICAL WITH BORROW target/s390x: Improve cc computation for SUBTRACT LOGICAL target/s390x: Improve ADD LOGICAL WITH CARRY target/s390x: Improve cc computation for ADD LOGICAL qga/commands-posix: Send CCW address on s390x with the fsinfo data MAINTAINERS: move my git tree to gitlab s390x: pv: Fence additional unavailable SCLP facilities for PV guests Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-21qga/commands-posix: Send CCW address on s390x with the fsinfo dataThomas Huth
We need the CCW address on the libvirt side to correctly identify the disk, so add this information to the GuestDiskAddress on s390x. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Michael Roth <michael.roth@amd.com> Message-Id: <20201127082353.448251-1-thuth@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-12-19qapi: Use QAPI_LIST_PREPEND() where possibleEric Blake
Anywhere we create a list of just one item or by prepending items (typically because order doesn't matter), we can use QAPI_LIST_PREPEND(). But places where we must keep the list in order by appending remain open-coded until later patches. Note that as a side effect, this also performs a cleanup of two minor issues in qga/commands-posix.c: the old code was performing new = g_malloc0(sizeof(*ret)); which 1) is confusing because you have to verify whether 'new' and 'ret' are variables with the same type, and 2) would conflict with C++ compilation (not an actual problem for this file, but makes copy-and-paste harder). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20201113011340.463563-5-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> [Straightforward conflicts due to commit a8aa94b5f8 "qga: update schema for guest-get-disks 'dependents' field" and commit a10b453a52 "target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c" resolved. Commit message tweaked.] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-11-16qga: update schema for guest-get-disks 'dependents' fieldMichael Roth
The recently-added 'guest-get-disk' command returns a list of GuestDiskInfo entries, which in turn have a 'dependents' field which lists devices these entries are dependent upon. Thus, 'dependencies' is a better name for this field. Address this by renaming the field accordingly. Additionally, 'dependents' is specified as non-optional, even though it's not implemented for w32. This is misleading, since it gives users the impression that a particular disk might not have dependencies, when in reality that information is simply not known to the guest agent. Address this by making 'dependents' an optional field, and only marking it as in-use when the facilities to obtain this information are available to the guest agent. Cc: Eric Blake <eblake@redhat.com> Cc: Tomáš Golembiovský <tgolembi@redhat.com> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
2020-11-09qga: fix missing closedir() in qmp_guest_get_disks()Michael Roth
We opendir("/sys/block") at the beginning of the function, but we never close it prior to returning. Fixes: Coverity CID 1436130 Fixes: fed3956429d5 ("qga: add implementation of guest-get-disks for Linux") Reported-by: Peter Maydell <peter.maydell@linaro.org> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
2020-11-02qga: add implementation of guest-get-disks for LinuxTomáš Golembiovský
The command lists all disks (real and virtual) as well as disk partitions. For each disk the list of dependent disks is also listed and /dev path is used as a handle so it can be matched with "name" field of other returned disk entries. For disk partitions the "dependents" list is populated with the the parent device for easier tracking of hierarchy. Example output: { "return": [ ... { "name": "/dev/dm-0", "partition": false, "dependents": [ "/dev/sda2" ], "alias": "luks-7062202e-5b9b-433e-81e8-6628c40da9f7" }, { "name": "/dev/sda2", "partition": true, "dependents": [ "/dev/sda" ] }, { "name": "/dev/sda", "partition": false, "address": { "serial": "SAMSUNG_MZ7LN512HCHP-000L1_S1ZKNXAG822493", "bus-type": "sata", ... "dev": "/dev/sda", "target": 0 }, "dependents": [] }, ... ] } Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> *add missing stub for !defined(CONFIG_FSFREEZE) *remove unused deps_dir variable Signed-off-by: Michael Roth <michael.roth@amd.com>
2020-11-02qga: add command guest-get-disksTomáš Golembiovský
Add API and stubs for new guest-get-disks command. The command guest-get-fsinfo can be used to list information about disks and partitions but it is limited only to mounted disks with filesystem. This new command should allow listing information about disks of the VM regardles whether they are mounted or not. This can be usefull for management applications for mapping virtualized devices or pass-through devices to device names in the guest OS. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
2020-09-16util: rename qemu_open() to qemu_open_old()Daniel P. Berrangé
We want to introduce a new version of qemu_open() that uses an Error object for reporting problems and make this it the preferred interface. Rename the existing method to release the namespace for the new impl. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-09-12qga: add command guest-get-devices for reporting VirtIO devicesTomáš Golembiovský
Add command for reporting devices on Windows guest. The intent is not so much to report the devices but more importantly the driver (and its version) that is assigned to the device. This gives caller the information whether VirtIO drivers are installed and/or whether inadequate driver is used on a device (e.g. QXL device with base VGA driver). Example: [ { "driver-date": "2019-08-12", "driver-name": "Red Hat VirtIO SCSI controller", "driver-version": "100.80.104.17300", "address": { "type": "pci", "data": { "device-id": 4162, "vendor-id": 6900 } } }, ... ] Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> *remove redundant glib autoptr declaration for GuestDeviceInfo Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-09-12qga/commands-posix: Support fsinfo for non-PCI virtio devices, tooThomas Huth
QEMU on s390x uses virtio via channel I/O instead of PCI by default. Add a function to detect and provide information for virtio-scsi and virtio-block devices here, too. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-09-12qga/commands-posix: Move the udev code from the pci to the generic functionThomas Huth
The libudev-related code is independent from the other pci-related code and can be re-used for non-pci devices (like ccw devices on s390x). Thus move this part to the generic function. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1755075 Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-09-12qga/commands-posix: Rework build_guest_fsinfo_for_real_device() functionThomas Huth
We are going to support non-PCI devices soon. For this we need to split the generic GuestDiskAddress and GuestDiskAddressList memory allocation and list chaining into a separate function first. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-07-10error: Eliminate error_propagate() manuallyMarkus Armbruster
When all we do with an Error we receive into a local variable is propagating to somewhere else, we can just as well receive it there right away. The previous two commits did that for sufficiently simple cases with Coccinelle. Do it for several more manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20200707160613.848843-37-armbru@redhat.com>
2020-07-02qga: Plug unlikely memory leak in guest-set-memory-blocksMarkus Armbruster
transfer_memory_block() leaks an Error object when reading file /sys/devices/system/memory/memory<INDEX>/state fails with errno other than ENOENT, and @sys2memblk is false, i.e. when the state file exists but cannot be read (seems quite unlikely), and this is guest-set-memory-blocks, not guest-get-memory-blocks. Plug the leak. Fixes: bd240fca42d5f072fb758a71720d9de9990ac553 Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Cc: Hailiang Zhang <zhang.zhanghailiang@huawei.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Message-Id: <20200630090351.1247703-9-armbru@redhat.com>
2020-04-29qga: Fix qmp_guest_get_memory_blocks() error handlingMarkus Armbruster
The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. qmp_guest_get_memory_blocks() passes &local_err to transfer_memory_block() in a loop. If this fails in more than one iteration, it can trip error_setv()'s assertion. Fix it to break the loop. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200422130719.28225-14-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2020-04-15qga: Extract qmp_guest_file_read() to common commands.cPhilippe Mathieu-Daudé
Extract the common code shared by both POSIX/Win32 implementations. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-04-15qga: Extract guest_file_handle_find() to commands-common.hPhilippe Mathieu-Daudé
As we are going to reuse this method, declare it in common header. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-04-04qga/commands-posix: fix use after free of local_errVladimir Sementsov-Ogievskiy
local_err is used several times in guest_suspend(). Setting non-NULL local_err will crash, so let's zero it after freeing. Also fix possible leak of local_err in final if(). Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200324153630.11882-7-vsementsov@virtuozzo.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-12-18qga: rename Error ** parameter to more common errpVladimir Sementsov-Ogievskiy
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20191205174635.18758-13-vsementsov@virtuozzo.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2019-12-18qga: Fix guest-get-fsinfo error API violationsMarkus Armbruster
build_guest_fsinfo_for_virtual_device() dereferences @errp when build_guest_fsinfo_for_device() fails. That's wrong; see the big comment in error.h. Introduced in commit 46d4c5723e "qga: Add guest-get-fsinfo command". No caller actually passes null. Fix anyway: splice in a local Error *err, and error_propagate(). Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20191204093625.14836-10-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2019-12-14qga: fence guest-set-time if hwclock not availableCornelia Huck
The Posix implementation of guest-set-time invokes hwclock to set/retrieve the time to/from the hardware clock. If hwclock is not available, the user is currently informed that "hwclock failed to set hardware clock to system time", which is quite misleading. This may happen e.g. on s390x, which has a different timekeeping concept anyway. Let's check for the availability of the hwclock command and return QERR_UNSUPPORTED for guest-set-time if it is not available. Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Message-Id: <20191205115350.18713-1-cohuck@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2019-11-04qga: Add "guest-get-memory-block-info" to blacklistBasil Salman
Memory block commands are only supported for linux with sysfs, "guest-get-memory-block-info" was not in blacklist for other cases. Reported on: https://bugzilla.redhat.com/show_bug.cgi?id=1751431 Signed-off-by: Basil Salman <bsalman@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2019-06-12Include qemu-common.h exactly where neededMarkus Armbruster
No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
2019-01-11qemu/queue.h: simplify reverse access to QTAILQPaolo Bonzini
The new definition of QTAILQ does not require passing the headname, remove it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-18error: Remove NULL checks on error_propagate() callsMarkus Armbruster
Patch created mechanically by rerunning: $ spatch --sp-file scripts/coccinelle/error_propagate_null.cocci \ --macro-file scripts/cocci-macro-file.h \ --dir . --in-place Whitespace tidied up manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20181213173113.11211-1-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-10-31qga: linux: return disk device in guest-get-fsinfoTomáš Golembiovský
Report device node of the disk on Linux (e.g. "/dev/sda2"). Requirs libudev. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-10-31qga: linux: report disk serial numberTomáš Golembiovský
Add reporting of disk serial number on Linux guests. The feature depends on libudev. Example: { "name": "dm-2", "mountpoint": "/", ... "disk": [ { "serial": "SAMSUNG_MZ7LN512HCHP-000L1_S1ZKNXAG822493", ... } ], } Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-10-30qga: ignore non present cpus when handling qmp_guest_get_vcpus()Igor Mammedov
If VM has VCPUs plugged sparselly (for example a VM started with 3 VCPUs (cpu0, cpu1 and cpu2) and then cpu1 was hotunplugged so only cpu0 and cpu2 are present), QGA will rise a error error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': open("/sys/devices/system/cpu/cpu1/"): No such file or directory when virsh vcpucount FOO --guest is executed. Fix it by ignoring non present CPUs when fetching CPUs status from sysfs. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-16qga: fix file descriptor leakPaolo Bonzini
The file descriptor for /sys/power/state was never closed. Reported by Coverity. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-16qga: fix 'driver' leak in guest-get-fsinfoMarc-André Lureau
'driver' is leaked when the loop is not broken. Leak introduced by commit 743c71d03c20d64f2bae5fba6f26cdf5e4b1bda6, spotted by ASAN. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: removing bios_supports_modeDaniel Henrique Barboza
bios_support_mode verifies if the guest has support for a certain suspend mode but it doesn't inform back which suspend tool provides it. The caller, guest_suspend, executes all suspend strategies in order again. After adding systemd suspend support, bios_support_mode now will verify for support for systemd, then pmutils, then Linux sys state file. In a worst case scenario where both systemd and pmutils isn't supported but Linux sys state is: - bios_supports_mode will check for systemd, then pmutils, then Linux sys state. It will tell guest_suspend that there is support, but it will not tell who provides it; - guest_suspend will try to execute (and fail) systemd suspend, then pmutils suspend, to only then use the Linux sys suspend. The time spent executing systemd and pmutils suspend was wasted and could be avoided, but only bios_support_mode knew it but didn't inform it back. A quicker approach is to nuke bios_supports_mode and control whether we found support at all with a bool flag inside guest_suspend. guest_suspend will search for suspend support and execute it as soon as possible. If the a given suspend mechanism fails, continue to the next. If no suspend support is found, the "not supported" message is still being sent back to the user. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: systemd hibernate/suspend/hybrid-sleep supportDaniel Henrique Barboza
pmutils isn't being supported by newer OSes like Fedora 27 or Mint. This means that the only suspend option QGA offers for these guests are writing directly into the Linux sys state file. This also means that QGA also loses the ability to do hybrid suspend in those guests - this suspend mode is only available when using pmutils. Newer guests can use systemd facilities to do all the suspend types QGA supports. The mapping in comparison with pmutils is: - pm-hibernate -> systemctl hibernate - pm-suspend -> systemctl suspend - pm-suspend-hybrid -> systemctl hybrid-sleep To discover whether systemd supports these functions, we inspect the status of the services that implements them. With this patch, we can offer hybrid suspend again for newer guests that do not have pmutils support anymore. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: removing switch statements, adding run_process_childDaniel Henrique Barboza
This is a cleanup of the resulting code after detaching pmutils and Linux sys state file logic: - remove the SUSPEND_MODE_* macros and use an enumeration instead. At the same time, drop the switch statements at the start of each function and use the enumeration index to get the right binary/argument; - create a new function called run_process_child(). This function uses g_spawn_sync() to execute a shell command, returning the exit code. This is a common operation in the pmutils functions and will be used in the systemd implementation as well, so this function will avoid code repetition. There are more places inside commands-posix.c where this new run_process_child function can also be used, but one step at a time. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> *check/propagate local_err before setting errp directly Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: guest_suspend: decoupling pm-utils and sys logicDaniel Henrique Barboza
Following the same logic of the previous patch, let's also decouple the suspend logic from guest_suspend into specialized functions, one for each strategy we support at this moment. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: bios_supports_mode: decoupling pm-utils and sys logicDaniel Henrique Barboza
In bios_supports_mode there is a verification to assert if the chosen suspend mode is supported by the pmutils tools and, if not, we see if the Linux sys state files supports it. This verification is done in the same function, one after the other, and it works for now. But, when adding a new suspend mechanism that will not necessarily follow the same return 0 or 1 logic of pmutils, this code will be hard to deal with. This patch decouple the two existing logics into their own functions, pmutils_supports_mode and linux_sys_state_supports_mode, which in turn are used inside bios_support_mode. The existing logic is kept but now it's easier to extend it. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: refactoring qmp_guest_suspend_* functionsDaniel Henrique Barboza
To be able to add new suspend mechanisms we need to detach the existing QMP functions from the current implementation specifics. At this moment we have functions such as qmp_guest_suspend_ram calling bios_suspend_mode and guest_suspend passing the pmutils command and arguments as parameters. This patch removes this logic from the QMP functions, moving them to the respective functions that will have to deal with which binary to use. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qemu-ga: make get-fsinfo work over pci bridgesMarc-André Lureau
Iterate over the PCI bridges to lookup the PCI device associated with the block device. This allows to lookup the driver under the following syspath: /sys/devices/pci0000:00/0000:00:02.2/0000:03:00.0/virtio2/block/vda/vda3 It also works with an "old-style" Q35 libvirt hierarchy: root complex -> DMI-PCI bridge -> PCI-PCI bridge -> virtio controller, ex: /sys/devices/pci0000:00/0000:00:03.0/0000:01:01.0/0000:02:01.0/virtio1/block/vda/vda3 The setup can be reproduced with the following qemu command line (Thanks Marcel for help): qemu-system-x86_64 -M q35 \ -device i82801b11-bridge,id=dmi2pci_bridge,bus=pcie.0 -device pci-bridge,id=pci_bridge,bus=dmi2pci_bridge,addr=0x1,chassis_nr=1 -device virtio-blk-pci,scsi=off,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1,bus=pci_bridge,addr=0x1 For consistency with other syspath-related debug messages, replace a \"%s\" in the message with '%s'. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1567041 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: add mountpoint usage info to GuestFilesystemInfoChen Hanxiao
This patch adds support for getting the usage of mounted filesystem. The usage of fs stored as used_bytes and total_bytes. It's very useful when we try to monitor guest's filesystem. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Cc: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: check bytes count read by guest-file-readPrasad J Pandit
While reading file content via 'guest-file-read' command, 'qmp_guest_file_read' routine allocates buffer of count+1 bytes. It could overflow for large values of 'count'. Add check to avoid it. Reported-by: Fakhri Zulkifli <mohdfakhrizulkifli@gmail.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Cc: qemu-stable@nongnu.org Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03qga: unset frozen state if no mount points are frozenChen Hanxiao
If we set mountpoints to qmp_guest_fsfreeze_freeze_list, we may got nothing to freeze as all mountpoints are not valid. So call ga_unset_frozen in this senario. Also, if we return 0 frozen fs, there is no need to call guest-fsfreeze-thaw. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-06-01qga: use local path for local headersMichael S. Tsirkin
When pulling in headers that are in the same directory as the C file (as opposed to one in include/), we should use its relative path, without a directory. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-03-06use g_path_get_basename instead of basenameJulia Suvorova
basename(3) and dirname(3) modify their argument and may return pointers to statically allocated memory which may be overwritten by subsequent calls. g_path_get_basename and g_path_get_dirname have no such issues, and therefore more preferable. Signed-off-by: Julia Suvorova <jusual@mail.ru> Message-Id: <1519888086-4207-1-git-send-email-jusual@mail.ru> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-02qapi: Move qapi-schema.json to qapi/, rename generated filesMarkus Armbruster
Move qapi-schema.json to qapi/, so it's next to its modules, and all files get generated to qapi/, not just the ones generated for modules. Consistently name the generated files qapi-MODULE.EXT: qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch]. This gets rid of the temporary hacks in scripts/qapi/commands.py, scripts/qapi/events.py, and scripts/qapi/common.py. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-28-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> [eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain] Signed-off-by: Eric Blake <eblake@redhat.com>
2018-02-10qga: use ARRAY_SIZE macroPhilippe Mathieu-Daudé
Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-02 19:59:03 +0000