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2014-08-12trace: [tcg] Define TCG tracing helper routinesLluís Vilanova
Generates file "trace/generated-helpers.c" with TCG helper definitions to trace events in guest code at execution time. The helpers ('helper_trace_${event}_exec_proxy') cast the TCG-compatible native argument types to their original types (as defined in "trace-events") and call the tracing routine ('trace_${event}_exec'). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: [tcg] Declare TCG tracing helper routinesLluís Vilanova
Generates file "trace/generated-helpers.h" with TCG helper declarations to trace events in guest code at execution time ('trace_${event}_exec_proxy'). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: [tcg] Add 'tcg' event propertyLluís Vilanova
Transforms event: tcg name(...) "...", "..." into two internal events: tcg-trans name_trans(...) "..." tcg-exec name_exec(...) "..." Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: [tcg] Argument type transformation machineryLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: [tcg] Argument type transformation rulesLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: [tcg] Add documentationLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: install simpletrace SystemTap tapsetStefan Hajnoczi
The simpletrace SystemTap tapset outputs simpletrace binary traces for SystemTap probes. This is useful because SystemTap has no default way to format or store traces. The simpletrace SystemTap tapset provides an easy way to store traces. The simpletrace.py tool or custom Python scripts using the simpletrace.py API can analyze SystemTap these traces: $ ./configure --enable-trace-backends=dtrace ... $ make && make install $ stap -e 'probe qemu.system.x86_64.simpletrace.* {}' \ -c qemu-system-x86_64 >/tmp/trace.out $ scripts/simpletrace.py --no-header trace-events /tmp/trace.out g_malloc 4.531 pid=15519 size=0xb ptr=0x7f8639c10470 g_malloc 3.264 pid=15519 size=0x300 ptr=0x7f8639c10490 g_free 5.155 pid=15519 ptr=0x7f8639c0f7b0 Note that, unlike qemu-system-x86_64.stp and qemu-system-x86_64.stp-installed, only one file is needed since the simpletrace SystemTap tapset does not reference the QEMU binary by path. Therefore it doesn't matter whether the QEMU binary is installed or not. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12simpletrace: add simpletrace.py --no-header optionStefan Hajnoczi
It can be useful to read simpletrace files that have no header. For example, a ring buffer may not have a header record but can still be processed if the user is sure the file format version is compatible. $ scripts/simpletrace.py --no-header trace-events trace-file Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: add tracetool simpletrace_stap formatStefan Hajnoczi
This new tracetool "format" generates a SystemTap .stp file that outputs simpletrace binary trace data. In contrast to simpletrace or ftrace, SystemTap does not define its own trace format. All output from SystemTap is generated by .stp files. This patch lets us generate a .stp file that outputs in the simpletrace binary format. This makes it possible to reuse simpletrace.py to analyze traces recorded using SystemTap. The simpletrace binary format is especially useful for long-running traces like flight-recorder mode where string formatting can be expensive. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-12trace: extract stap_escape() function for reuseStefan Hajnoczi
SystemTap reserved words sometimes conflict with QEMU variable names. We escape them to prevent conflicts. Move escaping into its own function so the next patch can reuse it. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-08Merge remote-tracking branch 'remotes/mdroth/qga-pull-2014-08-08' into stagingPeter Maydell
* remotes/mdroth/qga-pull-2014-08-08: qga: Disable unsupported commands by default qga: Add guest-get-fsinfo command qga: Add guest-fsfreeze-freeze-list command Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-07qga: Disable unsupported commands by defaultTomoki Sekiyama
Currently management softwares cannot know whether a qemu-ga command is supported or not on the running platform until they actually execute it. This patch disables unsupported commands at launch time of qemu-ga, so that management softwares can check whether they are supported from 'enabled' property of the result from 'guest-info' command. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07qga: Add guest-get-fsinfo commandTomoki Sekiyama
Add command to get mounted filesystems information in the guest. The returned value contains a list of mountpoint paths and corresponding disks info such as disk bus type, drive address, and the disk controllers' PCI addresses, so that management layer such as libvirt can resolve the disk backends. For example, when `lsblk' result is: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdb 8:16 0 1G 0 disk `-sdb1 8:17 0 1024M 0 part `-vg0-lv0 253:1 0 1.4G 0 lvm /mnt/test sdc 8:32 0 1G 0 disk `-sdc1 8:33 0 512M 0 part `-vg0-lv0 253:1 0 1.4G 0 lvm /mnt/test vda 252:0 0 25G 0 disk `-vda1 252:1 0 25G 0 part / where sdb is a SCSI disk with PCI controller 0000:00:0a.0 and ID=1, sdc is an IDE disk with PCI controller 0000:00:01.1, and vda is a virtio-blk disk with PCI device 0000:00:06.0, guest-get-fsinfo command will return the following result: {"return": [{"name":"dm-1", "mountpoint":"/mnt/test", "disk":[ {"bus-type":"scsi","bus":0,"unit":1,"target":0, "pci-controller":{"bus":0,"slot":10,"domain":0,"function":0}}, {"bus-type":"ide","bus":0,"unit":0,"target":0, "pci-controller":{"bus":0,"slot":1,"domain":0,"function":1}}], "type":"xfs"}, {"name":"vda1", "mountpoint":"/", "disk":[ {"bus-type":"virtio","bus":0,"unit":0,"target":0, "pci-controller":{"bus":0,"slot":6,"domain":0,"function":0}}], "type":"ext4"}]} In Linux guest, the disk information is resolved from sysfs. So far, it only supports virtio-blk, virtio-scsi, IDE, SATA, SCSI disks on x86 hosts, and "disk" parameter may be empty for unsupported disk types. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> *updated schema to report 2.2 as initial supported version Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07qga: Add guest-fsfreeze-freeze-list commandTomoki Sekiyama
If an array of mount point paths is specified as 'mountpoints' argument of guest-fsfreeze-freeze-list, qemu-ga will only freeze the file systems mounted on specified paths in Linux guests. Otherwise, it works as the same way as guest-fsfreeze-freeze. This would be useful when the host wants to create partial disk snapshots. Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com> Reviewed-by: Eric Blake <eblake@redhat.com> *updated schema to report 2.2 as initial supported version Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2014-08-07Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
KVM changes include a MIPS patch and the testdev backend used by the ARM kvm-unit-tests. icount include the first part of reverse execution and Sebastian Tanase's patches to slow down -icount execution to the desired speed of the target. v1->v2: fix dump_drift_info to print nothing outside icount mode, and to compile on 32-bit architectures # gpg: Signature made Thu 07 Aug 2014 14:09:58 BST using RSA key ID 9B4D86F2 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: target-mips: Ignore unassigned accesses with KVM monitor: Add drift info to 'info jit' cpu-exec: Print to console if the guest is late cpu-exec: Add sleeping algorithm icount: Add align option to icount icount: Add QemuOpts for icount icount: Fix virtual clock start value on ARM timer: add cpu_icount_to_ns function. migration: migrate icount fields. icount: put icount variables into TimerState. backends: Introduce chr-testdev Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-07target-mips: Ignore unassigned accesses with KVMJames Hogan
MIPS registers an unassigned access handler which raises a guest bus error exception. However this causes QEMU to crash when KVM is enabled as it isn't called from the main execution loop so longjmp() gets called without a corresponding setjmp(). Until the KVM API can be updated to trigger a guest exception in response to an MMIO exit, prevent the bus error exception being raised from mips_cpu_unassigned_access() if KVM is enabled. The check is at run time since the do_unassigned_access callback is initialised before it is known whether KVM will be enabled. The problem can be triggered with Malta emulation by making the guest write to the reset region at physical address 0x1bf00000, since it is marked read-only which is treated as unassigned for writes. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Cc: Sanjay Lal <sanjayl@kymasys.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-07monitor: Add drift info to 'info jit'Sebastian Tanase
Show in 'info jit' the current delay between the host clock and the guest clock. In addition, print the maximum advance and delay of the guest compared to the host. Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-07Merge remote-tracking branch ↵Peter Maydell
'remotes/awilliam/tags/vfio-pci-for-qemu-20140805.0' into staging VFIO patches: Fix MSI-X vector expansion, remove MSI/X message caching # gpg: Signature made Tue 05 Aug 2014 20:25:57 BST using RSA key ID 3BB08B22 # gpg: Can't check signature: public key not found * remotes/awilliam/tags/vfio-pci-for-qemu-20140805.0: vfio: Don't cache MSIMessage vfio: Fix MSI-X vector expansion Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-06cpu-exec: Print to console if the guest is lateSebastian Tanase
If the align option is enabled, we print to the user whenever the guest clock is behind the host clock in order for he/she to have a hint about the actual performance. The maximum print interval is 2s and we limit the number of messages to 100. If desired, this can be changed in cpu-exec.c Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06cpu-exec: Add sleeping algorithmSebastian Tanase
The goal is to sleep qemu whenever the guest clock is in advance compared to the host clock (we use the monotonic clocks). The amount of time to sleep is calculated in the execution loop in cpu_exec. At first, we tried to approximate at each for loop the real time elapsed while searching for a TB (generating or retrieving from cache) and executing it. We would then approximate the virtual time corresponding to the number of virtual instructions executed. The difference between these 2 values would allow us to know if the guest is in advance or delayed. However, the function used for measuring the real time (qemu_clock_get_ns(QEMU_CLOCK_REALTIME)) proved to be very expensive. We had an added overhead of 13% of the total run time. Therefore, we modified the algorithm and only take into account the difference between the 2 clocks at the begining of the cpu_exec function. During the for loop we try to reduce the advance of the guest only by computing the virtual time elapsed and sleeping if necessary. The overhead is thus reduced to 3%. Even though this method still has a noticeable overhead, it no longer is a bottleneck in trying to achieve a better guest frequency for which the guest clock is faster than the host one. As for the the alignement of the 2 clocks, with the first algorithm the guest clock was oscillating between -1 and 1ms compared to the host clock. Using the second algorithm we notice that the guest is 5ms behind the host, which is still acceptable for our use case. The tests where conducted using fio and stress. The host machine in an i5 CPU at 3.10GHz running Debian Jessie (kernel 3.12). The guest machine is an arm versatile-pb built with buildroot. Currently, on our test machine, the lowest icount we can achieve that is suitable for aligning the 2 clocks is 6. However, we observe that the IO tests (using fio) are slower than the cpu tests (using stress). Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06icount: Add align option to icountSebastian Tanase
The align option is used for activating the align algorithm in order to synchronise the host clock and the guest clock. Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06icount: Add QemuOpts for icountSebastian Tanase
Make icount parameter use QemuOpts style options in order to easily add other suboptions. Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06icount: Fix virtual clock start value on ARMSebastian Tanase
When using the icount option on ARM, the virtual clock starts counting at realtime clock but it should start at 0. The reason why the virtual clock starts at realtime clock is because the first time we call qemu_clock_warp (which calls icount_warp_rt) in tcg_exec_all, qemu_icount_bias (which is part of the virtual time computation mechanism) will increment by realtime - vm_clock_warp_start, with vm_clock_warp_start being 0 (see icount_warp_rt in cpus.c). By changing the value of vm_clock_warp_start from 0 to -1, the first time we call qemu_clock_warp which calls icount_warp_rt, we will return immediatly because icount_warp_rt first checks if vm_clock_warp_start is -1 and if it's the case it returns. Therefore, qemu_icount_bias will first be incremented by the value of a virtual timer deadline when the virtual cpu goes from active to inactive. The virtual time will start at 0 and increment based on the instruction counter when the vcpu is active or the qemu_icount_bias value when inactive. Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06timer: add cpu_icount_to_ns function.KONRAD Frederic
This adds cpu_icount_to_ns function which is needed for reverse execution. It returns the time for a specific instruction. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06migration: migrate icount fields.KONRAD Frederic
This fixes a bug where qemu_icount and qemu_icount_bias are not migrated. It adds a subsection "timer/icount" to vmstate_timers so icount is migrated only when needed. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06icount: put icount variables into TimerState.KONRAD Frederic
This puts qemu_icount and qemu_icount_bias into TimerState structure to allow them to be migrated. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06backends: Introduce chr-testdevPaolo Bonzini
From: Paolo Bonzini <pbonzini@redhat.com> chr-testdev enables a virtio serial channel to be used for guest initiated qemu exits. hw/misc/debugexit already enables guest initiated qemu exits, but only for PC targets. chr-testdev supports any virtio-capable target. kvm-unit-tests/arm is already making use of this backend. Currently there is a single command implemented, "q". It takes a (prefix) argument for the exit code, thus an exit is implemented by writing, e.g. "1q", to the virtio-serial port. It can be used as: $QEMU ... \ -device virtio-serial-device \ -device virtserialport,chardev=ctd -chardev testdev,id=ctd or, use: $QEMU ... \ -device virtio-serial-device \ -device virtconsole,chardev=ctd -chardev testdev,id=ctd to bind it to virtio-serial port0. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-05vfio: Don't cache MSIMessageAlex Williamson
Commit 40509f7f added a test to avoid updating KVM MSI routes when the MSIMessage is unchanged and f4d45d47 switched to relying on this rather than doing our own comparison. Our cached msg is effectively unused now. Remove it. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2014-08-05vfio: Fix MSI-X vector expansionAlex Williamson
When new MSI-X vectors are enabled we need to disable MSI-X and re-enable it with the correct number of vectors. That means we need to reprogram the eventfd triggers for each vector. Prior to f4d45d47 vector->use tracked whether a vector was masked or unmasked and we could always pick the KVM path when available for unmasked vectors. Now vfio doesn't track mask state itself and vector->use and virq remains configured even for masked vectors. Therefore we need to ask the MSI-X code whether a vector is masked in order to select the correct signaling path. As noted in the comment, MSI relies on hardware to handle masking. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Cc: qemu-stable@nongnu.org # QEMU 2.1
2014-08-04Merge remote-tracking branch ↵Peter Maydell
'remotes/pmaydell/tags/pull-target-arm-20140804' into staging target-arm queue: * Set PC correctly when loading AArch64 ELF files * sdhci: Fix ADMA dma_memory_read access * some more foundational work for EL2/EL3 support * fix bugs which reveal themselves if the TARGET_PAGE_SIZE is not set to 1K # gpg: Signature made Mon 04 Aug 2014 14:51:34 BST using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" * remotes/pmaydell/tags/pull-target-arm-20140804: target-arm: A64: fix TLB flush instructions target-arm: don't hardcode mask values in arm_cpu_handle_mmu_fault target-arm: Fix bit test in sp_el0_access target-arm: Add FAR_EL2 and 3 target-arm: Add ESR_EL2 and 3 target-arm: Make far_el1 an array target-arm: A64: Respect SPSEL when taking exceptions target-arm: A64: Respect SPSEL in ERET SP restore target-arm: A64: Break out aarch64_save/restore_sp sd: sdhci: Fix ADMA dma_memory_read access hw/arm/virt: formatting: memory map hw/arm/boot: Set PC correctly when loading AArch64 ELF files Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: A64: fix TLB flush instructionsAlex Bennée
According to the ARM ARM we weren't correctly flushing the TLB entries where bits 63:56 didn't match bit 55 of the virtual address. This exposed a problem when we switched QEMU's internal TARGET_PAGE_BITS to 12 for aarch64. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1406733627-24255-3-git-send-email-alex.bennee@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: don't hardcode mask values in arm_cpu_handle_mmu_faultAlex Bennée
Otherwise we break quickly when we change TARGET_PAGE_SIZE. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1406733627-24255-2-git-send-email-alex.bennee@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: Fix bit test in sp_el0_accessStefan Weil
Static code analyzers complain about a dubious & operation used for a boolean value. The code does not test the PSTATE_SP bit as it should. Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Weil <sw@weilnetz.de> Message-id: 1406359601-25583-1-git-send-email-sw@weilnetz.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: Add FAR_EL2 and 3Edgar E. Iglesias
Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1402994746-8328-7-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: Add ESR_EL2 and 3Edgar E. Iglesias
Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1402994746-8328-6-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: Make far_el1 an arrayEdgar E. Iglesias
No functional change. Prepares for future additions of the EL2 and 3 versions of this reg. Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1402994746-8328-5-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: A64: Respect SPSEL when taking exceptionsEdgar E. Iglesias
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Message-id: 1402994746-8328-4-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: A64: Respect SPSEL in ERET SP restoreEdgar E. Iglesias
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Message-id: 1402994746-8328-3-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04target-arm: A64: Break out aarch64_save/restore_spEdgar E. Iglesias
Break out code to save/restore AArch64 SP into functions. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Message-id: 1402994746-8328-2-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04sd: sdhci: Fix ADMA dma_memory_read accessPeter Crosthwaite
This dma_memory_read was giving too big a size when begin was non-zero. This could cause segfaults in some circumstances. Fix. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04hw/arm/virt: formatting: memory mapAndrew Jones
Add some spacing and zeros to make it easier to read and modify the map. This patch has no functional changes. The review looks ugly, but it's actually pretty easy to confirm all the addresses are as they should be - thanks to the new formatting ;-) Signed-off-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04hw/arm/boot: Set PC correctly when loading AArch64 ELF filesPeter Maydell
The code in do_cpu_reset() correctly handled AArch64 CPUs when running Linux kernels, but was missing code in the branch of the if() that deals with loading ELF files. Correctly jump to the ELF entry point on reset rather than leaving the reset PC at zero. Reported-by: Christopher Covington <cov@codeaurora.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Christopher Covington <cov@codeaurora.org> Cc: qemu-stable@nongnu.org
2014-08-04Merge remote-tracking branch 'remotes/amit-migration/for-2.2' into stagingPeter Maydell
* remotes/amit-migration/for-2.2: checker: ignore fields marked unused vmstate static checker: whitelist additions Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04Merge remote-tracking branch 'remotes/amit-virtio-rng/for-2.2' into stagingPeter Maydell
* remotes/amit-virtio-rng/for-2.2: virtio-rng: replace error_set calls with error_setg virtio-rng: Move error-checking forward to prevent memory leak Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04Merge remote-tracking branch 'remotes/sstabellini/xen-20140801' into stagingPeter Maydell
* remotes/sstabellini/xen-20140801: qemu: support xen hvm direct kernel boot tap-bsd: implement a FreeBSD only version of tap_open xen: fix usage of ENODATA Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-04checker: ignore fields marked unusedAmit Shah
While comparing qemu-1.0 json output with qemu-2.1, a few fields got marked unused. These need to be skipped over, and not flagged as mismatches. For handling unused fields, the exact number of bytes need to be skipped over as the size of the unused field. Currently, only the term "unused" is matched. When more field names turn up, this will have to be updated based on the whitelist matching method to match more such terms. Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-08-04virtio-rng: replace error_set calls with error_setgJohn Snow
Under recommendation from Luiz Capitulino, we are changing the error_set calls to error_setg while we are fixing up the error handling pathways of virtio-rng. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-08-04virtio-rng: Move error-checking forward to prevent memory leakJohn Snow
This patch pushes the error-checking forward and the virtio initialization backward in the device realization function in order to prevent memory leaks for hot plug scenarios. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-08-01Open 2.2 development treePeter Maydell
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-01qemu: support xen hvm direct kernel bootChunyan Liu
qemu side patch to support xen HVM direct kernel boot: if -kernel exists, calls xen_load_linux(), which will read kernel/initrd and add a linuxboot.bin or multiboot.bin option rom. The linuxboot.bin/multiboot.bin will load kernel/initrd and jump to execute kernel directly. It's working when xen uses seabios. During this work, found the 'kvmvapic' is in option_rom list, it should not be there in xen case. Set s->vapic_control = 0 in xen_apic_realize() to handle that. Signed-off-by: Chunyan Liu <cyliu@suse.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 13:20:01 +0000