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2012-04-23Merge remote-tracking branch 'bonzini/nbd-next' into stagingAnthony Liguori4-159/+212
* bonzini/nbd-next: nbd: obey FUA on reads nbd: do not include block_int.h nbd: do not block in nbd_wr_sync if no data at all is available nbd: consistently return negative errno values nbd: consistently check for <0 or >=0 nbd: consistently use ssize_t nbd: avoid out of bounds access to recv_coroutine array
2012-04-23Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori6-42/+171
* bonzini/scsi-next: scsi: add SANITIZE command SCSI emulation: should tell the guest that we actually support thin provisioning SCSI emulation: Support unmap via WRITE_SAME_10. scsi: advertise DPOFUA scsi: small refactoring of MMC mode-sense scsi: support FUA on reads scsi: add a started field to SCSIDiskReq scsi: force unit access on VERIFY scsi: add support for FUA on writes scsi: move scsi_flush_complete around scsi: make code more homogeneous in AIO callback functions scsi: add missing test for cancelled request virtio-scsi: add multiqueue capability virtio: add virtio_queue_get_id virtio-scsi: prepare migration format for multiqueue scsi: fix memory leak
2012-04-23Merge remote-tracking branch 'stefanha/tracing' into stagingAnthony Liguori17-677/+1036
* stefanha/tracing: tracetool: handle DTrace keywords 'in', 'next', 'self' tracetool: Add MAINTAINERS info tracetool: Add support for the 'dtrace' backend tracetool: Add support for the 'ust' backend tracetool: Add support for the 'simple' backend tracetool: Add support for the 'stderr' backend tracetool: Add module for the 'h' format tracetool: Add module for the 'c' format tracetool: Rewrite infrastructure as python modules
2012-04-21target-arm: Move reset handling to arm_cpu_resetPeter Maydell2-99/+92
Now that cpu_reset_model_id() has gone we can move the reset code over to the class reset function and have cpu_state_reset simply do a reset on the CPU QOM object. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Drop cpu_reset_model_id()Peter Maydell1-58/+1
cpu_reset_model_id() is now empty and we can remove it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move cache ID register setup to cpu specific init fnsPeter Maydell3-11/+18
Move cache ID register reset out of cpu_reset_model_id() by creating a field for the reset value in ARMCPU and setting it up in the cpu specific init functions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move OMAP cp15_i_{max,min} reset to cpu_state_resetPeter Maydell1-2/+1
Move the OMAP-specific cp15_i_{max,min} reset to cpu_state_reset; since these registers are only accessible on CPUs with the OMAPCP feature set there's no need to guard this reset with either a CPUID or feature bit check. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move feature register setup to per-CPU init fnsPeter Maydell3-59/+122
Move feature register value setup to per-CPU init functions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move iWMMXT wCID reset to cpu_state_resetPeter Maydell1-1/+4
Move the iWMMXT wCID reset to cpu_state_reset(). Since we use the same value for all CPUs with this feature (with the major/minor revision fields set to the QEMU specific 'Q' value) there's no need to create an ARMCPU field just for this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Drop JTAG_ID documentationPeter Maydell1-2/+0
None of the machines in QEMU offer a JTAG debug interface, so this info was unused. Further, the PXA250 ID contradicts the February 2002 Developer's Manual, which has it as 0xn9264013 with n the MIDR Revision. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-21target-arm: Move SCTLR reset value setup to per cpu init fnsPeter Maydell3-12/+25
Move the reset value of SCTLR to ARMCPU, initialised in the per-cpu init functions. It can then be reset by a simple copy, and we can drop the code from cpu_reset_model_id(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move CTR setup to per cpu init fnsPeter Maydell3-12/+24
Move CTR (cache type register) value to an ARMCPU field set up by per-cpu init fns. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move MVFR* setup to per cpu init fnsPeter Maydell3-12/+18
Move the MVFR* VFP feature register values to ARMCPU, so they are set up by the implementation-specific instance init functions rather than in cpu_reset_model_id(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move FPSID config to cpu init fnsPeter Maydell3-8/+12
Move the reset FPSID to the ARMCPU struct, and set it in the per-implementation instance init function. At reset we then just copy the reset value into the CPUARMState field. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Move feature bit settings to CPU init fnsPeter Maydell4-99/+137
Move the setting of the feature bits from cpu_reset_model_id() to each CPU's instance init function. This requires us to move the features field in CPUARMState so that it is not cleared on reset. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de>
2012-04-21target-arm: Add QOM subclasses for each ARM cpu implementationPeter Maydell3-65/+282
Register subclasses for each ARM CPU implementation. Let arm_cpu_list() enumerate CPU subclasses in alphabetical order, except for special value "any". Replace cpu_arm_find_by_name()'s string -> CPUID lookup by storing the CPUID (aka MIDR, Main ID Register) value in the class. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-21target-arm: remind to keep arm features in sync with linux-user/elfload.cBenoit Canet1-0/+4
Signed-off-by: Benoit Canet <benoit.canet@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-21Merge branch 'arm-devs.for-upstream' of ↵Blue Swirl5-81/+133
git://git.linaro.org/people/pmaydell/qemu-arm * 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: versatiblepb: add NOR flash support hw/arm_mptimer: Reset the qemu_timer at reset versatilepb: add ds1338 rtc device realview: break out versatile i2c controller code
2012-04-21tci: GETPC() macro must return an uintptr_tStefan Weil2-3/+3
Change the data type of tci_tb_ptr, so GETPC() returns an uintptr_t now (like for all other TCG targets). This completes commit 2050396801ca0c8359364d61eaadece951006057 and fixes builds with TCI. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-21gdbstub: Synchronize CPU state unconditionally in gdb_set_cpu_pcPeter Maydell1-2/+1
Synchronize the CPU state via cpu_sychronize_state() unconditionally in gdb_set_cpu_pc() rather than only in some of the target ifdef ladder cases. We can divide the CPUs into three categories: * non-KVM targets: no change of behaviour since we will use the kvm-stub.c no-op function. * i386 and s390: no change of behaviour since they were already calling this function * PPC (in KVM mode): this fixes an error: failing to synchronise was accidental and probably a bug. This also paves the way for other targets (specifically ARM) which can add KVM support in future without having to add another target specific change to this bit of code. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-21softfloat: make USE_SOFTFLOAT_STRUCT_TYPES compileJuan Quintela1-2/+2
This change makes it compile and return the same value than the #undef one. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-21target-xtensa: add tests for LOOPNEZ and LOOPGTZMax Filippov1-0/+36
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-21target-xtensa: fix LOOPNEZ/LOOPGTZ translationMax Filippov1-1/+1
Translation of LOOP instructions used to call LEND SR write handler to update LEND and invalidate relevant TBs. Now that LEND SR write handler ends TB, LOOPNEZ and LOOPGTZ generate wrong code (same as for simple LOOP). Fix it by calling wsr_lend helper directly. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-21qtest: add m48t59 tests for SparcBlue Swirl2-0/+262
Add simple m48t59 qtests, enable test only for Sparc32 and Sparc64. On PPC, the device is behind PCI bus. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-04-20versatiblepb: add NOR flash supportEric Benard1-0/+16
- add support for the 64MB NOR CFI01 flash available at 0x34000000 on the versatilepb board http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0225d/BBAJIHEC.html - tested with barebox bootloader Signed-off-by: Eric Bénard <eric@eukrea.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-20hw/arm_mptimer: Reset the qemu_timer at resetPeter Maydell1-0/+3
On reset of the mpcore timer/watchdog block we need to delete the qemu_timer in case it was running. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-20versatilepb: add ds1338 rtc deviceOskar Andero1-0/+6
Add ds1338 rtc attached on i2c. Signed-off-by: Oskar Andero <oskar.andero@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-20realview: break out versatile i2c controller codeOskar Andero3-81/+108
The versatile i2c controller implementation was separated to its own file called versatile_i2c.c. This is done as a preparation for adding i2c support to the versatilepb board. Signed-off-by: Oskar Andero <oskar.andero@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-20qemu-iotests: Fix test 031 for qcow2 v3 supportKevin Wolf3-26/+172
qcow2.py must be updated to work with version 3 images at all, the output has changed since the feature table extension has been added, and version 2 and version 3 images can't possibly have the same test output. Change the test case to completely ignore IMGOPTS and run the test for both compat=1.1 and compat=0.10 regardless of the ./check command line. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qemu-iotests: Add -o and make v3 the default for qcow2Kevin Wolf3-5/+52
This adds an -o option to qemu-iotests, which is an option string that is passed through to qemu-img create -o... This allows testing different subformat with a command like './check -qcow2 -o compat=0.10'. For qcow2, if no compat option is specified, compat=1.1 is the new default. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Zero write supportKevin Wolf4-3/+105
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qemu-iotests: Test backing file COW with zero clustersKevin Wolf3-0/+195
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qemu-iotests: add a simple test for write_zeroesPaolo Bonzini3-0/+103
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Support for feature table header extensionKevin Wolf2-9/+69
Instead of printing an ugly bitmask, qemu can now print a more helpful string even for yet unknown features. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Support reading zero clustersKevin Wolf4-4/+33
This adds support for reading zero clusters in version 3 images. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Version 3 imagesKevin Wolf3-15/+149
This adds the basic infrastructure to qcow2 to handle version 3 images. It includes code to create v3 images, allow header updates for v3 images and checks feature bits. It still misses support for zero clusters, so this is not a fully compliant implementation of v3 yet. The default for creating new images stays at v2 for now. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Ignore reserved bits in check_refcountsKevin Wolf1-44/+54
Also don't infer the cluster type directly from the L2 entries, but use qcow2_get_cluster_type() to keep everything in a single place. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Ignore reserved bits in refcount table entriesKevin Wolf2-1/+3
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Simplify count_cow_clustersKevin Wolf1-18/+15
count_cow_clusters() tries to reuse existing functions, and all it achieves is to make things much more complicated than they really are: Everything needs COW, unless it's a normal cluster with refcount 1. This patch implements the obvious way of doing this, and by using qcow2_get_cluster_type() it gets rid of all flag magic. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Refactor qcow2_free_any_clustersKevin Wolf1-19/+22
Zero clusters will add another cluster type. Refactor the open-coded cluster type detection into a switch of QCOW2_CLUSTER_* options so that the detection is in a single place. This makes it easier to add new cluster types. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Ignore reserved bits in L1/L2 entriesKevin Wolf2-19/+19
This changes the still existing places that assume that the only flags are QCOW_OFLAG_COPIED and QCOW_OFLAG_COMPRESSED to properly mask out reserved bits. It does not convert bdrv_check yet. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Fail write_compressed when overwriting dataKevin Wolf1-4/+3
qcow2_alloc_compressed_cluster_offset() already fails if the copied flag is set, because qcow2_write_compressed() doesn't perform COW as it would have to do to allow this. However, what we really want to check here is whether the cluster is allocated or not. With internal snapshots the copied flag may not be set on allocated clusters. Check the cluster offset instead. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Ignore reserved bits in count_contiguous_clusters()Kevin Wolf1-10/+28
Until now, count_contiguous_clusters() has an argument that allowed to specify flags that should be ignored in the comparison, i.e. that are allowed to change between contiguous clusters. This patch changes the function so that it ignores all flags by default now and you need to pass the flags on which it should stop. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Ignore reserved bits in get_cluster_offsetKevin Wolf3-19/+60
With this change, reading from a qcow2 image ignores all reserved bits that are set in an L1 or L2 table entry. Now get_cluster_offset() assigns *cluster_offset only the offset without any other flags. The cluster type is not longer encoded in the offset, but a positive return value in case of success. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Save disk size in snapshot headerKevin Wolf2-0/+17
This allows that different snapshots of an image can have different sizes, which is a requirement for enabling image resizing even with images that have internal snapshots. We don't do the actual support for it now, but make sure that the additional field is present and not completely ignored in all version 3 images. When trying to load a snapshot of different size, it returns an error. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20Specification for qcow2 version 3Kevin Wolf1-23/+99
This updates the qcow2 specification to cover version 3. It contains the following changes: - Added compatible/incompatible/auto-clear feature bits plus an optional feature name table to allow useful error messages even if an older version doesn't know some feature at all. - Configurable refcount width. If you don't want to use internal snapshots, make refcounts one bit and save cache space and I/O. - Zero cluster flags. This allows discard even with a backing file that doesn't contain zeros. It is also useful for copy-on-read/image streaming, as you'll want to keep sparseness without accessing the remote image for an unallocated cluster all the time. - Fixed internal snapshot metadata to use 64 bit VM state size. You can't save a snapshot of a VM with >= 4 GB RAM today. - Extended internal snapshot metadata to contain the disk size, so that resizing images that have snapshots can be allowed in the future. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qcow2: Fix refcount block allocation during qcow2_alloc_cluster_at()Kevin Wolf1-0/+6
Refcount block allocation and refcount table growth rely on s->free_cluster_index pointing to somewhere after the current allocation. Change qcow2_alloc_cluster_at() to fulfill this assumption. Without this change it could happen that a newly allocated refcount block and the allocated data block point to the same area in the image file, causing data corruption in the long run. This fixes a bug that became first visible after commit 250196f1. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20Add .gitignore for tests/David Gibson1-0/+13
The new autotests in tests/ generate a number of files, both executable and source, which are not caught by the existing .gitignore files. This patch adds a new .gitignore in tests/ which covers these. [Changed 'rtc-test' to '*-test' so future tests do not need to be added to .gitignore on a case-by-case basis. Stefan] Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-20e1000: Fix spelling (segmentaion -> segmentation) in debug outputStefan Weil1-1/+1
This was reported by https://bugs.launchpad.net/qemu/+bug/984476. I also changed the case for 'error'. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-20spice-qemu-char.c: Show what name is unsupportedEduardo Elias Ferreira1-1/+1
Signed-off-by: Eduardo Elias Ferreira <edusf@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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