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2019-10-04mips: fix memory leaks in board initializationPaolo Bonzini2-0/+3
They are not a big deal, but they upset asan. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
2019-10-04hppa: fix leak from g_strdup_printfPaolo Bonzini2-1/+4
memory_region_init_* takes care of copying the name into memory it owns. Free it in the caller. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-04mcf5208: fix leak from qemu_allocate_irqsPaolo Bonzini1-0/+2
The array returned by qemu_allocate_irqs is malloced, free it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
2019-10-04microblaze: fix leak of fdevice tree blobPaolo Bonzini1-0/+1
The device tree blob returned by load_device_tree is malloced. Free it before returning. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-10-04ide: fix leak from qemu_allocate_irqsPaolo Bonzini1-0/+1
The array returned by qemu_allocate_irqs is malloced, free it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com>
2019-10-04hw/isa: Introduce a CONFIG_ISA_SUPERIO switch for isa-superio.cThomas Huth3-4/+9
Currently, isa-superio.c is always compiled as soon as CONFIG_ISA_BUS is enabled. But there are also machines that have an ISA BUS without any of the superio chips attached to it, so we should not compile isa-superio.c in case we only compile a QEMU for such a machine. Thus add a proper CONFIG_ISA_SUPERIO switch so that this file only gets compiled when we really, really need it. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-03replay: don't synchronize memory operations in replay modePavel Dovgalyuk1-2/+11
Commit 9458a9a1df1a4c719e24512394d548c1fc7abd22 added synchronization of vCPU and migration operations through calling run_on_cpu operation. However, in replay mode this synchronization is unneeded, because I/O and vCPU threads are already synchronized. This patch disables such synchronization for record/replay mode. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@gmail.com>
2019-10-03qemu-pr-helper: fix crash in mpath_reconstruct_senseMaxim Levitsky1-3/+3
The 'r' variable was accidently shadowed, and because of this we were always passing 0 to mpath_generic_sense, instead of original return value, which triggers an abort() This is an attempt to fix the https://bugzilla.redhat.com/show_bug.cgi?id=1720047 although there might be other places in the code that trigger qemu-pr-helper crash, and this fix might not be the root cause. The crash was reproduced by creating an iscsi target on a test machine, and passing it twice to the guest like that: -blockdev node-name=idisk0,driver=iscsi,transport=...,target=... -device scsi-block,drive=idisk0,bus=scsi0.0,bootindex=-1,scsi-id=1,lun=0,share-rw=on -device scsi-block,drive=idisk0,bus=scsi0.0,bootindex=-1,scsi-id=1,lun=1,share-rw=on Then in the guest, both /dev/sda and /dev/sdb were aggregated by multipath to /dev/mpatha, which was passed to a nested guest like that -object pr-manager-helper,id=qemu_pr_helper,path=/root/work/vm/testvm/.run/pr_helper.socket -blockdev node-name=test,driver=host_device,filename=/dev/mapper/mpatha,pr-manager=qemu_pr_helper -device scsi-block,drive=test,bus=scsi0.0,bootindex=-1,scsi-id=0,lun=0 The nested guest run: sg_persist --no-inquiry -v --out --register --param-sark 0x1234 /dev/sda Strictly speaking this is wrong configuration since qemu is where the multipath was split, and thus the iscsi target was not aware of multipath, and thus when libmpathpersist code rightfully tried to register the PR key on all paths, it failed to do so. However qemu-pr-helper should not crash in this case. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-03tests/migration: Add a test for auto convergeYury Kotov1-19/+138
Signed-off-by: Yury Kotov <yury-kotov@yandex-team.ru> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190909131335.16848-4-yury-kotov@yandex-team.ru> [Reorganize check_migration_status for rebase. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-03accel/kvm: ensure ret always setAlex Bennée1-3/+3
Some of the cross compilers rightly complain there are cases where ret may not be set. 0 seems to be the reasonable default unless particular slot explicitly returns -1. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-10-01Merge remote-tracking branch ↵Peter Maydell6-40/+50
'remotes/huth-gitlab/tags/pull-request-2019-10-01' into staging - Fix and re-enable the usb-hcd-ehci-test - Silence a Coverity warning in hw/m68k/next-cube.c - Fix crash that can occur when using bad binaries with "-kernel" - Disallow colons in the "-accel" parameter # gpg: Signature made Tue 01 Oct 2019 11:03:13 BST # gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5 # gpg: issuer "thuth@redhat.com" # gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full] # gpg: aka "Thomas Huth <thuth@redhat.com>" [full] # gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full] # gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown] # Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5 * remotes/huth-gitlab/tags/pull-request-2019-10-01: Disallow colons in the parameter of "-accel" hw/core/loader: Fix possible crash in rom_copy() hw/m68k/next-cube: Avoid static RTC variables and introduce control register tests: fix echi/ehci typo tests: fix usb-hcd-ehci-test compilation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-01Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2019-09-28' into ↵Peter Maydell183-698/+847
staging QAPI patches for 2019-09-28 # gpg: Signature made Sat 28 Sep 2019 16:18:13 BST # gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653 # gpg: issuer "armbru@redhat.com" # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full] # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full] # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-qapi-2019-09-28: (27 commits) qapi: Improve source file read error handling qapi: Improve reporting of redefinition qapi: Improve reporting of missing documentation comment qapi: Eliminate check_keys(), rename check_known_keys() qapi: Improve reporting of invalid 'if' further qapi: Avoid redundant definition references in error messages qapi: Improve reporting of missing / unknown definition keys qapi: Improve reporting of invalid flags qapi: Improve reporting of invalid 'if' errors qapi: Move context-free checking to the proper place qapi: Move context-sensitive checking to the proper place qapi: Inline check_name() into check_union() qapi: Plumb info to the QAPISchemaMember qapi: Make check_type()'s array case a bit more obvious qapi: Move check for reserved names out of add_name() qapi: Report invalid '*' prefix like any other invalid name qapi: Use check_name_str() where it suffices qapi: Improve reporting of invalid name errors qapi: Reorder check_FOO() parameters for consistency qapi: Improve reporting of member name clashes ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-01Disallow colons in the parameter of "-accel"Thomas Huth2-1/+6
Everybody who used something like "-machine accel=kvm:tcg" in the past might be tempted to specify a similar list with the -accel parameter, too, for example "-accel kvm:tcg". However, this is not how this options is thought to be used, since each "-accel" should only take care of one specific accelerator. In the long run, we really should rework the "-accel" code completely, so that it does not set "-machine accel=..." anymore internally, but is completely independent from "-machine". For the short run, let's make sure that users cannot use "-accel xyz:tcg", so that we avoid that we have to deal with such cases in the wild later. Message-Id: <20190930123505.11607-1-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-10-01hw/core/loader: Fix possible crash in rom_copy()Thomas Huth1-1/+1
Both, "rom->addr" and "addr" are derived from the binary image that can be loaded with the "-kernel" paramer. The code in rom_copy() then calculates: d = dest + (rom->addr - addr); and uses "d" as destination in a memcpy() some lines later. Now with bad kernel images, it is possible that rom->addr is smaller than addr, thus "rom->addr - addr" gets negative and the memcpy() then tries to copy contents from the image to a bad memory location. This could maybe be used to inject code from a kernel image into the QEMU binary, so we better fix it with an additional sanity check here. Cc: qemu-stable@nongnu.org Reported-by: Guangming Liu Buglink: https://bugs.launchpad.net/qemu/+bug/1844635 Message-Id: <20190925130331.27825-1-thuth@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-10-01hw/m68k/next-cube: Avoid static RTC variables and introduce control registerThomas Huth1-33/+40
Coverity currently complains that the "if (0x00 & (0x80 >> (phase - 8))" in next-cube.c can never be true. Right it is. The "0x00" is meant as value of the control register of the RTC, which is currently not implemented yet. Thus, let's add a register variable for this now. However, the RTC registers are currently defined as static variables in nextscr2_write(), which is quite ugly. Thus let's also move the RTC variables to the main machine state instead. In the long run, we should likely even refactor the whole RTC code into a separate device in a separate file, but that's something for calm winter nights later... as a first step, cleaning up the static variables and shutting up the warning from Coverity should be sufficient. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20190921091738.26953-1-huth@tuxfamily.org> Signed-off-by: Thomas Huth <huth@tuxfamily.org>
2019-10-01tests: fix echi/ehci typoMarc-André Lureau1-3/+1
While at it, simplify using $(land). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20190926111955.17276-3-marcandre.lureau@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Fixes: dad5ddcea3b661 ("check: Only test usb-ehci when it is compiled in") Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-10-01tests: fix usb-hcd-ehci-test compilationMarc-André Lureau1-2/+2
Fixes commit e5758de4e836c3b2edc2befd904651fc6967d74f ("tests/libqtest: Make qtest_qmp_device_add/del independent from global_qtest") and commit dd210749727530cdef7c335040edbf81c3c5d041 ("tests/libqtest: Use libqtest-single.h in tests that require global_qtest"). Cc: Thomas Huth <thuth@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20190926111955.17276-2-marcandre.lureau@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-09-30Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20190930' into ↵Peter Maydell9-128/+203
staging - do not abuse memory_region_allocate_system_memory and split the memory according to KVM memslots in KVM code instead (Paolo, Igor) - change splitting to split at 4TB (Christian) - do not claim s390 (31bit) support in configure (Thomas) - sclp error checking (Janosch, Claudio) - new s390 pci maintainer (Matt, Collin) - fix s390 pci (again) (Matt) # gpg: Signature made Mon 30 Sep 2019 12:52:51 BST # gpg: using RSA key 117BBC80B5A61C7C # gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>" [full] # Primary key fingerprint: F922 9381 A334 08F9 DBAB FBCA 117B BC80 B5A6 1C7C * remotes/borntraeger/tags/s390x-20190930: s390/kvm: split kvm mem slots at 4TB s390: do not call memory_region_allocate_system_memory() multiple times kvm: split too big memory section on several memslots kvm: clear dirty bitmaps from all overlapping memslots kvm: extract kvm_log_clear_one_slot configure: Remove s390 (31-bit mode) from the list of supported CPUs s390x: sclp: Report insufficient SCCB length s390x: sclp: fix error handling for oversize control blocks s390x: sclp: boundary check s390x: sclp: refactor invalid command check s390: PCI: fix IOMMU region init MAINTAINERS: Update S390 PCI Maintainer Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-09-30s390/kvm: split kvm mem slots at 4TBChristian Borntraeger1-5/+4
Instead of splitting at an unaligned address, we can simply split at 4TB. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Igor Mammedov <imammedo@redhat.com>
2019-09-30s390: do not call memory_region_allocate_system_memory() multiple timesIgor Mammedov2-27/+14
s390 was trying to solve limited KVM memslot size issue by abusing memory_region_allocate_system_memory(), which breaks API contract where the function might be called only once. Beside an invalid use of API, the approach also introduced migration issue, since RAM chunks for each KVM_SLOT_MAX_BYTES are transferred in migration stream as separate RAMBlocks. After discussion [1], it was agreed to break migration from older QEMU for guest with RAM >8Tb (as it was relatively new (since 2.12) and considered to be not actually used downstream). Migration should keep working for guests with less than 8TB and for more than 8TB with QEMU 4.2 and newer binary. In case user tries to migrate more than 8TB guest, between incompatible QEMU versions, migration should fail gracefully due to non-exiting RAMBlock ID or RAMBlock size mismatch. Taking in account above and that now KVM code is able to split too big MemorySection into several memslots, partially revert commit (bb223055b s390-ccw-virtio: allow for systems larger that 7.999TB) and use kvm_set_max_memslot_size() to set KVMSlot size to KVM_SLOT_MAX_BYTES. 1) [PATCH RFC v2 4/4] s390: do not call memory_region_allocate_system_memory() multiple times Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20190924144751.24149-5-imammedo@redhat.com> Acked-by: Peter Xu <peterx@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30kvm: split too big memory section on several memslotsIgor Mammedov2-44/+81
Max memslot size supported by kvm on s390 is 8Tb, move logic of splitting RAM in chunks upto 8T to KVM code. This way it will hide KVM specific restrictions in KVM code and won't affect board level design decisions. Which would allow us to avoid misusing memory_region_allocate_system_memory() API and eventually use a single hostmem backend for guest RAM. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20190924144751.24149-4-imammedo@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30kvm: clear dirty bitmaps from all overlapping memslotsPaolo Bonzini1-14/+22
Currently MemoryRegionSection has 1:1 mapping to KVMSlot. However next patch will allow splitting MemoryRegionSection into several KVMSlot-s, make sure that kvm_physical_log_slot_clear() is able to handle such 1:N mapping. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <20190924144751.24149-3-imammedo@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30kvm: extract kvm_log_clear_one_slotPaolo Bonzini1-46/+57
We may need to clear the dirty bitmap for more than one KVM memslot. First do some code movement with no semantic change. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <20190924144751.24149-2-imammedo@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> [fixup line break]
2019-09-30configure: Remove s390 (31-bit mode) from the list of supported CPUsThomas Huth1-1/+1
On IBM Z, KVM in the kernel is only implemented for 64-bit mode, and with regards to TCG, we also only support 64-bit host CPUs (see the check at the beginning of tcg/s390/tcg-target.inc.c), so we should remove s390 (without "x", i.e. the old 31-bit mode CPUs) from the list of supported CPUs. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20190928190334.6897-1-thuth@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30s390x: sclp: Report insufficient SCCB lengthClaudio Imbrenda1-0/+12
Return the correct error code when the SCCB buffer is too small to contain all of the output, for the Read SCP Information and Read CPU Information commands. Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com> Message-Id: <1569591203-15258-5-git-send-email-imbrenda@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30s390x: sclp: fix error handling for oversize control blocksJanosch Frank1-2/+1
Requests over 4k are not a spec exception. Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com> Message-Id: <1569591203-15258-4-git-send-email-imbrenda@linux.ibm.com> Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30s390x: sclp: boundary checkJanosch Frank1-0/+5
All sclp codes need to be checked for page boundary violations. Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com> Message-Id: <1569591203-15258-3-git-send-email-imbrenda@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30s390x: sclp: refactor invalid command checkJanosch Frank2-4/+16
Invalid command checking has to be done before the boundary check, refactoring it now allows to insert the boundary check at the correct place later. Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com> Message-Id: <1569591203-15258-2-git-send-email-imbrenda@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30s390: PCI: fix IOMMU region initMatthew Rosato1-1/+6
The fix in dbe9cf606c shrinks the IOMMU memory region to a size that seems reasonable on the surface, however is actually too small as it is based against a 0-mapped address space. This causes breakage with small guests as they can overrun the IOMMU window. Let's go back to the prior method of initializing iommu for now. Fixes: dbe9cf606c ("s390x/pci: Set the iommu region size mpcifc request") Cc: qemu-stable@nongnu.org Reviewed-by: Pierre Morel <pmorel@linux.ibm.com> Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Tested-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reported-by: Stefan Zimmerman <stzi@linux.ibm.com> Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Message-Id: <1569507036-15314-1-git-send-email-mjrosato@linux.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30MAINTAINERS: Update S390 PCI MaintainerMatthew Rosato1-1/+1
As discussed previously with Collin, I will take over maintaining s390 pci. Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com> Message-Id: <1569590461-12562-1-git-send-email-mjrosato@linux.ibm.com> Acked-by: Collin Walling <walling@linux.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-09-30Merge remote-tracking branch ↵Peter Maydell9-106/+131
'remotes/pmaydell/tags/pull-target-arm-20190927' into staging target-arm queue: * Fix the CBAR register implementation for Cortex-A53, Cortex-A57, Cortex-A72 * Fix direct booting of Linux kernels on emulated CPUs which have an AArch32 EL3 (incorrect NSACR settings meant they could not access the FPU) * semihosting cleanup: do more work at translate time and less work at runtime # gpg: Signature made Fri 27 Sep 2019 15:32:43 BST # gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE # gpg: issuer "peter.maydell@linaro.org" # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate] # gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate] # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate] # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * remotes/pmaydell/tags/pull-target-arm-20190927: hw/arm/boot: Use the IEC binary prefix definitions hw/arm/boot.c: Set NSACR.{CP11,CP10} for NS kernel boots tests/tcg: add linux-user semihosting smoke test for ARM target/arm: remove run-time semihosting checks for linux-user target/arm: remove run time semihosting checks target/arm: handle A-profile semihosting at translate time target/arm: handle M-profile semihosting at translate time tests/tcg: clean-up some comments after the de-tangling target/arm: fix CBAR register for AArch64 CPUs Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # tests/tcg/arm/Makefile.target
2019-09-28qapi: Improve source file read error handlingMarkus Armbruster2-21/+27
qapi-gen.py crashes when it can't open the main schema file, and when it can't read from any schema file. Lazy. Change QAPISchema.__init__() to take a file name instead of a file object. Move the open code from _include() to __init__(), so it's used for the main schema file, too. Move the read into the try for good measure, and rephrase the error message. Reporting open or read failure for the main schema file needs a QAPISourceInfo representing "no source". Make QAPISourceInfo cope with fname=None. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-27-armbru@redhat.com>
2019-09-28qapi: Improve reporting of redefinitionMarkus Armbruster4-3/+14
Point to the previous definition, unless it's a built-in. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-26-armbru@redhat.com>
2019-09-28qapi: Improve reporting of missing documentation commentMarkus Armbruster2-11/+10
Have check_exprs() check this later, so the error message gains an "in definition line". Tweak the error message. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-25-armbru@redhat.com>
2019-09-28qapi: Eliminate check_keys(), rename check_known_keys()Markus Armbruster1-19/+21
check_keys() has become a trivial wrapper for check_known_keys(). Eliminate it. This makes its name available. Rename check_known_keys(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-24-armbru@redhat.com>
2019-09-28qapi: Improve reporting of invalid 'if' furtherMarkus Armbruster10-20/+25
check_if()'s errors don't point to the offending part of the expression. For instance: tests/qapi-schema/alternate-branch-if-invalid.json:2: 'if' condition ' ' makes no sense Other check_FOO() do, with the help of a @source argument. Make check_if() do that, too. The example above improves to: tests/qapi-schema/alternate-branch-if-invalid.json:2: 'if' condition ' ' of 'data' member 'branch' makes no sense Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190927134639.4284-23-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-28qapi: Avoid redundant definition references in error messagesMarkus Armbruster53-132/+101
Many error messages refer to the offending definition even though they're preceded by an "in definition" line. Rephrase them. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190927134639.4284-22-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-09-28qapi: Improve reporting of missing / unknown definition keysMarkus Armbruster7-23/+25
Have check_exprs() call check_keys() later, so its error messages gain an "in definition" line. Both check_keys() and check_name_is_str() check the definition's name is a string. Since check_keys() now runs after check_name_is_str() rather than before, its check is dead. Bury it. Checking values in check_keys() is unclean anyway. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-21-armbru@redhat.com>
2019-09-28qapi: Improve reporting of invalid flagsMarkus Armbruster5-14/+20
Split check_flags() off check_keys() and have check_exprs() call it later, so its error messages gain an "in definition" line. Tweak the error messages. Checking values in a function named check_keys() is unclean anyway. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-20-armbru@redhat.com>
2019-09-28qapi: Improve reporting of invalid 'if' errorsMarkus Armbruster5-2/+6
Move check_if() from check_keys() to check_exprs() and call it later, so its error messages gain an "in definition" line. Checking values in a function named check_keys() is unclean anyway. The original sin was commit 0545f6b887 "qapi: Better error messages for bad expressions", which checks the value of key 'name'. More sinning in commit 2cbf09925a "qapi: More rigorous checking for type safety bypass", commit c818408e44 "qapi: Implement boxed types for commands/events", and commit 967c885108 "qapi: add 'if' to top-level expressions". This commit does penance for the latter. The next commits will do penance for the others. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-19-armbru@redhat.com>
2019-09-28qapi: Move context-free checking to the proper placeMarkus Armbruster2-9/+9
QAPISchemaCommand.check() and QAPISchemaEvent().check() check 'data' is present when 'boxed': true. That's context-free. Move to check_command() and check_event(). Tweak the error message while there. check_exprs() & friends now check exactly what qapi-code-gen.txt calls the second layer of syntax. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-18-armbru@redhat.com>
2019-09-28qapi: Move context-sensitive checking to the proper placeMarkus Armbruster40-270/+230
When we introduced the QAPISchema intermediate representation (commit ac88219a6c7), we took a shortcut: we left check_exprs() & friends alone instead of moving semantic checks into the QAPISchemaFOO.check(). The .check() assert check_exprs() did its job. Time to finish the conversion job. Move exactly the context-sensitive checks to the .check(). They replace assertions there. Context-free checks stay put. Fixes the misleading optional tag error demonstrated by test flat-union-optional-discriminator. A few other error message improve. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-17-armbru@redhat.com>
2019-09-28qapi: Inline check_name() into check_union()Markus Armbruster1-2/+4
check_name() consists of check_name_is_str() and check_name_str(). check_union() relies on the latter to catch optional discriminators. The next commit will replace that by a more straightforward check. Inlining check_name() into check_union() now should make that easier to review. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-16-armbru@redhat.com>
2019-09-28qapi: Plumb info to the QAPISchemaMemberMarkus Armbruster2-35/+43
Future commits will need info in the .check() methods of QAPISchemaMember and its descendants. Get it there. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-15-armbru@redhat.com>
2019-09-28qapi: Make check_type()'s array case a bit more obviousMarkus Armbruster1-1/+2
check_type() checks the array's contents, then peels off the array and falls through to the "not array" code without resetting allow_array and allow_dict to False. Works because the peeled value is a string, and allow_array and allow_dict aren't used then. Tidy up anyway: recurse instead, defaulting allow_array and allow_dict to False. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-14-armbru@redhat.com>
2019-09-28qapi: Move check for reserved names out of add_name()Markus Armbruster3-8/+12
The checks for reserved names are spread far and wide. Move one from add_name() to new check_defn_name_str(). This is a first step towards collecting them all in dedicated name checking functions next to check_name(). While there, drop the quotes around the meta-type in check_name_str()'s error messages: "'command' uses ... name 'NAME'" becomes "command uses ... name 'NAME'". Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-13-armbru@redhat.com>
2019-09-28qapi: Report invalid '*' prefix like any other invalid nameMarkus Armbruster5-8/+6
The special "does not allow optional name" error is well meant, but confusing in practice. Drop it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-12-armbru@redhat.com>
2019-09-28qapi: Use check_name_str() where it sufficesMarkus Armbruster1-5/+4
Replace check_name() by check_name_str() where the name is known to be a string. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-11-armbru@redhat.com>
2019-09-28qapi: Improve reporting of invalid name errorsMarkus Armbruster10-4/+25
Split check_name() into check_name_is_str() and check_name_str(), keep check_name() as a wrapper. Move add_name()'s call into its caller check_exprs(), and inline. This permits delaying check_name_str() there, so its error message gains an "in definition" line. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-10-armbru@redhat.com>
2019-09-28qapi: Reorder check_FOO() parameters for consistencyMarkus Armbruster1-41/+39
Most check_FOO() take the thing being checked as first argument. check_name(), check_type(), check_known_keys() don't. Clean that up. While there, drop a "Todo" comment that should have been dropped in commit 87adbbffd4 "qapi: add a dictionary form for TYPE". Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190927134639.4284-9-armbru@redhat.com>