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2017-06-15include/exec/poison: Mark some CONFIG defines as poisoned, tooThomas Huth
These are defined in config-target.h and thus should never be used in common code. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1497468113-2874-3-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15include/exec/poison: Add missing TARGET definesThomas Huth
Since we've got some new CPU targets in QEMU during the last months and years, we've got some new TARGET_xxx defines now which should be marked as poisoned for common code. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1497468113-2874-2-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: refactor nbd_tripVladimir Sementsov-Ogievskiy
- do not use 'goto error_reply' outside a switch to jump into the middle of the switch's default case label - reduce code duplication Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-13-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: rename rc to retVladimir Sementsov-Ogievskiy
For consistency use 'ret' name for saving return code everywhere in the file. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-12-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: get rid of fail: return rcVladimir Sementsov-Ogievskiy
"goto fail" error handling scheme is not needed for just returning error code. Better is return it immediately. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-11-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: nbd_negotiate: fix error pathVladimir Sementsov-Ogievskiy
Current code will return 0 on this nbd_write fail, as rc is 0 after successful nbd_negotiate_options. Fix this. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-10-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: remove NBDClientNewDataVladimir Sementsov-Ogievskiy
"co" field of NBDClientNewData has never been used, all the way back to its declaration in commit 1a6245a5. So let's just use client pointer instead of extra structure. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-9-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: refactor nbd_co_receive_requestVladimir Sementsov-Ogievskiy
Move function tail, about receiving next request out of the function. Error path is simplified and nbd_co_receive_request becomes more corresponding to its name. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-8-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: get rid of EAGAIN dead codeVladimir Sementsov-Ogievskiy
For now nbd_read never returns EAGAIN. So, don't handle it. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-7-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: refactor nbd_co_send_replyVladimir Sementsov-Ogievskiy
As nbd_write never returns value > 0, we can get rid of extra ret. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-6-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: get rid of ssize_tVladimir Sementsov-Ogievskiy
Now nbd_read and friends return int, so get rid of ssize_t. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-5-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd/server: get rid of nbd_negotiate_read and friendsVladimir Sementsov-Ogievskiy
Functions nbd_negotiate_{read,write,drop_sync} were introduced in 1a6245a5b, when nbd_rwv (was nbd_wr_sync) was working through qemu_co_sendv_recvv (the path is nbd_wr_sync -> qemu_co_{recv/send} -> qemu_co_send_recv -> qemu_co_sendv_recvv), which just yields, without setting any handlers. But starting from ff82911cd nbd_rwv (was nbd_wr_syncv) works through qio_channel_yield() which sets handlers, so watchers are redundant in nbd_negotiate_{read,write,drop_sync}, then, let's just use nbd_{read,write,drop} functions. Functions nbd_{read,write,drop} has errp parameter, which is unused in this patch. This will be fixed later. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170602150150.258222-4-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd: make nbd_drop publicVladimir Sementsov-Ogievskiy
Following commit will reuse it for nbd server too. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20170602150150.258222-3-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd: rename read_sync and friendsVladimir Sementsov-Ogievskiy
Rename nbd_wr_syncv -> nbd_rwv read_sync -> nbd_read read_sync_eof -> nbd_read_eof write_sync -> nbd_write drop_sync -> nbd_drop 1. nbd_ prefix read_sync and write_sync are already shared, so it is good to have a namespace prefix. drop_sync will be shared, and read_sync_eof is related to read_sync, so let's rename them all. 2. _sync suffix _sync is related to the fact that nbd_wr_syncv doesn't return if a write to socket returns EAGAIN. The first implementation of nbd_wr_syncv (was wr_sync in 7a5ca8648b) just loops while getting EAGAIN, the current implementation yields in this case. Why we want to get rid of it: - it is normal for r/w functions to be synchronous, so having an additional suffix for it looks redundant (contrariwise, we have _aio suffix for async functions) - _sync suffix in block layer is used when function does flush (so using it for other thing is confusing a bit) - keep function names short after adding nbd_ prefix 3. for nbd_wr_syncv let's use more common notation 'rw' Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20170602150150.258222-2-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15accel: move kvm related accelerator files into accel/Yang Zhong
move kvm related accelerator files into accel/ subdirectory, also create one stub subdirectory, which will include accelerator's stub files. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-5-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15tcg: move tcg backend files into accel/tcg/Yang Zhong
move tcg-runtime.c, translate-all.(ch) and translate-common.c into accel/tcg/ subdirectory and updated related trace-events file. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-4-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15tcg: move tcg related files into accel/tcg/ subdirectoryYang Zhong
move cputlb.c, cpu-exec-common.c and cpu-exec.c related tcg exec file into accel/tcg/ subdirectory. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-3-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15accel: split the tcg accelerator from accel.c fileYang Zhong
there are some types of accelerators in qemu, and all accelerators have their own file except tcg. tcg accelerator is also defined in accel.c file. tcg accelerator file will be splited from accel.c and re-name to tcg-all.c. accel/ directory will be created to include kvm and tcg related files. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-2-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15qemu-nbd: Ignore SIGPIPEMax Reitz
qemu proper has done so for 13 years (8a7ddc38a60648257dc0645ab4a05b33d6040063), qemu-img and qemu-io have done so for four years (526eda14a68d5b3596be715505289b541288ef2a). Ignoring this signal is especially important in qemu-nbd because otherwise a client can easily take down the qemu-nbd server by dropping the connection when the server wants to send something, for example: $ qemu-nbd -x foo -f raw -t null-co:// & [1] 12726 $ qemu-io -c quit nbd://localhost/bar can't open device nbd://localhost/bar: No export with name 'bar' available [1] + 12726 broken pipe qemu-nbd -x foo -f raw -t null-co:// In this case, the client sends an NBD_OPT_ABORT and closes the connection (because it is not required to wait for a reply), but the server replies with an NBD_REP_ACK (because it is required to reply). Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20170611123714.31292-1-mreitz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15nbd: Fix regression on resiliency to port scanEric Blake
Back in qemu 2.5, qemu-nbd was immune to port probes (a transient server would not quit, regardless of how many probe connections came and went, until a connection actually negotiated). But we broke that in commit ee7d7aa when removing the return value to nbd_client_new(), although that patch also introduced a bug causing an assertion failure on a client that fails negotiation. We then made it worse during refactoring in commit 1a6245a (a segfault before we could even assert); the (masked) assertion was cleaned up in d3780c2 (still in 2.6), and just recently we finally fixed the segfault ("nbd: Fully intialize client in case of failed negotiation"). But that still means that ever since we added TLS support to qemu-nbd, we have been vulnerable to an ill-timed port-scan being able to cause a denial of service by taking down qemu-nbd before a real client has a chance to connect. Since negotiation is now handled asynchronously via coroutines, we no longer have a synchronous point of return by re-adding a return value to nbd_client_new(). So this patch instead wires things up to pass the negotiation status through the close_fn callback function. Simple test across two terminals: $ qemu-nbd -f raw -p 30001 file $ nmap 127.0.0.1 -p 30001 && \ qemu-io -c 'r 0 512' -f raw nbd://localhost:30001 Note that this patch does not change what constitutes successful negotiation (thus, a client must enter transmission phase before that client can be considered as a reason to terminate the server when the connection ends). Perhaps we may want to tweak things in a later patch to also treat a client that uses NBD_OPT_ABORT as being a 'successful' negotiation (the client correctly talked the NBD protocol, and informed us it was not going to use our export after all), but that's a discussion for another day. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1451614 Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20170608222617.20376-1-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15hax-all: make async_safe_run_on_cpu safe on HAX tooPaolo Bonzini
While at it, drop the current_cpu assignment since this is a per-thread variable on modern QEMU. Cc: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15kvm-all: make async_safe_run_on_cpu safe on kvm tooRoman Kagan
Wrap the bulk of kvm_cpu_exec with cpu_exec_start/end, so that kvm version can also enjoy performing certain operations while all vCPUs are quiescent. Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Message-Id: <20170606181948.16238-15-rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15vl: Fix broken thread=xxx option of the --accel parameterThomas Huth
Commit bde4d9205 ("Fix the -accel parameter and the documentation for 'hax'") introduced a regression by adding a new local accel_opts variable which shadows the variable with the same name that is declared at the beginning of the main() scope. This causes the qemu_tcg_configure() call later to be always called with NULL, so that the thread=xxx option gets ignored. Fix it by removing the local accel_opts variable and use "opts" instead, which is meant for storing temporary QemuOpts values. And while we're at it, also change the exit(1) here to exit(0) since asking for help is not an error. Fixes: bde4d9205ee9def98852ff6054cdef4efd74e1f8 Reported-by: Markus Armbruster <armbru@redhat.com> Reported-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1496899257-25800-1-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15Makefile: Do not generate files if "configure" has not been run yetThomas Huth
When doing a "make -j10" in the vanilla QEMU source tree (without running "configure" first), the Makefile currently generates two files already, qemu-version.h and qemu-options.def. This should not happen, so let's only build the generated files if config-host.mak is available (i.e. "configure" has been run already). Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1496926799-13040-1-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: always store SCSIRequest* into MegasasCmdPaolo Bonzini
This ensures that the request is unref'ed properly, and avoids a segmentation fault in the new qtest testcase that is added. This is CVE-2017-9503. Reported-by: Zhangyanyu <zyy4013@stu.ouc.edu.cn> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: do not read SCSI req parameters more than once from framePaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: do not read command more than once from framePaolo Bonzini
Avoid TOC-TOU bugs by passing the frame_cmd down, and checking cmd->dcmd_opcode instead of cmd->frame->header.frame_cmd. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: do not read DCMD opcode more than once from framePaolo Bonzini
Avoid TOC-TOU bugs by storing the DCMD opcode in the MegasasCmd Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: do not read iovec count more than once from framePaolo Bonzini
Avoid TOC-TOU bugs depending on how the compiler behaves. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: do not read sense length more than once from framePaolo Bonzini
Avoid TOC-TOU bugs depending on how the compiler behaves. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15megasas: add qtestPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15memory: remove memory_region_set_fdMarc-André Lureau
Now unnecessary since ivshmem uses memory_region_init_ram_from_fd. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15ivshmem: use ram_from_fd()Marc-André Lureau
Instead of having its own mmap handling code, reuse the code from exec.c. Note: memory_region_init_ram_from_fd() adds some restrictions (check for xen, kvm sync-mmu, etc) and changes (such as size alignment). This may actually be more correct. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-6-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15Add memory_region_init_ram_from_fd()Marc-André Lureau
Add a new function to initialize a RAM memory region with a file descriptor to be mmap-ed. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-5-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15exec: split qemu_ram_alloc_from_file()Marc-André Lureau
Add qemu_ram_alloc_from_fd(), which can be use to allocate ramblock from fd only. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-4-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15exec: split file_ram_alloc()Marc-André Lureau
Move file opening part in a seperate function, file_ram_open(). This allows for reuse of file_ram_alloc() with a given fd. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-3-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-15exec: check kvm mmu notifiers earlierMarc-André Lureau
Move kvm mmu notifiers check before calling file_ram_alloc(), with the other xen precondition. (file_ram_alloc() will be reused in other cases than -mem-path). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170602141229.15326-2-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-06-13Merge remote-tracking branch ↵Peter Maydell
'remotes/pmaydell/tags/pull-target-arm-20170613' into staging target-arm queue: * vITS: Support save/restore * timer/aspeed: Fix timer enablement when reload is not set * aspped: add temperature sensor device * timer.h: Provide better monotonic time on ARM hosts * exynos4210: various cleanups * exynos4210: support system poweroff # gpg: Signature made Tue 13 Jun 2017 15:05:49 BST # gpg: using RSA key 0x3C2525ED14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" # gpg: aka "Peter Maydell <pmaydell@gmail.com>" # gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" # Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE * remotes/pmaydell/tags/pull-target-arm-20170613: hw/intc/arm_gicv3_its: Allow save/restore hw/intc/arm_gicv3_kvm: Implement pending table save hw/intc/arm_gicv3_its: Implement state save/restore kvm-all: Pass an error object to kvm_device_access timer/aspeed: fix timer enablement when a reload is not set aspeed: add a temp sensor device on I2C bus 3 hw/misc: add a TMP42{1, 2, 3} device model timer.h: Provide better monotonic time hw/misc/exynos4210_pmu: Add support for system poweroff hw/intc/exynos4210_gic: Constify array of combiner interrupts hw/arm/exynos: Use type define instead of hard-coded a9mpcore_priv string hw/arm/exynos: Declare local variables in some order hw/arm/exynos: Move DRAM initialization next boards hw/timer/exynos4210_mct: Remove unused defines hw/timer/exynos4210_mct: Cleanup indentation and empty new lines hw/timer/exynos4210_mct: Fix checkpatch style errors hw/intc/exynos4210_gic: Use more meaningful name for local variable Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/intc/arm_gicv3_its: Allow save/restoreEric Auger
We change the restoration priority of both the GICv3 and ITS. The GICv3 must be restored before the ITS and the ITS needs to be restored before PCIe devices since it translates their MSI transactions. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-id: 1497023553-18411-5-git-send-email-eric.auger@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/intc/arm_gicv3_kvm: Implement pending table saveEric Auger
This patch adds the flush of the LPI pending bits into the redistributor pending tables. This happens on VM stop. There is no explicit restore as the tables are implicitly sync'ed on ITS table restore and on LPI enable at redistributor level. Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-id: 1497023553-18411-4-git-send-email-eric.auger@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/intc/arm_gicv3_its: Implement state save/restoreEric Auger
We need to handle both registers and ITS tables. While register handling is standard, ITS table handling is more challenging since the kernel API is devised so that the tables are flushed into guest RAM and not in vmstate buffers. Flushing the ITS tables on device pre_save() is too late since the guest RAM is already saved at this point. Table flushing needs to happen when we are sure the vcpus are stopped and before the last dirty page saving. The right point is RUN_STATE_FINISH_MIGRATE but sometimes the VM gets stopped before migration launch so let's simply flush the tables each time the VM gets stopped. For regular ITS registers we just can use vmstate pre_save() and post_load() callbacks. Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-id: 1497023553-18411-3-git-send-email-eric.auger@redhat.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13kvm-all: Pass an error object to kvm_device_accessEric Auger
In some circumstances, we don't want to abort if the kvm_device_access fails. This will be the case during ITS migration, in case the ITS table save/restore fails because the guest did not program the vITS correctly. So let's pass an error object to the function and return the ioctl value. New callers will be able to make a decision upon this returned value. Existing callers pass &error_abort which will cause the function to abort on failure. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-id: 1497023553-18411-2-git-send-email-eric.auger@redhat.com [PMM: wrapped long line] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13timer/aspeed: fix timer enablement when a reload is not setCédric Le Goater
When a timer is enabled before a reload value is set, the controller waits for a reload value to be set before starting decrementing. This fix tries to cover that case by changing the timer expiry only when a reload value is valid. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Message-id: 1496739312-32304-1-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13aspeed: add a temp sensor device on I2C bus 3Cédric Le Goater
Temperatures can be changed from the monitor with : (qemu) qom-set /machine/unattached/device[2] temperature0 12000 Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1496739230-32109-3-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/misc: add a TMP42{1, 2, 3} device modelCédric Le Goater
Largely inspired by the TMP105 temperature sensor, here is a model for the TMP42{1,2,3} temperature sensors. Specs can be found here : http://www.ti.com/lit/gpn/tmp421 Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-id: 1496739230-32109-2-git-send-email-clg@kaod.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13timer.h: Provide better monotonic timePranith Kumar
Tested and confirmed that the stretch i386 debian qcow2 image on a raspberry pi 2 works. Fixes: LP#: 893208 <https://bugs.launchpad.net/qemu/+bug/893208/> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 20170418191817.10430-1-bobby.prani@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/misc/exynos4210_pmu: Add support for system poweroffKrzysztof Kozlowski
On all Exynos-based boards, the system powers down itself by driving PS_HOLD signal low - eight bit in PS_HOLD_CONTROL register of PMU. Handle writing to respective PMU register to fix power off failure: reboot: Power down Unable to poweroff system shutdown: 31 output lines suppressed due to ratelimiting Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000 CPU: 0 PID: 1 Comm: shutdown Not tainted 4.11.0-rc8 #846 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [<c031050c>] (unwind_backtrace) from [<c030ba6c>] (show_stack+0x10/0x14) [<c030ba6c>] (show_stack) from [<c05b2800>] (dump_stack+0x88/0x9c) [<c05b2800>] (dump_stack) from [<c03d3140>] (panic+0xdc/0x268) [<c03d3140>] (panic) from [<c0343614>] (do_exit+0xa90/0xab4) [<c0343614>] (do_exit) from [<c035f2dc>] (SyS_reboot+0x164/0x1d0) [<c035f2dc>] (SyS_reboot) from [<c0307c80>] (ret_fast_syscall+0x0/0x3c) Additionally the initial value of PS_HOLD has to be changed because recent Linux kernel (v4.12-rc1) uses regmap cache for this access. When the register is kept at reset value, the kernel will not issue a write to it. Usually the bootloader sets the eight bit of PS_HOLD high so mimic its existence here. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/intc/exynos4210_gic: Constify array of combiner interruptsKrzysztof Kozlowski
The static array of interrupt combiner mappings is not modified so it can be made const for code safeness. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/arm/exynos: Use type define instead of hard-coded a9mpcore_priv stringKrzysztof Kozlowski
Use a define for a9mpcore_priv device type name instead of hard-coded string. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13hw/arm/exynos: Declare local variables in some orderKrzysztof Kozlowski
Bring some more readability by declaring local function variables: first initialized ones and then the rest (with reversed-christmas-tree order). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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