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2015-11-05target-i386: Remove ABM from qemu64 CPU modelEduardo Habkost1-0/+5
ABM is not available on Sandy Bridge and older, and we want to make the default CPU runnable in most hosts, so it won't be enabled by default in KVM mode. We should eventually have all features supported by TCG enabled by default in TCG mode, but as we don't have a good mechanism today to ensure we have different defaults in KVM and TCG mode, disable ABM in the qemu64 CPU model entirely. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-11-05target-i386: Remove SSE4a from qemu64 CPU modelEduardo Habkost1-0/+5
SSE4a is not available in any Intel CPU, and we want to make the default CPU runnable in most hosts, so it doesn't make sense to enable it by default in KVM mode. We should eventually have all features supported by TCG enabled by default in TCG mode, but as we don't have a good mechanism today to ensure we have different defaults in KVM and TCG mode, disable SSE4a in the qemu64 CPU model entirely. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-11-05target-i386: Set "check=off" by default on pc-*-2.4 and olderEduardo Habkost1-0/+5
The default CPU model (qemu64) have some issues today: it enables some features (ABM and SSE4a) that are not present in many host CPUs. That means many hosts (but not all of them) had those features silently disabled in the default configuration in QEMU 2.4 and older. With the new "check=on" default, this causes warnings to be printed in the default configuration, because of the lack of SSE4A on all Intel hosts, and the lack of ABM on Sandy Bridge and older hosts: $ qemu-system-x86_64 -machine pc,accel=kvm warning: host doesn't support requested feature: CPUID.80000001H:ECX.abm [bit 5] warning: host doesn't support requested feature: CPUID.80000001H:ECX.sse4a [bit 6] Those issues will be fixed in pc-*-2.5 and newer. But as we can't change the guest ABI in pc-*-2.4, disable "check" mode by default in pc-*-2.4 and older so we don't print spurious warnings. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-11-05Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell4-12/+2
* Guest ABI fixes for PC machines (hw_version) * Fixes for recent Perl * John Snow's configure fixes * file-backed RAM improvements (Igor, Pavel) * -Werror=clobbered fixes (Stefan) * Kill -d ioport * Fix qemu-system-s390x * Performance improvement for kvmclock migration # gpg: Signature made Thu 05 Nov 2015 13:42:27 GMT using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" * remotes/bonzini/tags/for-upstream: iscsi: Translate scsi sense into error code Revert "Introduce cpu_clean_all_dirty" kvmclock: add a new function to update env->tsc. configure: disable FORTIFY_SOURCE under clang backends/hostmem-file: Allow to specify full pathname for backing file configure: disallow ccache during compile tests cpu-exec: Fix compiler warning (-Werror=clobbered) memory: call begin, log_start and commit when registering a new listener megasas: Use qemu_hw_version() instead of QEMU_VERSION osdep: Rename qemu_{get, set}_version() to qemu_{, set_}hw_version() pc: Set hw_version on all machine classes qemu-log: remove -d ioport ioport: do not use CPU_LOG_IOPORT target-i386: fix pcmpxstrx equal-ordered (strstr) mode scripts/text2pod.pl: Escape left brace file_ram_alloc: propagate error to caller instead of terminating QEMU Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-05Revert "Introduce cpu_clean_all_dirty"Liang Li2-9/+0
This reverts commit de9d61e83d43be9069e6646fa9d57a3f47779d28. Now 'cpu_clean_all_dirty' is useless, we can revert the related code. Conflicts: include/sysemu/kvm.h Signed-off-by: Liang Li <liang.z.li@intel.com> Message-Id: <1446695464-27116-3-git-send-email-liang.z.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-04osdep: Rename qemu_{get, set}_version() to qemu_{, set_}hw_version()Eduardo Habkost1-2/+2
This makes the purpose of the function clearer: it is not about the version of QEMU that's running, but the version string exposed in the emulated hardware. Cc: Andrzej Zaborowski <balrogg@gmail.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: John Snow <jsnow@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1446233769-7892-3-git-send-email-ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-04qemu-log: remove -d ioportPaolo Bonzini1-1/+0
It was disabled at compile-time, and is now replaced by tracepoints. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-04migration: rename cancel to cleanup in SaveVMHandlesLiang Li1-1/+1
'cleanup' seems more appropriate than 'cancel'. Signed-off-by: Liang Li <liang.z.li@intel.com> Reviewed-by: Juan Quintela <quintela@redhat.com>al3 Reviewed-by: Amit Shah <amit.shah@redhat.com>al3 Signed-off-by: Juan Quintela <quintela@redhat.com>al3
2015-11-04migration: rename qemu_savevm_state_cancelLiang Li1-1/+1
The function qemu_savevm_state_cancel is called after the migration in migration_thread, it seems strange to 'cancel' it after completion, rename it to qemu_savevm_state_cleanup looks better. Signed-off-by: Liang Li <liang.z.li@intel.com> Reviewed-by: Juan Quintela <quintela@redhat.com>al3 Reviewed-by: Amit Shah <amit.shah@redhat.com>al3 Signed-off-by: Juan Quintela <quintela@redhat.com>al3
2015-11-03armv7-m: Return DeviceState* from armv7m_init()Michael Davidsaver1-1/+1
Change armv7m_init to return the DeviceState* for the NVIC. This allows access to all GPIO blocks, not just the IRQ inputs. Move qdev_get_gpio_in() calls out of armv7m_init() into board code for stellaris and stm32f205 boards. Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-03arm: boot: Add board specific setup code APIPeter Crosthwaite1-0/+10
Add an API for boards to inject their own preboot software (or firmware) sequence. The software then returns to the bootloader via the link register. This allows boards to do their own little bits of firmware setup without needed to replace the bootloader completely (which is the requirement for existing firmware support). The blob is loaded by a callback if and only if doing a linux boot (similar to the existing write_secondary support). Rewrite the comment for the primary boot blob. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: 070295644c6ac84696d743913296e8cfefb48c15.1446182614.git.crosthwaite.peter@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-03ui/curses: Support line graphics chars on -curses modeOGAWA Hirofumi1-1/+11
This converts vga code to curses code in console_write_bh(). With this changes, we can see line graphics (for example, dialog uses) correctly. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-30Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell4-1/+102
staging # gpg: Signature made Thu 29 Oct 2015 18:09:16 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: block: Consider all child nodes in bdrv_requests_pending() target-arm: xlnx-zynqmp: Add sdhci support. sdhci: Split sdhci.h for public and internal device usage sd.h: Move sd.h to include/hw/sd/ virtio: sync the dataplane vring state to the virtqueue before virtio_save gdb command: qemu handlers virtio-blk: switch off scsi-passthrough by default ppc/spapr: add 2.4 compat props s390x: include HW_COMPAT_* props qemu-gdb: add $qemu_coroutine_sp and $qemu_coroutine_pc qemu-gdb: extract parts of "qemu coroutine" implementation qemu-gdb: allow using glibc_pointer_guard() on core dumps Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-30glib: add compatibility interface for g_hash_table_add()Markus Armbruster1-0/+8
The next commit will use it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-10-29target-arm: xlnx-zynqmp: Add sdhci support.Sai Pavan Boddu1-0/+3
Add two SYSBUS_SDHCI devices for xlnx-zynqmp Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-10-29sdhci: Split sdhci.h for public and internal device usageSai Pavan Boddu1-0/+94
Split sdhci.h into pubilc version (i.e include/hw/sd/sdhci.h) and internal version (i.e hw/sd/sdhci-interna.h) based on register declarations and object declaration. Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-10-29sd.h: Move sd.h to include/hw/sd/Sai Pavan Boddu1-0/+0
Create a sd directory under include/hw/ and move sd.h to include/hw/sd/ Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-10-29virtio-blk: switch off scsi-passthrough by defaultCornelia Huck1-1/+5
Devices that are compliant with virtio-1 do not support scsi passthrough any more (and it has not been a recommended setup anyway for quite some time). To avoid having to switch it off explicitly in newer qemus that turn on virtio-1 by default, let's switch the default to scsi=false for 2.5. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1444991154-79217-4-git-send-email-cornelia.huck@de.ibm.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-10-29qobject: Drop QObject_HEADMarkus Armbruster7-10/+6
QObject_HEAD is a macro expanding into the common part of structs that are sub-types of QObject. It's always been just QObject base, and unlikely to change. Drop the macro, because the code is clearer with out it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1444918537-18107-2-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-10-29enable multi-function hot-addCao jin1-0/+1
Enable PCIe device multi-function hot-add, just ensure function 0 is added last, then driver will get the notification to scan the slot. Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29Revert "memhp: extend address auto assignment to support gaps"Michael S. Tsirkin1-4/+3
This reverts commit df0acded19ec4b826aa095cfc19d341bd66fafd3. There's no point to it now that the only user has been reverted. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29Revert "pc: memhp: force gaps between DIMM's GPA"Michael S. Tsirkin1-1/+0
This reverts commit aa8580cddf011e8cedcf87f7a0fdea7549fc4704. As described in http://article.gmane.org/gmane.comp.emulators.qemu/371432 that commit causes linux guests to crash on memory hot-unplug. The original problem it's trying to solve has now been addressed within virtio. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29virtio: drop virtqueue_map_sgMichael S. Tsirkin1-2/+0
Deprecated in favor of virtqueue_map. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
2015-10-29virtio: introduce virtio_mapMichael S. Tsirkin1-0/+1
virtio_map_sg currently fails if one of the entries it's mapping is contigious in GPA but not HVA address space. Introduce virtio_map which handles this by splitting sg entries. This new API generally turns out to be a good idea since it's harder to misuse: at least in one case the existing one was used incorrectly. This will still fail if there's no space left in the sg, but luckily max queue size in use is currently 256, while max sg size is 1024, so we should be OK even is all entries happen to cross a single DIMM boundary. Won't work well with very small DIMM sizes, unfortunately: e.g. this will fail with 4K DIMMs where a single request might span a large number of DIMMs. Let's hope these are uncommon - at least we are not breaking things. Note: virtio-scsi calls virtio_map_sg on data loaded from network, and validates input, asserting on failure. Copy the validating code here - it will be dropped from virtio-scsi in a follow-up patch. Reported-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
2015-10-27arm_gic_kvm: Disable live migration if not supportedPavel Fedin1-0/+1
Currently, if the kernel does not have live migration API, the migration will still be attempted, but vGIC save/restore functions will just not do anything. This will result in a broken machine state. This patch fixes the problem by adding migration blocker if kernel API is not supported. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-26Merge remote-tracking branch 'remotes/elmarco/tags/ivshmem-pull-request' ↵Peter Maydell4-8/+45
into staging ivshmem series # gpg: Signature made Mon 26 Oct 2015 09:27:46 GMT using RSA key ID 75969CE5 # gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" # gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 87A9 BD93 3F87 C606 D276 F62D DAE8 E109 7596 9CE5 * remotes/elmarco/tags/ivshmem-pull-request: (51 commits) doc: document ivshmem & hugepages ivshmem: use little-endian int64_t for the protocol ivshmem: use kvm irqfd for msi notifications ivshmem: rename MSI eventfd_table ivshmem: remove EventfdEntry.vector ivshmem: add hostmem backend ivshmem: use qemu_strtosz() ivshmem: do not keep shm_fd open tests: add ivshmem qtest qtest: add qtest_add_abrt_handler() msix: implement pba write (but read-only) contrib: remove unnecessary strdup() ivshmem: add check on protocol version in QEMU docs: update ivshmem device spec ivshmem-server: fix hugetlbfs support ivshmem-server: use a uint16 for client ID ivshmem-client: check the number of vectors contrib: add ivshmem client and server util: const event_notifier_get_fd() argument ivshmem: reset mask on device reset ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-24ivshmem: add check on protocol version in QEMUDavid Marchand1-0/+25
Send a protocol version as the first message from server, clients must close communication if they don't support this protocol version. Older QEMUs should be fine with this change in the protocol since they overrides their own vm_id on reception of an id associated to no eventfd. Signed-off-by: David Marchand <david.marchand@6wind.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [use fifo_update_and_get()] Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2015-10-24util: const event_notifier_get_fd() argumentMarc-André Lureau1-1/+1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-24msix: add VMSTATE_MSIX_TESTMarc-André Lureau1-6/+10
ivshmem is going to use MSIX state conditionally. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2015-10-24char: add qemu_chr_free()Marc-André Lureau1-1/+9
If a chardev is allowed to be created outside of QMP, then it must be also possible to free it. This is useful for ivshmem that creates chardev anonymously and must be able to free them. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2015-10-23Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell7-33/+90
Block layer patches # gpg: Signature made Fri 23 Oct 2015 17:59:56 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (37 commits) tests: Add test case for aio_disable_external block: Add "drained begin/end" for internal snapshot block: Add "drained begin/end" for transactional blockdev-backup block: Add "drained begin/end" for transactional backup block: Add "drained begin/end" for transactional external snapshot block: Introduce "drained begin/end" API aio: introduce aio_{disable,enable}_external dataplane: Mark host notifiers' client type as "external" nbd: Mark fd handlers client type as "external" aio: Add "is_external" flag for event handlers throttle: Remove throttle_group_lock/unlock() blockdev: Allow more options for BB-less BDS tree blockdev: Pull out blockdev option extraction blockdev: Do not create BDS for empty drive block: Prepare for NULL BDS block: Add blk_insert_bs() block: Prepare remaining BB functions for NULL BDS block: Fail requests to empty BlockBackend block: Make some BB functions fall back to BBRS block: Add BlockBackendRootState ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-23block: Introduce "drained begin/end" APIFam Zheng2-0/+21
The semantics is that after bdrv_drained_begin(bs), bs will not get new external requests until the matching bdrv_drained_end(bs). Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23aio: introduce aio_{disable,enable}_externalFam Zheng1-0/+38
Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23aio: Add "is_external" flag for event handlersFam Zheng1-0/+2
All callers pass in false, and the real external ones will switch to true in coming patches. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23throttle: Remove throttle_group_lock/unlock()Alberto Garcia1-3/+0
The group throttling code was always meant to handle its locking internally. However, bdrv_swap() was touching the ThrottleGroup structure directly and therefore needed an API for that. Now that bdrv_swap() no longer exists there's no need for the throttle_group_lock() API anymore. Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Add blk_insert_bs()Max Reitz1-0/+1
This function associates the given BlockDriverState with the given BlockBackend. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Add BlockBackendRootStateMax Reitz3-0/+13
This structure will store some of the state of the root BDS if the BDS tree is removed, so that state can be restored once a new BDS tree is inserted. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block/throttle-groups: Make incref/decref publicMax Reitz1-0/+3
Throttle groups are not necessarily referenced by BDSs alone; a later patch will essentially allow BBs to reference them, too. Make the ref/unref functions public so that reference can be properly accounted for. Their interface is slightly adjusted in that they return and take a ThrottleState pointer, respectively, instead of a ThrottleGroup pointer. Functionally, they are equivalent, but since ThrottleGroup is not meant to be used outside of block/throttle-groups.c, ThrottleState is easier to handle. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Move I/O status and error actions into BBMax Reitz3-17/+7
These options are only relevant for the user of a whole BDS tree (like a guest device or a block job) and should thus be moved into the BlockBackend. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Move BlockAcctStats into BlockBackendMax Reitz2-5/+0
As the comment above bdrv_get_stats() says, BlockAcctStats is something which belongs to the device instead of each BlockDriverState. This patch therefore moves it into the BlockBackend. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Remove wr_highest_sector from BlockAcctStatsMax Reitz2-3/+3
BlockAcctStats contains statistics about the data transferred from and to the device; wr_highest_sector does not fit in with the rest. Furthermore, those statistics are supposed to be specific for a certain device and not necessarily for a BDS (see the comment above bdrv_get_stats()); on the other hand, wr_highest_sector may be a rather important information to know for each BDS. When BlockAcctStats is finally removed from the BDS, we will want to keep wr_highest_sector in the BDS. Finally, wr_highest_sector is renamed to wr_highest_offset and given the appropriate meaning. Externally, it is represented as an offset so there is no point in doing something different internally. Its definition is changed to match that in qapi/block-core.json which is "the offset after the greatest byte written to". Doing so should not cause any harm since if external programs tried to calculate the volume usage by (wr_highest_offset + 512) / volume_size, after this patch they will just assume the volume to be full slightly earlier than before. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Move guest_block_size into BlockBackendMax Reitz2-4/+0
guest_block_size is a guest device property so it should be moved into the interface between block layer and guest devices, which is the BlockBackend. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Add blk_is_available()Max Reitz1-0/+1
blk_is_available() returns true iff the BDS is inserted (which means blk_bs() is not NULL and bdrv_is_inserted() returns true) and if the tray of the guest device is closed. blk_is_inserted() is changed to return true only if blk_bs() is not NULL. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23block: Make bdrv_is_inserted() return a boolMax Reitz3-3/+3
Make bdrv_is_inserted(), blk_is_inserted(), and the callback BlockDriver.bdrv_is_inserted() return a bool. Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23target-i386: Disable cache info passthrough by defaultEduardo Habkost1-0/+5
The host cache information may not make sense for the guest if the VM CPU topology doesn't match the host CPU topology. To make sure we won't expose broken cache information to the guest, disable cache info passthrough by default, and add a new "host-cache-info" property that can be used to enable the old behavior for users that really need it. Cc: Benoît Canet <benoit@irqsave.net> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-23spapr_iommu: Provide a function to switch a TCE table to allowing VFIODavid Gibson1-0/+2
Because of the way non-VFIO guest IOMMU operations are KVM accelerated, not all TCE tables (guest IOMMU contexts) can support VFIO devices. Currently, this is decided at creation time. To support hotplug of VFIO devices, we need to allow a TCE table which previously didn't allow VFIO devices to be switched so that it can. This patch adds an spapr_tce_set_need_vfio() function to do this, by reallocating the table in userspace if necessary. Currently this doesn't allow the KVM acceleration to be re-enabled if all the VFIO devices are removed. That's an optimization for another time. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-23spapr_iommu: Rename vfio_accel parameterDavid Gibson1-2/+2
The vfio_accel parameter used when creating a new TCE table (guest IOMMU context) has a confusing name. What it really means is whether we need the TCE table created to be able to support VFIO devices. VFIO is relevant, because when available we use in-kernel acceleration of the TCE table, but that may not work with VFIO devices because updates to the table are handled in kernel, bypass qemu and so don't hit qemu's infrastructure for keeping the VFIO host IOMMU state in sync with the guest IOMMU state. Rename the parameter to "need_vfio" throughout. This is a cosmetic change, with no impact on the logic. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-23spapr_pci: Allow PCI host bridge DMA window to be configuredDavid Gibson1-2/+1
At present the PCI host bridge (PHB) for the pseries machine type has a fixed DMA window from 0..1GB (in PCI address space) which is mapped to real memory via the PAPR paravirtualized IOMMU. For better support of VFIO devices, we're going to want to allow for different configurations of the DMA window. Eventually we'll want to allow the guest itself to reconfigure the window via the PAPR dynamic DMA window interface, but as a preliminary this patch allows the user to reconfigure the window with new properties on the PHB device. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2015-10-22Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20151021' into stagingPeter Maydell1-0/+1
Collected tcg backend patches # gpg: Signature made Wed 21 Oct 2015 22:34:28 BST using RSA key ID 4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" * remotes/rth/tags/pull-tcg-20151021: cpu-exec: Add "nochain" debug flag tcg/mips: Support r6 SEL{NE, EQ}Z instead of MOVN/MOVZ tcg/mips: Support r6 multiply/divide encodings tcg/mips: Support r6 JR encoding tcg/mips: Add use_mips32r6_instructions definition disas/mips: Add R6 jr/jr.hb to disassembler tcg-opc.h: Simplify insn_start def tcg/ppc: Prefer mask over andi. tcg/ppc: Revise goto_tb implementation tcg/ppc: Adjust exit_tb for change in prologue placement Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-22Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell7-17/+132
vhost, pc, virtio features, fixes, cleanups New features: VT-d support for devices behind a bridge vhost-user migration support Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Thu 22 Oct 2015 12:39:19 BST using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" * remotes/mst/tags/for_upstream: (37 commits) hw/isa/lpc_ich9: inject the SMI on the VCPU that is writing to APM_CNT i386: keep cpu_model field in MachineState uptodate vhost: set the correct queue index in case of migration with multiqueue piix: fix resource leak reported by Coverity seccomp: add memfd_create to whitelist vhost-user-test: check ownership during migration vhost-user-test: add live-migration test vhost-user-test: learn to tweak various qemu arguments vhost-user-test: wrap server in TestServer struct vhost-user-test: remove useless static check vhost-user-test: move wait_for_fds() out vhost: add migration block if memfd failed vhost-user: use an enum helper for features mask vhost user: add rarp sending after live migration for legacy guest vhost user: add support of live migration net: add trace_vhost_user_event vhost-user: document migration log vhost: use a function for each call vhost-user: add a migration blocker vhost-user: send log shm fd along with log_base ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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