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2013-07-23po/Makefile: Fix and improve help messageStefan Weil
The help message contains single quotes which got lost in the output. Fix also a typo and use two instead of three lines. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-23Merge remote-tracking branch 'quintela/migration.next' into stagingAnthony Liguori
# By Michael R. Hines (8) and others # Via Juan Quintela * quintela/migration.next: migration: add autoconvergence documentation Fix real mode guest segments dpl value in savevm Fix real mode guest migration rdma: account for the time spent in MIG_STATE_SETUP through QMP rdma: introduce MIG_STATE_NONE and change MIG_STATE_SETUP state transition rdma: allow state transitions between other states besides ACTIVE rdma: send pc.ram rdma: core logic rdma: introduce ram_handle_compressed() rdma: bugfix: ram_control_save_page() rdma: update documentation to reflect new unpin support Message-id: 1374590725-14144-1-git-send-email-quintela@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-23Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into stagingAnthony Liguori
QOM CPUState refactorings * Fix NULL pointer dereference in gdbstub * Introduce vaddr type * Introduce CPUClass::set_pc() * Introduce CPUClass::synchronize_from_tb() * Introduce CPUClass::get_phys_page_debug() * Introduce CPUClass::memory_rw_debug() * Move singlestep_enabled and gdb_regs fields out of CPU_COMMON * Adopt CPUState in more APIs * Propagate CPUState in gdbstub # gpg: Signature made Mon 22 Jul 2013 07:50:17 PM CDT using RSA key ID 3E7E013F # gpg: Can't check signature: public key not found # By Andreas Färber (21) and others # Via Andreas Färber * afaerber/tags/qom-cpu-for-anthony: (24 commits) linux-user: Use X86CPU property to retrieve CPUID family gdbstub: Change gdb_register_coprocessor() argument to CPUState cpu: Move gdb_regs field from CPU_COMMON to CPUState gdbstub: Change GDBState::{c,g}_cpu and find_cpu() to CPUState cpu: Introduce CPUClass::memory_rw_debug() for target_memory_rw_debug() exec: Change cpu_memory_rw_debug() argument to CPUState cpu: Turn cpu_get_phys_page_debug() into a CPUClass hook gdbstub: Change gdb_{read,write}_register() argument to CPUState gdbstub: Change gdb_handlesig() argument to CPUState gdbstub: Change syscall callback argument to CPUState kvm: Change kvm_{insert,remove}_breakpoint() argument to CPUState cpu: Change cpu_single_step() argument to CPUState gdbstub: Update gdb_handlesig() and gdb_signalled() Coding Style cpu: Move singlestep_enabled field from CPU_COMMON to CPUState target-alpha: Copy implver to DisasContext target-alpha: Copy singlestep_enabled to DisasContext cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb() target-unicore32: Implement CPUClass::set_pc() target-moxie: Implement CPUClass::set_pc() target-m68k: Implement CPUClass::set_pc() ...
2013-07-23Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into ↵Anthony Liguori
staging QOM device refactorings * Avoid TYPE_* in VMStateDescription name * Replace some DO_UPCAST()s and FROM_SYSBUS()s with QOM casts * Limit legacy SCSI command line handling to non-hotplugged devices * Replace some SysBusDeviceClass::init with DeviceClass::realize # gpg: Signature made Mon 22 Jul 2013 06:31:42 PM CDT using RSA key ID 3E7E013F # gpg: Can't check signature: public key not found # By Hu Tao (26) and others # Via Andreas Färber * afaerber/tags/qom-devices-for-anthony: (55 commits) isa-bus: Drop isabus_bridge_init() since it does nothing ioapic: Use QOM realize for ioapic kvmvapic: Use QOM realize kvm/clock: Use QOM realize for kvmclock hpet: Use QOM realize for hpet scsi: Improve error propagation for scsi_bus_legacy_handle_cmdline() megasas: Legacy command line handling fix scsi/esp: Use QOM realize for scsi esp fw_cfg: Use QOM realize for fw_cfg ahci: Use QOM realize for ahci pflash_cfi02: Use QOM realize for pflash_cfi02 pflash_cfi01: Use QOM realize for pflash_cfi01 fdc: Improve error propagation for QOM realize fdc: Use QOM realize for fdc kvm/clock: QOM'ify some more hpet: QOM'ify some more scsi/esp: QOM'ify some more fwcfg: QOM'ify some more ahci: QOM'ify some more pflash-cfi02: QOM'ify some more ...
2013-07-23migration: add autoconvergence documentationJuan Quintela
This hunk got lost during merge. It is documentation. Spotted-by: Peter Lieven <lieven-lists@dlhnet.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23Fix real mode guest segments dpl value in savevmOrit Wasserman
Older KVM version put invalid value in the segments registers dpl field for real mode guests (0x3). This breaks migration from those hosts to hosts with unrestricted guest support. We detect it by checking CS dpl value for real mode guest and fix the dpl values of all the segment registers. Signed-off-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23Fix real mode guest migrationOrit Wasserman
Older KVM versions save CS dpl value to an invalid value for real mode guests (0x3). This patch detect this situation when loading CPU state and set all the segments dpl to zero. This will allow migration from older KVM on host without unrestricted guest to hosts with restricted guest support. For example migration from a Penryn host (with kernel 2.6.32) to a Westmere host (for real mode guest) will fail with "kvm: unhandled exit 80000021". Signed-off-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: account for the time spent in MIG_STATE_SETUP through QMPMichael R. Hines
Using the previous patches, we're now able to timestamp the SETUP state. Once we have this time, let the user know about it in the schema. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: introduce MIG_STATE_NONE and change MIG_STATE_SETUP state transitionMichael R. Hines
As described in the previous patch, until now, the MIG_STATE_SETUP state was not really a 'formal' state. It has been used as a 'zero' state (what we're calling 'NONE' here) and QEMU has been unconditionally transitioning into this state when the QMP migration command was called. Instead we want to introduce MIG_STATE_NONE, which is our starting state in the state machine, and then immediately transition into the MIG_STATE_SETUP state when the QMP migrate command is issued. In order to do this, we must delay the transition into MIG_STATE_ACTIVE until later in the migration_thread(). This is done to be able to timestamp the amount of time spent in the SETUP state for proper accounting to the user during an RDMA migration. Furthermore, the management software, until now, has never been aware of the existence of the SETUP state whatsoever. This must change, because, timing of this state implies that the state actually exists. These two patches cannot be separated because the 'query_migrate' QMP switch statement needs to know how to handle this new state transition. Reviewed-by: Juan Quintela <quintela@redhat.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: allow state transitions between other states besides ACTIVEMichael R. Hines
This patch is in preparation for the next ones: Until now the MIG_STATE_SETUP state was not really a 'formal' state. It has been used as a 'zero' state and QEMU has been unconditionally transitioning into this state when the QMP migrate command was called. In preparation for timing this state, we have to make this state a a 'real' state which actually gets transitioned from later in the migration_thread() from SETUP => ACTIVE, rather than just automatically dropping into this state at the beginninig of the migration. This means that the state transition function (migration_finish_set_state()) needs to be capable of transitioning from valid states _other_ than just MIG_STATE_ACTIVE. The function is in fact already capable of doing that, but was not allowing the old state to be a parameter specified as an input. This patch fixes that and only makes the transition if the current state matches the old state that the caller intended to transition from. Reviewed-by: Juan Quintela <quintela@redhat.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: send pc.ramMichael R. Hines
This takes advantages of the previous patches: 1. use the new QEMUFileOps hook 'save_page' 2. call out to the right accessor methods to invoke the iteration hooks defined in QEMUFileOps Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: core logicMichael R. Hines
Code that does need to be visible is kept well contained inside this file and this is the only new additional file to the entire patch. This file includes the entire protocol and interfaces required to perform RDMA migration. Also, the configure and Makefile modifications to link this file are included. Full documentation is in docs/rdma.txt Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: introduce ram_handle_compressed()Michael R. Hines
This gives RDMA shared access to madvise() on the destination side when an entire chunk is found to be zero. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: bugfix: ram_control_save_page()Michael R. Hines
We were not checking for a valid 'bytes_sent' pointer before accessing it. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23rdma: update documentation to reflect new unpin supportMichael R. Hines
As requested, the protocol now includes memory unpinning support. This has been implemented in a non-optimized manner, in such a way that one could devise an LRU or other workload-specific information on top of the basic mechanism to influence the way unpinning happens during runtime. The feature is not yet user-facing, and is thus can only be enabled at compile-time. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-23linux-user: Use X86CPU property to retrieve CPUID familyAndreas Färber
Avoids duplicating the calculation. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change gdb_register_coprocessor() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move gdb_regs field from CPU_COMMON to CPUStateAndreas Färber
Prepares for changing gdb_register_coprocessor() argument to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change GDBState::{c,g}_cpu and find_cpu() to CPUStateAndreas Färber
Use CPUState::env_ptr where still needed. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::memory_rw_debug() for target_memory_rw_debug()Andreas Färber
Make inline target_memory_rw_debug() always available and change its argument to CPUState. Let it check if CPUClass::memory_rw_debug provides a specialized callback and fall back to cpu_memory_rw_debug() otherwise. The only overriding implementation is for 32-bit sparc. This prepares for changing GDBState::g_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23exec: Change cpu_memory_rw_debug() argument to CPUStateAndreas Färber
Propagate X86CPU in kvmvapic for simplicity. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Turn cpu_get_phys_page_debug() into a CPUClass hookAndreas Färber
Change breakpoint_invalidate() argument to CPUState alongside. Since all targets now assign a softmmu-only field, we can drop helpers cpu_class_set_{do_unassigned_access,vmsd}() and device_class_set_vmsd(). Prepares for changing cpu_memory_rw_debug() argument to CPUState. Acked-by: Max Filippov <jcmvbkbc@gmail.com> (for xtensa) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change gdb_{read,write}_register() argument to CPUStateAndreas Färber
Use CPUState::env_ptr for now. Prepares for changing GDBState::g_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change gdb_handlesig() argument to CPUStateAndreas Färber
Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change syscall callback argument to CPUStateAndreas Färber
Callback implementations were specific to arm and m68k, so can easily cast to ARMCPU and M68kCPU respectively. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23kvm: Change kvm_{insert,remove}_breakpoint() argument to CPUStateAndreas Färber
CPUArchState is no longer directly used since converting CPU loops to CPUState. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Change cpu_single_step() argument to CPUStateAndreas Färber
Use CPUState::env_ptr for now. Needed for GdbState::c_cpu. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Update gdb_handlesig() and gdb_signalled() Coding StyleAndreas Färber
In particular reindent to 4 instead of 2 spaces. Prepares for changing cpu_single_step() argument in gdb_handlesig(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Move singlestep_enabled field from CPU_COMMON to CPUStateAndreas Färber
Prepares for changing cpu_single_step() argument to CPUState. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23target-alpha: Copy implver to DisasContextRichard Henderson
Which allows removing env from DisasContext. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23target-alpha: Copy singlestep_enabled to DisasContextRichard Henderson
Prepare for removing env from DisasContext. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()Andreas Färber
Where no extra implementation is needed, fall back to CPUClass::set_pc(). Acked-by: Michael Walle <michael@walle.cc> (for lm32) Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23target-unicore32: Implement CPUClass::set_pc()Andreas Färber
This adds support for GDB's c addr (Continue) and s addr (Single Step). Prepares for dropping cpu_pc_from_tb(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23target-moxie: Implement CPUClass::set_pc()Andreas Färber
This adds support for GDB's c addr (Continue) and s addr (Single Step). Prepares for dropping cpu_pc_from_tb(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23target-m68k: Implement CPUClass::set_pc()Andreas Färber
This adds support for GDB's c addr (Continue) and s addr (Single Step). Prepares for dropping cpu_pc_from_tb(). Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce CPUClass::set_pc() for gdb_set_cpu_pc()Andreas Färber
This moves setting the Program Counter from gdbstub into target code. Use vaddr type as upper-bound replacement for target_ulong. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23HACKING: Document vaddr type usagePeter Maydell
Also extend documentation of target_ulong and abi_ulong. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23cpu: Introduce vaddr typeAndreas Färber
vaddr is to target_ulong what uintmax_t is to unsigned int. Its purpose is to allow turning per-target functions with target_ulong arguments into CPUClass hooks. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23gdbstub: Change GDBState::query_cpu to CPUStateAndreas Färber
Since first_cpu/next_cpu are CPUState, CPUArchState is no longer needed. This resolves a NULL pointer dereference of query_cpu, introduced with commit 182735efaf956ccab50b6d74a4fed163e0f35660 and reported by TeLeMan and Max Filippov. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23isa-bus: Drop isabus_bridge_init() since it does nothingHu Tao
This works since commit 4ce5dae88ecf2bafa0cd663de7e923728b1b3672. Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Edited] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23ioapic: Use QOM realize for ioapicHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Tweaked error message] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23kvmvapic: Use QOM realizeHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Renamed variable] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23kvm/clock: Use QOM realize for kvmclockHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23hpet: Use QOM realize for hpetHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Avoided SYS_BUS_DEVICE() in loop] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23scsi: Improve error propagation for scsi_bus_legacy_handle_cmdline()Andreas Färber
Let scsi_bus_legacy_add_drive() and scsi_bus_legacy_handle_cmdline() return an Error**. Prepare qdev initfns for QOM realize error model. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23megasas: Legacy command line handling fixAndreas Färber
Only apply legacy command line handling when the device has not been hot-plugged. Propagate failure of legacy command line handling. Cc: qemu-stable@nongnu.org Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23scsi/esp: Use QOM realize for scsi espHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Drop sysbus_esp_init()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23fw_cfg: Use QOM realize for fw_cfgHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Moved sysbus_init_mmio() to instance_init, renamed variable] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23ahci: Use QOM realize for ahciHu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> [AF: Avoided repeated SYS_BUS_DEVICE() casts] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23pflash_cfi02: Use QOM realize for pflash_cfi02Hu Tao
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
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