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6a8c0fc887
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196 Commits

Author SHA1 Message Date
Wei Liu
6a8c0fc887 hypervisor: provide a generic FpuState structure 
Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-18 22:15:30 +01:00
Wei Liu
08135fa085 hypervisor: provide a generic CpudIdEntry structure 
Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-18 22:15:30 +01:00
Wei Liu
45fbf840db hypervisor, vmm: move away from CpuId type 
CpuId is an alias type for the flexible array structure type over
CpuIdEntry. The type itself and the type of the element in the array
portion are tied to the underlying hypervisor.

Switch to using CpuIdEntry slice or vector directly. The construction of
CpuId type is left to hypervisors.

This allows us to decouple CpuIdEntry from hypervisors more easily.

No functional change intended.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-18 22:15:30 +01:00
Wei Liu
f1ab86fecb hypervisor: x86: provide a generic SpecialRegisters structure 
Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-15 10:21:43 +01:00
Wei Liu
75797827d5 hypervisor: x86: provide a generic SegmentRegister structure 
And drop SegmentRegisterOps since it is no longer required.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-15 10:21:43 +01:00
Wei Liu
8b7781e267 hypervisor: x86: provide a generic StandardRegisters structure 
We only need to do this for x86 since MSHV does not have aarch64 support
yet. This reduces unnecessary code churn.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-15 10:21:43 +01:00
Michael Zhao
2d8635f04a hypervisor: Refactor system_registers on AArch64 
Function `system_registers` took mutable vector reference and modified
the vector content. Now change the definition to `get/set` style.
And rename to `get/set_sys_regs` to align with other functions.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
 2022-07-14 22:55:19 +08:00
Michael Zhao
c445513976 hypervisor: Refactor core_registers on AArch64 
On AArch64, the function `core_registers` and `set_core_registers` are
the same thing of `get/set_regs` on x86_64. Now the names are aligned.
This will benefit supporting `gdb`.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
 2022-07-14 22:55:19 +08:00
Wei Liu
84bbaf06d1 hypervisor: turn boot_msr_entries into a trait method 
This allows dispatching to either KVM or MSHV automatically.

No functional change.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-07-08 16:49:58 +01:00
Rob Bradford
93237f0106 vmm: Set MADT "Online Capable" flag 
The Linux kernel now checks for this before marking CPUs as
hotpluggable:

commit aa06e20f1be628186f0c2dcec09ea0009eb69778
Author: Mario Limonciello <mario.limonciello@amd.com>
Date:   Wed Sep 8 16:41:46 2021 -0500

    x86/ACPI: Don't add CPUs that are not online capable

    A number of systems are showing "hotplug capable" CPUs when they
    are not really hotpluggable.  This is because the MADT has extra
    CPU entries to support different CPUs that may be inserted into
    the socket with different numbers of cores.

    Starting with ACPI 6.3 the spec has an Online Capable bit in the
    MADT used to determine whether or not a CPU is hotplug capable
    when the enabled bit is not set.

    Link: https://uefi.org/htmlspecs/ACPI_Spec_6_4_html/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html?#local-apic-flags
    Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-07-01 18:45:05 +01:00
Rob Bradford
65ec6631fb vmm: cpu: Store the vCPU snapshots in ascending order 
The snapshots are stored in a BTree which is ordered however as the ids
are strings lexical ordering places "11" ahead of "2". So encode the
vCPU id with zero padding so it is lexically sorted.

This fixes issues with CPU restore on aarch64.

See: #4239

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-06-27 16:20:57 +01:00
Rob Bradford
94fb9f817d vmm: Fix clippy issues under "guest_debug" feature 
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-06-08 11:40:56 +01:00
Michael Zhao
a7a15d56dd aarch64: Move setup_regs to hypervisor 
`setup_regs` of AArch64 calls KVM sepecific code. Now move it to
`hypervisor` crate.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
 2022-06-06 11:07:46 +01:00
Sebastien Boeuf
65dc1c83a9 vmm: cpu: Save and restore CPU states during snapshot/restore 
Based on recent KVM host patches (merged in Linux 5.16), it's forbidden
to call into KVM_SET_CPUID2 after the first successful KVM_RUN returned.
That means saving CPU states during the pause sequence, and restoring
these states during the resume sequence will not work with the current
design starting with kernel version 5.16.

In order to solve this problem, let's simply move the save/restore logic
to the snapshot/restore sequences rather than the pause/resume ones.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
 2022-06-06 11:07:29 +01:00
Yi Wang
ccb604e1e1 vmm: add cpu segment note for coredump 
The crash tool use a special note segment which named 'QEMU' to
analyze kaslr info and so on. If we don't add the 'QEMU' note
segment, crash tool can't find linux version to move on.

For now, the most convenient way is to add 'QEMU' note segment to
make crash tool happy.

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
 2022-05-30 13:41:40 +02:00
Rob Bradford
16a9882153 vmm: cpu: tdx: Don't use fd suffix for something not an FD 
The hypervisor::Vcpu is the abstraction over the fd.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-13 15:39:22 +02:00
Rob Bradford
218be2642e hypervisor: Explicitly pub use at the hypervisor crate top-level 
Explicitly re-export types from the hypervisor specific modules. This
makes it much clearer what the common functionality that is exposed is.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-13 15:39:22 +02:00
Rob Bradford
cd0df05808 vmm, arch: CpuId is x86_64 specific so import from the x86_64 module 
It will be removed as a top-level export from the hypervisor crate.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-13 15:39:22 +02:00
Rob Bradford
d3f66f8702 hypervisor: Make vm module private 
And thus only export what is necessary through a `pub use`. This is
consistent with some of the other modules and makes it easier to
understand what the external interface of the hypervisor crate is.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-13 15:39:22 +02:00
Rob Bradford
387d56879b vmm, hypervisor: Clean up nomenclature around offloading VM operations 
The trait and functionality is about operations on the VM rather than
the VMM so should be named appropriately. This clashed with with
existing struct for the concrete implementation that was renamed
appropriately.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-10 13:10:01 +01:00
Rob Bradford
c47e3b8689 gdb: Do not use VmmOps for memory manipulation 
We don't use the VmmOps trait directly for manipulating memory in the
core of the VMM as it's really designed for the MSHV crate to handle
instruction decoding. As I plan to make this trait MSHV specific to
allow reduced locking for MMIO and PIO handling when running on KVM this
use should be removed.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-05-04 11:33:02 -07:00
Rob Bradford
0270d697ab vmm: cpu: Improve Error reporting 
Remove unused enum members, improve error messages and implement
thiserror::Error.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-04-22 17:46:41 +01:00
Michael Zhao
656425a328 aarch64: Align the data types in layout 
Some addresses defined in `layout.rs` were of type `GuestAddress`, and
are `u64`. Now align the types of all the `*_START` definitions to
`GuestAddress`.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
 2022-04-08 11:08:43 -07:00
Rob Bradford
7fd76eff05 vmm: Don't error if live resizing is not possible 
The introduction of a error if live resizing is not possible is a
regression compared to the original behaviour where the new size would
be stored in the config and reflected in the next boot. This behaviour
was also inconsistent with the effect of resizing with no VM booted.

Instead of generating an error allow the code to go ahead and update the
config so that the new size will be available upon the reboot.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-31 17:04:53 +01:00
Fabiano Fidêncio
2c8045343c vmm,cpu: Deny resizing only if the vcpu amount has changed 
188078467d made clear that resize should
only happen when dealing with a "dynamic" CpuManager.  Although this is
very much correct, it causes a regression on Kata Containers (and on any
other consumer of Cloud Hypervisor) in cases where a resize would be
triggered but the vCPUs values wouldn't be changed.

There's no doubt Kata Containers could do better and do not call a
resize in such situations, and that's something that should **also** be
solved there.  However, we should also work this around on Cloud
Hypervisor side as it introduces a regression with the current Kata
Containers code.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
 2022-03-30 21:29:08 +01:00
Rob Bradford
7c0cf8cc23 arch, devices, vmm: Remove "acpi" feature gate 
Compile this feature in by default as it's well supported on both
aarch64 and x86_64 and we only officially support using it (no non-acpi
binaries are available.)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-28 09:18:29 -07:00
William Douglas
6b0df31e5d vmm: Add support for enabling AMX in vm guests 
AMX is an x86 extension adding hardware units for matrix
operations (int and float dot products). The goal of the extension is
to provide performance enhancements for these common operations.

On Linux, AMX requires requesting the permission from the kernel prior
to use. Guests wanting to make use of the feature need to have the
request made prior to starting the vm.

This change then adds the first --cpus features option amx that when
passed will enable AMX usage for guests (needs a 5.17+ kernel) or
exits with failure.

The activation is done in the CpuManager of the VMM thread as it
allows migration and snapshot/restore to work fairly painlessly for
AMX enabled workloads.

Signed-off-by: William Douglas <william.douglas@intel.com>
 2022-03-25 14:11:54 -07:00
Rob Bradford
f6dfb42a64 vmm: cpu: Don't place CpuManager on MMIO bus when non-dynamic 
This is now consistent with not supplying the _CRS for the device when
CpuManager is not dynamic.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-24 13:17:39 +00:00
Rob Bradford
7324b0e514 vmm: cpu: Only include hotplug/unplug related AML code if dynamic 
This will significantly reduce the size of the DSDT and the effort
required to parse them if there is no requirement to support
hotplug/unplug.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-17 13:46:21 +00:00
Rob Bradford
188078467d vmm: cpu: Deny resizing if CpuManager is not dynamic 
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-17 13:46:21 +00:00
Rob Bradford
e5cb13588b vmm: cpu: Add concept of making CpuManager dynamic 
If the CpuManager is dynamic it devices CPUs can be
hotplugged/unplugged.

Since TDX does not support CPU hotplug this is currently the only
determinator as to whether the CpuManager is dynamic.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-03-17 13:46:21 +00:00
Akira Moroo
2451c4d833 vmm: Implement GDB event handler to enable --gdb flag 
This commit adds event fds and the event handler to send/receive
requests and responses from the GDB thread. It also adds `--gdb` flag to
enable GDB stub feature.

Signed-off-by: Akira Moroo <retrage01@gmail.com>
 2022-02-23 11:16:09 +00:00
Akira Moroo
f1c4705638 vmm: Add Debuggable trait implementation 
This commit adds initial gdb.rs implementation for `Debuggable` trait to
describe a debuggable component. Some part of the trait bound
implementations is based on the crosvm GDB stub code [1].

[1] https://github.com/google/crosvm/blob/main/src/gdb.rs

Signed-off-by: Akira Moroo <retrage01@gmail.com>
 2022-02-23 11:16:09 +00:00
Michael Zhao
0fa31539eb vmm: Add default VCPU topology in PPTT on AArch64 
When VCPU topology is not specified, fill the PPTT with default setting.

Signed-off-by: Michael Zhao <michael.zhao@arm.com>
 2022-02-22 09:21:00 +08:00
Sebastien Boeuf
0ac094c0d1 vmm: Handle TDX hypercalls with INVALID_OPERAND 
Based on the helpers from the hypervisor crate, the VMM can identify
what type of hypercall has been issued through the KVM_EXIT_TDX reason.

For now, we only log warnings and set the status to INVALID_OPERAND
since these hypercalls aren't supported. The proper handling will be
implemented later.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
 2022-02-18 14:41:07 +01:00
Sebastien Boeuf
a3dfe726f8 vmm: cpu: Avoid useless cloning of Arc<Mutex<Vcpu>> 
Since the object returned from CpuManager.create_vcpu() is never used,
we can avoid the cloning of this object.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
 2022-02-18 14:41:07 +01:00
Rob Bradford
507912385a vmm: Ensure that PIO and MMIO exits complete before pausing 
As per this kernel documentation:

      For KVM_EXIT_IO, KVM_EXIT_MMIO, KVM_EXIT_OSI, KVM_EXIT_PAPR, KVM_EXIT_XEN,
      KVM_EXIT_EPR, KVM_EXIT_X86_RDMSR and KVM_EXIT_X86_WRMSR the corresponding
      operations are complete (and guest state is consistent) only after userspace
      has re-entered the kernel with KVM_RUN.  The kernel side will first finish
      incomplete operations and then check for pending signals.

      The pending state of the operation is not preserved in state which is
      visible to userspace, thus userspace should ensure that the operation is
      completed before performing a live migration.  Userspace can re-enter the
      guest with an unmasked signal pending or with the immediate_exit field set
      to complete pending operations without allowing any further instructions
      to be executed.

Since we capture the state as part of the pause and override it as part
of the resume we must ensure the state is consistent otherwise we will
lose the results of the MMIO or PIO operation that caused the exit from
which we paused.

Fixes: #3658

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-02-07 15:26:22 +00:00
Jianyong Wu
53060874a7 vmm: Init PMU for vcpu when create vm 
PMU is needed in guest for performance profiling, thus should be
enabled.

Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
 2022-01-21 17:59:36 +08:00
Henry Wang
14ba3f68d3 vmm: cpu: Remove unused import in unit tests 
These are the leftovers from the commit 8155be2:
arch: aarch64: vm_memory is not required when configuring vcpu

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
 2022-01-18 20:34:50 +08:00
Wei Liu
8155be2e6b arch: aarch64: vm_memory is not required when configuring vcpu 
Drop the unused parameter throughout the code base.

Also take the chance to drop a needless clone.

No functional change intended.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
 2022-01-14 16:03:12 -08:00
Rob Bradford
d57c49664f vmm: Fix potential deadlock in CpuManager 
Remove requirement for CpuManager to lock the Vcpu when starting the
vCPU as the numerical id corresponds to the index in the the vector.
This avoids a potential lock inversion between the Vcpu and CpuManager.

WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=30497)
  Cycle in lock order graph: M48 (0x7b0c00001aa0) => M121 (0x7b0c000022b0) => M48

  Mutex M121 acquired here while holding mutex M48 in thread T1:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662ff4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915de)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:h14cfa3c8f5ba878a /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36ca3b)
    #4 vmm::cpu::CpuManager::start_vcpu::h290fdbb4b7124ec5 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:710:22 (cloud-hypervisor+0x375023)
    #5 vmm::cpu::CpuManager::activate_vcpus::h2eab380826588391 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:902:13 (cloud-hypervisor+0x376b7b)
    #6 vmm::cpu::CpuManager::start_boot_vcpus::hd80cafe6aa4e8279 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:937:9 (cloud-hypervisor+0x3773af)
    #7 vmm::vm::Vm:👢:hc2ca6b16f996267b /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:2063:9 (cloud-hypervisor+0x343d57)
    #8 vmm::Vmm::vm_boot::h06bdf54b95d5e14f /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:397:13 (cloud-hypervisor+0x2e5f45)
    #9 vmm::Vmm::control_loop::h40c9b48c7b800bed /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:1299:48 (cloud-hypervisor+0x2f44e0)
    #10 vmm::start_vmm_thread::_$u7b$$u7b$closure$u7d$$u7d$::h016d2f7cff698175 /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:263:17 (cloud-hypervisor+0x1ddae0)
    #11 std::sys_common::backtrace::__rust_begin_short_backtrace::h7fd2df3e7cfba503 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65926a)
    #12 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h89880b05fe892d7e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x440a3e)
    #13 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h487382524d80571f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd0fe)
    #14 std::panicking::try::do_call::h1d9c2ccdc39f3322 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2d71)
    #15 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #16 std::panicking::try::h251306df23d21913 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1af9)
    #17 std::panic::catch_unwind::h2a9ac2fb12c3c64e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b75e)
    #18 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h10f4c340611b55e4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43f343)
    #19 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::hdd9b37241caf97b3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3cef45)
    #20 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #21 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #22 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d692)

  Mutex M48 previously acquired by the same thread here:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662ff4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915de)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:hecf671add5fe1762 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36d1cb)
    #4 vmm::vm::Vm:👢:hc2ca6b16f996267b /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:2063:9 (cloud-hypervisor+0x343cd1)
    #5 vmm::Vmm::vm_boot::h06bdf54b95d5e14f /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:397:13 (cloud-hypervisor+0x2e5f45)
    #6 vmm::Vmm::control_loop::h40c9b48c7b800bed /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:1299:48 (cloud-hypervisor+0x2f44e0)
    #7 vmm::start_vmm_thread::_$u7b$$u7b$closure$u7d$$u7d$::h016d2f7cff698175 /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:263:17 (cloud-hypervisor+0x1ddae0)
    #8 std::sys_common::backtrace::__rust_begin_short_backtrace::h7fd2df3e7cfba503 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65926a)
    #9 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h89880b05fe892d7e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x440a3e)
    #10 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h487382524d80571f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd0fe)
    #11 std::panicking::try::do_call::h1d9c2ccdc39f3322 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2d71)
    #12 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #13 std::panicking::try::h251306df23d21913 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1af9)
    #14 std::panic::catch_unwind::h2a9ac2fb12c3c64e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b75e)
    #15 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h10f4c340611b55e4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43f343)
    #16 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::hdd9b37241caf97b3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3cef45)
    #17 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #18 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #19 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d692)

  Mutex M48 acquired here while holding mutex M121 in thread T4:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:h967991d72ceb6eb0 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0xd94df4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::h8779639163126a21 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0xd90cce)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:hd85239d207beb12f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0xd6e9ba)
    #4 vm_device:🚌:Bus::write::hf20f991e71af3199 /home/rob/src/cloud-hypervisor/vm-device/src/bus.rs:235:16 (cloud-hypervisor+0xd8dd2d)
    #5 _$LT$vmm..vm..VmOps$u20$as$u20$hypervisor..vm..VmmOps$GT$::mmio_write::hc759194aaebc7399 /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:424:15 (cloud-hypervisor+0x32db5f)
    #6 _$LT$hypervisor..kvm..KvmVcpu$u20$as$u20$hypervisor..cpu..Vcpu$GT$::run::h94762dfba6642fb2 /home/rob/src/cloud-hypervisor/hypervisor/src/kvm/mod.rs:1003:32 (cloud-hypervisor+0xcc3ed8)
    #7 vmm::cpu::Vcpu::run::hd5cf042157f95bea /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:327:9 (cloud-hypervisor+0x370234)
    #8 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h37e4dd8619b3a5e5 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:813:35 (cloud-hypervisor+0x47785b)
    #9 std::panicking::try::do_call::h093e4d1434150d77 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2aea)
    #10 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #11 std::panicking::try::hee9535cb997282b4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d268f)
    #12 std::panic::catch_unwind::he3908c4d08a8a028 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57baf9)
    #13 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::h29472aaa3a600231 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:782:21 (cloud-hypervisor+0x477156)
    #14 std::sys_common::backtrace::__rust_begin_short_backtrace::hcfc2f02361c98808 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65932b)
    #15 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h08b82db41d7af2f2 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x4408ef)
    #16 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h7ebad9d94e64fa5f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd1df)
    #17 std::panicking::try::do_call::h121fafbdf5cf84af /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2b81)
    #18 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #19 std::panicking::try::h79e25f019cd90522 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1e1f)
    #20 std::panic::catch_unwind::h5a0619a53bbd611d /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b8ff)
    #21 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h1cfd689c9d362e48 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43fafb)
    #22 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::h6642b1b3a2289640 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3ced55)
    #23 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #24 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #25 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d692)

  Mutex M121 previously acquired by the same thread here:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662ff4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915de)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:h14cfa3c8f5ba878a /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36ca3b)
    #4 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h37e4dd8619b3a5e5 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:813:35 (cloud-hypervisor+0x4777c9)
    #5 std::panicking::try::do_call::h093e4d1434150d77 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2aea)
    #6 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #7 std::panicking::try::hee9535cb997282b4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d268f)
    #8 std::panic::catch_unwind::he3908c4d08a8a028 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57baf9)
    #9 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::h29472aaa3a600231 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:782:21 (cloud-hypervisor+0x477156)
    #10 std::sys_common::backtrace::__rust_begin_short_backtrace::hcfc2f02361c98808 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65932b)
    #11 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h08b82db41d7af2f2 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x4408ef)
    #12 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h7ebad9d94e64fa5f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd1df)
    #13 std::panicking::try::do_call::h121fafbdf5cf84af /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2b81)
    #14 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3db8)
    #15 std::panicking::try::h79e25f019cd90522 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1e1f)
    #16 std::panic::catch_unwind::h5a0619a53bbd611d /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b8ff)
    #17 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h1cfd689c9d362e48 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43fafb)
    #18 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::h6642b1b3a2289640 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3ced55)
    #19 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #20 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d692)
    #21 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d692)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-01-06 09:59:36 +01:00
Rob Bradford
2f46647ecc vmm: Fix potential deadlock in CpuManager 
Delay creating the mutex on the Vcpu until later preventing a potential
lock inversion between CpuManager and the Vcpu.

WARNING: ThreadSanitizer: lock-order-inversion (potential deadlock) (pid=28799)
  Cycle in lock order graph: M48 (0x7b0c00001aa0) => M117 (0x7b0c00002280) => M48

  Mutex M117 acquired here while holding mutex M48 in thread T1:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662fc4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915ae)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:h14cfa3c8f5ba878a /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36c82b)
    #4 vmm::cpu::CpuManager::create_vcpu::hd5878da6efae8d68 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:665:13 (cloud-hypervisor+0x3743de)
    #5 vmm::cpu::CpuManager::create_vcpus::h3c747553a1d5bc4e /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:704:13 (cloud-hypervisor+0x374d87)
    #6 vmm::cpu::CpuManager::create_boot_vcpus::he8eeca10785067c1 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:938:9 (cloud-hypervisor+0x377305)
    #7 vmm::vm::Vm:👢:hc2ca6b16f996267b /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:1986:9 (cloud-hypervisor+0x3432d3)
    #8 vmm::Vmm::vm_boot::h06bdf54b95d5e14f /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:397:13 (cloud-hypervisor+0x2e5d35)
    #9 vmm::Vmm::control_loop::h40c9b48c7b800bed /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:1299:48 (cloud-hypervisor+0x2f42d0)
    #10 vmm::start_vmm_thread::_$u7b$$u7b$closure$u7d$$u7d$::h016d2f7cff698175 /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:263:17 (cloud-hypervisor+0x1dd8d0)
    #11 std::sys_common::backtrace::__rust_begin_short_backtrace::h7fd2df3e7cfba503 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65923a)
    #12 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h89880b05fe892d7e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x440a0e)
    #13 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h487382524d80571f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd0ce)
    #14 std::panicking::try::do_call::h1d9c2ccdc39f3322 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2d41)
    #15 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #16 std::panicking::try::h251306df23d21913 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1ac9)
    #17 std::panic::catch_unwind::h2a9ac2fb12c3c64e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b72e)
    #18 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h10f4c340611b55e4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43f313)
    #19 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::hdd9b37241caf97b3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3cef15)
    #20 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #21 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #22 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d662)

  Mutex M48 previously acquired by the same thread here:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662fc4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915ae)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:hecf671add5fe1762 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36cfbb)
    #4 vmm::vm::Vm:👢:hc2ca6b16f996267b /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:1986:9 (cloud-hypervisor+0x343237)
    #5 vmm::Vmm::vm_boot::h06bdf54b95d5e14f /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:397:13 (cloud-hypervisor+0x2e5d35)
    #6 vmm::Vmm::control_loop::h40c9b48c7b800bed /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:1299:48 (cloud-hypervisor+0x2f42d0)
    #7 vmm::start_vmm_thread::_$u7b$$u7b$closure$u7d$$u7d$::h016d2f7cff698175 /home/rob/src/cloud-hypervisor/vmm/src/lib.rs:263:17 (cloud-hypervisor+0x1dd8d0)
    #8 std::sys_common::backtrace::__rust_begin_short_backtrace::h7fd2df3e7cfba503 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x65923a)
    #9 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h89880b05fe892d7e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x440a0e)
    #10 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h487382524d80571f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd0ce)
    #11 std::panicking::try::do_call::h1d9c2ccdc39f3322 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2d41)
    #12 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #13 std::panicking::try::h251306df23d21913 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1ac9)
    #14 std::panic::catch_unwind::h2a9ac2fb12c3c64e /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b72e)
    #15 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h10f4c340611b55e4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43f313)
    #16 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::hdd9b37241caf97b3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3cef15)
    #17 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #18 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #19 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d662)

  Mutex M48 acquired here while holding mutex M117 in thread T3:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:h967991d72ceb6eb0 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0xd94dc4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::h8779639163126a21 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0xd90c9e)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:hd85239d207beb12f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0xd6e98a)
    #4 vm_device:🚌:Bus::write::hf20f991e71af3199 /home/rob/src/cloud-hypervisor/vm-device/src/bus.rs:235:16 (cloud-hypervisor+0xd8dcfd)
    #5 _$LT$vmm..vm..VmOps$u20$as$u20$hypervisor..vm..VmmOps$GT$::mmio_write::hc759194aaebc7399 /home/rob/src/cloud-hypervisor/vmm/src/vm.rs:424:15 (cloud-hypervisor+0x32d94f)
    #6 _$LT$hypervisor..kvm..KvmVcpu$u20$as$u20$hypervisor..cpu..Vcpu$GT$::run::h94762dfba6642fb2 /home/rob/src/cloud-hypervisor/hypervisor/src/kvm/mod.rs:1003:32 (cloud-hypervisor+0xcc3ea8)
    #7 vmm::cpu::Vcpu::run::hd5cf042157f95bea /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:327:9 (cloud-hypervisor+0x3700c4)
    #8 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h37e4dd8619b3a5e5 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:819:35 (cloud-hypervisor+0x47782b)
    #9 std::panicking::try::do_call::h093e4d1434150d77 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2aba)
    #10 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #11 std::panicking::try::hee9535cb997282b4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d265f)
    #12 std::panic::catch_unwind::he3908c4d08a8a028 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57bac9)
    #13 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::h29472aaa3a600231 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:788:21 (cloud-hypervisor+0x477126)
    #14 std::sys_common::backtrace::__rust_begin_short_backtrace::hcfc2f02361c98808 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x6592fb)
    #15 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h08b82db41d7af2f2 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x4408bf)
    #16 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h7ebad9d94e64fa5f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd1af)
    #17 std::panicking::try::do_call::h121fafbdf5cf84af /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2b51)
    #18 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #19 std::panicking::try::h79e25f019cd90522 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1def)
    #20 std::panic::catch_unwind::h5a0619a53bbd611d /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b8cf)
    #21 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h1cfd689c9d362e48 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43facb)
    #22 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::h6642b1b3a2289640 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3ced25)
    #23 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #24 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #25 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d662)

  Mutex M117 previously acquired by the same thread here:
    #0 pthread_mutex_lock /rustc/llvm/src/llvm-project/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:4249:3 (cloud-hypervisor+0x9c368)
    #1 std::sys::unix::mutex::Mutex:🔒:hcd1b9aa06ff775d3 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/mutex.rs:63:17 (cloud-hypervisor+0x662fc4)
    #2 std::sys_common::mutex::MovableMutex::raw_lock::hff98d0b036469bca /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/mutex.rs:76:18 (cloud-hypervisor+0x4915ae)
    #3 std::sync::mutex::Mutex$LT$T$GT$:🔒:h14cfa3c8f5ba878a /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sync/mutex.rs:267:13 (cloud-hypervisor+0x36c82b)
    #4 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h37e4dd8619b3a5e5 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:819:35 (cloud-hypervisor+0x477799)
    #5 std::panicking::try::do_call::h093e4d1434150d77 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2aba)
    #6 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #7 std::panicking::try::hee9535cb997282b4 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d265f)
    #8 std::panic::catch_unwind::he3908c4d08a8a028 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57bac9)
    #9 vmm::cpu::CpuManager::start_vcpu::_$u7b$$u7b$closure$u7d$$u7d$::h29472aaa3a600231 /home/rob/src/cloud-hypervisor/vmm/src/cpu.rs:788:21 (cloud-hypervisor+0x477126)
    #10 std::sys_common::backtrace::__rust_begin_short_backtrace::hcfc2f02361c98808 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys_common/backtrace.rs:123:18 (cloud-hypervisor+0x6592fb)
    #11 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h08b82db41d7af2f2 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:477:17 (cloud-hypervisor+0x4408bf)
    #12 _$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h7ebad9d94e64fa5f /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/panic/unwind_safe.rs:271:9 (cloud-hypervisor+0x6dd1af)
    #13 std::panicking::try::do_call::h121fafbdf5cf84af /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:406:40 (cloud-hypervisor+0x6d2b51)
    #14 __rust_try 3hkmq3dzyyv5ejsx (cloud-hypervisor+0x6d3d88)
    #15 std::panicking::try::h79e25f019cd90522 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panicking.rs:370:19 (cloud-hypervisor+0x6d1def)
    #16 std::panic::catch_unwind::h5a0619a53bbd611d /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/panic.rs:133:14 (cloud-hypervisor+0x57b8cf)
    #17 std:🧵:Builder::spawn_unchecked::_$u7b$$u7b$closure$u7d$$u7d$::h1cfd689c9d362e48 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/thread/mod.rs:476:30 (cloud-hypervisor+0x43facb)
    #18 core::ops::function::FnOnce::call_once$u7b$$u7b$vtable.shim$u7d$$u7d$::h6642b1b3a2289640 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/core/src/ops/function.rs:227:5 (cloud-hypervisor+0x3ced25)
    #19 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::ha5022a6bb7833f62 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #20 _$LT$alloc..boxed..Box$LT$F$C$A$GT$$u20$as$u20$core..ops..function..FnOnce$LT$Args$GT$$GT$::call_once::h481697829cbc6746 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/alloc/src/boxed.rs:1854:9 (cloud-hypervisor+0x119d662)
    #21 std::sys::unix:🧵:Thread:🆕:thread_start::h6fad62c4c393bbe7 /rustc/7d6f948173ccb18822bab13d548c65632db5f0aa/library/std/src/sys/unix/thread.rs:108:17 (cloud-hypervisor+0x119d662)

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2022-01-06 09:59:36 +01:00
Sebastien Boeuf
932c8c9713 vmm: Add CPU affinity support 
With the introduction of a new option `affinity` to the `cpus`
parameter, Cloud Hypervisor can now let the user choose the set
of host CPUs where to run each vCPU.

This is useful when trying to achieve CPU pinning, as well as making
sure the VM runs on a specific NUMA node.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
 2021-11-12 09:40:37 +00:00
Rob Bradford
986e43f899 vmm: cpu: Port CpuManager to Aml::append_aml_bytes() 
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-11-08 16:46:30 +00:00
Rob Bradford
def98faf37 vmm, vm-allocator: Introduce an allocator for platform devices 
This allocator allocates 64-bit MMIO addresses for use with platform
devices e.g. ACPI control devices and ensures there is no overlap with
PCI address space ranges which can cause issues with PCI device
remapping.

Use this allocator the ACPI platform devices.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-11-02 16:55:42 +00:00
Rob Bradford
83066cf58e vmm: Set a default maximum physical address size 
When using PVH for booting (which we use for all firmwares and direct
kernel boot) the Linux kernel does not configure LA57 correctly. As such
we need to limit the address space to the maximum 4-level paging address
space.

If the user knows that their guest image can take advantage of the
5-level addressing and they need it for their workload then they can
increase the physical address space appropriately.

This PR removes the TDX specific handling as the new address space limit
is below the one that that code specified.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-10-01 08:59:15 -07:00
Rob Bradford
bdc44cd8bc vmm: cpu: Increase robustness of CpuManager control device 
See: #1289

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-09-10 10:22:05 -07:00
Rob Bradford
e475b12cf7 virtio-devices, vmm: Upgrade restore related messages to info!() 
These happen only sporadically so can be included at the info!() level.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-09-03 09:30:55 -07:00
Rob Bradford
968902dfec devices, vmm: Upgrade exit reasons to info!() level debugging 
These statements are useful for understanding the cause of reset or
shutdown of the VM and are not spammy so should be included at info!()
level.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
 2021-09-03 09:30:55 -07:00
Bo Chen
7d38a1848b virtio-devices, vmm: Fix the '--seccomp false' option 
We are relying on applying empty 'seccomp' filters to support the
'--seccomp false' option, which will be treated as an error with the
updated 'seccompiler' crate. This patch fixes this issue by explicitly
checking whether the 'seccomp' filter is empty before applying the
filter.

Signed-off-by: Bo Chen <chen.bo@intel.com>
 2021-08-18 10:42:19 +02:00