251 lines
6.5 KiB
ReStructuredText
251 lines
6.5 KiB
ReStructuredText
.. _acrnshell:
|
|
|
|
ACRN Shell Commands
|
|
###################
|
|
|
|
The ACRN hypervisor shell supports the following commands:
|
|
|
|
.. list-table::
|
|
:header-rows: 1
|
|
:widths: 40 60
|
|
|
|
* - Command (and parameters)
|
|
- Description
|
|
* - help
|
|
- Display information about supported hypervisor shell commands
|
|
* - version
|
|
- Display the HV version information
|
|
* - vm_list
|
|
- List all VMs, displaying the VM UUID, ID, name, and state ("Started"=running)
|
|
* - vcpu_list
|
|
- List all vCPUs in all VMs
|
|
* - vcpu_dumpreg <vm_id> <vcpu_id>
|
|
- Dump registers for a specific vCPU
|
|
* - dump_host_mem <hva> <length>
|
|
- Dump the host memory region as specified by the start of the region ``hva`` (in hexadecimal)
|
|
and its length ``length`` (in bytes, decimal number).
|
|
* - dump_guest_mem <vm_id> <gva> <length>
|
|
- Dump a User VM (guest) memory region based on the VM ID (``vm_id``, in decimal),
|
|
the start of the memory region ``gva`` (in hexadecimal) and its length ``length`` (in bytes, decimal number).
|
|
* - vm_console <vm_id>
|
|
- Switch to the VM's console. Use :kbd:`Ctrl+Spacebar` to return to the ACRN
|
|
shell console
|
|
* - int
|
|
- List interrupt information per CPU
|
|
* - pt
|
|
- Show pass-through device information
|
|
* - vioapic <vm_id>
|
|
- Show virtual IOAPIC (vIOAPIC) information for a specific VM
|
|
* - dump_ioapic
|
|
- Show native IOAPIC information
|
|
* - loglevel <console_loglevel> <mem_loglevel> <npk_loglevel>
|
|
- * If no parameters are given, the command will return the level of
|
|
logging for the console, memory and npk
|
|
* Give (up to) three parameters between ``0`` (none) and ``6`` (verbose)
|
|
to set the loglevel for the console, memory, and npk (in
|
|
that order). If less than three parameters are given, the
|
|
loglevels for the remaining areas will not be changed
|
|
* - cpuid <leaf> [subleaf]
|
|
- Display the CPUID leaf [subleaf], in hexadecimal
|
|
* - rdmsr [-p<pcpu_id>] <msr_index>
|
|
- Read the Model-Specific Register (MSR) at index ``msr_index`` (in
|
|
hexadecimal) for CPU ID ``pcpu_id``
|
|
* - wrmsr [-p<pcpu_id>] <msr_index> <value>
|
|
- Write ``value`` (in hexadecimal) to the Model-Specific Register (MSR) at
|
|
index ``msr_index`` (in hexadecimal) for CPU ID ``pcpu_id``
|
|
|
|
Command examples
|
|
****************
|
|
|
|
The following sections provide further details and examples for some of these commands.
|
|
|
|
vm_list
|
|
=======
|
|
|
|
``vm_list`` provides the name of each virtual machine and its corresponding ID and
|
|
state.
|
|
|
|
.. figure:: images/shell_image8.png
|
|
:align: center
|
|
|
|
vm_list information
|
|
|
|
vcpu_list
|
|
=========
|
|
|
|
``vcpu_list`` provides information about virtual CPUs (vCPU), including
|
|
the VM ID, PCPU ID, VCPU ID, VCPU ROLE (primary or secondary), and VCPU
|
|
STATE (init, paused, running, zombie or unknown).
|
|
|
|
.. figure:: images/shell_image7.png
|
|
:align: center
|
|
|
|
vcpu_list information
|
|
|
|
vcpu_dumpreg
|
|
============
|
|
|
|
``vcpu_dumpreg vmid cpuid`` provides vCPU related information such as
|
|
registers values, etc.
|
|
|
|
In the following example, we dump vCPU0 RIP register value and get into
|
|
the Service VM to search for the currently running function, using these
|
|
commands::
|
|
|
|
cat /proc/kallsyms | grep RIP_value
|
|
|
|
As you can see, vCPU0 is running in
|
|
function ``acpi_idle_do_entry``.
|
|
|
|
.. figure:: images/shell_image10.png
|
|
:align: center
|
|
|
|
vcpu_dumpreg information
|
|
|
|
.. figure:: images/shell_image9.png
|
|
:align: center
|
|
|
|
system map information
|
|
|
|
dump_host_mem
|
|
=============
|
|
|
|
``dump_host_mem hva length`` provides the specified memory target data such as
|
|
the physical CPU (pCPU) number, etc.
|
|
|
|
In this example, we know the pCPU active bitmap and physical CPU number
|
|
physical memory address through
|
|
``build/hypervisor/acrn.map``. (Note that the path for
|
|
``acrn.map`` depends on how we build the hypervisor.)
|
|
|
|
Then we can dump the memory address of the pCPU active bitmap and CPU
|
|
number, we will know that pCPU active bitmap is 0x000000000000000f and
|
|
pCPU number is 0x0000000000000004.
|
|
|
|
.. figure:: images/shell_image12.png
|
|
:align: center
|
|
|
|
dumpmem information
|
|
|
|
.. figure:: images/shell_image11.png
|
|
:align: center
|
|
|
|
acrn map information
|
|
|
|
dump_guest_mem
|
|
==============
|
|
|
|
The ``dump_guest_mem`` command can dump guest memory according to the given
|
|
VM ID and guest virtual address (``gva``).
|
|
|
|
In this example, we know the starting address of kernel text segment
|
|
in guest console or through the ``system.map`` (Note that the path for
|
|
``system.map`` depends on how we build the kernel)
|
|
|
|
.. figure:: images/shell_image19.png
|
|
:align: center
|
|
|
|
guest virtual address
|
|
|
|
.. figure:: images/shell_image20.png
|
|
:align: center
|
|
|
|
guest memory information
|
|
|
|
vm_console
|
|
===========
|
|
|
|
The ``vm_console`` command switches the ACRN's console to become the VM's console.
|
|
Use a :kbd:`Ctrl-Spacebar` to return to the ACRN shell console.
|
|
|
|
vioapic
|
|
=======
|
|
|
|
``vioapic <vm_id>`` shows the virtual IOAPIC information for a specific
|
|
VM. In the following figure, we show the virtual IOPIC information for
|
|
VM1:
|
|
|
|
.. figure:: images/shell_image6.png
|
|
:align: center
|
|
|
|
vioapic information
|
|
|
|
dump_ioapic
|
|
===========
|
|
|
|
``dump_ioapic`` provides IOAPIC information and we can get IRQ number,
|
|
IRQ vector number, etc.
|
|
|
|
.. figure:: images/shell_image14.png
|
|
:align: center
|
|
|
|
dump_ioapic information
|
|
|
|
pt
|
|
==
|
|
|
|
``pt`` provides pass-through detailed information, such as the virtual
|
|
machine number, interrupt type, interrupt request, interrupt vector,
|
|
trigger mode, etc.
|
|
|
|
.. figure:: images/shell_image13.png
|
|
:align: center
|
|
|
|
pt information
|
|
|
|
int
|
|
===
|
|
|
|
``int`` provides interrupt information on all CPUs and their corresponding
|
|
interrupt vector.
|
|
|
|
.. figure:: images/shell_image17.png
|
|
:align: center
|
|
|
|
int information
|
|
|
|
cpuid
|
|
=====
|
|
|
|
``cpuid <leaf> [subleaf]`` provides the CPUID leaf [subleaf] in
|
|
hexadecimal.
|
|
|
|
.. figure:: images/shell_image15.png
|
|
:align: center
|
|
|
|
cpuid information
|
|
|
|
rdmsr
|
|
=====
|
|
|
|
We can read model specific register (MSR) to get register
|
|
values through ``rdmsr [-p<pcpu_id>] <msr_index>``.
|
|
|
|
In the following example, we can get IA32_APIC_BASE value of pCPU 0 through
|
|
the command::
|
|
|
|
rdmsr -p0 1b
|
|
|
|
and see that 1B (Hexadecimal) is the IA32_APIC_BASE MSR address.
|
|
|
|
.. figure:: images/shell_image16.png
|
|
:align: center
|
|
|
|
IA32_APIC_BASE register information
|
|
|
|
.. figure:: images/shell_image18.png
|
|
:align: center
|
|
|
|
rdmsr information
|
|
|
|
wrmsr
|
|
=====
|
|
|
|
We can write model specific register (MSR) to set register
|
|
values through ``wrmsr [-p<pcpu_id>] <msr_index> <value>``.
|
|
|
|
In the following example, we can set IA32_APIC_BASE value of pCPU 1 through
|
|
the command::
|
|
|
|
wrmsr -p1 1b 0xfee00c00
|