Update known-issues processing and tweak conf.py and requirements.txt
(for PyPI package versions) to handle a broader version of
doc-generation tools (sphinx, breathe, docutils, etc.). This should
let us move to Ubuntu 22.04 while maintaining doc-build compatibility
with older tool versions available with Ubuntu 20.04 (doxygen in particular).
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Add bdf info of pio serial port to config.h.
Tracked-On: #8235
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Reviewed-by: Junjie Mao junjie.mao@intel.com
The current code uses a predefined sworld memory array to reserve memory
for trusty VMs, and assume all post launched VMs are trusty VM which is
not correct.
This patch statically reserved memory just for trusty VMs and save 16M
memory for every non trusty VM.
Tracked-On: #6690
Signed-off-by: Chenli Wei <chenli.wei@intel.com>
Acked-by: Eddie Dong <eddie.dong@Intel.com>
The current code use VM number to calculate HV_RAM_SIZE, this is not
match the HV logic.
This patch use the max number of trusty VMs to calculate the size of
sworld memory and assume 4M ram / VM to calculate the final ACRN ram
size.
Tracked-On: #6690
Signed-off-by: Chenli Wei <chenli.wei@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
These changes are compatible with both the Ubuntu 20.04 and 22.04
documentation build processes.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
We have real fix in PR#8222, thus remove the workround in document.
delete the command: sudo pip3 install tqdm
Signed-off-by: zhangrouyu <rouyu.zhang@intel.com>
Tracked-On:8155
Evaluating an XPATH on a tree results an empty list (rather than None) when
that tree does not contain any matching node. This patch fixes a branch
condition that does not check the XPATH evaluation result properly.
Tracked-On: #8168
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
While PCIe specification defines only type 0 and type 1 configuration space
headers, there can be cases where a PCI function has a different header
type. As an example, that device itself is under development or is a
special emulated device.
This patch makes the board inspector gracefully skips those PCIe functions
and continue scanning the rest in such cases, as the only impact of the
anomaly is the prevention of ACRN from passing through that PCIe function
to any VM. It is an overkill to crash the board inspector.
Tracked-On: #6689
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Today users are able to tweak whether the hypervisor includes support to
software SRAM (SSRAM). This, however, gives rise to potential functional
incorrectness when the hypervisor is not built with such support but a
service VM attempts to assign SSRAM to a post-launched VM (which is
possible as the service VM can still see the SSRAM-related ACPI tables). In
such cases the SSRAM assigned to a post-launched VM is not properly
initialized and thus not locked in cache.
As makes little sense for a user to configure the SSRAM support in the
hypervisor in a different way as the presence of SSRAM on hardware, this
patch removes the "SSRAM support" option from the configurator. The config
tools will now automatically enable the SSRAM support if the hardware
supports the feature and disable that otherwise.
Tracked-On: #8231
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
This method gets connected displays andis add them as child nodes to
a corresponding graphics card.
Tracked-On: #7970
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Add 2 helplers:
1. get_realpath: this method returns the realpath of paramenter
if it's a valid path string
2. get_bdf_from_realpath: this method returns the bus, device, function
number if the parameter is a path to /sys/devices
Tracked-On: #7970
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
The design of ACRN CPU performance management is to let hardware
do the autonomous frequency selection(or set to a fixed value),
and remove guest's ability to control CPU frequency.
This patch is to implement the CPU frequency initializer, which will
setup CPU frequency base on the performance policy type.
Two performance policy types are provided for user to choose from:
- 'Performance': CPU runs at its CPU runs at its maximum frequency.
Enable hardware autonomous frequency selection if HWP is presented.
- 'Nominal': CPU runs at its guaranteed frequency.
The policy type is passed to hypervisor through boot parameter, as
either 'cpu_perf_policy=Nominal' or 'cpu_perf_policy=Performance'.
The default type is 'Performance'.
Both HWP and ACPI p-state are supported. HWP is the first choice, for
it provides hardware autonomous frequency selection, while keeps
frequency transaction time low.
Two functions are added to the hypervisor to call:
- init_frequency_policy(): called by BSP at start up time. It processes
the boot parameters, and enables HWP if it is presented.
- apply_frequency_policy(): called after init_frequency_policy().
It applies initial CPU frequency policy setting for each core. It
uses a set of frequency limits data struct to quickly decide what the
highest/nominal frequency is. The frequency limits are generated by
config-tools.
The hypervisor will not be governing CPU frequency after initial policy
is applied.
Cores running RTVMs are fixed to nominal/guaranteed frequency, to get
more certainty in latency. This is done by setting the core's frequency
limits to highest=lowest=nominal in config-tools.
Tracked-On: #8168
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch is to generates frequency limits for each CPU, as a set of
data structure in hypervisor .c code.
With the frequency limits data, the hypervisor performance manager does
not have to deal with the CPU/board info. It just choose the
highest/lowest/guaranteed performance level and performance/nominal
p-state, and use them to construct HWP_REQUEST/PERF_CTL reg value.
How are frequency limits decided:
- For CPUs in standard VMs, frequency limits are just decided by
CPU/board info.
- For CPUs assigned to RTVMs, we want certainty in latency, so just
set its frequency to nominal/guaranteed by letting highest=lowest.
- In some cases, CPUs are sharing frequency on hardware level
(e.g. ADL e-cores in group of 4). This is described as _PSD in ACPI
spec, or 'frequency domain' in Linux cpufreq driver. Thoese CPUs'
frequency are linked together. If one of them are running RTVM,
all other CPUs in the domain should be set to the same frequency.
Tracked-On: #8168
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This patch adds CPU frequency info extraction for board_inspector.
It is supposed to be used by ACRN CPU performance management.
Including those:
- Capabilities for HWP base regs, and turbo boost, by reading cpuids.
- Reporting all CPUID bits in LEAF 06H.
- Max none turbo ratio and max turbo ratio, by reading MSRs.
- HWP capabilities, by reading IA32_HWP_CAPABILITIES. Reading this
register requires HWP enabled in IA32_PM_ENABLE. (SDM Vol3 14.4.2:
Additional MSRs associated with HWP may only be accessed after HWP
is enabled)
- ACPI _PSD info, by reading sys nodes of Linux acpi-pstate driver.
This table describes frequency domains in which CPUs shares the same
frequency.
Tracked-On: #8168
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This patch is to generate an ACRN CPU performance policy type boot
parameter.
The generated parameter is either 'cpu_perf_policy=Performance’ or
‘cpu_perf_policy=Nominal’, according to the 'CPU performance policy type'
config item in configurator.
It will then be packed into acrn-hypervisor deb file, and will be
automatically added to grub cfg file through installation.
Tracked-On: #8168
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Add 'CPU performance policy type' option to configurator. User can choose
from 'Performance' or 'Nominal' as the CPU performance policy for ACRN to
apply.
Tracked-On: #8168
Signed-off-by: Wu Zhou <wu.zhou@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
The cpu_affinity is null when creating a new scenario. Do not update the
pcpu properties if the cpu_affinity is null.
Tracked-On: #8145
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Prevent allocator to allocate PCI bus mmio windows to other devices.
Tracked-On: #8191
Signed-off-by: Yang,Yu-chu <yu-chu.yang@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Added python3-tqdm depend in gen_acrn_deb.py
Tracked-On: #8155
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Signed-off-by: Ziheng Li <ziheng.li@intel.com>
Some member of CACHE_REGION have no documentation element, this cause
some issue when we generate documentation for user.
This patch add some documentation to fix the above issue.
Tracked-On: #6690
Signed-off-by: Chenli Wei <chenli.wei@intel.com>
Add a new flag in ioeventfd ioctl to support asyncio. After that, the IO
request will be processed in asyncio path by kernel and hypervisor.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
asyncio is a new mechanism in ACRN, which is special for these devices
which need high IO performance. ACRN hypervisor would process the IO
request from User VM in an async mode.
Just like the original IOReq shared page, the devicemodel also create a
page for fastio requests. As the asyncio use the ioeventfd, so the
reuqests are handled in kernel, devicemodel only need to provide the
page.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Wang, Yu1 <yu1.wang@intel.com>
For an IO request, hv will check if it was registered in asyncio desc
list. If yes, put the corresponding fd to the shared buffer. If the
shared buffer is full, yield the vcpu and try again later.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Add hypercall to add/remove asyncio request info. Hv will record the
info in a list, and when a new ioreq is come, hv will check if it is
in the asyncio list, if yes, queue the fd to asyncio buffer.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Current IO emulation is synchronous. The user VM need to wait for the
completion of the the I/O request before return. But Virtio Spec
introduces introduces asynchronous IO with a new register in MMIO/PIO
space named NOTIFY, to be used for FE driver to notify BE driver, ACRN
hypervisor can emulate this register by sending a notification to vCPU
in Service VM side. This way, FE side can resume to work without waiting
for the full completion of BE side response.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Extend sbuf hypercall to support other kinds of share buffer.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
sbuf is now only used for debug purpose, but later, it will be used as a
common interfaces. So, move the sbuf related code out of the debug directory.
Tracked-On: #8209
Signed-off-by: Conghui <conghui.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Improve SMP call to support ACRN shell to operate RTVM.
before, the RTVM CPU can't be kicked off by notification IPI,
so some shell commands can't support it, like rdmsr/wrmsr,
memory/registers dump. So INIT will be used for RTVM, which
LAPIC is pass-thru.
Tracked-On: #8207
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
By default, notification IPI used to kick sharing pCPU, INIT
used to kick partition pCPU. If USE_INIT_IPI flag is passed to
hypervisor, only INIT will be used to kick pCPU.
Tracked-On: #8207
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
INIT signal has been used to kick off the partitioned pCPU, like RTVM,
whose LAPIC is pass-through. notification IPI is used to kick off
sharing pCPU.
Add mode_to_kick_pcpu in per-cpu to control the way of kicking
pCPU.
Tracked-On: #8207
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The access to PCI config_space is handled in HV for Passthrough pci
devices. And it also provides one mechanism to forward cfg_access of
some registers to DM. For example: the opregion reg for GPU device.
This patch tried to add the support of emulated PCI ROM bar for the
device. And it doesn't handle the phys PCI ROM bar of phys PCI devices.
At the same time the rom firmware is provided in DM and pci rom bar_reg
is also emulated in DM, this leverages the quirk mechanism so that the
access to PCI rom bar_reg is forwarded to DM.
Tracked-On: #8175
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Wang Yu <yu1.wang@intel.com>
Add the option of "romfile=file_location" to specify the rom file for rombar
Tracked-On: #8175
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Wang Yu <yu1.wang@intel.com>
The pci_reg 0x30 of PCI config_space is used to check whether the PCI rom
bar is supported. When the PCI rom is supported for the device in guest vm,
the 0x30 pci_reg is emulated and it can return the addr/enable bit.
Tracked-On: #8175
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
TrellixVulnTeam