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Project ACRN hypervisor
ptirq_remapping_info records which physical interrupt is mapped to the virtual interrupt in a VM. As we need to knonw whether a physical sid has been mapped to a VM and whether a virtual sid in a VM has been used, there should be two hash tables to link and iterate ptirq_remapping_info: - One is used to lookup from physical sid, linking phys_link. - The other is used to lookup from virtual sid in a VM, linking virt_link Without this patch, phys_link or virt_link from different ptirq_remapping_info was linked by one hash list head if they got the same hash value, as shown in following diagram. When looking for a ptirq_remapping_info from physical sid, the original code took all hash list node as phys_link and failed to get ptirq_remapping_info linked with virt_link and later references to its members are wrong. The same problem also occurred when looking for a ptirq_remapping_info from virtual sid and vm. ---------- <- hash table |hlist_head| --actual ptirq_remapping_info address ---------- --------- / --used as ptirq_remapping_info | ... | |phys_link| ___/ ---------- --------- --------- / --------- |hlist_head| -> |phys_link| <-> |virt_link| <-> |phys_link| ---------- --------- --------- --------- | ... | |virt_link| | other | |virt_link| ---------- --------- | members | --------- | other | --------- | other | | members | | members | --------- --------- Tracked-On: #8370 Signed-off-by: Qiang Zhang <qiang4.zhang@linux.intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com> |
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devicemodel | ||
doc | ||
hypervisor | ||
misc | ||
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.clang-format | ||
.deb.conf | ||
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.pre-commit-intel | ||
CODE_OF_CONDUCT.rst | ||
CODEOWNERS | ||
CONTRIBUTING.rst | ||
LICENSE | ||
Makefile | ||
paths.make | ||
README.rst | ||
VERSION |
Project ACRN Embedded Hypervisor ################################ .. raw:: html <img src="doc/images/ACRN_Logo_PrimaryLockup_COLOR-300x300-1.png" height="175px" align="right"> The open source project ACRN defines a device hypervisor reference stack and an architecture for running multiple software subsystems, managed securely, on a consolidated system by means of a virtual machine manager. It also defines a reference framework implementation for virtual device emulation, called the "ACRN Device Model". The ACRN Hypervisor is a Type 1 reference hypervisor stack, running directly on the bare-metal hardware, and is suitable for a variety of IoT and embedded device solutions. The ACRN hypervisor addresses the gap that currently exists between datacenter hypervisors, and hard partitioning hypervisors. The ACRN hypervisor architecture partitions the system into different functional domains, with carefully selected guest OS sharing optimizations for IoT and embedded devices. .. start_include_here Community Support ***************** The Project ACRN Developer Community includes developers from member organizations and the general community all joining in the development of software within the project. Members contribute and discuss ideas, submit bugs and bug fixes. They also help those in need through the community's forums such as mailing lists and IRC channels. Anyone can join the developer community and the community is always willing to help its members and the User Community to get the most out of Project ACRN. Welcome to the project ACRN community! We're now holding monthly Technical Community Meetings and encourage you to call in and learn more about the project. Meeting information is on the `TCM Meeting page`_ in our `ACRN wiki <https://wiki.projectacrn.org/>`_. .. _TCM Meeting page: https://github.com/projectacrn/acrn-hypervisor/wiki/ACRN-Committee-and-Working-Group-Meetings#technical-community-meetings Resources ********* Here's a quick summary of resources to find your way around the Project ACRN support systems: * **Project ACRN Website**: The https://projectacrn.org website is the central source of information about the project. On this site, you'll find background and current information about the project as well as relevant links to project material. For a quick start, refer to the `ACRN Introduction`_ and `Getting Started Guide`_. * **Source Code in GitHub**: Project ACRN source code is maintained on a public GitHub repository at https://github.com/projectacrn/acrn-hypervisor. You'll find information about getting access to the repository and how to contribute to the project in this `Contribution Guide`_ document. * **Documentation**: Project technical documentation is developed along with the project's code, and can be found at https://projectacrn.github.io. Additional documentation is maintained in the `Project ACRN GitHub wiki`_. * **Issue Reporting and Tracking**: Requirements and Issue tracking is done in the Github issues system: https://github.com/projectacrn/acrn-hypervisor/issues. You can browse through the reported issues and submit issues of your own. * **Reporting a Potential Security Vulnerability**: If you have discovered potential security vulnerability in ACRN, please send an e-mail to acrn-security@lists.projectacrn.org. It is important to include the following details: - The projects and versions affected - Detailed description of the vulnerability - Information on known exploits * **Mailing List**: The `Project ACRN Development mailing list`_ is perhaps the most convenient way to track developer discussions and to ask your own support questions to the project ACRN community. There are also specific `ACRN mailing list subgroups`_ for builds, users, and Technical Steering Committee notes, for example. You can read through the message archives to follow past posts and discussions, a good thing to do to discover more about the project. .. _ACRN Introduction: https://projectacrn.github.io/latest/introduction/ .. _Getting Started Guide: https://projectacrn.github.io/latest/getting-started/ .. _Contribution Guide: https://projectacrn.github.io/latest/contribute.html .. _Project ACRN GitHub wiki: https://github.com/projectacrn/acrn-hypervisor/wiki .. _PGP Key: https://www.intel.com/content/www/us/en/security-center/pgp-public-key.html .. _vulnerability handling guidelines: https://www.intel.com/content/www/us/en/security-center/vulnerability-handling-guidelines.html .. _Project ACRN Development mailing list: https://lists.projectacrn.org/g/acrn-dev .. _ACRN mailing list subgroups: https://lists.projectacrn.org/g/main/subgroups