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Ubuntu Touch Devs Work on OTA-10 and OTA-9.1 Updates, Ubuntu Tablet Enablement

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Ubuntu

Łukasz Zemczak of Canonical has sent in his daily email report today, February 15, 2016, informing us all about the latest work done in the Ubuntu Touch world in preparation for the upcoming OTA updates and devices.

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RISC-V: France, SiFive, CloudBEAR

  • Codasip Announces a New Design Center in France

    Codasip, the leading supplier of customizable RISC-V embedded processor IP, announced its new strategic design center today. It is based in France and the local Codasip team is going to play an important role in the company’s innovation and development plans for the next-generation product IP. The new Codasip French Design Center started operation in the summer. It is located in Villeneuve Loubet on the Mediterranean coastline in southeast France, near the technology park of Sophia Antipolis where major technology companies such as Bosch, NXP, Thales, and many others have offices. “As we are expanding the product portfolio and fostering our technology leadership, we need talented senior engineers to support the growth,” explained Karel Masařík, CEO of Codasip. “Sophia Antipolis is an important European location for R&D and technical talent in the semiconductor industry. We are proud to have hired our French colleagues there, close to customers. Their expertise will be a great supplement to that of our main R&D Center in the Czech Republic.”

  • Codasip opens RISC-V design centre in France

    Codasip's French design centre outside Sophia-Antipolis will focus on the architecture and verification of RISC-V cores German RISC-V core designer Codasip has opened a strategic design centre in France for its processor cores based on teh open source RISC_V instruction set architecture (ISA). The centre in Villeneuve Loubet is near Sophia Antipolis where major technology companies such as Bosch, NXP, Thales, and many others have offices.

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  • CloudBEAR BM-310 RISC-V MCU core for IoT applications

    In the pool of 32-bit RISC-V microcontroller cores (E20 by SiFive, VEGA ET1031 by C-DAC), CloudBEAR showcased its 32-bit small and efficient MCU core – BM-310 at RISC-V GLOBAL FORUM 2020. CloudBEAR works on providing services like processor IP customization, support for RISC-V ISA extensions, product integration within a system-on-chip, and configurable instruction and data cache. Let’s first look into the CloudBEAR processor IP portfolio. It has three different product lines- BM series, BR series, and BI series. First, the BM series targets small and efficient MCUs cores. Second, the BR series targets fast and compact embedded cores. The third and most important BI series is about Linux capable application cores. In this article, we will look into the details of BM-310, which is the RISC-V MCU core for embedded and IoT solutions. 

VirtualBox 6.1.16 Released with Full Support for Linux Kernel 5.9, Various Improvements

The biggest news in VirtualBox 6.1.16 is the implementation of support for the latest and greatest Linux 5.9 kernel series. This support is offered for both Linux hosts and guests, which means that you’ll now be able to install VirtualBox on distributions powered by Linux 5.9, as well as to run distros that use Linux 5.9 as virtual machines. But wait, there are even more Linux improvements in VirtualBox 6.1.16. For example, this release comes with a workaround to improve the resizing of 32-bit virtual machines that use the VMSVGA graphics controller while avoiding the use of RandR 1.3 due to bugs causing hangs with the X server, as well as VMSVGA 3D support for Linux guests when using the Hyper-V hypervisor. Read more

Kernel: Xen, XanMod and XFS

  • Linux 5.10 Xen Brings Security Updates - Includes Fixing ARM Guests With KPTI - Phoronix

    The Xen virtualization work for the Linux 5.10 kernel revolves around security.  Last week brought the initial Xen updates for the Linux 5.10 merge window which primarily consisted of fixes. The main change to point out though was a temporary fix for allowing Xen guests on ARM to work with Kernel Page Table Isolation (KPTI) enabled. A more long-term fix is still being worked on for Xen support in KPTI-enabled ARM environments.  The fix is around the VCPUOP_register_runstate_memory_area hypercall that under KPTI-protected guests would be passed an invalid virtual address, so the short term solution is to just avoid that call. ARM relies on Kernel Page Table Isolation as part of their mitigation against the Meltdown vulnerability on affected ARM Cortex processors, similar to the more well known usage on Intel processors. 

  • XanMod Linux Kernel

    There is a new tool available for Sparkers: XanMod Linux Kernel Installer What is XanMod Linux Kernel?

    XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience. The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts. Supports all recent 64-bit versions of Debian and Ubuntu-based systems.
    [...] – GPLv2 license. Can be built for any distribution or purpose.

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  • XFS Lands More Code For Linux 5.10 - "Even More Monumental" - Phoronix

    Last week saw the XFS file-system with Linux 5.10 support timestamps until the year 2486 rather than year 2038 and other improvements too. This week a second round of XFS work has landed for Linux 5.10.  XFS maintainer Darrick Wong describes this week's file-system changes as "even more monumental than last week!"  XFS developers are announcing that in the Year 2030 they intend to deprecate their Version Four (V4) file-system format -- thus users have a decade to upgrade to the newer V5 format. Making use of the newer on-disk format means better metadata validation, support reflink and online fsck, and this support for timestamp handling beyond the year 2038. 

F(x)tec Pro1-X Announced – with physical keyboard, Lineage OS and Ubuntu Touch support but dated Snapdragon 835

Today, F(x)tec has re-launched their Pro1 smartphone, but renamed as Pro1-X and running LineageOS out of the box combined with compatibility with Ubuntu Touch OS. The phone has been developed in partnership with XDA, hence the name. The hardware remains the same which includes the dated Qualcomm Snapdragon 835 chipset; however, this phone isn't about raw power, it is a productivity tool with a strong focus on privacy. It will then combine the chipset with 8GB of RAM a 5.99-inch FHD+ AMOLED display, an 8MP front-facing camera, and a 12MP camera at the rear. Read more