{"id":196,"date":"2022-06-05T18:41:13","date_gmt":"2022-06-05T18:41:13","guid":{"rendered":"https:\/\/lpc.events\/blog\/2022\/?p=196"},"modified":"2023-03-08T06:54:36","modified_gmt":"2023-03-08T06:54:36","slug":"microconferences-at-linux-plumbers-conference-risc-v","status":"publish","type":"post","link":"https:\/\/lpc.events\/blog\/current\/index.php\/2022\/06\/05\/microconferences-at-linux-plumbers-conference-risc-v\/","title":{"rendered":"Microconferences at Linux Plumbers Conference: RISC-V"},"content":{"rendered":"<p>Linux Plumbers Conference 2022 is pleased to host the RISC-V Microconference<\/p>\n<p>The RISC-V software ecosystem continues to grow tremendously with many RISC-V ISA extensions being ratified last year. There are many features supporting the ratified extensions that are under development, for instance svpbmt, sstc, sscofpmf, cbo.<br \/>\nThe RISC-V microconference is to discuss these issues with a wider community to arrive at a solution as was successfully done in the past.<\/p>\n<p>Here are a few of the expected topics and current problems in RISC-V Linux land that would be covered this year:<\/p>\n<ul>\n<li>Various specification updates and plans for supporting them, with candidates including SBI, EFI, memory models (WMO, IO, etc), IOMMU, TEE<\/li>\n<li>Handling of user-visible errata, with the most notable current example being the many present in the D1.<\/li>\n<li>Moving forward with support for the V extension, including probing from userspace (VLENMAX, performance, etc). A similar set of issues will likely arise for the B and K extensions.<\/li>\n<li>Handling of runtime probing of various performance knobs in the kernel, like strings.h and locks.<\/li>\n<li>Defining rules for portable\/distro kernels while keeping non-portable kernels in mind.<\/li>\n<li>Dealing with the ABI fallout from the pre-formal-model GCC interpretation of WMO, and by the time Plumbers comes around, maybe TSO as well.<\/li>\n<li>Is using WRS for pthread_mutex() sane? Either way, how to handle mtime in userspace?<\/li>\n<li>Ongoing development for Nested hypervisor<\/li>\n<\/ul>\n<p>Please come and join us in the discussion on how we can improve the support for RISC-V in the Linux kernel.<\/p>\n<p>We hope to see you <a href=\"https:\/\/lpc.events\/event\/16\/contributions\/1148\/\">there<\/a>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux Plumbers Conference 2022 is pleased to host the RISC-V Microconference The RISC-V software ecosystem continues to grow tremendously with many RISC-V ISA extensions being ratified last year. There are many features supporting the ratified extensions that are under development, for instance svpbmt, sstc, sscofpmf, cbo. The RISC-V microconference is to discuss these issues with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[17],"class_list":["post-196","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-17"],"_links":{"self":[{"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/posts\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/comments?post=196"}],"version-history":[{"count":1,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/posts\/196\/revisions"}],"predecessor-version":[{"id":466,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/posts\/196\/revisions\/466"}],"wp:attachment":[{"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/media?parent=196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/categories?post=196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lpc.events\/blog\/current\/index.php\/wp-json\/wp\/v2\/tags?post=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}