SstcwasoptionalinRVA22. SscofpmfCountOverflowandMode-BasedFiltering. SsnpmPointermasking,withsenvcfg.PMEandhenvcfg.PMEsupporting,atminimum,settingsPMLEN=0andPMLEN=7. Ssu64xlsstatus.UXLmustbecapableofholdingthevalue2(i.e.,UXLEN=64mustbesupported). Note Ssu64xlwasoptionalinRVA22. HThehypervisorexten...
如今在RISC-V的SBI 1.0版本中我们也可以看到,PMU扩展已经成了该规范的一部分。 接着是sscofpmf扩展,ss代表的是特权架构和管理员级的扩展,cofpmf代表的是溢出计数和特权模式筛选。该扩展新增了一个32位的scountovf只读寄存器,该寄存器存储的是29个mhpmcounter的第63位(OF),如此一来就能准确快速地判断究竟是哪个事...
Release of RISC-V ISA, built from commit7dd8995, is now available. What's Changed Integrate Sscofpmf into priv spec more smoothly by@aswatermanin#1323 Full Changelog:riscv-isa-release-cdff4e7-2024-04-04...riscv-isa-release-7dd8995-2024-04-05 ...
RVA22S64 has four unprivileged options (Zfh, V, Zkn, Zks) from RVA22U64, and eight privileged options (Sv48, Sv57, Svnapot, Ssu64xl, Sstc, Sscofpmf, Zkr, H). The privileged optional extensions are: Sv48Page-Based 48-bit Virtual-Memory System. ...
本文章为翻译RISC-V SBI-2.0.0-rc1版本,相较于SBI-1.0.0,更改或新增的内容均在本文中标识“(更新)”,后续将列出更新的内容与相关的见解。 前言 该文件已批准 不允许更改。任何更改都可以作为后续文档的修改讨论,修订版本号与 RISC-V 版本一致。
Sscofpmf Count Overflow and Mode-Based Filtering. Ssnpm Pointer masking, with senvcfg.PME and henvcfg.PME supporting, at minimum, settings PMLEN=0 and PMLEN=7. Ssu64xl sstatus.UXL must be capable of holding the value 2 (i.e., UXLEN=64 must be supported). Note Ssu64xl was ...
Sscofpmf v0.5.2 Zca extension, v1.0 Zcb extension, v1.0 Zcf extension, v1.0 Zcd extension, v1.0 Zcmp extension, v1.0 Zcmt extension, v1.0As a Spike extension, the remainder of the proposed Bit-Manipulation Extensions is provided under the Spike-custom extension name Xbitmanip. These instr...
Sscofpmf v0.5.2 Zca extension, v1.0 Zcb extension, v1.0 Zcf extension, v1.0 Zcd extension, v1.0 Zcmp extension, v1.0 Zcmt extension, v1.0 Zfbfmin extension, v0.6 Zvfbfmin extension, v0.6 Zvfbfwma extension, v0.6 Projects are versioned primarily to indicate when the API has been extend...
Smepmp extension v1.0 Smstateen extension, v1.0 Sscofpmf v0.5.2 Zca extension, v1.0 Zcb extension, v1.0 Zcf extension, v1.0 Zcd extension, v1.0 Zcmp extension, v1.0 Zcmt extension, v1.0 Zfbfmin extension, v0.6 Zvfbfmin extension, v0.6 Zvfbfwma extension, v0.6Versioning...
Smepmp extension v1.0 Smstateen extension, v1.0 Sscofpmf v0.5.2 Zca extension, v1.0 Zcb extension, v1.0 Zcf extension, v1.0 Zcd extension, v1.0 Zcmp extension, v1.0 Zcmt extension, v1.0 Zfbfmin extension, v0.6 Zvfbfmin extension, v0.6 Zvfbfwma extension, v0.6Versioning...