Add Zilsd/Zclsd support in hwprobe and KVM#305
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mainline inclusion from mainline-6.19-rc2 commit 4115155 category: feature bugzilla: RVCK-Project#304 -------------------------------- Add descriptions for the Zilsd (Load/Store pair instructions) and Zclsd (Compressed Load/Store pair instructions) ISA extensions which were ratified in commit f88abf1 ("Integrating load/store pair for RV32 with the main manual") of the riscv-isa-manual. Signed-off-by: Pincheng Wang <pincheng.plct@isrc.iscas.ac.cn> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20250826162939.1494021-2-pincheng.plct@isrc.iscas.ac.cn Signed-off-by: Paul Walmsley <pjw@kernel.org> Signed-off-by: Gao Rui <gao.rui@zte.com.cn>
mainline inclusion from mainline-6.19-rc2 commit 3f0cbfb category: feature bugzilla: RVCK-Project#304 -------------------------------- Add parsing for Zilsd and Zclsd ISA extensions which were ratified in commit f88abf1 ("Integrating load/store pair for RV32 with the main manual") of the riscv-isa-manual. Signed-off-by: Pincheng Wang <pincheng.plct@isrc.iscas.ac.cn> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://patch.msgid.link/20250826162939.1494021-3-pincheng.plct@isrc.iscas.ac.cn [pjw@kernel.org: cleaned up checkpatch issues, whitespace; updated to apply] Signed-off-by: Paul Walmsley <pjw@kernel.org> Signed-off-by: Gao Rui <gao.rui@zte.com.cn>
mainline inclusion from mainline-6.19-rc2 commit 6118ebe category: feature bugzilla: RVCK-Project#304 -------------------------------- Export Zilsd and Zclsd ISA extensions through hwprobe. Signed-off-by: Pincheng Wang <pincheng.plct@isrc.iscas.ac.cn> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Link: https://patch.msgid.link/20250826162939.1494021-4-pincheng.plct@isrc.iscas.ac.cn [pjw@kernel.org: fixed whitespace; updated to apply] Signed-off-by: Paul Walmsley <pjw@kernel.org> Signed-off-by: Gao Rui <gao.rui@zte.com.cn>
mainline inclusion from mainline-6.19-rc2 commit f326e84 category: feature bugzilla: RVCK-Project#304 -------------------------------- Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zilsd and Zclsd extensions for Guest/VM. Signed-off-by: Pincheng Wang <pincheng.plct@isrc.iscas.ac.cn> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20250826162939.1494021-5-pincheng.plct@isrc.iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Gao Rui <gao.rui@zte.com.cn>
…test mainline inclusion from mainline-6.19-rc2 commit ab2a7b7 category: feature bugzilla: RVCK-Project#304 -------------------------------- The KVM RISC-V allows Zilsd and Zclsd extensions for Guest/VM so add this extension to get-reg-list test. Signed-off-by: Pincheng Wang <pincheng.plct@isrc.iscas.ac.cn> Reviewed-by: Nutty Liu <nutty.liu@hotmail.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20250826162939.1494021-6-pincheng.plct@isrc.iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org> Signed-off-by: Gao Rui <gao.rui@zte.com.cn>
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开始测试 log: https://github.com/RVCK-Project/rvck/actions/runs/27261703212 参数解析结果
测试完成 详细结果:
Kunit Test Result[07:58:42] Testing complete. Ran 482 tests: passed: 466, skipped: 16
Kernel Build Result
Check Patch Result
LAVA Check (qemu)
result: Lava check done!
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issues: #304
为已批准的 RISC-V ISA 扩展 Zilsd（Load/Store pair）和 Zclsd（Compressed Load/Store pair）添加内核支持，使用户空间（如 glibc）能够通过 hwprobe 和运行时检测机制发现并使用这些扩展。
所有补丁均来自L0社区，并自测通过
测试方法
在qemu11.0上启动一个32bit的虚拟机（-cpu rv32,v=true,f=on,zilsd=on,zclsd=off ）
cat /proc/cpuinfo
processor : 0
hart : 32
isa : rv32imafdcvh_zicbom_zicbop_zicboz_ziccrse_zicntr_zicsr_zifencei_zihintntl_zihintpause_zihpm_zaamo_zalrsc_zawrs_zfa_zca_zcd_zilsd_zba_zbb_zbc_zbs_zve32f_zve32x_smaia_ssaia_sstc_svadu_svvptc
mmu : sv32
mvendorid : 0x0
marchid : 0x0
mimpid : 0x0
hart isa : rv32imafdcvh_zicbom_zicbop_zicboz_ziccrse_zicntr_zicsr_zifencei_zihintntl_zihintpause_zihpm_zaamo_zalrsc_zawrs_zfa_zca_zcd_zilsd_zba_zbb_zbc_zbs_zve32f_zve32x_smaia_ssaia_sstc_svadu_svvptc
~ # hwprobe
TAP version 13
1..5
ok 1 NULL CPU set
ok 2 Bad CPU set
ok 3 NULL CPU set with non-zero size
ok 4 Existing key is maintained
ok 5 Unknown key overwritten with -1 and doesn't block other elements
Totals: pass:5 fail:0 xfail:0 xpass:0 skip:0 error:0