perf spe-c2c record失败的问题

您好，我采用最新的openEuler-1.0测试perf spe-c2c的功能，但是发现/sys/devices下没有arm_spe_0这个目录
执行perf spe-c2c record时显示：
event syntax error: 'arm_spe_0/ts_enable=1,pct_enable=1,pa_enable=1,load_filter=1,jitter=1,store_filter=1,min_latency=0/'
___ Cannot find PMU `arm_spe_0'. Missing kernel support?

想问下您这是为什么？需要哪里开启spe功能吗？

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这应该是内核的bug，请麻烦尽快解决

确认下，这个配了没，还有 BIOS 版本是否更新

1、内核启动参数：kpti=off
2、BIOS支持：PPTT 2.0 & MADT，上报spe信息

确认下，这个配了没，还有 BIOS 版本是否更新
1、内核启动参数：kpti=off
2、BIOS支持：PPTT 2.0 & MADT，上报spe信息

@Xie XiuQi 谢谢您的回复，麻烦能告知下对应的BIOS版本吗？？

Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Table at 0x2FC60000.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: Huawei Corp.
Version: 0.88
Release Date: 07/24/2019
Address: 0x5F000
Runtime Size: 644 kB
ROM Size: 6144 kB
Characteristics:
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported

需要 BIOS 版本支持：
1、内核启动参数：kpti=off
2、BIOS支持：PPTT 2.0 & MADT，上报spe信息

GVP openEuler / kernel

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GVPopenEuler / kernel

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