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Arm Expands Speculative SSBS Workaround With More CPU Cores Being Affected

Back in May there were Linux kernel patches posted as a workaround for Arm CPU errata around the Speculative Store Bypass (SSB) handling

Back in May there were Linux kernel patches posted as a workaround for Arm CPU errata around the Speculative Store Bypass(SSB) handling. The Linux workaround to this newer errata is to have a speculation barrier after MSR writes to the SSBS register. Thus with Linux 6.11 the code will land for expanding this speculative SSBS workaround to the additional affected models.

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