Messages in this thread | | | Date | Thu, 2 Apr 2020 15:13:28 -0500 | From | Josh Poimboeuf <> | Subject | Re: [PATCH 0/3] arch/x86: Optionally flush L1D on context switch |
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On Thu, Apr 02, 2020 at 05:23:58PM +1100, Balbir Singh wrote: > Provide a mechanisn to flush the L1D cache on context switch. The goal > is to allow tasks that are paranoid due to the recent snoop assisted data > sampling vulnerabilites, to flush their L1D on being switched out.
Hi Balbir,
Just curious, is it really vulnerabilities, plural? I thought there was only one: CVE-2020-0550 (Snoop-assisted L1 Data Sampling).
(There was a similar one without the "snoop": L1D Eviction Sampling, but it's supposed to get fixed in microcode).
-- Josh
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