Date: Tue, 6 Apr 2021 04:39:49 -0400 From: grarpamp <grarpamp@gmail.com> To: freebsd-security@freebsd.org Subject: AMD: Predictive Store Forwarding PSF Message-ID: <CAD2Ti289reFxTTBUCS=QAzPHtYQM1Vq-8vLAkEgPVjYEQ8VfNA@mail.gmail.com>
index | next in thread | raw e-mail
Shouldn't this get a kernel option, sysctl, test app...? https://www.amd.com/system/files/documents/security-analysis-predictive-store-forwarding.pdf AMD advised customers last week to disable a new performance feature if they plan to use CPUs for sensitive operations, as this feature is vulnerable to Spectre-like side-channel attacks. Called Predictive Store Forwarding (PSF), this feature was added to AMD CPUs part of the company's Zen 3 core architecture.help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAD2Ti289reFxTTBUCS=QAzPHtYQM1Vq-8vLAkEgPVjYEQ8VfNA>