Date: Wed, 10 Jul 2019 09:06:31 +0200 From: "damian@damianek.be" <damian@damianek.be> To: freebsd-hackers@freebsd.org, freebsd-security@freebsd.org Subject: FreeBSD mds mitigation. Message-ID: <CA%2B6J3vcK_FxBbnx%2Bzyo3kFr3dB2LF5C4qQoiH5=bMd04aTjzKQ@mail.gmail.com>
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Hello FreeBSD 11.2-RELEASE-p11 CPU: Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz (2594.05-MHz K8-class CPU) sysctl hw.mds_disable was set to 3 (Automatic VERW or Software selection), HT disabled in BIOS, and i install manually latest CPU microcode from https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/ I wonder why hw.mds_disable_state shows hw.mds_disable_state: software Broadwell instead VERW? sysctl hw.mds_disable=1 causes hw.mds_disable_state: VERW These automatic selection works correctly? -- dsk damian@damianek.be
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