Date: Thu, 21 Jun 2018 18:01:01 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 229215] hw.spec_store_bypass_disable_active=0 when hw.spec_store_bypass_disable=1 on AMD CPU Message-ID: <bug-229215-227@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229215 Bug ID: 229215 Summary: hw.spec_store_bypass_disable_active=3D0 when hw.spec_store_bypass_disable=3D1 on AMD CPU Product: Base System Version: 11.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: pkubaj@anongoth.pl I have two boxes with AMD Opteron 6262HE and 6386SE. Both are reportedly vulnerable to Spectre v4, but it's reported that they d= on't need new microcode, only kernel patches. I'm running 11-STABLE and have hw.spec_store_bypass_disable=3D1. Even then I can see that hw.spec_store_bypass_disable_active is 0. On another PC, with new Intel microcode from platomav repo, hw.spec_store_bypass_disable_active is 1, which suggests that something is wrong with SSBD for AMD. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-229215-227>