Gentoo Archives: gentoo-user

From: Nikos Chantziaras <realnc@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: Kernel 4.14.14 has meltdown / spectre info in /sys
Date: Thu, 18 Jan 2018 18:31:20
Message-Id: p3qp0n$ha$1@blaine.gmane.org
In Reply to: [gentoo-user] Kernel 4.14.14 has meltdown / spectre info in /sys by Adam Carter
1 On 18/01/18 10:28, Adam Carter wrote:
2 > Nice;
3 >
4 > $ ls /sys/devices/system/cpu/vulnerabilities/
5 > meltdown  spectre_v1  spectre_v2
6 > $ cat /sys/devices/system/cpu/vulnerabilities/meltdown
7 > Mitigation: PTI
8 > $ cat /sys/devices/system/cpu/vulnerabilities/spectre_v1
9 > Vulnerable
10 > $ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2
11 > Vulnerable: Minimal generic ASM retpoline
12
13 Good to know! Thanks.
14
15 For Spectre, GCC 7.3 is needed, which isn't released yet, but AFAIK is
16 being fast-tracked for release by upstream. There's plans to backport to
17 GCC 6 as well.
18
19 Not sure about the CPU microcode situation.

Replies

Subject Author
[gentoo-user] PSA: GCC 7.3 allows to build kernel with full Spectre v2 mitigation Nikos Chantziaras <realnc@×××××.com>