On Tue, May 22, 2018 at 2:47 PM, taii...@gmx.com <taii...@gmx.com> wrote:
> The fam15h microcode update adds IBPB > > * Indirect Branch Prediction Barrier (IBPB) > * PRED_CMD MSR is available: YES > * CPU indicates IBPB capability: YES (IBPB_SUPPORT feature bit) > My fam15 with kernel 4.16.10 and linux-firmware-20180518 confirms IBPB has been added; $ grep . /sys/devices/system/cpu/vulnerabilities/* /sys/devices/system/cpu/vulnerabilities/meltdown:Not affected /sys/devices/system/cpu/vulnerabilities/spectre_v1:Mitigation: __user pointer sanitization /sys/devices/system/cpu/vulnerabilities/spectre_v2:Mitigation: Full AMD retpoline, IBPB FWIW i saw a bunch of spectre fixes in 4.16.9 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.9
