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On 7/17/19 5:58 AM, Mick wrote: |
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> Hmm ... My last line looks the same like Rich's, but different to yours: |
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> |
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> # cat /sys/devices/system/cpu/vulnerabilities/spectre_v2 |
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> Mitigation: Full AMD retpoline, STIBP: disabled, RSB filling |
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> |
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> I don't have IBPB mentioned in there at all. I'm on gentoo-sources-4.19.57. |
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> Are you running a later kernel? |
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> |
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> According to this article a microcode update seems to be necessary, but I'm |
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> not sure if this statement only applies to Intel CPUs: |
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> |
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> https://access.redhat.com/articles/3311301#indirect-branch-prediction-barriers-ibpb-10 |
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> |
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------ |
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My kernel version : 4.19.59 |
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Please note that I am using the "experimental" USE FLAG for |
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"sys-kernel/gentoo-sources". |
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CPU selected is "AMD Piledriver" |
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Also, I am using the latest firmware for "sys-kernel/linux-firmware" ( |
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20190712:0 ). |
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Kernel command line parameters on boot : |
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"spectre_v2=on spectre_v2_user=on spec_store_bypass_disable=on" |
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Corbin |
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