Re: [PATCH v2 0/8] IBRS patch series

From: Woodhouse, David
Date: Sat Jan 06 2018 - 07:18:20 EST


On Fri, 2018-01-05 at 18:12 -0800, Tim Chen wrote:
> Tim Chen (8):
> Â x86/feature: Detect the x86 IBRS feature to control Speculation
> Â x86/enter: MACROS to set/clear IBRS
> Â x86/enter: Use IBRS on syscall and interrupts
> Â x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
> Â x86/idle: Disable IBRS entering idle and enable it on wakeup
> Â x86/microcode: Recheck IBRS features on microcode reload
> Â x86: Do not use dynamic IBRS if retpoline is enabled
> Â x86: Use IBRS for firmware update path

.. where's the KVM bit? We need to set IBRS on vmexit too.

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