Re: [PATCH RFC v2 1/6] x86: Skip PTI when disable indication is set

From: Dave Hansen
Date: Thu Feb 15 2018 - 13:10:27 EST

Next message: Gustavo A. R. Silva: "[PATCH] net: dsa: mv88e6xxx: hwtstamp: fix potential negative array index read"
Previous message: Michael S. Tsirkin: "Re: [PATCH v14 8/9] fw_cfg: write vmcoreinfo details"
In reply to: Nadav Amit: "[PATCH RFC v2 1/6] x86: Skip PTI when disable indication is set"
Next in thread: Andy Lutomirski: "Re: [PATCH RFC v2 1/6] x86: Skip PTI when disable indication is set"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

On 02/15/2018 08:35 AM, Nadav Amit wrote:
> +.Lno_spec_\@:
> + lfence
> + jmp .Lend_\@
> +
> .Lnoflush_\@:
> SET_NOFLUSH_BIT \save_reg
>

How expensive is this?

Next message: Gustavo A. R. Silva: "[PATCH] net: dsa: mv88e6xxx: hwtstamp: fix potential negative array index read"
Previous message: Michael S. Tsirkin: "Re: [PATCH v14 8/9] fw_cfg: write vmcoreinfo details"
In reply to: Nadav Amit: "[PATCH RFC v2 1/6] x86: Skip PTI when disable indication is set"
Next in thread: Andy Lutomirski: "Re: [PATCH RFC v2 1/6] x86: Skip PTI when disable indication is set"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]