linux-kernel - Re: [PATCH v12 20/37] x86/fred: Disallow the swapgs instruction when FRED is enabled

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Message-ID: <20231128095329.GQZWW4mTdTdmhZ+wS4@fat_crate.local>
Date:   Tue, 28 Nov 2023 10:53:29 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Xin Li <xin3.li@...el.com>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-edac@...r.kernel.org, linux-hyperv@...r.kernel.org,
        kvm@...r.kernel.org, xen-devel@...ts.xenproject.org,
        tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com,
        x86@...nel.org, hpa@...or.com, luto@...nel.org,
        pbonzini@...hat.com, seanjc@...gle.com, peterz@...radead.org,
        jgross@...e.com, ravi.v.shankar@...el.com, mhiramat@...nel.org,
        andrew.cooper3@...rix.com, jiangshanlai@...il.com,
        nik.borisov@...e.com
Subject: Re: [PATCH v12 20/37] x86/fred: Disallow the swapgs instruction when
 FRED is enabled

On Mon, Oct 02, 2023 at 11:24:41PM -0700, Xin Li wrote:
> +	 * Note, LKGS loads the GS base address into the IA32_KERNEL_GS_BASE
> +	 * MSR instead of the GS segment’s descriptor cache. As such, the

:verify_diff: WARNING: Unicode char [’] (0x8217 in line: +     * MSR instead of the GS segment’s descriptor cache. As such, the

Just do a normal ' - char number 0x27.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette