From: Borislav Petkov <bp@alien8.de>
To: Brian Gerst <brgerst@gmail.com>
Cc: Uros Bizjak <ubizjak@gmail.com>,
x86@kernel.org, linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH] x86/boot: Remove x86_32 PIC using ebx workaround
Date: Tue, 29 Nov 2022 09:32:21 +0100 [thread overview]
Message-ID: <Y4XDlWc+2OvmW7kS@zn.tnic> (raw)
In-Reply-To: <CAMzpN2jY+m5amE-6JB_eYswG2tx1aT6U3EBdYEtc-KdXSHec0A@mail.gmail.com>
On Mon, Nov 28, 2022 at 10:41:11PM -0500, Brian Gerst wrote:
> x86-64 uses a PIC register for the medium and large PIC code models,
> where offsets can be larger than +/- 2GB.
Right but 64-bit is built with -mcmodel=kernel which obviously generates
rip-relative.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2022-11-29 8:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-04 12:45 [PATCH] x86/boot: Remove x86_32 PIC using ebx workaround Uros Bizjak
2022-11-28 22:20 ` Borislav Petkov
2022-11-29 3:41 ` Brian Gerst
2022-11-29 8:32 ` Borislav Petkov [this message]
2022-11-29 13:24 ` Brian Gerst
2022-11-29 13:26 ` Uros Bizjak
2022-11-29 7:39 ` Uros Bizjak
2022-11-29 8:31 ` Borislav Petkov
2022-11-29 8:50 ` Uros Bizjak
2022-11-29 14:46 ` Borislav Petkov
2022-11-29 14:56 ` Uros Bizjak
2022-11-29 15:27 ` Borislav Petkov
2022-11-29 19:44 ` [tip: x86/boot] x86/boot: Remove x86_32 PIC using %ebx workaround tip-bot2 for Uros Bizjak
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