From: Kiryl Shutsemau <kas@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
Uros Bizjak <ubizjak@gmail.com>, Petr Mladek <pmladek@suse.com>,
Andrew Morton <akpm@linux-foundation.org>,
Kees Cook <kees@kernel.org>,
"Peter Zijlstra (Intel)" <peterz@infradead.org>,
Nathan Chancellor <nathan@kernel.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev,
x86@kernel.org
Subject: Re: [PATCH v1 01/14] x86/realmode: remove I/O port paravirtualization
Date: Wed, 21 Jan 2026 12:27:01 +0000 [thread overview]
Message-ID: <aXDF-TzkcansvuiC@thinkstation> (raw)
In-Reply-To: <20260120195407.1163051-2-hpa@zytor.com>
On Tue, Jan 20, 2026 at 11:53:53AM -0800, H. Peter Anvin wrote:
> In commit:
>
> eb4ea1ae8f45 x86/boot: Port I/O: Allow to hook up alternative helpers
>
> ... paravirtualization hooks were added to (some!) of the port I/O
> functions. However, they were only ever used in the 32/64-bit
> "compressed" directory, and never made any sense in the real-mode
> code, which is notoriously size sensitive.
>
> Without these hooks, <asm/shared/io.h> is usable directly, so mode
> io.h into the compressed/ directory and replace "io.h" with
> <asm/shared/io.h> for the actual real-mode code.
>
> Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Acked-by: Kiryl Shutsemau <kas@kernel.org>
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-01-21 12:27 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20260119192923.651588-1-hpa@zytor.com>
2026-01-20 19:53 ` [PATCH v1 00/14] x86 boot code cleanups, batch 1 H. Peter Anvin
2026-01-20 19:53 ` [PATCH v1 01/14] x86/realmode: remove I/O port paravirtualization H. Peter Anvin
2026-01-20 21:47 ` David Laight
2026-01-21 12:27 ` Kiryl Shutsemau [this message]
2026-01-28 17:01 ` Borislav Petkov
2026-01-20 19:53 ` [PATCH v1 02/14] x86/realmode: make %gs == 0 an invariant H. Peter Anvin
2026-01-20 22:40 ` David Laight
2026-01-20 22:51 ` H. Peter Anvin
2026-01-21 0:47 ` H. Peter Anvin
2026-01-21 10:03 ` Uros Bizjak
2026-01-20 19:53 ` [PATCH v1 03/14] x86/boot: use <linux/compiler.h> H. Peter Anvin
2026-01-21 10:04 ` Uros Bizjak
2026-01-20 19:53 ` [PATCH v1 04/14] x86/boot: modernize the segment structure for the header and setup H. Peter Anvin
2026-01-20 19:53 ` [PATCH v1 05/14] x86/boot: call puts() from within die() H. Peter Anvin
2026-01-21 10:07 ` Uros Bizjak
2026-01-20 19:53 ` [PATCH v1 06/14] x86/boot: add comment barriers for the different headers H. Peter Anvin
2026-01-20 19:53 ` [PATCH v1 07/14] x86/boot: factor out the 16-bit startup code from header.S H. Peter Anvin
2026-01-21 10:08 ` Uros Bizjak
2026-01-20 19:54 ` [PATCH v1 08/14] x86: make CONFIG_EFI_STUB unconditional H. Peter Anvin
2026-01-20 19:54 ` [PATCH v1 09/14] x86/boot: make the relocatable kernel unconditional H. Peter Anvin
2026-01-20 19:54 ` [PATCH v1 10/14] x86/boot: explicitly put the old command line pointer in header.S H. Peter Anvin
2026-01-20 19:54 ` [PATCH v1 11/14] x86/boot: use __seg_fs and __seg_gs in the real-mode boot code H. Peter Anvin
2026-01-21 8:56 ` Uros Bizjak
2026-01-21 9:40 ` Uros Bizjak
2026-01-21 15:13 ` H. Peter Anvin
2026-01-21 16:03 ` Uros Bizjak
2026-01-22 18:57 ` [PATCH v1 08/14] x86: make CONFIG_EFI_STUB unconditional Simon Glass
2026-01-23 0:11 ` H. Peter Anvin
2026-01-26 21:19 ` Simon Glass
2026-01-26 22:20 ` H. Peter Anvin
2026-01-27 1:44 ` Simon Glass
2026-01-27 2:39 ` H. Peter Anvin
2026-01-27 2:54 ` H. Peter Anvin
2026-01-27 3:14 ` Simon Glass
2026-01-27 3:21 ` H. Peter Anvin
2026-01-29 22:13 ` Simon Glass
2026-01-29 22:22 ` H. Peter Anvin
2026-01-21 16:07 ` [PATCH v1 11/14] x86/boot: use __seg_fs and __seg_gs in the real-mode boot code Uros Bizjak
2026-01-20 19:54 ` [PATCH v1 12/14] x86/boot: tweak a20.c for better code generation H. Peter Anvin
2026-01-21 10:10 ` Uros Bizjak
2026-01-21 11:49 ` David Laight
2026-01-24 3:00 ` Maciej W. Rozycki
2026-01-24 4:24 ` H. Peter Anvin
2026-01-24 23:07 ` David Laight
2026-01-24 23:16 ` H. Peter Anvin
2026-01-24 23:40 ` H. Peter Anvin
2026-01-20 19:54 ` [PATCH v1 13/14] x86/boot: simplify x86/boot/cmdline.c by using __seg_fs H. Peter Anvin
2026-01-21 10:11 ` Uros Bizjak
2026-01-20 19:54 ` [PATCH v1 14/14] compiler-gcc: Remove obsolete RELOC_HIDE() macro H. Peter Anvin
2026-01-21 10:18 ` [PATCH v1 00/14] x86 boot code cleanups, batch 1 Uros Bizjak
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aXDF-TzkcansvuiC@thinkstation \
--to=kas@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=kees@kernel.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=nathan@kernel.org \
--cc=peterz@infradead.org \
--cc=pmladek@suse.com \
--cc=rick.p.edgecombe@intel.com \
--cc=tglx@kernel.org \
--cc=ubizjak@gmail.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.