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
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