The following commit has been merged into the x86/boot branch of tip:
Commit-ID: 1d7bc219e2b6176eac361ed2eb11c7a70387644c
Gitweb: https://git.kernel.org/tip/1d7bc219e2b6176eac361ed2eb11c7a70387644c
Author: Ingo Molnar <mingo@kernel.org>
AuthorDate: Thu, 15 May 2025 14:05:25 +02:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Sun, 14 Dec 2025 09:19:38 +01:00
x86/boot/e820: Call the PCI gap a 'gap' in the boot log printout
It is a bit weird and inconsistent that the PCI gap is
advertised during bootup as 'mem'ory:
[mem 0xc0000000-0xfed1bfff] available for PCI devices
^^^
It's not really memory, it's a gap that PCI devices can decode
and use and they often do not map it to any memory themselves.
So advertise it for what it is, a gap:
[gap 0xc0000000-0xfed1bfff] available for PCI devices
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Shevchenko <andy@kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://patch.msgid.link/20250515120549.2820541-10-mingo@kernel.org
---
arch/x86/kernel/e820.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index b0efa4b..96840fa 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -699,7 +699,7 @@ __init void e820__setup_pci_gap(void)
*/
pci_mem_start = gapstart;
- pr_info("[mem %#010lx-%#010lx] available for PCI devices\n",
+ pr_info("[gap %#010lx-%#010lx] available for PCI devices\n",
gapstart, gapstart + gapsize - 1);
}