From nobody Sat Feb 7 18:15:20 2026 Received: from mx.treblig.org (mx.treblig.org [46.235.229.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E03F71C32; Mon, 3 Mar 2025 00:08:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.229.95 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740960534; cv=none; b=NL0QfP/kDIWhLnzPpjpjedTKxz+1Zn7AiZBLI5t6KhXBuW/jGRZXDYQBB7aKrPQLFH8fAX7dtdn+N50A/EzpPtrN8cu+7aPJSRg15buM0mAJ9xhtJXLaJ+4om74/hSXEi+AVV/BLj/ZRVzyICKqDPGpKAjQQ14m2MRRM6w72Lbc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740960534; c=relaxed/simple; bh=uuvUNqM5Cs+dashDQaZlaLaO01pRwEYZGIyxvFgIyHI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=d5YEoRH40Ka+djF4LoRVTYXkDs6EL7FKcKLLLrz5IUDJg27sAOy3XcmlDs1nKDpLRqNSL1YZuEHJbnIncOaeS82D2s9Gud7ZvS7xgOcnda8y+KVBk66AHZ2l6GyuMl6HLV5cSqqFeA9NNaYhgfbj/hQQdiqBjo559TN1efD1BT0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org; spf=pass smtp.mailfrom=treblig.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b=ISIaClB3; arc=none smtp.client-ip=46.235.229.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=treblig.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b="ISIaClB3" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=treblig.org ; s=bytemarkmx; h=MIME-Version:Message-ID:Date:Subject:From:Content-Type:From :Subject; bh=19FcswLP9f8A6SKLTW+dZ9z8SiMZQxr1tsfsOt9chpc=; b=ISIaClB3dioW5nb9 RAYjnLh5/jfBEetUyDaOezuzEr99NwscL8Nu0U5sqw2fdUNxP5bkXWnNVlhX0TUyKFhzVPwAImaxD nbFKnPu8eOaFPQS2HIrsndjJRN1XsBpyOG67d30dqmWGocHCBWJC1ThdeFtDIi59QUa2FWcT37jFg Tt6V6IAHejjfxe2U5Otne4LV55t0KVq0D44zkFftsFNZFFy6YpUm0JrFKD8de/aOQFQ29YypaCSvl 3JS3dI6NYBTZ9jssjSE891qAC5uOP370CqTLWN5I8cPAYnWOJO+lswCeTE4NqtfzPKoeYURiWz7D2 b9bVMsNj2Li3R2EUsg==; Received: from localhost ([127.0.0.1] helo=dalek.home.treblig.org) by mx.treblig.org with esmtp (Exim 4.96) (envelope-from ) id 1totMF-001zOp-1O; Mon, 03 Mar 2025 00:08:31 +0000 From: linux@treblig.org To: jgross@suse.com, ajay.kaher@broadcom.com, alexey.amakhalov@broadcom.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com Cc: x86@kernel.org, virtualization@lists.linux.dev, bcm-kernel-feedback-list@broadcom.com, linux-kernel@vger.kernel.org, "Dr. David Alan Gilbert" Subject: [PATCH] x86/paravirt: Remove unused paravirt_disable_iospace Date: Mon, 3 Mar 2025 00:08:30 +0000 Message-ID: <20250303000830.82968-1-linux@treblig.org> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Dr. David Alan Gilbert" The last use of paravirt_disable_iospace() was removed in 2015 by commit d1c29465b8a5 ("lguest: don't disable iospace.") Remove it. Note the comment above it about 'entry.S' is unrelated to this but stayed when intervening code got deleted. Signed-off-by: Dr. David Alan Gilbert --- arch/x86/kernel/paravirt.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 1ccaa3397a67..debe92854774 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -90,26 +90,6 @@ void paravirt_set_sched_clock(u64 (*func)(void)) static_call_update(pv_sched_clock, func); } =20 -/* These are in entry.S */ -static struct resource reserve_ioports =3D { - .start =3D 0, - .end =3D IO_SPACE_LIMIT, - .name =3D "paravirt-ioport", - .flags =3D IORESOURCE_IO | IORESOURCE_BUSY, -}; - -/* - * Reserve the whole legacy IO space to prevent any legacy drivers - * from wasting time probing for their hardware. This is a fairly - * brute-force approach to disabling all non-virtual drivers. - * - * Note that this must be called very early to have any effect. - */ -int paravirt_disable_iospace(void) -{ - return request_resource(&ioport_resource, &reserve_ioports); -} - #ifdef CONFIG_PARAVIRT_XXL static noinstr void pv_native_write_cr2(unsigned long val) { --=20 2.48.1