From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 751AD50B433; Fri, 18 Sep 2026 15:45:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789746333; cv=none; b=sDR3xoribRlyuWcr8U79j8DnfJ8C8jByNHBrmfyi1WASmmw8ra9J6JIW0WPNVLQ6Ryc4xd9Vg3VtvjmYld7NuIwh3gPGL2HHo+HM/CFfx9ff3SPKMJuMVUhKvye32OxZHetyoRyMISJUzh/oTTpxjxSKcX1UVGoR8LmfjXs8jso= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789746333; c=relaxed/simple; bh=rtmJUy4o5LspSiMWCwwO7xWs5PyHglZhGdIj0Zr50mo=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=GCScb9kNkSd94tfBRYLoOX/vu17S5weIJN3AOMQQW0l7RrrSPg/ILJJNqgAFCwCGf89/CBgyn7ebPm5OAOxI/XHwpoXZPxmdZMBeq2hl/bJccBB8RBpqjPhF+LyPPfFgz+eXN1kozdJ3Y93OvLTpuHigUB9hs1HkImI5UG16DCA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jrUXTWSB; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jrUXTWSB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DDE3A1F00898; Fri, 18 Sep 2026 15:45:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789746332; bh=1lffAiDdg8IlnjBIV8SP5ZlnmQzBPl/UjE0UvWVxMhw=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=jrUXTWSB9+Xq1HntX5OZX6C1QgGi8MpeFhwJs2By3gPR/8bda5CC5pncn3z7ItCOt PCmwzJYYXAEmMTxWBQ30kr5e0C72D7kgXKCgomgtOKjRmkZr8DKkzhime+HCdogaem h0+JGlP0MiFcvXUB5ojpKUSm+EGv+u1iGICt88ELL/sigufoxJy4ekVv221Js8wkA/ jIOzmdWAF6R65EA4MKbghCPwdMZ9P4ijIwTYrVUaV6GJ5aAE8VTqkq7Z5zH/rtnevx f/rQd67WkFdfKcuSZnuyYd1fS9zNGIDLrMxAxu+J9Hg/WPyVhWTCB+Swk/OfF2DP7r KhVjSGGN45HwQ== From: sashiko-bot@kernel.org Subject: Re: [PATCH v7 18/21] KVM: s390: vsie: Add VSIE max shadow configuration Reply-To: sashiko-reviews@lists.linux.dev To: "Christoph Schlameuss" Cc: "Heiko Carstens" , linux-s390@vger.kernel.org, "Alexander Gordeev" , kvm@vger.kernel.org, "Vasily Gorbik" , "Christian Borntraeger" In-Reply-To: <20260918-vsie-sigpi-v7-18-f39806eaae37@linux.ibm.com> References: <20260918-vsie-sigpi-v7-0-f39806eaae37@linux.ibm.com> <20260918-vsie-sigpi-v7-18-f39806eaae37@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 18 Sep 2026 15:45:31 +0000 Message-Id: <20260918154531.DDE3A1F00898@smtp.kernel.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > Introduce two new module parameters allowing to keep more shadow > structures >=20 > * vsie_shadow_scb_max > Override the maximum number of VSIE control blocks / vsie_pages to > shadow in guest-1 that are not using the SSCA. KVM will either use > this value or the number of current VCPUs. Either way the number will > be capped to 256. This is the number of guest-3 control blocks / CPUs > to keep shadowed to minimize the repeated shadowing effort. >=20 > * vsie_shadow_sca_max > Override the maximum number of VSIE system control areas / SSCAs to > shadow in guest-1. KVM will use a minimum of the current number of > vCPUs and a maximum of 256 or this value if it is lower. > This is the number of guest-3 system control areas / VMs to keep > shadowed to minimize repeated shadowing effort. >=20 > Signed-off-by: Christoph Schlameuss Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260918-vsie-sigpi= -v7-0-f39806eaae37@linux.ibm.com?part=3D18