From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-186.mta1.migadu.com (out-186.mta1.migadu.com [95.215.58.186]) (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 5D996213133 for ; Fri, 25 Oct 2024 22:16:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.186 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729894582; cv=none; b=pIF3iwPGbzCHM/Vj6tSLTVDcvEqtbp4hB/yAf65b3MgjFeE3ak11sto54HiYd5lZS69ppisn8rglsQuPNbhJrN/VCZkR4jtcoVkt/Rtm2bQV7RZfrRONgdNV2XQBIBiqr6UYGDahHWHHiG8l7DMTxT+QH1o001KGJmgrOIWiAOU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729894582; c=relaxed/simple; bh=WqLDa1SPD7IthRjPjRNIk08Duyo07rCazr5EEuw+mRQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=dzo4a+uGr2yuVJmiPFvFqzK085eRHkrwlyuTQ2zoPqekRpgEdA2PlpoDEkzCWKvKndG1Pd6KFp41TYSXiWkKgptScBcVUUw3ngDnJ8olywrwF2dzFMLHb4u9cb8vN5Wkqtt+crwInWc+zn240szlVs2J7h76VObrRnSrJqKDyQg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=ijXdlP1I; arc=none smtp.client-ip=95.215.58.186 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="ijXdlP1I" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1729894578; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UI1vTxlBOxYE5W4xsGO7gchMf+mOAzEAvs84vZBAp0U=; b=ijXdlP1IJrJOQ+IsWfLev5HcVuwPf2qY7Xha9nF+1Hjf5SkAHdXobRxt5zA9IYzdOrlbJM c17M+IZuvvHP6vQ64U+fwRnPELCXzN7JV1sg4QT7bT+guKjOpYc+xn5ck0bVCok+6vWluJ c9JeOIHEkWMk/PHFxdxJr2KKXGnzgho= From: Oliver Upton To: Will Deacon , linux-arm-kernel@lists.infradead.org Cc: Oliver Upton , Marc Zyngier , Joey Gouly , Fuad Tabba , kvmarm@lists.linux.dev Subject: Re: [PATCH 0/2] KVM: arm64: Simplify handling of GICv3 hardware with broken SEIS Date: Fri, 25 Oct 2024 22:16:07 +0000 Message-ID: <172989453422.3686528.17691027763300650560.b4-ty@linux.dev> In-Reply-To: <20241022144016.27350-1-will@kernel.org> References: <20241022144016.27350-1-will@kernel.org> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On Tue, 22 Oct 2024 15:40:14 +0100, Will Deacon wrote: > While looking at reducing the host memory mapped into pKVM at EL2, I > noticed that the GICv3 CPU interface emulation for hardware with broken > SEIS implementations can be simplified and the corresponding mapping of > 'kvm_vgic_global_state' can be dropped. > > Please have a look! > > [...] Included Marc's recommended changelog addition. Applied to kvmarm/next, thanks! [1/2] KVM: arm64: Just advertise SEIS as 0 when emulating ICC_CTLR_EL1 https://git.kernel.org/kvmarm/kvmarm/c/ad361ed4771d [2/2] KVM: arm64: Don't map 'kvm_vgic_global_state' at EL2 with pKVM https://git.kernel.org/kvmarm/kvmarm/c/8aaf3f7dce74 -- Best, Oliver