From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 77455D149F6 for ; Fri, 25 Oct 2024 22:22:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UI1vTxlBOxYE5W4xsGO7gchMf+mOAzEAvs84vZBAp0U=; b=cIRnOpeRdlHI51T23RWjovPyPx 62ro0vOHKiSSuBGd5shHbLpL0bl1NJsryvtR58KQ5fxyVtoBx1VaGjdAC9MLdD2Wb0lILXbJwS7DH lprRnhandtm2IRfWSBrvctHfHgoU7n5qUNtW5MscszbHyCXVHzRODbKbdwdTjE+LvxmibFCFWIZCY v24lnsO/QvbAJ9m9ssFvoxCqqN8APLt57+WyKeVhTx+Y/plIgB61Y+V5dc4ZX9kkiduzysyC/vICp 2aYUJmteJfFbQlCZRFjG9FO2dy4Qs/GUc6dJstBUGrCJmtYoI9H1qrz3PRoO0o0vWFpG9VjSUet4h CTiv4zHA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t4ShZ-00000005Qve-1kQ9; Fri, 25 Oct 2024 22:22:37 +0000 Received: from out-182.mta1.migadu.com ([2001:41d0:203:375::b6]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t4SbV-00000005PnZ-3bgf for linux-arm-kernel@lists.infradead.org; Fri, 25 Oct 2024 22:16:23 +0000 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> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241025_151622_057345_2E43C82C X-CRM114-Status: UNSURE ( 8.48 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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