From patchwork Fri Jan 27 11:39:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suzuki K Poulose X-Patchwork-Id: 13118591 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 95B10C54EAA for ; Fri, 27 Jan 2023 12:13:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id: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=BKOXfWZzjoXwRgXcFTZZqjftENqQr23dZnyPCF8QfDw=; b=BdSxNC7ZHfDrQ7 cheSZb7yul3ngYz98DZeiR60XLwMnMy3ma/SbiJy5JIzOndMB5YKS0SVaZQM/MMeDEC+fOmRiybrh O8n8gerheY0Auc0J5PNXwOsjeknn2HeetIaVf6HnVDc7mOYKOrdmk9Yekc3KrTZVcx4mqnuXPObMO oa78WxnNUDTh5gLd93d7hSXejVW/jThEvY1EcciQZs0cDfFHSk1MAjnYFP3tp9GLfriW71ZRjtiqH aZvNWzYtVuAKTcZwS+AIdl2497ByuOAu3r0M6KoCwTjFtmSJSQ7OanmH20gtZ724MDMro3+wpJ51t lmdA603iiX2So0Ah230w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLNbA-00ERzj-3i; Fri, 27 Jan 2023 12:12:52 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLN6F-00EDCT-5X for linux-arm-kernel@lists.infradead.org; Fri, 27 Jan 2023 11:40:57 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 68CBE1595; Fri, 27 Jan 2023 03:41:36 -0800 (PST) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D6C173F64C; Fri, 27 Jan 2023 03:40:51 -0800 (PST) From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: suzuki.poulose@arm.com, Alexandru Elisei , Andrew Jones , Christoffer Dall , Fuad Tabba , Jean-Philippe Brucker , Joey Gouly , Marc Zyngier , Mark Rutland , Oliver Upton , Paolo Bonzini , Quentin Perret , Steven Price , Thomas Huth , Will Deacon , Zenghui Yu , linux-coco@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC kvmtool 23/31] arm64: Specify SMC as the PSCI conduits for realms Date: Fri, 27 Jan 2023 11:39:24 +0000 Message-Id: <20230127113932.166089-24-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127113932.166089-1-suzuki.poulose@arm.com> References: <20230127112248.136810-1-suzuki.poulose@arm.com> <20230127113932.166089-1-suzuki.poulose@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_034055_324603_C5BA64D0 X-CRM114-Status: UNSURE ( 9.20 ) 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 From: Christoffer Dall This lets the VM use the RMM implementation for PSCI. Signed-off-by: Christoffer Dall Signed-off-by: Alexandru Elisei Signed-off-by: Suzuki K Poulose --- arm/fdt.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arm/fdt.c b/arm/fdt.c index 762a604d..c46ff410 100644 --- a/arm/fdt.c +++ b/arm/fdt.c @@ -208,7 +208,14 @@ static int setup_fdt(struct kvm *kvm) _FDT(fdt_property_string(fdt, "compatible", "arm,psci")); fns = &psci_0_1_fns; } - _FDT(fdt_property_string(fdt, "method", "hvc")); + + + if (kvm->cfg.arch.is_realm) { + _FDT(fdt_property_string(fdt, "method", "smc")); + } else { + _FDT(fdt_property_string(fdt, "method", "hvc")); + } + _FDT(fdt_property_cell(fdt, "cpu_suspend", fns->cpu_suspend)); _FDT(fdt_property_cell(fdt, "cpu_off", fns->cpu_off)); _FDT(fdt_property_cell(fdt, "cpu_on", fns->cpu_on));