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: 13118468 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AD33C38142 for ; Fri, 27 Jan 2023 11:42:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233912AbjA0LmN (ORCPT ); Fri, 27 Jan 2023 06:42:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32820 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233870AbjA0Llo (ORCPT ); Fri, 27 Jan 2023 06:41:44 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DFAFA7264A; Fri, 27 Jan 2023 03:41:10 -0800 (PST) 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 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.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));