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 9B520C54EAA for ; Fri, 27 Jan 2023 11:54:57 +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=n4RIZirM8z2YWoQmQVGzE4xYlFUny2u6YIJTziE3sao=; b=m3uTVhr/REIquw ME5cgoHYvU5Xk7WDfxK0bwOKRlpq5k9al08zFIHQUvjq/0g4X0hYctw9sA3IcoN7yMCxQydyr+fKy oHwfMRDN2ZIxTZx4xReH8HrGK8nIvrcMtzjkpTh+gYN8Yv6J1NCVbh8LxKz8V6URfixfOqe4LMA04 mRVXJ3fepLTLolRVgJImfpI5dlkVXkwhs/PgSz2rOssn3Pe6jE0MHLjzifn7iPEW9AHAsu1C6J98Y ySVT0vNUqh1YPWtdVfDPsMx2mc6R3EH6LH6WuV3VjFuSaXSC673LiRX2l2pfOskFXBW5eDeOBzo+j d/+uGVipYZ/AZqRAoXAQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pLNIn-00EJ62-Bs; Fri, 27 Jan 2023 11:53:53 +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 1pLMwR-00E8QY-4F for linux-arm-kernel@lists.infradead.org; Fri, 27 Jan 2023 11:30:48 +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 63CF01713; Fri, 27 Jan 2023 03:31:28 -0800 (PST) Received: from e122027.cambridge.arm.com (e122027.cambridge.arm.com [10.1.35.16]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0B9913F64C; Fri, 27 Jan 2023 03:30:43 -0800 (PST) From: Steven Price To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Steven Price , Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Suzuki K Poulose , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev Subject: [RFC PATCH 25/28] arm64: rme: support RSI_HOST_CALL Date: Fri, 27 Jan 2023 11:29:29 +0000 Message-Id: <20230127112932.38045-26-steven.price@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127112932.38045-1-steven.price@arm.com> References: <20230127112248.136810-1-suzuki.poulose@arm.com> <20230127112932.38045-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230127_033047_259393_43F2BAB0 X-CRM114-Status: GOOD ( 11.98 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joey Gouly Forward RSI_HOST_CALLS to KVM's HVC handler. Signed-off-by: Joey Gouly Signed-off-by: Steven Price --- arch/arm64/kvm/rme-exit.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm64/kvm/rme-exit.c b/arch/arm64/kvm/rme-exit.c index 15a4ff3517db..fcdc87e8f6bc 100644 --- a/arch/arm64/kvm/rme-exit.c +++ b/arch/arm64/kvm/rme-exit.c @@ -4,6 +4,7 @@ */ #include +#include #include #include @@ -98,6 +99,29 @@ static int rec_exit_ripas_change(struct kvm_vcpu *vcpu) return 1; } +static int rec_exit_host_call(struct kvm_vcpu *vcpu) +{ + int ret, i; + struct rec *rec = &vcpu->arch.rec; + + vcpu->stat.hvc_exit_stat++; + + for (i = 0; i < REC_RUN_GPRS; i++) + vcpu_set_reg(vcpu, i, rec->run->exit.gprs[i]); + + ret = kvm_hvc_call_handler(vcpu); + + if (ret < 0) { + vcpu_set_reg(vcpu, 0, ~0UL); + ret = 1; + } + + for (i = 0; i < REC_RUN_GPRS; i++) + rec->run->entry.gprs[i] = vcpu_get_reg(vcpu, i); + + return ret; +} + static void update_arch_timer_irq_lines(struct kvm_vcpu *vcpu) { struct rec *rec = &vcpu->arch.rec; @@ -159,6 +183,8 @@ int handle_rme_exit(struct kvm_vcpu *vcpu, int rec_run_ret) return rec_exit_psci(vcpu); case RMI_EXIT_RIPAS_CHANGE: return rec_exit_ripas_change(vcpu); + case RMI_EXIT_HOST_CALL: + return rec_exit_host_call(vcpu); } kvm_pr_unimpl("Unsupported exit reason: %u\n", -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel