From patchwork Tue Sep 24 15:21:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heyi Guo X-Patchwork-Id: 11159105 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5AEDC14ED for ; Tue, 24 Sep 2019 15:27:00 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 38E1F20665 for ; Tue, 24 Sep 2019 15:27:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ERrQrkQ5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 38E1F20665 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=fEmeFgjSnUVeB5amDk4utnPtCwanS/+eaFKeufatnNY=; b=ERrQrkQ5kBfmV8 OPtgFqZfz5gu9hPSigEbRmfWWIUIe6jL1udBYMDkCmJXLxkeOab7RXXeLe1+9EhrJ4NSbCbadglZh tYy0fadDAybKojQU3Xew4/zc7CILpSc9rtz1Wjb7rp5n6XlpRPj6KEgffs4u1uwlVQ3WHhJBGYDP2 L73Ww01xf1fjVsMHns+mTNm+8LMhgZvgYRVXcw4XINbtSR9v7aJuCh3jAmSAm8pYo54tTTh0GKVLx JLCy3TFqVhgYccII1gk/C0sH+l1J/zzcDUHtr/btG4aeqkgTO3LAS/37XFGRgs6LS60mUBrHI2vGC lwklux5BLbdYv94ByjUg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCmiQ-0006zO-F7; Tue, 24 Sep 2019 15:26:58 +0000 Received: from szxga07-in.huawei.com ([45.249.212.35] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92.2 #3 (Red Hat Linux)) id 1iCmf8-0003A0-3A for linux-arm-kernel@lists.infradead.org; Tue, 24 Sep 2019 15:23:36 +0000 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 619AEE0D577D65100598; Tue, 24 Sep 2019 23:23:32 +0800 (CST) Received: from linux-Bxxcye.huawei.com (10.175.104.222) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.439.0; Tue, 24 Sep 2019 23:23:21 +0800 From: Heyi Guo To: , , , Subject: [RFC PATCH 11/12] arm/kvm: handle guest exit of hypercall Date: Tue, 24 Sep 2019 23:21:50 +0800 Message-ID: <1569338511-3572-12-git-send-email-guoheyi@huawei.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1569338511-3572-1-git-send-email-guoheyi@huawei.com> References: <1569338511-3572-1-git-send-email-guoheyi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.104.222] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190924_082334_728354_808CD7C8 X-CRM114-Status: GOOD ( 10.14 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [45.249.212.35 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Peter Maydell , Marc Zyngier , James Morse , Heyi Guo , wanghaibin.wang@huawei.com, Dave Martin Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add support to handle guest exit of hypercall, and forward to SDEI dispatcher if SDEI is enabled and it is an SDEI request. Signed-off-by: Heyi Guo Cc: Peter Maydell Cc: Dave Martin Cc: Marc Zyngier Cc: Mark Rutland Cc: James Morse --- target/arm/kvm.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target/arm/kvm.c b/target/arm/kvm.c index b2eaa50..97a67b1 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -30,6 +30,7 @@ #include "hw/boards.h" #include "hw/irq.h" #include "qemu/log.h" +#include "sdei.h" const KVMCapabilityInfo kvm_arch_required_capabilities[] = { KVM_CAP_LAST_INFO @@ -668,6 +669,19 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) } +static void kvm_arm_handle_hypercall(CPUState *cs, struct kvm_run *run) +{ + uint32_t func_id = run->hypercall.args[0]; + + if (sdei_enabled && + func_id >= SDEI_1_0_FN_BASE && func_id <= SDEI_MAX_REQ) { + sdei_handle_request(cs, run); + } else { + run->hypercall.args[0] = -1; + } +} + + int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) { int ret = 0; @@ -678,6 +692,9 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) ret = EXCP_DEBUG; } /* otherwise return to guest */ break; + case KVM_EXIT_HYPERCALL: + kvm_arm_handle_hypercall(cs, run); + break; default: qemu_log_mask(LOG_UNIMP, "%s: un-handled exit reason %d\n", __func__, run->exit_reason);