From patchwork Tue Jan 12 10:50:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Smetanin X-Patchwork-Id: 566482 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 89189140A98 for ; Tue, 12 Jan 2016 21:52:28 +1100 (AEDT) Received: from localhost ([::1]:59147 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aIwYs-0007wd-K5 for incoming@patchwork.ozlabs.org; Tue, 12 Jan 2016 05:52:26 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58982) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aIwYP-000725-I5 for qemu-devel@nongnu.org; Tue, 12 Jan 2016 05:51:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aIwYM-0007bD-Ad for qemu-devel@nongnu.org; Tue, 12 Jan 2016 05:51:57 -0500 Received: from mailhub.sw.ru ([195.214.232.25]:48988 helo=relay.sw.ru) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aIwYL-0007b9-Tr for qemu-devel@nongnu.org; Tue, 12 Jan 2016 05:51:54 -0500 Received: from asm-pc.sw.ru ([10.30.16.30]) by relay.sw.ru (8.13.4/8.13.4) with ESMTP id u0B3X33c009385; Mon, 11 Jan 2016 06:33:26 +0300 (MSK) From: Andrey Smetanin To: kvm@vger.kernel.org Date: Tue, 12 Jan 2016 13:50:42 +0300 Message-Id: <1452595842-20880-6-git-send-email-asmetanin@virtuozzo.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1452595842-20880-1-git-send-email-asmetanin@virtuozzo.com> References: <1452595842-20880-1-git-send-email-asmetanin@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: OpenBSD 3.x X-Received-From: 195.214.232.25 Cc: Gleb Natapov , Joerg Roedel , qemu-devel@nongnu.org, Roman Kagan , "Denis V. Lunev" , Paolo Bonzini , "K. Y. Srinivasan" , Haiyang Zhang Subject: [Qemu-devel] [PATCH v1 5/5] kvm/x86: Reject Hyper-V hypercall continuation X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Currently we do not support Hyper-V hypercall continuation so reject it. Signed-off-by: Andrey Smetanin Reviewed-by: Roman Kagan CC: Gleb Natapov CC: Paolo Bonzini CC: Joerg Roedel CC: "K. Y. Srinivasan" CC: Haiyang Zhang CC: Roman Kagan CC: Denis V. Lunev CC: qemu-devel@nongnu.org --- arch/x86/kvm/hyperv.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 76c9ec4..bc4884e 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1083,6 +1083,12 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) trace_kvm_hv_hypercall(code, fast, rep_cnt, rep_idx, ingpa, outgpa); + /* Hypercall continuation is not supported yet */ + if (rep_cnt || rep_idx) { + res = HV_STATUS_INVALID_HYPERCALL_CODE; + goto set_result; + } + switch (code) { case HV_X64_HCALL_NOTIFY_LONG_SPIN_WAIT: kvm_vcpu_on_spin(vcpu); @@ -1099,6 +1105,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) break; } +set_result: ret = res | (((u64)rep_done & 0xfff) << 32); kvm_hv_hypercall_set_result(vcpu, ret); return 1;