From nobody Mon Feb 9 16:35:25 2026 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 6BB7EC38A02 for ; Sun, 30 Oct 2022 06:30:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231308AbiJ3GaV (ORCPT ); Sun, 30 Oct 2022 02:30:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230493AbiJ3G2J (ORCPT ); Sun, 30 Oct 2022 02:28:09 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FFA72EE; Sat, 29 Oct 2022 23:24:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1667111077; x=1698647077; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bxQogyGeF26Y2rtQ1vDn3KVS8MkMlSfBtAXMo5C8hPA=; b=MvxW5cuR8ecq7ysLL87E8Rjg0DHhKDzXpgFAV25UldEYGDi1q+VUkZ/a fpTBd+kIrBF79nMiHcb9LP6nZq8uc5LgFYASoM1skdhwCrDVivBxHqQ84 cVCGTjwwWclMPKc+Uk/2MuclSipmUzg7wGlwmBIDVRPV0qiZSrDu+z5t2 e+rYCVuRwOs/9KviERptFuRw3YPm7Nsgo6CqG7NJAlc9AG2wdPKvKk6DO EqIC0lAOWSqWeDgaRpQAwtEFlMTpdboavr/K17wawsgwb4on2dhid7eoi IwIGV6htovy9kZ9Qc/Y/HflTbhNJy1ueiyLrXFUH+escQT0QIY+pN2oK5 w==; X-IronPort-AV: E=McAfee;i="6500,9779,10515"; a="395037187" X-IronPort-AV: E=Sophos;i="5.95,225,1661842800"; d="scan'208";a="395037187" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2022 23:24:09 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10515"; a="878393083" X-IronPort-AV: E=Sophos;i="5.95,225,1661842800"; d="scan'208";a="878393083" Received: from ls.sc.intel.com (HELO localhost) ([143.183.96.54]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2022 23:24:09 -0700 From: isaku.yamahata@intel.com To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: isaku.yamahata@intel.com, isaku.yamahata@gmail.com, Paolo Bonzini , erdemaktas@google.com, Sean Christopherson , Sagi Shahar , David Matlack Subject: [PATCH v10 074/108] KVM: TDX: complete interrupts after tdexit Date: Sat, 29 Oct 2022 23:23:15 -0700 Message-Id: <62b2229edec27f04f0f0a7dbc1ff1fd1b1e13378.1667110240.git.isaku.yamahata@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Isaku Yamahata This corresponds to VMX __vmx_complete_interrupts(). Because TDX virtualize vAPIC, KVM only needs to care NMI injection. Signed-off-by: Isaku Yamahata Reviewed-by: Paolo Bonzini --- arch/x86/kvm/vmx/tdx.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index f35ccf2b502d..af13c19af339 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -456,6 +456,14 @@ void tdx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_e= vent) vcpu->kvm->vm_bugged =3D true; } =20 +static void tdx_complete_interrupts(struct kvm_vcpu *vcpu) +{ + /* Avoid costly SEAMCALL if no nmi was injected */ + if (vcpu->arch.nmi_injected) + vcpu->arch.nmi_injected =3D td_management_read8(to_tdx(vcpu), + TD_VCPU_PEND_NMI); +} + struct tdx_uret_msr { u32 msr; unsigned int slot; @@ -524,6 +532,8 @@ fastpath_t tdx_vcpu_run(struct kvm_vcpu *vcpu) vcpu->arch.regs_avail &=3D ~VMX_REGS_LAZY_LOAD_SET; trace_kvm_exit(vcpu, KVM_ISA_VMX); =20 + tdx_complete_interrupts(vcpu); + return EXIT_FASTPATH_NONE; } =20 --=20 2.25.1