From patchwork Wed Nov 15 07:15:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13456372 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 248E3525F for ; Wed, 15 Nov 2023 07:23:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="n8cOZVMm" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D01D101 for ; Tue, 14 Nov 2023 23:23:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700033023; x=1731569023; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hvMwJXDcUQge67eIhhUdTeDE/Yqg86sFgeotlAtJ8LY=; b=n8cOZVMmPfmaPPNMGixkgBS/sz+Vhx/Hbxyno3vHvFgpoVZZ7CWiJXnE R4lzI+TcyE5D/6rpmB8GzMEJ8jBdyS3p8Unxx0dkNxGAldKwCeL5YrKaX eTIV1OTRP+8VSkqhus0A85OTsAcyQQnecIrNfv8sO3nIUmKCkL69PcTPC iQS+j7+NPIOxD0FQASooEQ9P7uxOAjX5VXnI5/HXS1kcq9YhC20YKZdAQ 8GBTTGE+5VjTaw/82m3v1izFpvEYrSWnts1GE9gnVPE5c0rn3ULcNVF1Q NIlqWHvcxW4XJM8GLpZdSYmZ0TtngwIkDnsBYjWKPGAuRgXryLMyL49GD A==; X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="390623658" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="390623658" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Nov 2023 23:23:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="714800406" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="714800406" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orsmga003.jf.intel.com with ESMTP; 14 Nov 2023 23:23:36 -0800 From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Cornelia Huck , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: [PATCH v3 64/70] hw/i386: add eoi_intercept_unsupported member to X86MachineState Date: Wed, 15 Nov 2023 02:15:13 -0500 Message-Id: <20231115071519.2864957-65-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231115071519.2864957-1-xiaoyao.li@intel.com> References: <20231115071519.2864957-1-xiaoyao.li@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a new bool member, eoi_intercept_unsupported, to X86MachineState with default value false. Set true for TDX VM. Inability to intercept eoi causes impossibility to emulate level triggered interrupt to be re-injected when level is still kept active. which affects interrupt controller emulation. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- hw/i386/x86.c | 1 + include/hw/i386/x86.h | 1 + target/i386/kvm/tdx.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/hw/i386/x86.c b/hw/i386/x86.c index 0f69b55c5219..58206396c2da 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -1413,6 +1413,7 @@ static void x86_machine_initfn(Object *obj) x86ms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); x86ms->bus_lock_ratelimit = 0; x86ms->above_4g_mem_start = 4 * GiB; + x86ms->eoi_intercept_unsupported = false; } static void x86_machine_class_init(ObjectClass *oc, void *data) diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h index ab1d38569019..b689feb389b3 100644 --- a/include/hw/i386/x86.h +++ b/include/hw/i386/x86.h @@ -59,6 +59,7 @@ struct X86MachineState { /* CPU and apic information: */ bool apic_xrupt_override; + bool eoi_intercept_unsupported; unsigned pci_irq_mask; unsigned apic_id_limit; uint16_t boot_cpus; diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 208fe3572839..1e8875f4af34 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -706,6 +706,8 @@ int tdx_kvm_init(MachineState *ms, Error **errp) return -EINVAL; } + x86ms->eoi_intercept_unsupported = true; + if (!tdx_caps) { r = get_tdx_capabilities(errp); if (r) {