From patchwork Thu Sep 14 03:51:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13384369 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 661A4CA0ECE for ; Thu, 14 Sep 2023 03:52:59 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qgdOe-0006df-RR; Wed, 13 Sep 2023 23:52:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgdOd-0006VL-2N for qemu-devel@nongnu.org; Wed, 13 Sep 2023 23:52:03 -0400 Received: from mgamail.intel.com ([134.134.136.24]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qgdOb-0000r7-6v for qemu-devel@nongnu.org; Wed, 13 Sep 2023 23:52:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694663521; x=1726199521; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8xg5bqjhBbAM8gPiQzHBRvDRVKCRRm1mhZpgTQ/bsFc=; b=jQpDTDcUpcnxirxhw6LRF6RGNhKOy7uVYxcJUJnz3KzOS7bLAQuUVrjk ayg6tiEwZfkttGV7bu0SUPl/+7RyNpDT6s5a4QAziOrfTumSwvMtIOalq gv7gSaFwz+PTE7m00Np0Yg1FT1hWww9dB1uU8mr7rT9ij7+85DF6FbOCZ 35VWDIx4ty3iX5+x2agrNZF1xzJPuzzjkIOFHQUlWOLfURhDDvUkwqFAq qjdC5ejad0RdMWvA8lZDVHY5cWhkDVlfQA86sspUfROZbSXb6TWDgZ4rE QuNIw766ad6+2X8OlX3qGL+cYv6tHMaYiKL+uhgXQ+IS4LiwnSDwBaDW6 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="381528409" X-IronPort-AV: E=Sophos;i="6.02,144,1688454000"; d="scan'208";a="381528409" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2023 20:52:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10832"; a="814500596" X-IronPort-AV: E=Sophos;i="6.02,144,1688454000"; d="scan'208";a="814500596" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmsmga004.fm.intel.com with ESMTP; 13 Sep 2023 20:51:55 -0700 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 , isaku.yamahata@gmail.com, Sean Christopherson , Claudio Fontana Subject: [RFC PATCH v2 08/21] target/i386: Implement mc->kvm_type() to get VM type Date: Wed, 13 Sep 2023 23:51:04 -0400 Message-Id: <20230914035117.3285885-9-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230914035117.3285885-1-xiaoyao.li@intel.com> References: <20230914035117.3285885-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=134.134.136.24; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.001, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Implement mc->kvm_type() for i386 machines. It provides a way for user to create SW_PROTECTE_VM. Also store the vm_type in machinestate to other code to query what the VM type is. Signed-off-by: Xiaoyao Li --- hw/i386/x86.c | 12 ++++++++++++ include/hw/i386/x86.h | 1 + target/i386/kvm/kvm.c | 30 ++++++++++++++++++++++++++++++ target/i386/kvm/kvm_i386.h | 1 + 4 files changed, 44 insertions(+) diff --git a/hw/i386/x86.c b/hw/i386/x86.c index a88a126123be..660f83935315 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -1382,6 +1382,17 @@ static void machine_set_sgx_epc(Object *obj, Visitor *v, const char *name, qapi_free_SgxEPCList(list); } +static int x86_kvm_type(MachineState *ms, const char *vm_type) +{ + X86MachineState *x86ms = X86_MACHINE(ms); + int kvm_type; + + kvm_type = kvm_get_vm_type(ms, vm_type); + x86ms->vm_type = kvm_type; + + return kvm_type; +} + static void x86_machine_initfn(Object *obj) { X86MachineState *x86ms = X86_MACHINE(obj); @@ -1406,6 +1417,7 @@ static void x86_machine_class_init(ObjectClass *oc, void *data) mc->cpu_index_to_instance_props = x86_cpu_index_to_props; mc->get_default_cpu_node_id = x86_get_default_cpu_node_id; mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids; + mc->kvm_type = x86_kvm_type; x86mc->save_tsc_khz = true; x86mc->fwcfg_dma_enabled = true; nc->nmi_monitor_handler = x86_nmi; diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h index da19ae15463a..ab1d38569019 100644 --- a/include/hw/i386/x86.h +++ b/include/hw/i386/x86.h @@ -41,6 +41,7 @@ struct X86MachineState { MachineState parent; /*< public >*/ + unsigned int vm_type; /* Pointers to devices and objects: */ ISADevice *rtc; diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index f8cc8eb1fe70..d1cf6c1f63b3 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -32,6 +32,7 @@ #include "sysemu/runstate.h" #include "kvm_i386.h" #include "sev.h" +#include "sw-protected-vm.h" #include "xen-emu.h" #include "hyperv.h" #include "hyperv-proto.h" @@ -154,6 +155,35 @@ static KVMMSRHandlers msr_handlers[KVM_MSR_FILTER_MAX_RANGES]; static RateLimit bus_lock_ratelimit_ctrl; static int kvm_get_one_msr(X86CPU *cpu, int index, uint64_t *value); +static const char* vm_type_name[] = { + [KVM_X86_DEFAULT_VM] = "default", + [KVM_X86_SW_PROTECTED_VM] = "sw-protected-vm", +}; + +int kvm_get_vm_type(MachineState *ms, const char *vm_type) +{ + int kvm_type = KVM_X86_DEFAULT_VM; + + if (ms->cgs && object_dynamic_cast(OBJECT(ms->cgs), TYPE_SW_PROTECTED_VM)) { + kvm_type = KVM_X86_SW_PROTECTED_VM; + } + + /* + * old KVM doesn't support KVM_CAP_VM_TYPES and KVM_X86_DEFAULT_VM + * is always supported + */ + if (kvm_type == KVM_X86_DEFAULT_VM) { + return kvm_type; + } + + if (!(kvm_check_extension(KVM_STATE(ms->accelerator), KVM_CAP_VM_TYPES) & BIT(kvm_type))) { + error_report("vm-type %s not supported by KVM", vm_type_name[kvm_type]); + exit(1); + } + + return kvm_type; +} + int kvm_has_pit_state2(void) { return has_pit_state2; diff --git a/target/i386/kvm/kvm_i386.h b/target/i386/kvm/kvm_i386.h index e24753abfe6a..ea3a5b174ac0 100644 --- a/target/i386/kvm/kvm_i386.h +++ b/target/i386/kvm/kvm_i386.h @@ -37,6 +37,7 @@ bool kvm_has_adjust_clock(void); bool kvm_has_adjust_clock_stable(void); bool kvm_has_exception_payload(void); void kvm_synchronize_all_tsc(void); +int kvm_get_vm_type(MachineState *ms, const char *vm_type); void kvm_arch_reset_vcpu(X86CPU *cs); void kvm_arch_after_reset_vcpu(X86CPU *cpu); void kvm_arch_do_init_vcpu(X86CPU *cs);