From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756195Ab0CCTPt (ORCPT ); Wed, 3 Mar 2010 14:15:49 -0500 Received: from va3ehsobe005.messaging.microsoft.com ([216.32.180.15]:20936 "EHLO VA3EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754052Ab0CCTNE (ORCPT ); Wed, 3 Mar 2010 14:13:04 -0500 X-SpamScore: -4 X-BigFish: VPS-4(zz936eMab9bhzz1202hzzz32i6bh2a8h87h62h) X-Spam-TCS-SCL: 1:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0KYQ01C-02-H5L-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: Alexander Graf , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 16/18] KVM: X86: Add callback to let modules decide over some supported cpuid bits Date: Wed, 3 Mar 2010 20:12:19 +0100 Message-ID: <1267643541-451-17-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0 In-Reply-To: <1267643541-451-1-git-send-email-joerg.roedel@amd.com> References: <1267643541-451-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 03 Mar 2010 19:12:42.0829 (UTC) FILETIME=[7FE2EFD0:01CABB05] MIME-Version: 1.0 Content-Type: text/plain X-Reverse-DNS: ausb3extmailp02.amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds the get_supported_cpuid callback to kvm_x86_ops. It will be used in do_cpuid_ent to delegate the decission about some supported cpuid bits to the architecture modules. Signed-off-by: Joerg Roedel --- arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/svm.c | 6 ++++++ arch/x86/kvm/vmx.c | 6 ++++++ arch/x86/kvm/x86.c | 3 +++ 4 files changed, 17 insertions(+), 0 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 66a698e..7d649f9 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -555,6 +555,8 @@ struct kvm_x86_ops { bool (*rdtscp_supported)(void); void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); + void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry); + const struct trace_print_flags *exit_reasons_str; }; diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index bce10fe..fe1398e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3287,6 +3287,10 @@ static void svm_cpuid_update(struct kvm_vcpu *vcpu) { } +static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) +{ +} + static const struct trace_print_flags svm_exit_reasons_str[] = { { SVM_EXIT_READ_CR0, "read_cr0" }, { SVM_EXIT_READ_CR3, "read_cr3" }, @@ -3435,6 +3439,8 @@ static struct kvm_x86_ops svm_x86_ops = { .rdtscp_supported = svm_rdtscp_supported, .set_tdp_cr3 = set_tdp_cr3, + + .set_supported_cpuid = svm_set_supported_cpuid, }; static int __init svm_init(void) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 530d14d..9216867 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4146,6 +4146,10 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) } } +static void vmx_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) +{ +} + static struct kvm_x86_ops vmx_x86_ops = { .cpu_has_kvm_support = cpu_has_kvm_support, .disabled_by_bios = vmx_disabled_by_bios, @@ -4220,6 +4224,8 @@ static struct kvm_x86_ops vmx_x86_ops = { .rdtscp_supported = vmx_rdtscp_supported, .set_tdp_cr3 = vmx_set_cr3, + + .set_supported_cpuid = vmx_set_supported_cpuid, }; static int __init vmx_init(void) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9f8b02d..53360de 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1921,6 +1921,9 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, entry->ecx &= kvm_supported_word6_x86_features; break; } + + kvm_x86_ops->set_supported_cpuid(function, entry); + put_cpu(); } -- 1.7.0