From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754043Ab0DVKeR (ORCPT ); Thu, 22 Apr 2010 06:34:17 -0400 Received: from tx2ehsobe001.messaging.microsoft.com ([65.55.88.11]:39818 "EHLO TX2EHSOBE001.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753706Ab0DVKdg (ORCPT ); Thu, 22 Apr 2010 06:33:36 -0400 X-SpamScore: 1 X-BigFish: VPS1(zzab9bhzz1202hzzz32i2a8h87h62h) X-Spam-TCS-SCL: 1:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L19XBO-01-038-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel , stable@kernel.org Subject: [PATCH 5/8] KVM: X86: Add callback to let modules decide over some supported cpuid bits Date: Thu, 22 Apr 2010 12:33:11 +0200 Message-ID: <1271932394-13968-6-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1271932394-13968-1-git-send-email-joerg.roedel@amd.com> References: <1271932394-13968-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 22 Apr 2010 10:33:19.0106 (UTC) FILETIME=[3983AE20:01CAE207] 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. Cc: stable@kernel.org 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 d47d087..357573a 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -528,6 +528,8 @@ struct kvm_x86_ops { int (*get_lpage_level)(void); bool (*rdtscp_supported)(void); + 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 b10d163..0fa2035 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3152,6 +3152,10 @@ 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" }, @@ -3297,6 +3301,8 @@ static struct kvm_x86_ops svm_x86_ops = { .cpuid_update = svm_cpuid_update, .rdtscp_supported = svm_rdtscp_supported, + + .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 d0a10b5..dc023bc 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4111,6 +4111,10 @@ 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, @@ -4183,6 +4187,8 @@ static struct kvm_x86_ops vmx_x86_ops = { .cpuid_update = vmx_cpuid_update, .rdtscp_supported = vmx_rdtscp_supported, + + .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 cf37ac6..c2c3c29 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1960,6 +1960,9 @@ 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(); } -- 1.7.0.4