From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758275AbYCaOmp (ORCPT ); Mon, 31 Mar 2008 10:42:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752779AbYCaOhl (ORCPT ); Mon, 31 Mar 2008 10:37:41 -0400 Received: from bzq-179-150-194.static.bezeqint.net ([212.179.150.194]:51311 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751469AbYCaOhd (ORCPT ); Mon, 31 Mar 2008 10:37:33 -0400 From: Avi Kivity To: kvm-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 19/40] KVM: allow access to EFER in 32bit KVM Date: Mon, 31 Mar 2008 17:37:03 +0300 Message-Id: <1206974244-9716-20-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.4.5 In-Reply-To: <1206974244-9716-1-git-send-email-avi@qumranet.com> References: <1206974244-9716-1-git-send-email-avi@qumranet.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel This patch makes the EFER register accessible on a 32bit KVM host. This is necessary to boot 32 bit PAE guests under SVM. Signed-off-by: Joerg Roedel Signed-off-by: Avi Kivity --- arch/x86/kvm/x86.c | 10 ---------- 1 files changed, 0 insertions(+), 10 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index db16f23..38edb2f 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -432,8 +432,6 @@ static u32 emulated_msrs[] = { MSR_IA32_MISC_ENABLE, }; -#ifdef CONFIG_X86_64 - static void set_efer(struct kvm_vcpu *vcpu, u64 efer) { if (efer & efer_reserved_bits) { @@ -458,8 +456,6 @@ static void set_efer(struct kvm_vcpu *vcpu, u64 efer) vcpu->arch.shadow_efer = efer; } -#endif - void kvm_enable_efer_bits(u64 mask) { efer_reserved_bits &= ~mask; @@ -489,11 +485,9 @@ static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data) int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data) { switch (msr) { -#ifdef CONFIG_X86_64 case MSR_EFER: set_efer(vcpu, data); break; -#endif case MSR_IA32_MC0_STATUS: pr_unimpl(vcpu, "%s: MSR_IA32_MC0_STATUS 0x%llx, nop\n", __FUNCTION__, data); @@ -571,11 +565,9 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_IA32_MISC_ENABLE: data = vcpu->arch.ia32_misc_enable_msr; break; -#ifdef CONFIG_X86_64 case MSR_EFER: data = vcpu->arch.shadow_efer; break; -#endif default: pr_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr); return 1; @@ -2880,9 +2872,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, set_cr8(vcpu, sregs->cr8); mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer; -#ifdef CONFIG_X86_64 kvm_x86_ops->set_efer(vcpu, sregs->efer); -#endif kvm_set_apic_base(vcpu, sregs->apic_base); kvm_x86_ops->decache_cr4_guest_bits(vcpu); -- 1.5.4.5