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Message-ID: <1310571145-28930-3-git-send-email-joerg.roedel@amd.com> Date: Wed, 13 Jul 2011 17:32:20 +0200 From: Joerg Roedel <joerg.roedel@....com> To: Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com> CC: <kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Joerg Roedel <joerg.roedel@....com> Subject: [PATCH 2/7] KVM: SVM: Use host_vmcb_pa for vmload and vmsave This saves copying over the vmload/vmsave switched part from the host to the guest vmcb later. Signed-off-by: Joerg Roedel <joerg.roedel@....com> --- arch/x86/kvm/svm.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 3d5990f..dc703ac 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3704,9 +3704,13 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) /* Enter guest mode */ "push %%"R"ax \n\t" - "mov %c[vmcb](%[svm]), %%"R"ax \n\t" + "mov %c[host_vmcb](%[svm]), %%"R"ax \n\t" __ex(SVM_VMLOAD) "\n\t" + "mov (%%"R"sp), %%"R"ax\n\t" + "mov %c[vmcb](%[svm]), %%"R"ax \n\t" __ex(SVM_VMRUN) "\n\t" + "mov (%%"R"sp), %%"R"ax\n\t" + "mov %c[host_vmcb](%[svm]), %%"R"ax \n\t" __ex(SVM_VMSAVE) "\n\t" "pop %%"R"ax \n\t" @@ -3731,6 +3735,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) : : [svm]"a"(svm), [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)), + [host_vmcb]"i"(offsetof(struct vcpu_svm, host_vmcb_pa)), [rbx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBX])), [rcx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RCX])), [rdx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDX])), -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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