From: Akinobu Mita Date: Sat, 18 Jul 2009 15:00:01 +0000 (+0900) Subject: KVM: x86: use kvm_get_gdt() and kvm_read_ldt() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b792c344dfd57ee2cf737440e4a9b4a5bc39d1db;p=linux-beck.git KVM: x86: use kvm_get_gdt() and kvm_read_ldt() Use kvm_get_gdt() and kvm_read_ldt() to reduce inline assembly code. Cc: Avi Kivity Cc: kvm@vger.kernel.org Signed-off-by: Akinobu Mita Signed-off-by: Marcelo Tosatti --- diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 8728e514c851..92fc0dab505d 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -290,7 +290,7 @@ static void svm_hardware_enable(void *garbage) struct svm_cpu_data *svm_data; uint64_t efer; - struct desc_ptr gdt_descr; + struct descriptor_table gdt_descr; struct desc_struct *gdt; int me = raw_smp_processor_id(); @@ -310,8 +310,8 @@ static void svm_hardware_enable(void *garbage) svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1; svm_data->next_asid = svm_data->max_asid + 1; - asm volatile ("sgdt %0" : "=m"(gdt_descr)); - gdt = (struct desc_struct *)gdt_descr.address; + kvm_get_gdt(&gdt_descr); + gdt = (struct desc_struct *)gdt_descr.base; svm_data->tss_desc = (struct kvm_ldttss_desc *)(gdt + GDT_ENTRY_TSS); rdmsrl(MSR_EFER, efer); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 6277a316821e..c7ec0c921c01 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -132,13 +132,12 @@ unsigned long segment_base(u16 selector) if (selector == 0) return 0; - asm("sgdt %0" : "=m"(gdt)); + kvm_get_gdt(&gdt); table_base = gdt.base; if (selector & 4) { /* from ldt */ - u16 ldt_selector; + u16 ldt_selector = kvm_read_ldt(); - asm("sldt %0" : "=g"(ldt_selector)); table_base = segment_base(ldt_selector); } d = (struct desc_struct *)(table_base + (selector & ~7));