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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-07-18 17:00:01 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-09-10 07:33:15 +0200 |
| commit | b792c344dfd57ee2cf737440e4a9b4a5bc39d1db (patch) | |
| tree | f91b48042d1060bd761e7025d2b5c5b2960b4566 /arch/x86/kvm | |
| parent | KVM: x86: use get_desc_base() and get_desc_limit() (diff) | |
| download | linux-b792c344dfd57ee2cf737440e4a9b4a5bc39d1db.tar.xz linux-b792c344dfd57ee2cf737440e4a9b4a5bc39d1db.zip | |
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 <avi@redhat.com>
Cc: kvm@vger.kernel.org
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/svm.c | 6 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 5 |
2 files changed, 5 insertions, 6 deletions
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)); |