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authorAkinobu Mita <akinobu.mita@gmail.com>2009-07-19 00:00:01 +0900
committerAvi Kivity <avi@redhat.com>2009-09-10 08:33:15 +0300
commitb792c344dfd57ee2cf737440e4a9b4a5bc39d1db (patch)
treef91b48042d1060bd761e7025d2b5c5b2960b4566 /arch/x86
parent46a359e71526909a18a47aaf4347343d6d1d74b2 (diff)
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')
-rw-r--r--arch/x86/kvm/svm.c6
-rw-r--r--arch/x86/kvm/x86.c5
2 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8728e514c85..92fc0dab505 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 6277a316821..c7ec0c921c0 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));