KVM: x86: use get_desc_base() and get_desc_limit()
Use get_desc_base() and get_desc_limit() to get the base address and
limit in desc_struct.
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>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b87d65d..6277a31 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -142,8 +142,7 @@
table_base = segment_base(ldt_selector);
}
d = (struct desc_struct *)(table_base + (selector & ~7));
- v = d->base0 | ((unsigned long)d->base1 << 16) |
- ((unsigned long)d->base2 << 24);
+ v = get_desc_base(d);
#ifdef CONFIG_X86_64
if (d->s == 0 && (d->type == 2 || d->type == 9 || d->type == 11))
v |= ((unsigned long)((struct ldttss_desc64 *)d)->base3) << 32;
@@ -3947,11 +3946,8 @@
static void seg_desct_to_kvm_desct(struct desc_struct *seg_desc, u16 selector,
struct kvm_segment *kvm_desct)
{
- kvm_desct->base = seg_desc->base0;
- kvm_desct->base |= seg_desc->base1 << 16;
- kvm_desct->base |= seg_desc->base2 << 24;
- kvm_desct->limit = seg_desc->limit0;
- kvm_desct->limit |= seg_desc->limit << 16;
+ kvm_desct->base = get_desc_base(seg_desc);
+ kvm_desct->limit = get_desc_limit(seg_desc);
if (seg_desc->g) {
kvm_desct->limit <<= 12;
kvm_desct->limit |= 0xfff;
@@ -4030,11 +4026,7 @@
static u32 get_tss_base_addr(struct kvm_vcpu *vcpu,
struct desc_struct *seg_desc)
{
- u32 base_addr;
-
- base_addr = seg_desc->base0;
- base_addr |= (seg_desc->base1 << 16);
- base_addr |= (seg_desc->base2 << 24);
+ u32 base_addr = get_desc_base(seg_desc);
return vcpu->arch.mmu.gva_to_gpa(vcpu, base_addr);
}
@@ -4323,7 +4315,7 @@
}
}
- if (!nseg_desc.p || (nseg_desc.limit0 | nseg_desc.limit << 16) < 0x67) {
+ if (!nseg_desc.p || get_desc_limit(&nseg_desc) < 0x67) {
kvm_queue_exception_e(vcpu, TS_VECTOR, tss_selector & 0xfffc);
return 1;
}