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KVM: use desc_ptr struct instead of kvm private descriptor_table

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x86 arch defines desc_ptr for idt/gdt pointers, no need to define
another structure in kvm code.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov
2010-02-16 10:51:48 +02:00
committed by Avi Kivity
parent 679613442f
commit 89a27f4d0e
4 changed files with 61 additions and 66 deletions
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36
arch/x86/kvm/vmx.c
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@@ -600,11 +600,11 @@ static void reload_tss(void)
/*
* VT restores TR but not its size. Useless.
*/
struct descriptor_table gdt;
struct desc_ptr gdt;
struct desc_struct *descs;
kvm_get_gdt(&gdt);
descs = (void *)gdt.base;
descs = (void *)gdt.address;
descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
load_TR_desc();
}
@@ -758,7 +758,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
}
if (vcpu->cpu != cpu) {
struct descriptor_table dt;
struct desc_ptr dt;
unsigned long sysenter_esp;
vcpu->cpu = cpu;
@@ -768,7 +768,7 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
*/
vmcs_writel(HOST_TR_BASE, kvm_read_tr_base()); /* 22.2.4 */
kvm_get_gdt(&dt);
vmcs_writel(HOST_GDTR_BASE, dt.base); /* 22.2.4 */
vmcs_writel(HOST_GDTR_BASE, dt.address); /* 22.2.4 */
rdmsrl(MSR_IA32_SYSENTER_ESP, sysenter_esp);
vmcs_writel(HOST_IA32_SYSENTER_ESP, sysenter_esp); /* 22.2.3 */
@@ -1934,28 +1934,28 @@ static void vmx_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l)
*l = (ar >> 13) & 1;
}
static void vmx_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
static void vmx_get_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
{
dt->limit = vmcs_read32(GUEST_IDTR_LIMIT);
dt->base = vmcs_readl(GUEST_IDTR_BASE);
dt->size = vmcs_read32(GUEST_IDTR_LIMIT);
dt->address = vmcs_readl(GUEST_IDTR_BASE);
}
static void vmx_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
static void vmx_set_idt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
{
vmcs_write32(GUEST_IDTR_LIMIT, dt->limit);
vmcs_writel(GUEST_IDTR_BASE, dt->base);
vmcs_write32(GUEST_IDTR_LIMIT, dt->size);
vmcs_writel(GUEST_IDTR_BASE, dt->address);
}
static void vmx_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
static void vmx_get_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
{
dt->limit = vmcs_read32(GUEST_GDTR_LIMIT);
dt->base = vmcs_readl(GUEST_GDTR_BASE);
dt->size = vmcs_read32(GUEST_GDTR_LIMIT);
dt->address = vmcs_readl(GUEST_GDTR_BASE);
}
static void vmx_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
static void vmx_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
{
vmcs_write32(GUEST_GDTR_LIMIT, dt->limit);
vmcs_writel(GUEST_GDTR_BASE, dt->base);
vmcs_write32(GUEST_GDTR_LIMIT, dt->size);
vmcs_writel(GUEST_GDTR_BASE, dt->address);
}
static bool rmode_segment_valid(struct kvm_vcpu *vcpu, int seg)
@@ -2334,7 +2334,7 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
u32 junk;
u64 host_pat, tsc_this, tsc_base;
unsigned long a;
struct descriptor_table dt;
struct desc_ptr dt;
int i;
unsigned long kvm_vmx_return;
u32 exec_control;
@@ -2416,7 +2416,7 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8); /* 22.2.4 */
kvm_get_idt(&dt);
vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */
vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */
asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return));
vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */