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path: root/drivers/kvm/svm.c
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Diffstat (limited to 'drivers/kvm/svm.c')
-rw-r--r--drivers/kvm/svm.c78
1 files changed, 21 insertions, 57 deletions
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index a33a89c68138..0e6bc8c649ce 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -287,7 +287,7 @@ static void svm_hardware_enable(void *garbage)
struct svm_cpu_data *svm_data;
uint64_t efer;
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
struct desc_ptr gdt_descr;
#else
struct Xgt_desc_struct gdt_descr;
@@ -377,6 +377,7 @@ static __init int svm_hardware_setup(void)
void *msrpm_va;
int r;
+ kvm_emulator_want_group7_invlpg();
iopm_pages = alloc_pages(GFP_KERNEL, IOPM_ALLOC_ORDER);
@@ -397,7 +398,7 @@ static __init int svm_hardware_setup(void)
memset(msrpm_va, 0xff, PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER));
msrpm_base = page_to_pfn(msrpm_pages) << PAGE_SHIFT;
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
set_msr_interception(msrpm_va, MSR_GS_BASE, 1, 1);
set_msr_interception(msrpm_va, MSR_FS_BASE, 1, 1);
set_msr_interception(msrpm_va, MSR_KERNEL_GS_BASE, 1, 1);
@@ -704,7 +705,7 @@ static void svm_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt)
static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
{
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
if (vcpu->shadow_efer & KVM_EFER_LME) {
if (!is_paging(vcpu) && (cr0 & CR0_PG_MASK)) {
vcpu->shadow_efer |= KVM_EFER_LMA;
@@ -1097,7 +1098,7 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
case MSR_IA32_APICBASE:
*data = vcpu->apic_base;
break;
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
case MSR_STAR:
*data = vcpu->svm->vmcb->save.star;
break;
@@ -1149,7 +1150,7 @@ static int rdmsr_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
{
switch (ecx) {
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
case MSR_EFER:
set_efer(vcpu, data);
break;
@@ -1172,7 +1173,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
case MSR_IA32_APICBASE:
vcpu->apic_base = data;
break;
-#ifdef __x86_64___
+#ifdef CONFIG_X86_64_
case MSR_STAR:
vcpu->svm->vmcb->save.star = data;
break;
@@ -1345,53 +1346,18 @@ static void kvm_reput_irq(struct kvm_vcpu *vcpu)
static void save_db_regs(unsigned long *db_regs)
{
-#ifdef __x86_64__
- asm ("mov %%dr0, %%rax \n\t"
- "mov %%rax, %[dr0] \n\t"
- "mov %%dr1, %%rax \n\t"
- "mov %%rax, %[dr1] \n\t"
- "mov %%dr2, %%rax \n\t"
- "mov %%rax, %[dr2] \n\t"
- "mov %%dr3, %%rax \n\t"
- "mov %%rax, %[dr3] \n\t"
- : [dr0] "=m"(db_regs[0]),
- [dr1] "=m"(db_regs[1]),
- [dr2] "=m"(db_regs[2]),
- [dr3] "=m"(db_regs[3])
- : : "rax");
-#else
- asm ("mov %%dr0, %%eax \n\t"
- "mov %%eax, %[dr0] \n\t"
- "mov %%dr1, %%eax \n\t"
- "mov %%eax, %[dr1] \n\t"
- "mov %%dr2, %%eax \n\t"
- "mov %%eax, %[dr2] \n\t"
- "mov %%dr3, %%eax \n\t"
- "mov %%eax, %[dr3] \n\t"
- : [dr0] "=m"(db_regs[0]),
- [dr1] "=m"(db_regs[1]),
- [dr2] "=m"(db_regs[2]),
- [dr3] "=m"(db_regs[3])
- : : "eax");
-#endif
+ asm volatile ("mov %%dr0, %0" : "=r"(db_regs[0]));
+ asm volatile ("mov %%dr1, %0" : "=r"(db_regs[1]));
+ asm volatile ("mov %%dr2, %0" : "=r"(db_regs[2]));
+ asm volatile ("mov %%dr3, %0" : "=r"(db_regs[3]));
}
static void load_db_regs(unsigned long *db_regs)
{
- asm volatile ("mov %[dr0], %%dr0 \n\t"
- "mov %[dr1], %%dr1 \n\t"
- "mov %[dr2], %%dr2 \n\t"
- "mov %[dr3], %%dr3 \n\t"
- :
- : [dr0] "r"(db_regs[0]),
- [dr1] "r"(db_regs[1]),
- [dr2] "r"(db_regs[2]),
- [dr3] "r"(db_regs[3])
-#ifdef __x86_64__
- : "rax");
-#else
- : "eax");
-#endif
+ asm volatile ("mov %0, %%dr0" : : "r"(db_regs[0]));
+ asm volatile ("mov %0, %%dr1" : : "r"(db_regs[1]));
+ asm volatile ("mov %0, %%dr2" : : "r"(db_regs[2]));
+ asm volatile ("mov %0, %%dr3" : : "r"(db_regs[3]));
}
static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
@@ -1422,7 +1388,7 @@ again:
load_db_regs(vcpu->svm->db_regs);
}
asm volatile (
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
"push %%rbx; push %%rcx; push %%rdx;"
"push %%rsi; push %%rdi; push %%rbp;"
"push %%r8; push %%r9; push %%r10; push %%r11;"
@@ -1432,7 +1398,7 @@ again:
"push %%esi; push %%edi; push %%ebp;"
#endif
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
"mov %c[rbx](%[vcpu]), %%rbx \n\t"
"mov %c[rcx](%[vcpu]), %%rcx \n\t"
"mov %c[rdx](%[vcpu]), %%rdx \n\t"
@@ -1456,7 +1422,7 @@ again:
"mov %c[rbp](%[vcpu]), %%ebp \n\t"
#endif
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
/* Enter guest mode */
"push %%rax \n\t"
"mov %c[svm](%[vcpu]), %%rax \n\t"
@@ -1477,7 +1443,7 @@ again:
#endif
/* Save guest registers, load host registers */
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
"mov %%rbx, %c[rbx](%[vcpu]) \n\t"
"mov %%rcx, %c[rcx](%[vcpu]) \n\t"
"mov %%rdx, %c[rdx](%[vcpu]) \n\t"
@@ -1518,7 +1484,7 @@ again:
[rsi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RSI])),
[rdi]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RDI])),
[rbp]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_RBP]))
-#ifdef __x86_64__
+#ifdef CONFIG_X86_64
,[r8 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R8 ])),
[r9 ]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R9 ])),
[r10]"i"(offsetof(struct kvm_vcpu, regs[VCPU_REGS_R10])),
@@ -1663,9 +1629,7 @@ static struct kvm_arch_ops svm_arch_ops = {
static int __init svm_init(void)
{
- kvm_emulator_want_group7_invlpg();
- kvm_init_arch(&svm_arch_ops, THIS_MODULE);
- return 0;
+ return kvm_init_arch(&svm_arch_ops, THIS_MODULE);
}
static void __exit svm_exit(void)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 10:42:38 +0000