*/
#define KVM_MAX_NR_USER_RETURN_MSRS 16
-struct kvm_user_return_msrs_global {
- int nr;
- u32 msrs[KVM_MAX_NR_USER_RETURN_MSRS];
-};
-
struct kvm_user_return_msrs {
struct user_return_notifier urn;
bool registered;
} values[KVM_MAX_NR_USER_RETURN_MSRS];
};
-static struct kvm_user_return_msrs_global __read_mostly user_return_msrs_global;
+u32 __read_mostly kvm_nr_uret_msrs;
+EXPORT_SYMBOL_GPL(kvm_nr_uret_msrs);
+static u32 __read_mostly kvm_uret_msrs_list[KVM_MAX_NR_USER_RETURN_MSRS];
static struct kvm_user_return_msrs __percpu *user_return_msrs;
#define KVM_SUPPORTED_XCR0 (XFEATURE_MASK_FP | XFEATURE_MASK_SSE \
user_return_notifier_unregister(urn);
}
local_irq_restore(flags);
- for (slot = 0; slot < user_return_msrs_global.nr; ++slot) {
+ for (slot = 0; slot < kvm_nr_uret_msrs; ++slot) {
values = &msrs->values[slot];
if (values->host != values->curr) {
- wrmsrl(user_return_msrs_global.msrs[slot], values->host);
+ wrmsrl(kvm_uret_msrs_list[slot], values->host);
values->curr = values->host;
}
}
void kvm_define_user_return_msr(unsigned slot, u32 msr)
{
BUG_ON(slot >= KVM_MAX_NR_USER_RETURN_MSRS);
- user_return_msrs_global.msrs[slot] = msr;
- if (slot >= user_return_msrs_global.nr)
- user_return_msrs_global.nr = slot + 1;
+ kvm_uret_msrs_list[slot] = msr;
+ if (slot >= kvm_nr_uret_msrs)
+ kvm_nr_uret_msrs = slot + 1;
}
EXPORT_SYMBOL_GPL(kvm_define_user_return_msr);
{
int i;
- for (i = 0; i < user_return_msrs_global.nr; ++i) {
- if (user_return_msrs_global.msrs[i] == msr)
+ for (i = 0; i < kvm_nr_uret_msrs; ++i) {
+ if (kvm_uret_msrs_list[i] == msr)
return i;
}
return -1;
u64 value;
int i;
- for (i = 0; i < user_return_msrs_global.nr; ++i) {
- rdmsrl_safe(user_return_msrs_global.msrs[i], &value);
+ for (i = 0; i < kvm_nr_uret_msrs; ++i) {
+ rdmsrl_safe(kvm_uret_msrs_list[i], &value);
msrs->values[i].host = value;
msrs->values[i].curr = value;
}
value = (value & mask) | (msrs->values[slot].host & ~mask);
if (value == msrs->values[slot].curr)
return 0;
- err = wrmsrl_safe(user_return_msrs_global.msrs[slot], value);
+ err = wrmsrl_safe(kvm_uret_msrs_list[slot], value);
if (err)
return 1;