@@ -2444,6 +2444,45 @@ void kvm_remove_all_breakpoints(CPUState *cpu)
}
#endif /* !KVM_CAP_SET_GUEST_DEBUG */
+int kvm_arch_read_msr(CPUState *cpu, uint32_t index, uint64_t *value)
+{
+ struct {
+ struct kvm_msrs info;
+ struct kvm_msr_entry entries[1];
+ } msr_data;
+ int ret;
+
+ msr_data.info.nmsrs = 1;
+ msr_data.entries[0].index = index;
+ ret = kvm_vcpu_ioctl(cpu, KVM_GET_MSRS, &msr_data);
+ if (ret < 0) {
+ return ret;
+ }
+
+ *value = msr_data.entries[0].data;
+ return 0;
+}
+
+int kvm_arch_write_msr(CPUState *cpu, uint32_t index, uint64_t value)
+{
+ struct {
+ struct kvm_msrs info;
+ struct kvm_msr_entry entries[1];
+ } msr_data;
+ int ret;
+
+ msr_data.info.nmsrs = 1;
+ msr_data.entries[0].index = index;
+ msr_data.entries[0].reserved = 0;
+ msr_data.entries[0].data = value;
+ ret = kvm_vcpu_ioctl(cpu, KVM_SET_MSRS, &msr_data);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return 0;
+}
+
static int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
{
KVMState *s = kvm_state;
@@ -462,6 +462,8 @@ int kvm_vm_check_extension(KVMState *s, unsigned int extension);
uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
uint32_t index, int reg);
uint32_t kvm_arch_get_supported_msr_feature(KVMState *s, uint32_t index);
+int kvm_arch_read_msr(CPUState *cpu, uint32_t index, uint64_t *value);
+int kvm_arch_write_msr(CPUState *cpu, uint32_t index, uint64_t value);
void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
Signed-off-by: Jon Doron <arilou@gmail.com> --- accel/kvm/kvm-all.c | 39 +++++++++++++++++++++++++++++++++++++++ include/sysemu/kvm.h | 2 ++ 2 files changed, 41 insertions(+)