25 #ifndef SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
26 #define SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
27
28 #include "memory/allStatic.hpp" // For declaration of class AllStatic
29 #include "utilities/globalDefinitions.hpp"
30
31 typedef enum {
32 NoDetectedVirtualization,
33 XenHVM,
34 XenPVHVM, // mix-mode on Linux aarch64
35 KVM,
36 VMWare,
37 HyperV,
38 HyperVRole,
39 PowerVM, // on AIX or Linux ppc64(le)
40 PowerFullPartitionMode, // on Linux ppc64(le)
41 PowerKVM
42 } VirtualizationType;
43
44 class outputStream;
45 enum class vmIntrinsicID;
46
47 // Abstract_VM_Version provides information about the VM.
48
49 class Abstract_VM_Version: AllStatic {
50 friend class VMStructs;
51 friend class JVMCIVMStructs;
52
53 protected:
54 static const char* _s_vm_release;
55 static const char* _s_internal_vm_info_string;
56
57 // CPU feature flags, can be affected by VM settings.
58 static uint64_t _features;
59
60 static const char* _features_string;
61
62 static const char* _cpu_info_string;
63
64 // Original CPU feature flags, not affected by VM settings.
209
210 protected:
211 // VM_Version statics
212 static const size_t CPU_TYPE_DESC_BUF_SIZE = 256;
213 static const size_t CPU_DETAILED_DESC_BUF_SIZE = 4096;
214
215 static int _no_of_threads;
216 static int _no_of_cores;
217 static int _no_of_sockets;
218 static bool _initialized;
219 static char _cpu_name[CPU_TYPE_DESC_BUF_SIZE];
220 static char _cpu_desc[CPU_DETAILED_DESC_BUF_SIZE];
221
222 public:
223 static int number_of_threads(void);
224 static int number_of_cores(void);
225 static int number_of_sockets(void);
226
227 static const char* cpu_name(void);
228 static const char* cpu_description(void);
229 };
230
231 #endif // SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
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25 #ifndef SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
26 #define SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
27
28 #include "memory/allStatic.hpp" // For declaration of class AllStatic
29 #include "utilities/globalDefinitions.hpp"
30
31 typedef enum {
32 NoDetectedVirtualization,
33 XenHVM,
34 XenPVHVM, // mix-mode on Linux aarch64
35 KVM,
36 VMWare,
37 HyperV,
38 HyperVRole,
39 PowerVM, // on AIX or Linux ppc64(le)
40 PowerFullPartitionMode, // on Linux ppc64(le)
41 PowerKVM
42 } VirtualizationType;
43
44 class outputStream;
45 class stringStream;
46 enum class vmIntrinsicID;
47
48 // Abstract_VM_Version provides information about the VM.
49
50 class Abstract_VM_Version: AllStatic {
51 friend class VMStructs;
52 friend class JVMCIVMStructs;
53
54 protected:
55 static const char* _s_vm_release;
56 static const char* _s_internal_vm_info_string;
57
58 // CPU feature flags, can be affected by VM settings.
59 static uint64_t _features;
60
61 static const char* _features_string;
62
63 static const char* _cpu_info_string;
64
65 // Original CPU feature flags, not affected by VM settings.
210
211 protected:
212 // VM_Version statics
213 static const size_t CPU_TYPE_DESC_BUF_SIZE = 256;
214 static const size_t CPU_DETAILED_DESC_BUF_SIZE = 4096;
215
216 static int _no_of_threads;
217 static int _no_of_cores;
218 static int _no_of_sockets;
219 static bool _initialized;
220 static char _cpu_name[CPU_TYPE_DESC_BUF_SIZE];
221 static char _cpu_desc[CPU_DETAILED_DESC_BUF_SIZE];
222
223 public:
224 static int number_of_threads(void);
225 static int number_of_cores(void);
226 static int number_of_sockets(void);
227
228 static const char* cpu_name(void);
229 static const char* cpu_description(void);
230
231 static void get_cpu_features_name(void* features_buffer, stringStream& ss) { return; }
232 static void get_missing_features_name(void* features_buffer, stringStream& ss) { return; }
233
234 // Returns number of bytes required to store cpu features representation
235 static int cpu_features_size() { return 0; }
236
237 // Stores arch dependent cpu features representation in the provided buffer.
238 // Size of the buffer must be same as returned by cpu_features_size()
239 static void store_cpu_features(void* buf) { return; }
240
241 // features_to_test is an opaque object that stores arch specific representation of cpu features
242 static bool supports_features(void* features_to_test) { return false; };
243 };
244
245 #endif // SHARE_RUNTIME_ABSTRACT_VM_VERSION_HPP
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