刚查了一下...vmware竟然能模拟64位...它是用了仿真64位指令集...它自己也承认doing so most likely results in unacceptable performance degradation...并且不是所有32位硬件都支持的...32-Bit CPUsPlease note that Workstation and VMware Server require a 64-bit CPU to run a 64-bit guest operating system. While it is theoretically possible to emulate a 64-bit instruction set on 32-bit hardware, doing so most likely results in unacceptable performance degradation. VMware distributes a free utility that can be used to determine whether or not your CPU is suitable for running 64-bit guest operating systems. You can download this utility from the VMware Web site at http://www.vmware.com/download/ws/drivers_tools.html (scroll down to Processor Check for 64-Bit Compatibility). VMware Server includes this utility in its product distribution, so you don't need to download an additional tool.Workstation 5.5 and VMware Server 1.0 support virtual machines with 64-bit guest operating systems only on host machines that have one of the supported 64-bit processors:AMD Athlon 64, revision D or later AMD Opteron, revision E or later AMD Turion 64, revision E or later AMD Sempron, 64-bit-capable revision D or later (experimental support) Intel EM64T VT-enabled processors (experimental support) Note: In shopping for a processor that is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests, you may be unable to determine the revision numbers of a given vendor's offering of AMD Athlon 64, Opteron, Turion 64, or Sempron processors. At this time, the only reliable way to determine whether or not any of these processors is a revision supported by VMware software is by noting the manufacturing technology (CMOS). Any of the AMD Athlon 64, Opteron, Turion 64, or Sempron processors whose manufacturing technology is 90nm SOI (.09 micron SOI) is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests. Using this information, you should be able to determine — with the help of your vendor, or from the AMD Web site (http://www.amd.com) — whether a particular Athlon 64 or Opteron processor model is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests.
VMware distributes a free utility that can be used to determine whether or not your CPU is suitable for running 64-bit guest operating systems. You can download this utility from the VMware Web site at http://www.vmware.com/download/ws/drivers_tools.html (scroll down to Processor Check for 64-Bit Compatibility). VMware Server includes this utility in its product distribution, so you don't need to download an additional tool.Workstation 5.5 and VMware Server 1.0 support virtual machines with 64-bit guest operating systems only on host machines that have one of the supported 64-bit processors:AMD Athlon 64, revision D or later
AMD Opteron, revision E or later
AMD Turion 64, revision E or later
AMD Sempron, 64-bit-capable revision D or later (experimental support)
Intel EM64T VT-enabled processors (experimental support)
Note: In shopping for a processor that is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests, you may be unable to determine the revision numbers of a given vendor's offering of AMD Athlon 64, Opteron, Turion 64, or Sempron processors. At this time, the only reliable way to determine whether or not any of these processors is a revision supported by VMware software is by noting the manufacturing technology (CMOS). Any of the AMD Athlon 64, Opteron, Turion 64, or Sempron processors whose manufacturing technology is 90nm SOI (.09 micron SOI) is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests. Using this information, you should be able to determine — with the help of your vendor, or from the AMD Web site (http://www.amd.com) — whether a particular Athlon 64 or Opteron processor model is compatible with Workstation 5.5 or VMware Server 1.0 64-bit guests.