Solaris 9 Sun Hardware Platform Guide

System Kernel Support

All SPARC systems can run 32-bit applications. Systems using newer SPARC processors (that is, UltraSPARC-based systems) can boot and run a full 64-bit kernel, which allows those systems to run 32-bit and 64-bit applications concurrently.

Systems running a 64-bit kernel require 64-bit versions of drivers and other software modules that load directly into the kernel. A small number of applications may be dependent on such components and thus would require versions of these components specific to a 32-bit or 64-bit kernel. Also, 32-bit applications cannot link to 64-bit libraries and vice versa. (The Solaris 8 operating environment includes both 32-bit and 64-bit versions of system libraries.)

The following table lists which systems can run 64-bit as well as 32-bit applications, and which systems can boot a 32-bit kernel, a 64-bit kernel, or both.

Table 1-5 System 32-bit and 64-bit Kernel Support


	Kernel		Applications		Drivers
System Type	32-bit	64-bit	32-bit	64-bit	32-bit	64-bit
SPARCclassic	Yes	No	Yes	No	Yes	No
SPARCstation LX	Yes	No	Yes	No	Yes	No
SPARCstation 4,5, 10, 10SX, 20	Yes	No	Yes	No	Yes	No
SPARCengine CP1200	Yes	No	Yes	No	Yes	No
SPARCserver 1000, 1000E	Yes	No	Yes	No	Yes	No
SPARCcenter 2000, 2000E	Yes	No	Yes	No	Yes	No
Ultra 1, 2, 5, 10, 30, 60, 80	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Ultra 450	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Sun Enterprise 1, 2, 150, 220R, 250, 420R, 450	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Sun Enterprise 3000, 3500, 4000, 4500, 5000, 5500, 6000, 6500	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Sun Enterprise 10000	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Netra t1 100/105	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Netra t 1120/1125	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Netra t 1400/1405	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
SPARCengine CP1400	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
SPARCengine CP1500	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Ultra AX, AXi, AXdp, AXmp, AXmp+, AXe	Yes	Yes	Yes	Yes[1]	Yes[2]	Yes[1]
Sun Blade 100, 1000	No	Yes	Yes	Yes	No	Yes
Sun Fire 280R, 880	No	Yes	Yes	Yes	No	Yes
Sun Fire 3800, 4800, 4810, 6800	No	Yes	Yes	Yes	No	Yes
Netra T1 AC200	No	Yes	Yes	Yes	No	Yes
Netra T1 DC200	No	Yes	Yes	Yes	No	Yes
Netra X1	No	Yes	Yes	Yes	No	Yes
[1] Supported only when running 64-bit kernel
[2] Supported only when running 32-bit kernel