i386/cpu: Enable CPUID 0x1f & cache model for ClearwaterForest

ClearwaterForest has CPUID 0x1f by default, so force enabling this leaf for it (ClearwaterForect-v3). And add the cache model to ClearwaterForest (v3) to better emulate its environment. The cache model is based on ClearwaterForest-AP (Advanced Performance): --- cache 0 --- cache type = data cache (1) cache level = 0x1 (1) self-initializing cache level = true fully associative cache = false maximum IDs for CPUs sharing cache = 0x0 (0) maximum IDs for cores in pkg = 0x3f (63) system coherency line size = 0x40 (64) physical line partitions = 0x1 (1) ways of associativity = 0x8 (8) number of sets = 0x40 (64) WBINVD/INVD acts on lower caches = false inclusive to lower caches = false complex cache indexing = false number of sets (s) = 64 (size synth) = 32768 (32 KB) --- cache 1 --- cache type = instruction cache (2) cache level = 0x1 (1) self-initializing cache level = true fully associative cache = false maximum IDs for CPUs sharing cache = 0x0 (0) maximum IDs for cores in pkg = 0x3f (63) system coherency line size = 0x40 (64) physical line partitions = 0x1 (1) ways of associativity = 0x8 (8) number of sets = 0x80 (128) WBINVD/INVD acts on lower caches = false inclusive to lower caches = false complex cache indexing = false number of sets (s) = 128 (size synth) = 65536 (64 KB) --- cache 2 --- cache type = unified cache (3) cache level = 0x2 (2) self-initializing cache level = true fully associative cache = false maximum IDs for CPUs sharing cache = 0x7 (7) maximum IDs for cores in pkg = 0x3f (63) system coherency line size = 0x40 (64) physical line partitions = 0x1 (1) ways of associativity = 0x10 (16) number of sets = 0x1000 (4096) WBINVD/INVD acts on lower caches = false inclusive to lower caches = false complex cache indexing = false number of sets (s) = 4096 (size synth) = 4194304 (4 MB) --- cache 3 --- cache type = unified cache (3) cache level = 0x3 (3) self-initializing cache level = true fully associative cache = false maximum IDs for CPUs sharing cache = 0x3ff (1023) maximum IDs for cores in pkg = 0x3f (63) system coherency line size = 0x40 (64) physical line partitions = 0x1 (1) ways of associativity = 0x10 (16) number of sets = 0x84000 (540672) WBINVD/INVD acts on lower caches = false inclusive to lower caches = false complex cache indexing = true number of sets (s) = 540672 (size synth) = 553648128 (528 MB) --- cache 4 --- cache type = no more caches (0) Suggested-by: Zhijun Zeng <zhijun.zeng@intel.com> Suggested-by: Chao Peng <chao.p.peng@intel.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20260310140819.1563084-6-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>