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Differential D23553 Diff 68265 head/sys/amd64/vmm/x86.c

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head/sys/amd64/vmm/x86.c

Show First 20 Lines • Show All 129 Lines • ▼ Show 20 Lines switch (func) {
case CPUID_8000_0002: case CPUID_8000_0002:
case CPUID_8000_0003: case CPUID_8000_0003:
case CPUID_8000_0004: case CPUID_8000_0004:
case CPUID_8000_0006: case CPUID_8000_0006:
cpuid_count(*eax, *ecx, regs); cpuid_count(*eax, *ecx, regs);
break; break;
case CPUID_8000_0008: case CPUID_8000_0008:
cpuid_count(*eax, *ecx, regs); cpuid_count(*eax, *ecx, regs);
if (vmm_is_amd()) { if (vmm_is_svm()) {
/* /*
* As on Intel (0000_0007:0, EDX), mask out * As on Intel (0000_0007:0, EDX), mask out
* unsupported or unsafe AMD extended features * unsupported or unsafe AMD extended features
* (8000_0008 EBX). * (8000_0008 EBX).
*/ */
regs[1] &= (AMDFEID_CLZERO | AMDFEID_IRPERF | regs[1] &= (AMDFEID_CLZERO | AMDFEID_IRPERF |
AMDFEID_XSAVEERPTR); AMDFEID_XSAVEERPTR);
▲ Show 20 Lines • Show All 82 Lines • ▼ Show 20 Lines case CPUID_8000_0007:
* TSC to keep track of time. * TSC to keep track of time.
*/ */
if (tsc_is_invariant && smp_tsc) if (tsc_is_invariant && smp_tsc)
regs[3] |= AMDPM_TSC_INVARIANT; regs[3] |= AMDPM_TSC_INVARIANT;
break; break;
case CPUID_8000_001D: case CPUID_8000_001D:
/* AMD Cache topology, like 0000_0004 for Intel. */ /* AMD Cache topology, like 0000_0004 for Intel. */
if (!vmm_is_amd()) if (!vmm_is_svm())
goto default_leaf; goto default_leaf;
/* /*
* Similar to Intel, generate a ficticious cache * Similar to Intel, generate a ficticious cache
* topology for the guest with L3 shared by the * topology for the guest with L3 shared by the
* package, and L1 and L2 local to a core. * package, and L1 and L2 local to a core.
*/ */
vm_get_topology(vm, &sockets, &cores, &threads, vm_get_topology(vm, &sockets, &cores, &threads,
Show All 25 Lines case CPUID_8000_001D:
regs[0] = (logical_cpus << 14) | (1 << 8) | regs[0] = (logical_cpus << 14) | (1 << 8) |
(level << 5) | func; (level << 5) | func;
regs[1] = (func > 0) ? (CACHE_LINE_SIZE - 1) : 0; regs[1] = (func > 0) ? (CACHE_LINE_SIZE - 1) : 0;
regs[2] = 0; regs[2] = 0;
regs[3] = 0; regs[3] = 0;
break; break;
case CPUID_8000_001E: case CPUID_8000_001E:
/* AMD Family 16h+ additional identifiers */ /*
if (!vmm_is_amd() || CPUID_TO_FAMILY(cpu_id) < 0x16) * AMD Family 16h+ and Hygon Family 18h additional
* identifiers.
*/
if (!vmm_is_svm() || CPUID_TO_FAMILY(cpu_id) < 0x16)
goto default_leaf; goto default_leaf;
vm_get_topology(vm, &sockets, &cores, &threads, vm_get_topology(vm, &sockets, &cores, &threads,
&maxcpus); &maxcpus);
regs[0] = vcpu_id; regs[0] = vcpu_id;
threads = MIN(0xFF, threads - 1); threads = MIN(0xFF, threads - 1);
regs[1] = (threads << 8) | regs[1] = (threads << 8) |
(vcpu_id >> log2(threads + 1)); (vcpu_id >> log2(threads + 1));
▲ Show 20 Lines • Show All 327 Lines • Show Last 20 Lines