Author: kib
Date: Thu Feb 13 19:03:12 2020
New Revision: 357865
URL: https://svnweb.freebsd.org/changeset/base/357865

Log:
  vmm: Add Hygon Dhyana support.
  
  Submitted by: Pu Wen <pu...@hygon.cn>
  Discussed with:       grehan
  Reviewed by:  jhb (previous version)
  MFC after:    1 week
  Differential revision:        https://reviews.freebsd.org/D23553

Modified:
  head/sys/amd64/vmm/io/iommu.c
  head/sys/amd64/vmm/vmm.c
  head/sys/amd64/vmm/vmm_stat.c
  head/sys/amd64/vmm/vmm_util.c
  head/sys/amd64/vmm/vmm_util.h
  head/sys/amd64/vmm/x86.c

Modified: head/sys/amd64/vmm/io/iommu.c
==============================================================================
--- head/sys/amd64/vmm/io/iommu.c       Thu Feb 13 18:37:17 2020        
(r357864)
+++ head/sys/amd64/vmm/io/iommu.c       Thu Feb 13 19:03:12 2020        
(r357865)
@@ -184,7 +184,7 @@ iommu_init(void)
 
        if (vmm_is_intel())
                ops = &iommu_ops_intel;
-       else if (vmm_is_amd())
+       else if (vmm_is_svm())
                ops = &iommu_ops_amd;
        else
                ops = NULL;

Modified: head/sys/amd64/vmm/vmm.c
==============================================================================
--- head/sys/amd64/vmm/vmm.c    Thu Feb 13 18:37:17 2020        (r357864)
+++ head/sys/amd64/vmm/vmm.c    Thu Feb 13 19:03:12 2020        (r357865)
@@ -347,7 +347,7 @@ vmm_init(void)
        
        if (vmm_is_intel())
                ops = &vmm_ops_intel;
-       else if (vmm_is_amd())
+       else if (vmm_is_svm())
                ops = &vmm_ops_amd;
        else
                return (ENXIO);

Modified: head/sys/amd64/vmm/vmm_stat.c
==============================================================================
--- head/sys/amd64/vmm/vmm_stat.c       Thu Feb 13 18:37:17 2020        
(r357864)
+++ head/sys/amd64/vmm/vmm_stat.c       Thu Feb 13 19:03:12 2020        
(r357865)
@@ -67,7 +67,7 @@ vmm_stat_register(void *arg)
        if (vst->scope == VMM_STAT_SCOPE_INTEL && !vmm_is_intel())
                return;
 
-       if (vst->scope == VMM_STAT_SCOPE_AMD && !vmm_is_amd())
+       if (vst->scope == VMM_STAT_SCOPE_AMD && !vmm_is_svm())
                return;
 
        if (vst_num_elems + vst->nelems >= MAX_VMM_STAT_ELEMS) {

Modified: head/sys/amd64/vmm/vmm_util.c
==============================================================================
--- head/sys/amd64/vmm/vmm_util.c       Thu Feb 13 18:37:17 2020        
(r357864)
+++ head/sys/amd64/vmm/vmm_util.c       Thu Feb 13 19:03:12 2020        
(r357865)
@@ -46,9 +46,10 @@ vmm_is_intel(void)
 }
 
 bool
-vmm_is_amd(void)
+vmm_is_svm(void)
 {
-       return (strcmp(cpu_vendor, "AuthenticAMD") == 0);
+       return (strcmp(cpu_vendor, "AuthenticAMD") == 0 ||
+           strcmp(cpu_vendor, "HygonGenuine") == 0);
 }
 
 bool

Modified: head/sys/amd64/vmm/vmm_util.h
==============================================================================
--- head/sys/amd64/vmm/vmm_util.h       Thu Feb 13 18:37:17 2020        
(r357864)
+++ head/sys/amd64/vmm/vmm_util.h       Thu Feb 13 19:03:12 2020        
(r357865)
@@ -34,7 +34,7 @@
 struct trapframe;
 
 bool           vmm_is_intel(void);
-bool           vmm_is_amd(void);
+bool           vmm_is_svm(void);
 bool           vmm_supports_1G_pages(void);
 
 void           dump_trapframe(struct trapframe *tf);

Modified: head/sys/amd64/vmm/x86.c
==============================================================================
--- head/sys/amd64/vmm/x86.c    Thu Feb 13 18:37:17 2020        (r357864)
+++ head/sys/amd64/vmm/x86.c    Thu Feb 13 19:03:12 2020        (r357865)
@@ -135,7 +135,7 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id,
                        break;
                case CPUID_8000_0008:
                        cpuid_count(*eax, *ecx, regs);
-                       if (vmm_is_amd()) {
+                       if (vmm_is_svm()) {
                                /*
                                 * As on Intel (0000_0007:0, EDX), mask out
                                 * unsupported or unsafe AMD extended features
@@ -234,7 +234,7 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id,
 
                case CPUID_8000_001D:
                        /* AMD Cache topology, like 0000_0004 for Intel. */
-                       if (!vmm_is_amd())
+                       if (!vmm_is_svm())
                                goto default_leaf;
 
                        /*
@@ -276,8 +276,11 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id,
                        break;
 
                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;
 
                        vm_get_topology(vm, &sockets, &cores, &threads,
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