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Date:      Thu, 13 Feb 2020 19:03:13 +0000 (UTC)
From:      Konstantin Belousov <kib@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r357865 - in head/sys/amd64/vmm: . io
Message-ID:  <202002131903.01DJ3DDN044487@repo.freebsd.org>
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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 <puwen@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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