[PATCH v1 08/25] xen/domctl: wrap around XEN_DOMCTL_soft_reset

[Penny Zheng]

Function domain_soft_reset() is responsible for domain soft reset, tracking
its calling chain, and the following functions could also be wrapped:
- grant_table_warn_active_grants()
- argo_soft_reset()
- arch_domain_soft_reset()
- domain_resume(), another usage is in XEN_DOMCTL_resumedomain domctl-op.

Signed-off-by: Penny Zheng <penny.zh...@amd.com>
---
 xen/arch/arm/domain.c    | 2 ++
 xen/arch/ppc/stubs.c     | 2 ++
 xen/arch/riscv/stubs.c   | 2 ++
 xen/arch/x86/domain.c    | 2 ++
 xen/common/argo.c        | 2 ++
 xen/common/domain.c      | 4 ++++
 xen/common/grant_table.c | 2 ++
 7 files changed, 16 insertions(+)

diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index 310c578909..4124d201d1 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -870,10 +870,12 @@ void arch_domain_unpause(struct domain *d)
 {
 }
 
+#ifdef CONFIG_DOMCTL
 int arch_domain_soft_reset(struct domain *d)
 {
     return -ENOSYS;
 }
+#endif /* CONFIG_DOMCTL */
 
 void arch_domain_creation_finished(struct domain *d)
 {
diff --git a/xen/arch/ppc/stubs.c b/xen/arch/ppc/stubs.c
index 4679cf9360..b2b97c6eb7 100644
--- a/xen/arch/ppc/stubs.c
+++ b/xen/arch/ppc/stubs.c
@@ -236,10 +236,12 @@ void arch_domain_unpause(struct domain *d)
     BUG_ON("unimplemented");
 }
 
+#ifdef CONFIG_DOMCTL
 int arch_domain_soft_reset(struct domain *d)
 {
     BUG_ON("unimplemented");
 }
+#endif /* CONFIG_DOMCTL */
 
 void arch_domain_creation_finished(struct domain *d)
 {
diff --git a/xen/arch/riscv/stubs.c b/xen/arch/riscv/stubs.c
index 8918cebf35..4f817bfe83 100644
--- a/xen/arch/riscv/stubs.c
+++ b/xen/arch/riscv/stubs.c
@@ -208,10 +208,12 @@ void arch_domain_unpause(struct domain *d)
     BUG_ON("unimplemented");
 }
 
+#ifdef CONFIG_DOMCTL
 int arch_domain_soft_reset(struct domain *d)
 {
     BUG_ON("unimplemented");
 }
+#endif /* CONFIG_DOMCTL */
 
 void arch_domain_creation_finished(struct domain *d)
 {
diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c
index 56c3816187..13ccaf1c79 100644
--- a/xen/arch/x86/domain.c
+++ b/xen/arch/x86/domain.c
@@ -1001,6 +1001,7 @@ void arch_domain_unpause(struct domain *d)
         viridian_time_domain_thaw(d);
 }
 
+#ifdef CONFIG_DOMCTL
 int arch_domain_soft_reset(struct domain *d)
 {
     struct page_info *page = virt_to_page(d->shared_info), *new_page;
@@ -1102,6 +1103,7 @@ int arch_domain_soft_reset(struct domain *d)
 
     return ret;
 }
+#endif /* CONFIG_DOMCTL */
 
 void arch_domain_creation_finished(struct domain *d)
 {
diff --git a/xen/common/argo.c b/xen/common/argo.c
index cbe8911a43..932f9fde9b 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -2351,6 +2351,7 @@ argo_destroy(struct domain *d)
     write_unlock(&L1_global_argo_rwlock);
 }
 
+#ifdef CONFIG_DOMCTL
 void
 argo_soft_reset(struct domain *d)
 {
@@ -2374,3 +2375,4 @@ argo_soft_reset(struct domain *d)
 
     write_unlock(&L1_global_argo_rwlock);
 }
+#endif /* CONFIG_DOMCTL */
diff --git a/xen/common/domain.c b/xen/common/domain.c
index e20fe2d40d..604217d782 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -1343,6 +1343,7 @@ int domain_shutdown(struct domain *d, u8 reason)
     return 0;
 }
 
+#ifdef CONFIG_DOMCTL
 void domain_resume(struct domain *d)
 {
     struct vcpu *v;
@@ -1369,6 +1370,7 @@ void domain_resume(struct domain *d)
 
     domain_unpause(d);
 }
+#endif /* CONFIG_DOMCTL */
 
 int vcpu_start_shutdown_deferral(struct vcpu *v)
 {
@@ -1681,6 +1683,7 @@ void domain_unpause_except_self(struct domain *d)
         domain_unpause(d);
 }
 
+#ifdef CONFIG_DOMCTL
 int domain_soft_reset(struct domain *d, bool resuming)
 {
     struct vcpu *v;
@@ -1718,6 +1721,7 @@ int domain_soft_reset(struct domain *d, bool resuming)
 
     return rc;
 }
+#endif /* CONFIG_DOMCTL */
 
 int vcpu_reset(struct vcpu *v)
 {
diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
index cf131c43a1..bfb199be7f 100644
--- a/xen/common/grant_table.c
+++ b/xen/common/grant_table.c
@@ -3962,6 +3962,7 @@ int gnttab_release_mappings(struct domain *d)
     return 0;
 }
 
+#ifdef CONFIG_DOMCTL
 void grant_table_warn_active_grants(struct domain *d)
 {
     struct grant_table *gt = d->grant_table;
@@ -4006,6 +4007,7 @@ void grant_table_warn_active_grants(struct domain *d)
 
 #undef WARN_GRANT_MAX
 }
+#endif /* CONFIG_DOMCTL */
 
 void
 grant_table_destroy(
-- 
2.34.1