[PATCH v2] KVM: PPC: Add devname:kvm aliases for modules

[Alexander Graf <agraf@xxxxxxx>]

Systems that support automatic loading of kernel modules through
device aliases should try and automatically load kvm when /dev/kvm
gets opened.

Add code to support that magic for all PPC kvm targets, even the
ones that don't support modules yet.

Signed-off-by: Alexander Graf <agraf@xxxxxxx>

---

v1 -> v2:

  - move includes to top of file
  - add <linux/module.h> includes

diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index 93221e8..9cb4b0a 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -21,6 +21,8 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
@@ -231,3 +233,5 @@ static void __exit kvmppc_44x_exit(void)
 
 module_init(kvmppc_44x_init);
 module_exit(kvmppc_44x_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 8912608..48cf91b 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -18,6 +18,8 @@
 #include <linux/err.h>
 #include <linux/export.h>
 #include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
@@ -879,3 +881,9 @@ static void kvmppc_book3s_exit(void)
 
 module_init(kvmppc_book3s_init);
 module_exit(kvmppc_book3s_exit);
+
+/* On 32bit this is our one and only kernel module */
+#ifdef CONFIG_KVM_BOOK3S_32
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
+#endif
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 93203bb..088a6e5 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -31,6 +31,7 @@
 #include <linux/spinlock.h>
 #include <linux/page-flags.h>
 #include <linux/srcu.h>
+#include <linux/miscdevice.h>
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
@@ -2216,3 +2217,5 @@ static void kvmppc_book3s_exit_hv(void)
 module_init(kvmppc_book3s_init_hv);
 module_exit(kvmppc_book3s_exit_hv);
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index fe14ca3..21bf7c5 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -41,6 +41,7 @@
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 #include <linux/module.h>
+#include <linux/miscdevice.h>
 
 #include "book3s.h"
 
@@ -1584,4 +1585,6 @@ module_init(kvmppc_book3s_init_pr);
 module_exit(kvmppc_book3s_exit_pr);
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
 #endif
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index 497b142..2e02ed8 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -16,6 +16,8 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
@@ -573,3 +575,5 @@ static void __exit kvmppc_e500_exit(void)
 
 module_init(kvmppc_e500_init);
 module_exit(kvmppc_e500_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index 4132cd2..17e4562 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -16,6 +16,8 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
 
 #include <asm/reg.h>
 #include <asm/cputable.h>
@@ -391,3 +393,5 @@ static void __exit kvmppc_e500mc_exit(void)
 
 module_init(kvmppc_e500mc_init);
 module_exit(kvmppc_e500mc_exit);
+MODULE_ALIAS_MISCDEV(KVM_MINOR);
+MODULE_ALIAS("devname:kvm");
--
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