[PATCH] fill kvm_callback with arch specific dcr_read/dcr_write callbacks

[Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>]

Subject: [PATCH] fill kvm_callback with arch specific dcr_read/dcr_write callbacks
From: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

This Patch adds the callback assignment and handlers for powerpc_dcr_read
and ppc_dcr_write which are called from libkvm.
This is the part of the patch that changes already submitted code while the
implementation will follow as one when kvm-userspace for ppc is finished, but
appyling this now will reduce the changes to non-ppc files later in the big
patch.

Signed-off-by: Christian Ehrhardt <ehrhardt-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>

 libkvm/libkvm-powerpc.c |    8 ++++----
 libkvm/libkvm.h         |    4 ++--
 qemu/qemu-kvm.c         |    4 ++++
 qemu/qemu-kvm.h         |    5 +++++
 4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/libkvm/libkvm-powerpc.c b/libkvm/libkvm-powerpc.c
--- a/libkvm/libkvm-powerpc.c
+++ b/libkvm/libkvm-powerpc.c
@@ -31,11 +31,11 @@ int handle_dcr(struct kvm_run *run,  kvm
 	int ret = 0;
 
 	if (run->dcr.is_write)
-		ret = kvm->callbacks->powerpc_dcr_write(kvm,
-					run->dcr.dcrn,run->dcr.data);
+		ret = kvm->callbacks->powerpc_dcr_write(run->dcr.dcrn,
+							run->dcr.data);
 	else
-		ret = kvm->callbacks->powerpc_dcr_read(kvm,
-					run->dcr.dcrn, &(run->dcr.data));
+		ret = kvm->callbacks->powerpc_dcr_read(run->dcr.dcrn, 
+							&(run->dcr.data));
 
 	return ret;
 }
diff --git a/libkvm/libkvm.h b/libkvm/libkvm.h
--- a/libkvm/libkvm.h
+++ b/libkvm/libkvm.h
@@ -66,8 +66,8 @@ struct kvm_callbacks {
     int (*pre_kvm_run)(void *opaque, int vcpu);
     int (*tpr_access)(void *opaque, int vcpu, uint64_t rip, int is_write);
 #if defined(__powerpc__)
-    int (*powerpc_dcr_read)(kvm_context_t kvm, uint32_t dcrn, uint32_t *data);
-    int (*powerpc_dcr_write)(kvm_context_t kvm, uint32_t dcrn, uint32_t data);
+    int (*powerpc_dcr_read)(uint32_t dcrn, uint32_t *data);
+    int (*powerpc_dcr_write)(uint32_t dcrn, uint32_t data);
 #endif
 };
 
diff --git a/qemu/qemu-kvm.c b/qemu/qemu-kvm.c
--- a/qemu/qemu-kvm.c
+++ b/qemu/qemu-kvm.c
@@ -533,6 +533,10 @@ static struct kvm_callbacks qemu_kvm_ops
 #ifdef TARGET_I386
     .tpr_access = handle_tpr_access,
 #endif
+#ifdef TARGET_PPC
+    .powerpc_dcr_read = handle_powerpc_dcr_read,
+    .powerpc_dcr_write = handle_powerpc_dcr_write,
+#endif
 };
 
 int kvm_qemu_init()
diff --git a/qemu/qemu-kvm.h b/qemu/qemu-kvm.h
--- a/qemu/qemu-kvm.h
+++ b/qemu/qemu-kvm.h
@@ -48,6 +48,11 @@ int handle_tpr_access(void *opaque, int 
 int handle_tpr_access(void *opaque, int vcpu,
 			     uint64_t rip, int is_write);
 
+#ifdef TARGET_PPC
+int handle_powerpc_dcr_read(uint32_t dcrn, uint32_t *data);
+int handle_powerpc_dcr_write(uint32_t dcrn, uint32_t data);
+#endif
+
 #define ALIGN(x, y)  (((x)+(y)-1) & ~((y)-1))
 #define BITMAP_SIZE(m) (ALIGN(((m)>>TARGET_PAGE_BITS), HOST_LONG_BITS) / 8)
 

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