summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorScott Wood <scottwood@freescale.com>2012-01-11 13:37:35 +0000
committerAvi Kivity <avi@redhat.com>2012-03-05 14:52:41 +0200
commit54f65795c8f6e192540756085d738e66ab0917a0 (patch)
tree3efd1dd71cbc7cf8861bdfb3aa1dc89c62a40c16 /arch
parentb3c5d3c2a49602c370de6d02fdb923bc48cd1abc (diff)
KVM: PPC: refer to paravirt docs in header file
Instead of keeping separate copies of struct kvm_vcpu_arch_shared (one in the code, one in the docs) that inevitably fail to be kept in sync (already sr[] is missing from the doc version), just point to the header file as the source of documentation on the contents of the magic page. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Avi Kivity <avi@redhat.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/kvm_para.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_para.h b/arch/powerpc/include/asm/kvm_para.h
index ece70fb36513..7b754e743003 100644
--- a/arch/powerpc/include/asm/kvm_para.h
+++ b/arch/powerpc/include/asm/kvm_para.h
@@ -22,6 +22,16 @@
#include <linux/types.h>
+/*
+ * Additions to this struct must only occur at the end, and should be
+ * accompanied by a KVM_MAGIC_FEAT flag to advertise that they are present
+ * (albeit not necessarily relevant to the current target hardware platform).
+ *
+ * Struct fields are always 32 or 64 bit aligned, depending on them being 32
+ * or 64 bit wide respectively.
+ *
+ * See Documentation/virtual/kvm/ppc-pv.txt
+ */
struct kvm_vcpu_arch_shared {
__u64 scratch1;
__u64 scratch2;