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authorAlexander Graf <agraf@suse.de>2009-11-30 03:02:02 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-12-08 16:02:50 +1100
commite15a113700324f7fdcee95589875daed2b98a2fe (patch)
treef2a528fb83219a748c86d0c03efd54c6980165ab /include/linux/kvm.h
parentc0cefebc0b6ae1bc4c92672223a54e1ee96ea7f0 (diff)
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powerpc/kvm: Sync guest visible MMU state
Currently userspace has no chance to find out which virtual address space we're in and resolve addresses. While that is a big problem for migration, it's also unpleasent when debugging, as gdb and the monitor don't work on virtual addresses. This patch exports enough of the MMU segment state to userspace to make debugging work and thus also includes the groundwork for migration. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include/linux/kvm.h')
-rw-r--r--include/linux/kvm.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index f8f8900fc5e..caf6173bd2e 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -436,6 +436,9 @@ struct kvm_ioeventfd {
#endif
#define KVM_CAP_IOEVENTFD 36
#define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
+/* KVM upstream has more features, but we synched this number.
+ Linux, please remove this comment on rebase. */
+#define KVM_CAP_PPC_SEGSTATE 43
#ifdef KVM_CAP_IRQ_ROUTING