diff options
| author | Alexander Graf <agraf@suse.de> | 2009-11-30 03:02:02 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-08 16:02:50 +1100 |
| commit | e15a113700324f7fdcee95589875daed2b98a2fe (patch) | |
| tree | f2a528fb83219a748c86d0c03efd54c6980165ab /arch/powerpc/kvm/powerpc.c | |
| parent | c0cefebc0b6ae1bc4c92672223a54e1ee96ea7f0 (diff) | |
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 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 692c3709011e..d82551efbfbf 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -144,6 +144,9 @@ int kvm_dev_ioctl_check_extension(long ext) int r; switch (ext) { + case KVM_CAP_PPC_SEGSTATE: + r = 1; + break; case KVM_CAP_COALESCED_MMIO: r = KVM_COALESCED_MMIO_PAGE_OFFSET; break; |