Il 09/07/2014 15:55, Alex Bennée ha scritto: > To cleanly restore an SMP VM we need to ensure that the current pause > state of each vcpu is correctly recorded. Things could get confused if > the CPU starts running after migration restore completes when it was > paused before it state was captured. > > I've done this by exposing a register (currently only 1 bit used) via > the GET/SET_ONE_REG logic to pass the state between KVM and the VM > controller (e.g. QEMU). > > Signed-off-by: Alex Bennée <alex.bennee@xxxxxxxxxx> > --- > arch/arm64/include/uapi/asm/kvm.h | 8 +++++ > arch/arm64/kvm/guest.c | 61 ++++++++++++++++++++++++++++++++++++++- > 2 files changed, 68 insertions(+), 1 deletion(-) Since it's a pseudo register anyway, would it make sense to use the existing KVM_GET/SET_MP_STATE ioctl interface? How is this represented within QEMU in TCG mode? Also, how is KVM/ARM representing (and passing to QEMU) the halted state of the VCPU? Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
