1. 05 Oct, 2012 33 commits
  2. 27 Sep, 2012 1 commit
  3. 23 Sep, 2012 2 commits
    • Jan Kiszka's avatar
      KVM: x86: Fix guest debug across vcpu INIT reset · c8639010
      Jan Kiszka authored
      
      
      If we reset a vcpu on INIT, we so far overwrote dr7 as provided by
      KVM_SET_GUEST_DEBUG, and we also cleared switch_db_regs unconditionally.
      
      Fix this by saving the dr7 used for guest debugging and calculating the
      effective register value as well as switch_db_regs on any potential
      change. This will change to focus of the set_guest_debug vendor op to
      update_dp_bp_intercept.
      
      Found while trying to stop on start_secondary.
      
      Signed-off-by: Jan Kiszka's avatarJan Kiszka <jan.kiszka@siemens.com>
      Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
      c8639010
    • Alex Williamson's avatar
      KVM: Add resampling irqfds for level triggered interrupts · 7a84428a
      Alex Williamson authored
      
      
      To emulate level triggered interrupts, add a resample option to
      KVM_IRQFD.  When specified, a new resamplefd is provided that notifies
      the user when the irqchip has been resampled by the VM.  This may, for
      instance, indicate an EOI.  Also in this mode, posting of an interrupt
      through an irqfd only asserts the interrupt.  On resampling, the
      interrupt is automatically de-asserted prior to user notification.
      This enables level triggered interrupts to be posted and re-enabled
      from vfio with no userspace intervention.
      
      All resampling irqfds can make use of a single irq source ID, so we
      reserve a new one for this interface.
      
      Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
      Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
      7a84428a
  4. 20 Sep, 2012 4 commits