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  1. 02 Jun, 2012 1 commit
  3. 01 Jun, 2012 9 commits
  5. 31 May, 2012 2 commits
  7. 30 May, 2012 4 commits
    • Bharat Bhushan's avatar
      KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt. · d35b1075
      Bharat Bhushan authored 
      
If there is pending critical or machine check interrupt then guest
would like to capture it when guest enable MSR.CE and MSR_ME respectively.
Also as mostly MSR_CE and MSR_ME are updated with rfi/rfci/rfmii
which anyway traps so removing the the paravirt optimization for MSR.CE
and MSR.ME.
Signed-off-by: default avatarBharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
      d35b1075
    • Bharat Bhushan's avatar
      KVM: PPC: booke: Added DECAR support · 21bd000a
      Bharat Bhushan authored 
      
Added the decrementer auto-reload support. DECAR is readable
on e500v2/e500mc and later cpus.
Signed-off-by: default avatarBharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
      21bd000a
    • Paul Mackerras's avatar
      KVM: PPC: Book3S HV: Make the guest hash table size configurable · 32fad281
      Paul Mackerras authored 
      
This adds a new ioctl to enable userspace to control the size of the guest
hashed page table (HPT) and to clear it out when resetting the guest.
The KVM_PPC_ALLOCATE_HTAB ioctl is a VM ioctl and takes as its parameter
a pointer to a u32 containing the desired order of the HPT (log base 2
of the size in bytes), which is updated on successful return to the
actual order of the HPT which was allocated.

There must be no vcpus running at the time of this ioctl.  To enforce
this, we now keep a count of the number of vcpus running in
kvm->arch.vcpus_running.

If the ioctl is called when a HPT has already been allocated, we don't
reallocate the HPT but just clear it out.  We first clear the
kvm->arch.rma_setup_done flag, which has two effects: (a) since we hold
the kvm->lock mutex, it will prevent any vcpus from starting to run until
we're done, and (b) it means that the first vcpu to run after we're done
will re-establish the VRMA if necessary.

If userspace doesn't call this ioctl before running the first vcpu, the
kernel will allocate a default-sized HPT at that point.  We do it then
rather than when creating the VM, as the code did previously, so that
userspace has a chance to do the ioctl if it wants.

When allocating the HPT, we can allocate either from the kernel page
allocator, or from the preallocated pool.  If userspace is asking for
a different size from the preallocated HPTs, we first try to allocate
using the kernel page allocator.  Then we try to allocate from the
preallocated pool, and then if that fails, we try allocating decreasing
sizes from the kernel page allocator, down to the minimum size allowed
(256kB).  Note that the kernel page allocator limits allocations to
1 << CONFIG_FORCE_MAX_ZONEORDER pages, which by default corresponds to
16MB (on 64-bit powerpc, at least).
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
[agraf: fix module compilation]
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
      32fad281
    • Liu Yu-B13201's avatar
      KVM: PPC: Factor out guest epapr initialization · 2e1ae9c0
      Liu Yu-B13201 authored 
      
epapr paravirtualization support is now a Kconfig
selectable option
Signed-off-by: default avatarLiu Yu <yu.liu@freescale.com>
[stuart.yoder@freescale.com: misc minor fixes, description update]
Signed-off-by: default avatarStuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
      2e1ae9c0
  9. 28 May, 2012 1 commit
  11. 24 May, 2012 1 commit
  13. 22 May, 2012 5 commits
  15. 21 May, 2012 3 commits
  17. 16 May, 2012 8 commits
  19. 15 May, 2012 1 commit
  21. 14 May, 2012 5 commits
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