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  1. 17 2月, 2016 5 次提交
    • D
      migration: ensure htab_save_first completes after timeout · 378bc217
      由 David Gibson 提交于 
      htab_save_first_pass could return without finishing its work due to
timeout. The patch checks if another invocation of it is necessary and
will call it in htab_save_complete if necessary.
Signed-off-by: NJianjun Duan <duanj@linux.vnet.ibm.com>
Reviewed-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
[removed overlong line]
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
      378bc217
    • D
      target-ppc: Remove hack for ppc_hash64_load_hpte*() with HV KVM · fa48b432
      由 David Gibson 提交于 
      With HV KVM, the guest's hash page table (HPT) is managed by the kernel and
not directly accessible to QEMU.  This means that spapr->htab is NULL
and normally env->external_htab would also be NULL for each cpu.

However, that would cause ppc_hash64_load_hpte*() to do the wrong thing in
the few cases where QEMU does need to load entries from the in-kernel HPT.
Specifically, seeing external_htab is NULL, they would look for an HPT
within the guest's address space instead.

To stop that we have an ugly hack in the pseries machine type code to
set external htab to (void *)1 instead.

This patch removes that hack by having ppc_hash64_load_hpte*() explicitly
check kvmppc_kern_htab instead, which makes more sense.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
      fa48b432
    • D
      pseries: Move hash page table allocation to reset time · c5f54f3e
      由 David Gibson 提交于 
      At the moment the size of the hash page table (HPT) is fixed based on the
maximum memory allowed to the guest.  As such, we allocate the table during
machine construction, and just clear it at reset.

However, we're planning to implement a PAPR extension allowing the hash
page table to be resized at runtime.  This will mean that on reset we want
to revert it to the default size.  It also means that when migrating, we
need to make sure the destination allocates an HPT of size matching the
host, since the guest could have changed it before the migration.

This patch replaces the spapr_alloc_htab() and spapr_reset_htab() functions
with a new spapr_reallocate_hpt() function.  This is called at reset and
inbound migration only, not during machine init any more.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
      c5f54f3e
    • D
      pseries: Add helper to calculate recommended hash page table size · 8dfe8e7f
      由 David Gibson 提交于 
      At present we calculate the recommended hash page table (HPT) size for a
pseries guest just once in ppc_spapr_init() before allocating the HPT.
In future patches we're going to want this calculation in other places, so
this splits it out into a helper function.  While we're at it, change the
calculation to use ctz() instead of an explicit loop.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
      8dfe8e7f
    • D
      pseries: Simplify handling of the hash page table fd · 715c5407
      由 David Gibson 提交于 
      When migrating the 'pseries' machine type with KVM, we use a special fd
to access the hash page table stored within KVM.  Usually, this fd is
opened at the beginning of migration, and kept open until the migration
is complete.

However, if there is a guest reset during the migration, the fd can become
stale and we need to re-open it.  At the moment we use an 'htab_fd_stale'
flag in sPAPRMachineState to signal this, which is checked in the migration
iterators.

But that's rather ugly.  It's simpler to just close and invalidate the
fd on reset, and lazily re-open it in migration if necessary.  This patch
implements that change.

This requires a small addition to the machine state's instance_init,
so that htab_fd is initialized to -1 (telling the migration code it
needs to open it) instead of 0, which could be a valid fd.
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Reviewed-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
      715c5407
  3. 30 1月, 2016 8 次提交
  5. 29 1月, 2016 1 次提交
    • P
      ppc: Clean up includes · 0d75590d
      由 Peter Maydell 提交于 
      Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-6-git-send-email-peter.maydell@linaro.org
      0d75590d
  7. 13 1月, 2016 3 次提交
  9. 11 1月, 2016 12 次提交
  11. 30 11月, 2015 1 次提交
  13. 26 11月, 2015 1 次提交
  15. 11 11月, 2015 1 次提交
  17. 10 11月, 2015 1 次提交
  19. 30 10月, 2015 1 次提交
  21. 29 10月, 2015 1 次提交
  23. 23 10月, 2015 4 次提交
  25. 20 10月, 2015 1 次提交