| commit | 12fd28535891572be7aaf862a03019257dafa425 | |
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | |
| Thu, 7 May 2015 05:33:28 +0000 (7 15:33 +1000) | ||
| committer | Alexander Graf <agraf@suse.de> | |
| Wed, 3 Jun 2015 21:56:50 +0000 (3 23:56 +0200) | ||
| tree | 62fed9730d8aaf4098b0ee69de15d4d7c58946cd | treesnapshot (tar.gz zip) |
| parent | 421b1b27f6e9135ac8f01db219e0d8c0cefd7e71 | commitdiff |
spapr_iommu: Disable in-kernel IOMMU tables for >4GB windows
The existing KVM_CREATE_SPAPR_TCE ioctl only support 4G windows max as
the window size parameter to the kernel ioctl() is 32-bit so
there's no way of expressing a TCE window > 4GB.
We are going to add huge DMA windows support so this will create small
window and unexpectedly fail later.
This disables KVM_CREATE_SPAPR_TCE for windows bigger that 4GB.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
The existing KVM_CREATE_SPAPR_TCE ioctl only support 4G windows max as
the window size parameter to the kernel ioctl() is 32-bit so
there's no way of expressing a TCE window > 4GB.
We are going to add huge DMA windows support so this will create small
window and unexpectedly fail later.
This disables KVM_CREATE_SPAPR_TCE for windows bigger that 4GB.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
| hw/ppc/spapr_iommu.c | diffblobblamehistory |