diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2016-03-01 17:54:38 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2016-03-02 09:56:50 +1100 |
| commit | fe26e52712ccab6648df17ecc029a68a69a01a85 (patch) | |
| tree | 3bfcf89f8d288367bda48fb92a0914b188bb3cf0 /arch/powerpc/include/asm/kvm_host.h | |
| parent | 01d01d69192e417447dee97891d670804bedd2c8 (diff) | |
| download | linux-fe26e52712ccab6648df17ecc029a68a69a01a85.tar.bz2 | |
KVM: PPC: Add @page_shift to kvmppc_spapr_tce_table
At the moment the kvmppc_spapr_tce_table struct can only describe
4GB windows and handle fixed size (4K) pages. Dynamic DMA windows
support more so these limits need to be extended.
This replaces window_size (in bytes, 4GB max) with page_shift (32bit)
and size (64bit, in pages).
This should cause no behavioural change as this is changing
the internal structures only - the user interface still only
allows one to create a 32-bit table with 4KiB pages at this stage.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/kvm_host.h')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index ffdbc2dc18f9..edf66f770498 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -182,8 +182,9 @@ struct kvmppc_spapr_tce_table { struct list_head list; struct kvm *kvm; u64 liobn; - u32 window_size; struct rcu_head rcu; + u32 page_shift; + u64 size; /* window size in pages */ struct page *pages[0]; }; |