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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-07-02 11:15:18 +0530 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-07-08 16:21:13 +0200 |
| commit | 990978e99359e1f3a843563b9f96f9dc7bb7c05a (patch) | |
| tree | 6f71c3c44f428b3a325097f28008dd8576dc50f0 /arch/powerpc/kvm/book3s_64_mmu_hv.c | |
| parent | 6c45b810989d1c04194499d666f695d3f811965f (diff) | |
| download | op-kernel-dev-990978e99359e1f3a843563b9f96f9dc7bb7c05a.zip op-kernel-dev-990978e99359e1f3a843563b9f96f9dc7bb7c05a.tar.gz | |
powerpc/kvm: Use 256K chunk to track both RMA and hash page table allocation.
Both RMA and hash page table request will be a multiple of 256K. We can use
a chunk size of 256K to track the free/used 256K chunk in the bitmap. This
should help to reduce the bitmap size.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 354f4bb..7eb5dda 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -37,6 +37,8 @@ #include <asm/ppc-opcode.h> #include <asm/cputable.h> +#include "book3s_hv_cma.h" + /* POWER7 has 10-bit LPIDs, PPC970 has 6-bit LPIDs */ #define MAX_LPID_970 63 @@ -71,6 +73,7 @@ long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp) /* Next try to allocate from the preallocated pool */ if (!hpt) { + VM_BUG_ON(order < KVM_CMA_CHUNK_ORDER); page = kvm_alloc_hpt(1 << (order - PAGE_SHIFT)); if (page) { hpt = (unsigned long)pfn_to_kaddr(page_to_pfn(page)); |
