diff options
| author | Alexander Graf <agraf@suse.de> | 2010-02-19 11:00:46 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-04-25 12:37:58 +0300 |
| commit | 20a340abd3f7a1ca4d11502ec71d52b4f414326e (patch) | |
| tree | c32e9bfb9645ac5a7e6a8366bbcfdb2017c63569 /arch/powerpc/kvm | |
| parent | c10207fe86b1761c3ad135eb922fdb41bbde3025 (diff) | |
| download | linux-20a340abd3f7a1ca4d11502ec71d52b4f414326e.tar.bz2 | |
KVM: PPC: Enable use of secondary htab bucket
We had code to make use of the secondary htab buckets, but kept that
disabled because it was unstable when I put it in.
I checked again if that's still the case and apparently it was only
exposing some instability that was there anyways before. I haven't
seen any badness related to usage of secondary htab entries so far.
This should speed up guest memory allocations by quite a bit, because
we now have more space to put PTEs in.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_host.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index f2899b297ffd..25bd4ede722c 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -257,16 +257,9 @@ map_again: if (ret < 0) { /* If we couldn't map a primary PTE, try a secondary */ -#ifdef USE_SECONDARY hash = ~hash; + vflags ^= HPTE_V_SECONDARY; attempt++; - if (attempt % 2) - vflags = HPTE_V_SECONDARY; - else - vflags = 0; -#else - attempt = 2; -#endif goto map_again; } else { int hpte_id = kvmppc_mmu_hpte_cache_next(vcpu); |