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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-14 01:08:13 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-03-30 23:34:24 +1100 |
| commit | 499dcd41378ebab2a37a0df65735748d66e75599 (patch) | |
| tree | ada2a1a7758be906d2e8e5dd799bbb74192f22de /arch/powerpc/kvm/book3s_hv.c | |
| parent | d2e60075a3d4422dc54b919f3b125d8066b839d4 (diff) | |
| download | op-kernel-dev-499dcd41378ebab2a37a0df65735748d66e75599.zip op-kernel-dev-499dcd41378ebab2a37a0df65735748d66e75599.tar.gz | |
powerpc/64s: Allocate LPPACAs individually
We no longer allocate lppacas in an array, so this patch removes the
1kB static alignment for the structure, and enforces the PAPR
alignment requirements at allocation time. We can not reduce the 1kB
allocation size however, due to existing KVM hypervisors.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 41fce69..9b48d4a 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -498,7 +498,8 @@ static unsigned long do_h_register_vpa(struct kvm_vcpu *vcpu, * use 640 bytes of the structure though, so we should accept * clients that set a size of 640. */ - if (len < 640) + BUILD_BUG_ON(sizeof(struct lppaca) != 640); + if (len < sizeof(struct lppaca)) break; vpap = &tvcpu->arch.vpa; err = 0; |
