KVM: x86/mmu: Make __GFP_ZERO a property of the memory cache

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Add a gfp_zero flag to 'struct kvm_mmu_memory_cache' and use it to
control __GFP_ZERO instead of hardcoding a call to kmem_cache_zalloc().
A future patch needs such a flag for the __get_free_page() path, as
gfn arrays do not need/want the allocator to zero the memory.  Convert
the kmem_cache paths to __GFP_ZERO now so as to avoid a weird and
inconsistent API in the future.

No functional change intended.

Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200703023545.8771-11-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-07-02 19:35:34 -07:00 • committed by Paolo Bonzini

parent 171a90d70f

commit 5f6078f9f1

2 changed files with 7 additions and 1 deletions

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arch/x86/include/asm/kvm_host.h

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7

arch/x86/kvm/mmu/mmu.c

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