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KVM: arm64: Use kvzalloc() for kvm struct allocation

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Physically-allocated KVM structs aren't necessary when in VHE mode as
there's no need to share with the hyp's address space. Of course, there
can still be a performance benefit from physical allocations.

Use kvzalloc() for opportunistic physical allocations.

Acked-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://msgid.link/20251119093822.2513142-3-oupton@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Oliver Upton 2025-11-19 01:38:22 -08:00
parent 297877069b
commit cb17d79ff5
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/kvm/arm.c
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@ -440,7 +440,7 @@ struct kvm *kvm_arch_alloc_vm(void)
if (!has_vhe())
return kzalloc(sz, GFP_KERNEL_ACCOUNT);
return __vmalloc(sz, GFP_KERNEL_ACCOUNT | __GFP_ZERO);
return kvzalloc(sz, GFP_KERNEL_ACCOUNT);
}
int kvm_arch_vcpu_precreate(struct kvm *kvm, unsigned int id)