[PATCH v3 1/3] KVM: arm64: Add pre_fault_memory implementation

Vladimir Murzin vladimir.murzin at arm.com
Mon Nov 24 02:38:49 PST 2025


Hi Jack,

On 11/19/25 15:49, Jack Thomson wrote:
> From: Jack Thomson <jackabt at amazon.com>
> 
> Add kvm_arch_vcpu_pre_fault_memory() for arm64. The implementation hands
> off the stage-2 faulting logic to either gmem_abort() or
> user_mem_abort().
> 
> Add an optional page_size output parameter to user_mem_abort() to
> return the VMA page size, which is needed when pre-faulting.
> 
> Update the documentation to clarify x86 specific behaviour.
> 
> Signed-off-by: Jack Thomson <jackabt at amazon.com>

It works quite well for a few cases I have, so FWIW

Tested-by: Vladimir Murzin <vladimir.murzin at arm.com>

Cheers
Vladimir



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