linux-kernel - Re: [PATCH v2 3/6] KVM: MMU: make return value of mmio page fault handler more readable

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Date:	Thu, 25 Apr 2013 17:24:09 +0800
From:	Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com>
To:	Gleb Natapov <gleb@...hat.com>
CC:	mtosatti@...hat.com, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Subject: Re: [PATCH v2 3/6] KVM: MMU: make return value of mmio page fault
 handler more readable

On 04/24/2013 09:34 PM, Gleb Natapov wrote:

>> diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
>> index 2adcbc2..6b4ba1e 100644
>> --- a/arch/x86/kvm/mmu.h
>> +++ b/arch/x86/kvm/mmu.h
>> @@ -52,6 +52,20 @@
>>  
>>  int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4]);
>>  void kvm_mmu_set_mmio_spte_mask(u64 mmio_mask);
>> +
>> +/*
>> + * Return values of handle_mmio_page_fault_common:
>> + * RET_MMIO_PF_EMU: it is a real mmio page fault, emulate the instruction
>> + *		    directly.
>> + * RET_MMIO_PF_RETRY: let CPU fault again on the address.
>> + * RET_MMIO_PF_BUG: bug is detected.
>> + */
>> +enum {
>> +	RET_MMIO_PF_EMU = 1,
> Make it RET_MMIO_PF_EMULATE please.

Good to me, will do.

Thanks!

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