Re: [PATCH 4/5] KVM: MMU: store generation-number into mmio spte
From: Paolo Bonzini
Date: Mon Mar 18 2013 - 07:19:24 EST
Il 15/03/2013 16:29, Xiao Guangrong ha scritto:
> + * spte bits of bit 3 ~ bit 11 are used as low 9 bits of
> + * generation, the bits of bits 52 ~ bit 61 are used as
> + * high 12 bits of generation.
> + */
High 10 bits.
How often does the generation number change? Especially with Takuya's
patches, using just 10 bits for the generation might be enough and
simplifies the code.
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