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SubjectRe: [PATCH v2 09/17] kvm: arm64: Make stage2 page table layout dynamic
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Hi Suzuki,

On 27/03/18 14:15, Suzuki K Poulose wrote:
> So far we had a static stage2 page table handling code, based on a
> fixed IPA of 40bits. As we prepare for a configurable IPA size per
> VM, make the our stage2 page table code dynamic to do the right thing
> for a given VM.
>
> Support for the IPA size configuration needs other changes in the way
> we configure the EL2 registers (VTTBR and VTCR). So, the IPA is still
> fixed to 40bits. The patch also moves the kvm_page_empty() in asm/kvm_mmu.h
> to the top, before including the asm/stage2_pgtable.h to avoid a forward
> declaration.
>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Christoffer Dall <cdall@kernel.org>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
> ---
> arch/arm64/include/asm/kvm_mmu.h | 16 +-
> arch/arm64/include/asm/stage2_pgtable-nopmd.h | 42 ------
> arch/arm64/include/asm/stage2_pgtable-nopud.h | 39 -----
> arch/arm64/include/asm/stage2_pgtable.h | 203 +++++++++++++++++---------
> 4 files changed, 145 insertions(+), 155 deletions(-)
> delete mode 100644 arch/arm64/include/asm/stage2_pgtable-nopmd.h
> delete mode 100644 arch/arm64/include/asm/stage2_pgtable-nopud.h
>
> diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
> index 594c4e6..bc133ce 100644
> --- a/arch/arm64/include/asm/kvm_mmu.h
> +++ b/arch/arm64/include/asm/kvm_mmu.h
> @@ -18,9 +18,10 @@
> #ifndef __ARM64_KVM_MMU_H__
> #define __ARM64_KVM_MMU_H__
>
> +#include <asm/cpufeature.h>
> #include <asm/page.h>
> #include <asm/memory.h>
> -#include <asm/cpufeature.h>

OOI, why was the include of cpufeature.h moved earlier?

Cheers,

--
Julien Grall

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