Messages in this thread | | | Subject | Re: [PATCH v2 09/17] kvm: arm64: Make stage2 page table layout dynamic | From | Julien Grall <> | Date | Wed, 25 Apr 2018 17:35:48 +0100 |
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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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