linux-kernel - Re: [kvmtool PATCH 20/17] kvmtool: arm64: Switch memory layout

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Message-ID: <f04a9ac7-a555-47e1-0bef-f5ff28b287f8@arm.com>
Date:   Tue, 3 Apr 2018 13:34:34 +0100
From:   Jean-Philippe Brucker <jean-philippe.brucker@....com>
To:     Suzuki K Poulose <suzuki.poulose@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "cdall@...nel.org" <cdall@...nel.org>,
        Marc Zyngier <Marc.Zyngier@....com>,
        Punit Agrawal <Punit.Agrawal@....com>,
        Will Deacon <Will.Deacon@....com>,
        Catalin Marinas <Catalin.Marinas@....com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>,
        "ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
        "peter.maydell@...aro.org" <peter.maydell@...aro.org>,
        Kristina Martsenko <Kristina.Martsenko@....com>,
        Mark Rutland <Mark.Rutland@....com>
Subject: Re: [kvmtool PATCH 20/17] kvmtool: arm64: Switch memory layout

Hi Suzuki,

On 27/03/18 14:15, Suzuki K Poulose wrote:
> If the guest wants to use a larger physical address space place
> the RAM at upper half of the address space. Otherwise, it uses the
> default layout.
> 
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
> ---
>  arm/aarch32/include/kvm/kvm-arch.h |  1 +
>  arm/aarch64/include/kvm/kvm-arch.h | 15 ++++++++++++---
>  arm/include/arm-common/kvm-arch.h  | 11 ++++++-----
>  arm/kvm.c                          |  2 +-
>  4 files changed, 20 insertions(+), 9 deletions(-)
> 
> diff --git a/arm/aarch32/include/kvm/kvm-arch.h b/arm/aarch32/include/kvm/kvm-arch.h
> index cd31e72..2d62aab 100644
> --- a/arm/aarch32/include/kvm/kvm-arch.h
> +++ b/arm/aarch32/include/kvm/kvm-arch.h
> @@ -4,6 +4,7 @@
>  #define ARM_KERN_OFFSET(...)	0x8000
>  
>  #define ARM_MAX_MEMORY(...)	ARM_LOMAP_MAX_MEMORY

I guess this should now be ARM32_MAX_MEMORY?

Thanks,
Jean