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Re: [Qemu-arm] [RFC PATCH v1 1/2] target-arm: Update page size for aarch


From: Peter Maydell
Subject: Re: [Qemu-arm] [RFC PATCH v1 1/2] target-arm: Update page size for aarch64
Date: Tue, 31 May 2016 10:31:02 +0100

On 31 May 2016 at 10:04, Vijay Kilari <address@hidden> wrote:
> On Wed, Apr 6, 2016 at 8:31 PM, Vijay Kilari <address@hidden> wrote:
>> On Mon, Apr 4, 2016 at 10:14 PM, Peter Maydell <address@hidden> wrote:
>>> If you want to avoid defining TARGET_PAGE_SIZE to the
>>> lowest-common-denominator 1K, then yes, you'd need to
>>> choose it at runtime. That could be painful to implement.

> The L1 page table size, L1 shift are dependent on TARGET_PAGE_BITS(page size).
> as shown in snippet code below from translate-all.c

Yes, that's why I said "painful to implement" :-)

> How about adding CONFIG_PAGE_SIZE option to configure?.

I don't want this to be a configure option, because QEMU
should just work for everybody. Otherwise we have some QEMU
binaries which silently don't implement the architecture/CPU
that they ought to.

thanks
-- PMM



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