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Date: Thu, 11 Mar 2010 07:19:26 -0800
From: Richard Henderson <rth@twiddle.net>
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Subject: Re: [Qemu-devel] [PATCH 1/6] Move TARGET_PHYS_ADDR_SPACE_BITS to
	target-*/cpu.h.
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To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org, paul@codesourcery.com

On 03/11/2010 03:11 AM, Aurelien Jarno wrote:
>> +/* ??? MIPS64 no doubt has a larger address space.  */
>> +#define TARGET_PHYS_ADDR_SPACE_BITS 32
>> +#define TARGET_VIRT_ADDR_SPACE_BITS 32
>> +
> 
> In 32-bit mode, TARGET_VIRT_ADDR_SPACE_BITS is 32 bits, and
> TARGET_PHYS_ADDR_SPACE_BITS is 36 bits.
> 
> In 64-bit mode, TARGET_VIRT_ADDR_SPACE_BITS is 42 bits, and
> TARGET_PHYS_ADDR_SPACE_BITS is 36 bits for the CPUs emulated by QEMU,
> though the architecture specification limits those value to respectively
> 62 and 59 bits.

Thanks.  I'll queue that either for a subsequent round or a 
follow-up patch (since the current tree doesn't use anything
but the 32 above).


r~