Re: [Qemu-devel] [PATCH v4 1/5] x86: Provide TCG_PHYS_ADDR_BITS

[Eduardo Habkost]

On Fri, Jul 08, 2016 at 04:01:35PM +0100, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
> 
> Provide a constant for the number of address bits supported under TCG.
> 
> Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> Suggested-by: Eduardo Habkost <address@hidden>

Reviewed-by: Eduardo Habkost <address@hidden>

> ---
>  target-i386/cpu.h | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/target-i386/cpu.h b/target-i386/cpu.h
> index 474b0b9..b3162b7 100644
> --- a/target-i386/cpu.h
> +++ b/target-i386/cpu.h
> @@ -1403,11 +1403,13 @@ uint64_t cpu_get_tsc(CPUX86State *env);
>  /* XXX: This value should match the one returned by CPUID
>   * and in exec.c */
>  # if defined(TARGET_X86_64)
> -# define PHYS_ADDR_MASK 0xffffffffffLL
> +# define TCG_PHYS_ADDR_BITS 40
>  # else
> -# define PHYS_ADDR_MASK 0xfffffffffLL
> +# define TCG_PHYS_ADDR_BITS 36
>  # endif
>  
> +#define PHYS_ADDR_MASK MAKE_64BIT_MASK(0, TCG_PHYS_ADDR_BITS)
> +
>  #define cpu_init(cpu_model) CPU(cpu_x86_init(cpu_model))
>  
>  #define cpu_signal_handler cpu_x86_signal_handler
> -- 
> 2.7.4
> 

-- 
Eduardo