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Re: [Qemu-devel] [PATCH v4 1/5] x86: Provide TCG_PHYS_ADDR_BITS
From: |
Eduardo Habkost |
Subject: |
Re: [Qemu-devel] [PATCH v4 1/5] x86: Provide TCG_PHYS_ADDR_BITS |
Date: |
Fri, 8 Jul 2016 15:44:02 -0300 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
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
[Qemu-devel] [PATCH v4 3/5] x86: Mask mtrr mask based on CPU physical address limits, Dr. David Alan Gilbert (git), 2016/07/08
[Qemu-devel] [PATCH v4 4/5] x86: fill high bits of mtrr mask, Dr. David Alan Gilbert (git), 2016/07/08