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Re: [Qemu-devel] [PATCH] tcg/i386: Fix build for systems without working
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH] tcg/i386: Fix build for systems without working cpuid.h (MacOSX, Win32) |
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Date: |
Thu, 20 Feb 2014 13:22:27 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
On 02/20/2014 11:50 AM, Peter Maydell wrote:
> + unsigned a, b, c, d;
> + int max = __get_cpuid_max(0, 0);
> +
> + if (max >= 1) {
> + __cpuid(1, a, b, c, d);
> + }
> + return 0;
> }
You might as well check for __cpuid_count too while you're at it:
if (max >= 7)
__cpuid_count(7, 0, a, b, c, d);
Otherwise it looks good to me.
r~