Re: [PATCH 1/4] x86-64: Allow emulated vsyscalls from user addresses

[H. Peter Anvin]

On 08/09/2011 09:27 AM, Andy Lutomirski wrote:
>   *
>   *  Vectors   0 ...  31 : system traps and exceptions - hardcoded events
> - *  Vectors  32 ... 127 : device interrupts
> - *  Vector  128         : legacy int80 syscall interface
> - *  Vector  204         : legacy x86_64 vsyscall emulation
> - *  Vectors 129 ... INVALIDATE_TLB_VECTOR_START-1 except 204 : device interrupts
> + *  Vectors  32 ... INVALIDATE_TLB_VECTOR_START-1 : device interrupts, except:
> + *   Vectors 64 ... 66  : legacy x86_64 vsyscall emulation
> + *   Vector  128        : legacy int80 syscall interface
>   *  Vectors INVALIDATE_TLB_VECTOR_START ... 255 : special interrupts
>   *

Hi Andy,

Was there a reason to not use the vectors in the 0x2X range?

	-hpa

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