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Message-ID: <4E418388.9050600@zytor.com> Date: Tue, 09 Aug 2011 13:59:20 -0500 From: "H. Peter Anvin" <hpa@...or.com> To: Andy Lutomirski <luto@....edu> CC: x86@...nel.org, Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, lueckintel@...oo.com, kimwooyoung@...il.com, Ingo Molnar <mingo@...e.hu>, Borislav Petkov <bp@...en8.de>, Suresh Siddha <suresh.b.siddha@...el.com> Subject: Re: [PATCH 1/4] x86-64: Allow emulated vsyscalls from user addresses 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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