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Open Source and information security mailing list archives
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Date: Fri, 27 Mar 2015 13:17:22 +0100 From: Ingo Molnar <mingo@...nel.org> To: Denys Vlasenko <dvlasenk@...hat.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Steven Rostedt <rostedt@...dmis.org>, Borislav Petkov <bp@...en8.de>, "H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...capital.net>, Oleg Nesterov <oleg@...hat.com>, Frederic Weisbecker <fweisbec@...il.com>, Alexei Starovoitov <ast@...mgrid.com>, Will Drewry <wad@...omium.org>, Kees Cook <keescook@...omium.org>, x86@...nel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 4/4] x86/asm/entry/32: Use PUSH instructions to build pt_regs on stack * Denys Vlasenko <dvlasenk@...hat.com> wrote: > On 03/27/2015 12:32 PM, Ingo Molnar wrote: > > > > * Denys Vlasenko <dvlasenk@...hat.com> wrote: > > > >> This mimics the recent similar 64-bit change. > >> Saves ~110 bytes of code. > > > > Would be nice to know whether you tested all the affected system entry > > variants, on both AMD and Intel CPUs? > > Yes, I did. I also looked at the diff of entry_64.o disassembly, to have > a different view of the changes. That kind of information needs to be in the changelog. > I know how fragile this stuff is. yeah ... Thanks, Ingo -- 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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