Re: [PATCH v3 14/19] x86/entry/64: Create a percpu SYSCALL entry trampoline

On Fri, Nov 24, 2017 at 3:39 AM, David Laight wrote: > From: Andy Lutomirski >> Sent: 24 November 2017 04:33 > ... >> + /* >> + * x86 lacks a near absolute jump, and we can't jump to the real >> + * entry text with a relative jump, so we fake it using retq. >> + */ >> + push

RE: [PATCH v3 14/19] x86/entry/64: Create a percpu SYSCALL entry trampoline

From: Andy Lutomirski > Sent: 24 November 2017 04:33 ... > + /* > + * x86 lacks a near absolute jump, and we can't jump to the real > + * entry text with a relative jump, so we fake it using retq. > + */ > + pushq $entry_SYSCALL_64_after_hwframe > + retq Don't some of