Date: Sat, 16 Apr 2005 13:38:40 GMT From: David Xu <davidxu@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 75324 for review Message-ID: <200504161338.j3GDceEQ070289@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=75324 Change 75324 by davidxu@davidxu_tiger on 2005/04/16 13:37:39 Implement cpu_set_user_tls for AMD64. Affected files ... .. //depot/projects/davidxu_thread/src/sys/amd64/amd64/vm_machdep.c#6 edit Differences ... ==== //depot/projects/davidxu_thread/src/sys/amd64/amd64/vm_machdep.c#6 (text+ko) ==== @@ -327,7 +327,7 @@ * Set the trap frame to point at the beginning of the uts * function. */ - td->td_frame->tf_rbp = 0; + td->td_frame->tf_rbp = 0; td->td_frame->tf_rsp = ((register_t)stack->ss_sp + stack->ss_size) & ~0x0f; td->td_frame->tf_rsp -= 8; @@ -341,6 +341,21 @@ td->td_frame->tf_rdi = (register_t)arg; } +void +cpu_set_user_tls(struct thread *td, void *tls_base, size_t tls_size __unused, + int tls_seg __unused) +{ + + if (td == curthread) { + critical_enter(); + td->pcb->pcb_fsbase = tls_base; + wrmsr(MSR_FSBASE, pcb->pcb_fsbase); + critical_leave(); + } else { + td->pcb->pcb_fsbase = tls_base; + } +} + #ifdef SMP static void cpu_reset_proxy()
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