Date: Fri, 4 Apr 2003 18:02:16 -0800 (PST) From: Peter Wemm <peter@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 28114 for review Message-ID: <200304050202.h3522GZO091573@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=28114 Change 28114 by peter@peter_daintree on 2003/04/04 18:01:34 avoid ldt stuff Affected files ... .. //depot/projects/hammer/sys/x86_64/x86_64/swtch.s#8 edit Differences ... ==== //depot/projects/hammer/sys/x86_64/x86_64/swtch.s#8 (text+ko) ==== @@ -212,30 +212,6 @@ movl %edx, PCPU(CURPCB) movl %ecx, PCPU(CURTHREAD) /* into next thread */ - /* - * Determine the LDT to use and load it if is the default one and - * that is not the current one. - */ - movl TD_PROC(%ecx),%eax - cmpl $0,P_MD+MD_LDT(%eax) - jnz 1f - movl _default_ldt,%eax - cmpl PCPU(CURRENTLDT),%eax - je 2f - lldt _default_ldt - movl %eax,PCPU(CURRENTLDT) - jmp 2f -1: - /* Load the LDT when it is not the default one. */ - pushl %edx /* Preserve pointer to pcb. */ - addl $P_MD,%eax /* Pointer to mdproc is arg. */ - pushl %eax - call set_user_ldt - addl $4,%esp - popl %edx -2: - - /* This must be done after loading the user LDT. */ .globl cpu_switch_load_gs cpu_switch_load_gs: movl PCB_GS(%edx),%gs
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