Date: Wed, 31 Jan 2007 01:32:16 GMT From: Jung-uk Kim <jkim@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 113743 for review Message-ID: <200701310132.l0V1WGmd020067@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=113743 Change 113743 by jkim@jkim_hammer on 2007/01/31 01:31:54 Don't restore gsbase. We don't need it any more. Affected files ... .. //depot/projects/linuxolator/src/sys/amd64/amd64/cpu_switch.S#4 edit Differences ... ==== //depot/projects/linuxolator/src/sys/amd64/amd64/cpu_switch.S#4 (text+ko) ==== @@ -188,7 +188,7 @@ /* Restore userland 32 bit GS descriptor for Linuxulator */ movq PCB_GS32P(%r8),%rax testq %rax,%rax - jz 3f /* no, skip over */ + jz 2f /* no, skip over */ movq PCB_GS32SD(%r8),%rcx movq %rcx,(%rax) @@ -201,14 +201,13 @@ movl PCB_FSBASE+4(%r8),%edx wrmsr -2: /* Restore userland %gs */ movl $MSR_KGSBASE,%ecx movl PCB_GSBASE(%r8),%eax movl PCB_GSBASE+4(%r8),%edx wrmsr -3: +2: /* Update the TSS_RSP0 pointer for the next interrupt */ movq PCPU(TSSP), %rax addq $COMMON_TSS_RSP0, %rax
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