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| author | jhb <jhb@FreeBSD.org> | 2005-11-16 20:55:57 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2005-11-16 20:55:57 +0000 |
| commit | d1aa5c1d31557f48633a4327c926afe90aa4e956 (patch) | |
| tree | b3327a11348cb07e46b9258a8c7f00ad40d68269 /sys/amd64/amd64/apic_vector.S | |
| parent | 83cd89c7416e23a69a6c321be43a678f2567ba90 (diff) | |
| download | FreeBSD-src-d1aa5c1d31557f48633a4327c926afe90aa4e956.zip FreeBSD-src-d1aa5c1d31557f48633a4327c926afe90aa4e956.tar.gz | |
Revert previous commit to these files. There isn't a race necessitating
an xchg instruction as we only try to execute the startup function if
the CPU ID is 0 (i.e. the BSP). I missed this earlier.
Diffstat (limited to 'sys/amd64/amd64/apic_vector.S')
| -rw-r--r-- | sys/amd64/amd64/apic_vector.S | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/amd64/amd64/apic_vector.S b/sys/amd64/amd64/apic_vector.S index 2e7e445..5d7685b 100644 --- a/sys/amd64/amd64/apic_vector.S +++ b/sys/amd64/amd64/apic_vector.S @@ -297,11 +297,10 @@ IDTVEC(cpustop) test %eax, %eax jnz 2f - xorq %rax, %rax - lock - xchgq cpustop_restartfunc, %rax + movq cpustop_restartfunc, %rax testq %rax, %rax jz 2f + movq $0, cpustop_restartfunc /* One-shot */ call *%rax 2: |
