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| author | Robert Morris <[email protected]> | 2019-06-05 11:42:03 -0400 |
|---|---|---|
| committer | Robert Morris <[email protected]> | 2019-06-05 11:42:03 -0400 |
| commit | f1a727b971a59bab6025b4c4111342c27356ca40 (patch) | |
| tree | d22d52c613bfc003e6fb75b5d137aeff9d954201 /trampoline.S | |
| parent | ec3d3a1fceee437c640f9c5c05fc517edfb1899e (diff) | |
| download | xv6-labs-f1a727b971a59bab6025b4c4111342c27356ca40.tar.gz xv6-labs-f1a727b971a59bab6025b4c4111342c27356ca40.tar.bz2 xv6-labs-f1a727b971a59bab6025b4c4111342c27356ca40.zip | |
start at support for multiple CPUs
Diffstat (limited to 'trampoline.S')
| -rw-r--r-- | trampoline.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/trampoline.S b/trampoline.S index 5886942..dd4eb02 100644 --- a/trampoline.S +++ b/trampoline.S @@ -120,6 +120,9 @@ trampin: # restore kernel stack pointer from p->tf->kernel_sp ld sp, 8(a0) + # make tp hold the current hartid, from p->tf->hartid + ld tp, 32(a0) + # remember the address of usertrap(), p->tf->kernel_trap ld t0, 16(a0) |