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| author | Chris Metcalf <cmetcalf@ezchip.com> | 2015-05-04 23:26:35 +0200 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@ezchip.com> | 2015-05-11 17:22:31 +0200 |
| commit | e5701b74ccfdbbb0b4d9abcc7d0c569bf5e5375b (patch) | |
| tree | 12fd2d5402bea262d4a191504f3ad25b5263ae3a /arch/tile/kernel/hvglue.S | |
| parent | drivers/tty/hvc/hvc_tile.c: properly return -EAGAIN (diff) | |
| download | linux-e5701b74ccfdbbb0b4d9abcc7d0c569bf5e5375b.tar.xz linux-e5701b74ccfdbbb0b4d9abcc7d0c569bf5e5375b.zip | |
tile: support delivering NMIs for multicore backtrace
A new hypervisor service was added some time ago (MDE 4.2.1 or
later, or MDE 4.3 or later) that allows cores to request NMIs
to be delivered to other cores. Use this facility to deliver
a request that causes a backtrace to be generated on each core,
and hook it into the magic SysRq functionality.
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Diffstat (limited to 'arch/tile/kernel/hvglue.S')
| -rw-r--r-- | arch/tile/kernel/hvglue.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/tile/kernel/hvglue.S b/arch/tile/kernel/hvglue.S index 2ab456622391..d78ee2ad610c 100644 --- a/arch/tile/kernel/hvglue.S +++ b/arch/tile/kernel/hvglue.S @@ -71,4 +71,5 @@ gensym hv_flush_all, 0x6e0, 32 gensym hv_get_ipi_pte, 0x700, 32 gensym hv_set_pte_super_shift, 0x720, 32 gensym hv_console_set_ipi, 0x7e0, 32 -gensym hv_glue_internals, 0x800, 30720 +gensym hv_send_nmi, 0x820, 32 +gensym hv_glue_internals, 0x820, 30688 |