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| author | simokawa <simokawa@FreeBSD.org> | 2007-06-08 04:33:25 +0000 |
|---|---|---|
| committer | simokawa <simokawa@FreeBSD.org> | 2007-06-08 04:33:25 +0000 |
| commit | 5f5cd9e4f2416485720aae4009f2bb7bd44d277a (patch) | |
| tree | 5ed58dc2f791d9767114bfb3da7bf91bff9f4bf1 /sys/dev/dcons/dcons.h | |
| parent | 07961300b2e0aa42719ed881e6c74a2d2fd7a94f (diff) | |
| download | FreeBSD-src-5f5cd9e4f2416485720aae4009f2bb7bd44d277a.zip FreeBSD-src-5f5cd9e4f2416485720aae4009f2bb7bd44d277a.tar.gz | |
Add the address of IDT in the configuration ROM. (i386/amd64 only)
A change to dconschat(8) will follow so that it can bomb
this address over FireWire to reset a wedged system.
Though this method is just a hack and far from perfection,
it should be useful if you don't want to go machine room
just to reset or to power-cycle a machine without
remote-managed power supply. And much better than doing:
# fwcontrol -m target-eui64
# dd if=/dev/zero of=/dev/fwmem0.2 bs=1m
Diffstat (limited to 'sys/dev/dcons/dcons.h')
| -rw-r--r-- | sys/dev/dcons/dcons.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/dcons/dcons.h b/sys/dev/dcons/dcons.h index daf9cb4..49ef869 100644 --- a/sys/dev/dcons/dcons.h +++ b/sys/dev/dcons/dcons.h @@ -65,6 +65,8 @@ struct dcons_buf { #define DCONS_CSR_VAL_VER 0x64636f /* "dco" */ #define DCONS_CSR_KEY_HI 0x3a #define DCONS_CSR_KEY_LO 0x3b +#define DCONS_CSR_KEY_RESET_HI 0x3c +#define DCONS_CSR_KEY_RESET_LO 0x3d #define DCONS_HEADER_SIZE sizeof(struct dcons_buf) #define DCONS_MAKE_PTR(x) htonl(((x)->gen << DCONS_GEN_SHIFT) | (x)->pos) @@ -88,6 +90,7 @@ struct dcons_ch { #define STATE0 0 #define STATE1 1 #define STATE2 2 +#define STATE3 3 #if defined(_KERNEL) || defined(_BOOT) struct dcons_softc { |
