diff options
Diffstat (limited to 'docs/specs/pvpanic.txt')
| -rw-r--r-- | docs/specs/pvpanic.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/docs/specs/pvpanic.txt b/docs/specs/pvpanic.txt index c7bbacc..bdea68a 100644 --- a/docs/specs/pvpanic.txt +++ b/docs/specs/pvpanic.txt @@ -16,8 +16,12 @@ pvpanic exposes a single I/O port, by default 0x505. On read, the bits recognized by the device are set. Software should ignore bits it doesn't recognize. On write, the bits not recognized by the device are ignored. Software should set only bits both itself and the device recognize. -Currently, only bit 0 is recognized, setting it indicates a guest panic -has happened. + +Bit Definition +-------------- +bit 0: setting it indicates a guest panic has happened. +bit 1: named crashloaded. setting it indicates a guest panic and run + kexec to handle error by guest itself. ACPI Interface -------------- |