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| author | Michael Brown | 2009-06-28 21:12:16 +0200 |
|---|---|---|
| committer | Michael Brown | 2009-06-28 21:12:16 +0200 |
| commit | ee1d315ac06d6fa0dcc95cbd54ee264e838d1b6b (patch) | |
| tree | 60b212cb75dd60c0fa90cb879b1e7ba27624e954 /src/arch | |
| parent | [pxe] Create pxe_[de]activate() wrapper functions (diff) | |
| download | ipxe-ee1d315ac06d6fa0dcc95cbd54ee264e838d1b6b.tar.gz ipxe-ee1d315ac06d6fa0dcc95cbd54ee264e838d1b6b.tar.xz ipxe-ee1d315ac06d6fa0dcc95cbd54ee264e838d1b6b.zip | |
[pxe] Check for unhookable interrupts in PXENV_STOP_UNDI
PXENV_STOP_UNDI should return PXENV_STATUS_KEEP_UNDI if the UNDI
cannot be safely unloaded (e.g. due to interrupt vectors that could
not be unhooked).
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/i386/interface/pxe/pxe_preboot.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/arch/i386/interface/pxe/pxe_preboot.c b/src/arch/i386/interface/pxe/pxe_preboot.c index 21461a5a..3939c7bf 100644 --- a/src/arch/i386/interface/pxe/pxe_preboot.c +++ b/src/arch/i386/interface/pxe/pxe_preboot.c @@ -37,6 +37,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <gpxe/init.h> #include <gpxe/if_ether.h> #include <basemem_packet.h> +#include <biosint.h> #include "pxe.h" #include "pxe_call.h" @@ -316,6 +317,14 @@ PXENV_EXIT_t pxenv_stop_undi ( struct s_PXENV_STOP_UNDI *stop_undi ) { /* Prepare for unload */ shutdown ( SHUTDOWN_BOOT ); + /* Check to see if we still have any hooked interrupts */ + if ( hooked_bios_interrupts != 0 ) { + DBG ( "PXENV_STOP_UNDI failed: %d interrupts still hooked\n", + hooked_bios_interrupts ); + stop_undi->Status = PXENV_STATUS_KEEP_UNDI; + return PXENV_EXIT_FAILURE; + } + stop_undi->Status = PXENV_STATUS_SUCCESS; return PXENV_EXIT_SUCCESS; } |