From 7d48affec200bc1d74f42813eca0c31d548d1167 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 11 Jan 2016 16:21:08 +0000 Subject: [PATCH] [pxe] Add debug message to display real-mode segment addresses Signed-off-by: Michael Brown --- src/arch/i386/interface/pxe/pxe_call.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/arch/i386/interface/pxe/pxe_call.c b/src/arch/i386/interface/pxe/pxe_call.c index 7da4d7605..ed17a96a1 100644 --- a/src/arch/i386/interface/pxe/pxe_call.c +++ b/src/arch/i386/interface/pxe/pxe_call.c @@ -54,6 +54,12 @@ extern void pxe_int_1a ( void ); /** INT 1A hooked flag */ static int int_1a_hooked = 0; +/** Real-mode code segment size */ +extern char _text16_memsz[]; + +/** Real-mode data segment size */ +extern char _data16_memsz[]; + /** PXENV_UNDI_TRANSMIT API call profiler */ static struct profiler pxe_api_tx_profiler __profiler = { .name = "pxeapi.tx" }; @@ -331,6 +337,11 @@ int pxe_start_nbp ( void ) { int discard_b, discard_c, discard_d, discard_D; uint16_t status; + DBGC ( &pxe_netdev, "PXE NBP starting with netdev %s, code %04x:%04x, " + "data %04x:%04x\n", ( pxe_netdev ? pxe_netdev->name : "" ), + rm_cs, ( ( unsigned int ) _text16_memsz ), + rm_ds, ( ( unsigned int ) _data16_memsz ) ); + /* Allow restarting NBP via PXENV_RESTART_TFTP */ jmp = rmsetjmp ( pxe_restart_nbp ); if ( jmp )