search for: pxenv_get_cached_info

...and the buffer field of the PXE call argument struct is setup to point into the bounce buffer as well): inputRegs.es = SEG(__com32.cs_bounce); inputRegs.edi.w[0] = OFFS(__com32.cs_bounce); inputRegs.eax.w[0] = 0x0009; /* call PXE stack */ inputRegs.ebx.w[0] = 0x0071; /* PXENV_GET_CACHED_INFO opcode */ __intcall(0x22, &inputRegs, &outputRegs); However, when setup this way, 'outputRegs.eax.w[0]' contains 'PXENV_EXIT_FAILURE' (and the status field of the PXE call argument struct indicates failure as well). The instructions from the previous thread on this topic...

...erboot CVS. The relevant routine, pxenv_udp_read() in Etherboot's core/pxe_export.c, hasn't changed since July last year. You can debug this by defining -DTRACE_PXE when compiling Etherboot. This will show you a call trace such as Loading 10.254.254.2:pxelinux.0 ...(PXE).........done [PXENV_GET_CACHED_INFO 2 to 00000800][PXENV_GET_CACHED_INFO 3 to 00000800][PXENV_UDP_OPEN][PXENV_UDP_WRITE 40705->10.254.254.2:69 (63)][PXENV_UDP_READ 10.254.254.2:32833->10.254.254.1:40705 (19)][PXENV_UDP_WRITE 40706->10.254.254.2:69 (51)][PXENV_UDP_READ 10.254.254.2:32833->10.254.254.1:40706 (19)][PXENV...

Question for people... Has anyone actually tried running PXELINUX on top of Etherboot? There is something in Etherboot 5.1.7 called FREEBSD_PXEEMU, which seems to be a PXE stack subset, in particular it seems to support the following calls: PXENV_GET_CACHED_INFO PXENV_UDP_OPEN PXENV_UDP_WRITE PXENV_UDP_READ PXENV_UDP_CLOSE PXENV_UNLOAD_STACK PXENV_UNDI_SHUTDOWN This happens to be pretty close to the subset used by PXELINUX, with two exceptions: PXELINUX will also invoke PXENV_STOP_UNDI (for version >= 2.00) or PXENV_UNDI_CLEANUP (for version < 2.0...

I am sending a patch that makes the debugging output of PXELINUX slightly more concise, without (intentionally) affecting its completeness at all. Additionally, I am proposing that the debugging output of PXELINUX -- specifically the messages that appear after the copyright statement, but before the menu is loaded -- only be shown in response to keyboard input (such as holding Shift or Alt, or

From: Matt Fleming <matt.fleming at intel.com> Since we can't use __intcall() for EFI, and since we can now have the ELF module code resolve all our symbols at runtime, we should delete as many references to __intcall() as possible and just access the symbols directly. The most interesting patch is the support for weak symbols. We need to be able to reference derivative-specific

...om32/lib/syslinux/pxe_get_cached.c index 4704037..a090a4c 100644 --- a/com32/lib/syslinux/pxe_get_cached.c +++ b/com32/lib/syslinux/pxe_get_cached.c @@ -43,7 +43,6 @@ int pxe_get_cached_info(int level, void **buf, size_t * len) { const int max_dhcp_packet = 2048; - com32sys_t regs; t_PXENV_GET_CACHED_INFO *gci; void *bbuf, *nbuf; int err; @@ -52,12 +51,6 @@ int pxe_get_cached_info(int level, void **buf, size_t * len) if (!gci) return -1; - memset(&regs, 0, sizeof regs); - regs.eax.w[0] = 0x0009; - regs.ebx.w[0] = PXENV_GET_CACHED_INFO; - regs.es = SEG(gci); - /*...