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Make a Kconfig option for debugging output from realmode emulation. Trivial. 

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Myles Watson <mylesgw@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5783 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Myles Watson 2010-09-07 22:30:15 +00:00
parent c137385404
commit 6c9bc01b0e
3 changed files with 15 additions and 0 deletions
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11
src/Kconfig
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@ -543,6 +543,17 @@ config DEBUG_SMM_RELOCATION
If unsure, say N. If unsure, say N.
config REALMODE_DEBUG
bool "Enable debug messages for option ROM execution"
default n
depends on PCI_OPTION_ROM_RUN_REALMODE
help
This option enables additional x86emu related debug messages.
Note: This option will increase the time to emulate a ROM.
If unsure, say N.
config X86EMU_DEBUG config X86EMU_DEBUG
bool "Output verbose x86emu debug messages" bool "Output verbose x86emu debug messages"
default n default n

2
src/devices/oprom/x86.c
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@ -329,6 +329,7 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber,
cs = cs_ip >> 16; cs = cs_ip >> 16;
flags = stackflags; flags = stackflags;
#if CONFIG_REALMODE_DEBUG
printk(BIOS_DEBUG, "oprom: INT# 0x%x\n", intnumber); printk(BIOS_DEBUG, "oprom: INT# 0x%x\n", intnumber);
printk(BIOS_DEBUG, "oprom: eax: %08x ebx: %08x ecx: %08x edx: %08x\n", printk(BIOS_DEBUG, "oprom: eax: %08x ebx: %08x ecx: %08x edx: %08x\n",
eax, ebx, ecx, edx); eax, ebx, ecx, edx);
@ -336,6 +337,7 @@ int __attribute__((regparm(0))) interrupt_handler(u32 intnumber,
ebp, esp, edi, esi); ebp, esp, edi, esi);
printk(BIOS_DEBUG, "oprom: ip: %04x cs: %04x flags: %08x\n", printk(BIOS_DEBUG, "oprom: ip: %04x cs: %04x flags: %08x\n",
ip, cs, flags); ip, cs, flags);
#endif
// Fetch arguments from the stack and put them into // Fetch arguments from the stack and put them into
// a structure that we want to pass on to our sub interrupt // a structure that we want to pass on to our sub interrupt

2
src/devices/oprom/x86_interrupts.c
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@ -156,8 +156,10 @@ int int1a_handler(struct eregs *regs)
break; break;
} }
#if CONFIG_REALMODE_DEBUG
printk(BIOS_DEBUG, "0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n", printk(BIOS_DEBUG, "0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n",
func, bus, devfn, reg, regs->ecx); func, bus, devfn, reg, regs->ecx);
#endif
regs->eax = 0; regs->eax = 0;
retval = 0; retval = 0;
break; break;