From: Jian Luo jian.luo4@boschrexroth.de

We should allow pci config read/write to host bridge (b.d.f = 0.0.0) in the int1a_handler() which is a valid pci device.

Signed-off-by: Jian Luo jian.luo4@boschrexroth.de Signed-off-by: Bin Meng bmeng.cn@gmail.com ---

arch/x86/lib/bios_interrupts.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/x86/lib/bios_interrupts.c b/arch/x86/lib/bios_interrupts.c index 290990a..47d9f59 100644 --- a/arch/x86/lib/bios_interrupts.c +++ b/arch/x86/lib/bios_interrupts.c @@ -161,15 +161,7 @@ int int1a_handler(void) bus = M.x86.R_EBX >> 8; reg = M.x86.R_EDI; dev = PCI_BDF(bus, devfn >> 3, devfn & 7); - if (!dev) { - debug("0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, - bus, devfn); - /* Or are we supposed to return PCIBIOS_NODEV? */ - M.x86.R_EAX &= 0xffff00ff; /* Clear AH */ - M.x86.R_EAX |= PCIBIOS_BADREG; - retval = 0; - return retval; - } + switch (func) { case 0xb108: /* Read Config Byte */ byte = x86_pci_read_config8(dev, reg);