From 3661049fec64ffd7ab008e57e396881c6a4b53a4 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 8 Jul 2013 15:46:37 -0700 Subject: hw/alpha: Don't machine check on missing pci i/o Not really correct, but we don't implement all of the random devices that the kernel looks for. This is good enough to keep us booting. Signed-off-by: Richard Henderson --- hw/alpha/pci.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'hw/alpha/pci.c') diff --git a/hw/alpha/pci.c b/hw/alpha/pci.c index 25637e0..d839dd5 100644 --- a/hw/alpha/pci.c +++ b/hw/alpha/pci.c @@ -12,6 +12,32 @@ #include "sysemu/sysemu.h" +/* Fallback for unassigned PCI I/O operations. Avoids MCHK. */ + +static uint64_t ignore_read(void *opaque, hwaddr addr, unsigned size) +{ + return 0; +} + +static void ignore_write(void *opaque, hwaddr addr, uint64_t v, unsigned size) +{ +} + +const MemoryRegionOps alpha_pci_ignore_ops = { + .read = ignore_read, + .write = ignore_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 1, + .max_access_size = 8, + }, +}; + + /* PCI config space reads/writes, to byte-word addressable memory. */ static uint64_t bw_conf1_read(void *opaque, hwaddr addr, unsigned size) -- cgit v1.1