[Qemu-devel] [PATCH 3/5] Use the correct mask to size the PCI option ROM BAR.

[Gleb Natapov <gleb@redhat.com>]

Bit 0 is the enable bit, which we not only don't want to set, but
it will stick and make us think it's an I/O port resource.

Qemu pcbios commit 6ddb9f5c742b2b82b1755d7ec2a127f6e20e3806

Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 src/pciinit.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/pciinit.c b/src/pciinit.c
index 1d0f784..29b3901 100644
--- a/src/pciinit.c
+++ b/src/pciinit.c
@@ -139,11 +139,13 @@ static void pci_bios_init_device(u16 bdf)
             int ofs;
             u32 val, size;
 
-            if (i == PCI_ROM_SLOT)
+            if (i == PCI_ROM_SLOT) {
                 ofs = PCI_ROM_ADDRESS;
-            else
+                pci_config_writel(bdf, ofs, 0xfffffffe);
+            } else {
                 ofs = PCI_BASE_ADDRESS_0 + i * 4;
-            pci_config_writel(bdf, ofs, 0xffffffff);
+                pci_config_writel(bdf, ofs, 0xffffffff);
+            }
             val = pci_config_readl(bdf, ofs);
             if (val != 0) {
                 size = (~(val & ~0xf)) + 1;
-- 
1.6.3.3