| Message ID | 20120305030859.8515.349.stgit@jason-ThinkPad-T400 |
|---|---|
| State | New |
| Headers | show |
diff --git a/hw/rtl8139.c b/hw/rtl8139.c index 509a53e..2e3da0b 100644 --- a/hw/rtl8139.c +++ b/hw/rtl8139.c @@ -332,8 +332,10 @@ enum CSCRBits { }; enum Cfg9346Bits { - Cfg9346_Lock = 0x00, - Cfg9346_Unlock = 0xC0, + Cfg9346_Normal = 0x00, + Cfg9346_Autoload = 0x40, + Cfg9346_Programming = 0x80, + Cfg9346_ConfigWrite = 0xC0, }; typedef enum { @@ -1451,7 +1453,7 @@ static uint32_t rtl8139_IntrMitigate_read(RTL8139State *s) static int rtl8139_config_writable(RTL8139State *s) { - if (s->Cfg9346 & Cfg9346_Unlock) + if ((s->Cfg9346 & Chip9346_op_mask) == Cfg9346_ConfigWrite) { return 1; }
According to the spec, only when opmode is "Config. Register Write Enable" could driver write to CONFIG0,1,3,4 and bits 13,12,8 of BMCR. Currently, we allow modifying to those registers also when 8139 is in "Auto-load" mode and "93C46 (93C56) Programming" mode. This patch fixes this. Signed-off-by: Jason Wang <jasowang@redhat.com> --- hw/rtl8139.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)