From: Corey Minyard <cminy...@mvista.com>
PCI device I/O must be >= 8 bytes in length or they don't work.
Allow the size to be passed in, the default size of 2 or 3
won't work.
Signed-off-by: Corey Minyard <cminy...@mvista.com>
---
hw/ipmi/ipmi_bt.c | 19 +++++++++++++++----
hw/ipmi/ipmi_kcs.c | 23 +++++++++++++++++++----
hw/ipmi/isa_ipmi_bt.c | 2 +-
hw/ipmi/isa_ipmi_kcs.c | 2 +-
include/hw/ipmi/ipmi.h | 7 ++++++-
include/hw/ipmi/ipmi_bt.h | 1 +
include/hw/ipmi/ipmi_kcs.h | 1 +
7 files changed, 44 insertions(+), 11 deletions(-)
diff --git a/hw/ipmi/ipmi_bt.c b/hw/ipmi/ipmi_bt.c
index e07e10a..130ef24 100644
--- a/hw/ipmi/ipmi_bt.c
+++ b/hw/ipmi/ipmi_bt.c
@@ -187,7 +187,7 @@ static uint64_t ipmi_bt_ioport_read(void *opaque, hwaddr
addr, unsigned size)
IPMIBT *ib = iic->get_backend_data(ii);
uint32_t ret = 0xff;
- switch (addr & 3) {
+ switch (addr & ib->size_mask) {
case 0:
ret = ib->control_reg;
break;
@@ -206,6 +206,9 @@ static uint64_t ipmi_bt_ioport_read(void *opaque, hwaddr
addr, unsigned size)
case 2:
ret = ib->mask_reg;
break;
+ default:
+ ret = 0xff;
+ break;
}
return ret;
}
@@ -228,7 +231,7 @@ static void ipmi_bt_ioport_write(void *opaque, hwaddr addr,
uint64_t val,
IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
IPMIBT *ib = iic->get_backend_data(ii);
- switch (addr & 3) {
+ switch (addr & ib->size_mask) {
case 0:
if (IPMI_BT_GET_CLR_WR(val)) {
ib->inlen = 0;
@@ -283,6 +286,9 @@ static void ipmi_bt_ioport_write(void *opaque, hwaddr addr,
uint64_t val,
ipmi_bt_lower_irq(ib);
}
break;
+ default:
+ /* Ignore. */
+ break;
}
}
@@ -344,14 +350,19 @@ static void ipmi_bt_set_irq_enable(IPMIInterface *ii, int
val)
ib->irqs_enabled = val;
}
-static void ipmi_bt_init(IPMIInterface *ii, Error **errp)
+static void ipmi_bt_init(IPMIInterface *ii, unsigned int min_size, Error
**errp)
{
IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
IPMIBT *ib = iic->get_backend_data(ii);
+ if (min_size == 0) {
+ min_size = 4;
+ }
+ ib->size_mask = min_size - 1;
ib->io_length = 3;
- memory_region_init_io(&ib->io, NULL, &ipmi_bt_io_ops, ii, "ipmi-bt", 3);
+ memory_region_init_io(&ib->io, NULL, &ipmi_bt_io_ops, ii, "ipmi-bt",
+ min_size);
}
const VMStateDescription vmstate_IPMIBT = {
diff --git a/hw/ipmi/ipmi_kcs.c b/hw/ipmi/ipmi_kcs.c
index cb22dee..ec6dc39 100644
--- a/hw/ipmi/ipmi_kcs.c
+++ b/hw/ipmi/ipmi_kcs.c
@@ -230,7 +230,7 @@ static uint64_t ipmi_kcs_ioport_read(void *opaque, hwaddr
addr, unsigned size)
IPMIKCS *ik = iic->get_backend_data(ii);
uint32_t ret;
- switch (addr & 1) {
+ switch (addr & ik->size_mask) {
case 0:
ret = ik->data_out_reg;
IPMI_KCS_SET_OBF(ik->status_reg, 0);
@@ -241,6 +241,7 @@ static uint64_t ipmi_kcs_ioport_read(void *opaque, hwaddr
addr, unsigned size)
}
}
break;
+
case 1:
ret = ik->status_reg;
if (ik->atn_irq_set) {
@@ -250,6 +251,9 @@ static uint64_t ipmi_kcs_ioport_read(void *opaque, hwaddr
addr, unsigned size)
}
}
break;
+
+ default:
+ ret = 0xff;
}
return ret;
}
@@ -265,7 +269,7 @@ static void ipmi_kcs_ioport_write(void *opaque, hwaddr
addr, uint64_t val,
return;
}
- switch (addr & 1) {
+ switch (addr & ik->size_mask) {
case 0:
ik->data_in_reg = val;
break;
@@ -273,6 +277,10 @@ static void ipmi_kcs_ioport_write(void *opaque, hwaddr
addr, uint64_t val,
case 1:
ik->cmd_reg = val;
break;
+
+ default:
+ /* Ignore. */
+ break;
}
IPMI_KCS_SET_IBF(ik->status_reg, 1);
ipmi_kcs_signal(ik, ii);
@@ -319,13 +327,20 @@ static void ipmi_kcs_set_irq_enable(IPMIInterface *ii,
int val)
ik->irqs_enabled = val;
}
-static void ipmi_kcs_init(IPMIInterface *ii, Error **errp)
+/* min_size must be a power of 2. */
+static void ipmi_kcs_init(IPMIInterface *ii, unsigned int min_size,
+ Error **errp)
{
IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
IPMIKCS *ik = iic->get_backend_data(ii);
+ if (min_size == 0) {
+ min_size = 2;
+ }
+ ik->size_mask = min_size - 1;
ik->io_length = 2;
- memory_region_init_io(&ik->io, NULL, &ipmi_kcs_io_ops, ii, "ipmi-kcs", 2);
+ memory_region_init_io(&ik->io, NULL, &ipmi_kcs_io_ops, ii, "ipmi-kcs",
+ min_size);
}
const VMStateDescription vmstate_IPMIKCS = {
diff --git a/hw/ipmi/isa_ipmi_bt.c b/hw/ipmi/isa_ipmi_bt.c
index b711eca..a98e0ea 100644
--- a/hw/ipmi/isa_ipmi_bt.c
+++ b/hw/ipmi/isa_ipmi_bt.c
@@ -80,7 +80,7 @@ static void isa_ipmi_bt_realize(DeviceState *dev, Error
**errp)
iib->bt.bmc->intf = ii;
iib->bt.opaque = iib;
- iic->init(ii, errp);
+ iic->init(ii, 0, errp);
if (*errp)
return;
diff --git a/hw/ipmi/isa_ipmi_kcs.c b/hw/ipmi/isa_ipmi_kcs.c
index d1a5956..ab6f62e 100644
--- a/hw/ipmi/isa_ipmi_kcs.c
+++ b/hw/ipmi/isa_ipmi_kcs.c
@@ -79,7 +79,7 @@ static void ipmi_isa_realize(DeviceState *dev, Error **errp)
iik->kcs.bmc->intf = ii;
iik->kcs.opaque = iik;
- iic->init(ii, errp);
+ iic->init(ii, 0, errp);
if (*errp)
return;
diff --git a/include/hw/ipmi/ipmi.h b/include/hw/ipmi/ipmi.h
index 0affe5a..0f62ea3 100644
--- a/include/hw/ipmi/ipmi.h
+++ b/include/hw/ipmi/ipmi.h
@@ -121,7 +121,12 @@ typedef struct IPMIInterface {
typedef struct IPMIInterfaceClass {
InterfaceClass parent;
- void (*init)(struct IPMIInterface *s, Error **errp);
+ /*
+ * min_size is the requested I/O size and must be a power of 2.
+ * This is so PCI (or other busses) can request a bigger range.
+ * Use 0 for the default.
+ */
+ void (*init)(struct IPMIInterface *s, unsigned int min_size, Error **errp);
/*
* Perform various operations on the hardware. If checkonly is
diff --git a/include/hw/ipmi/ipmi_bt.h b/include/hw/ipmi/ipmi_bt.h
index 16066a7..d1e2abe 100644
--- a/include/hw/ipmi/ipmi_bt.h
+++ b/include/hw/ipmi/ipmi_bt.h
@@ -57,6 +57,7 @@ typedef struct IPMIBT {
uint32_t io_base;
unsigned long io_length;
MemoryRegion io;
+ unsigned long size_mask;
void (*raise_irq)(struct IPMIBT *ib);
void (*lower_irq)(struct IPMIBT *ib);
diff --git a/include/hw/ipmi/ipmi_kcs.h b/include/hw/ipmi/ipmi_kcs.h
index af596be..8c75e86 100644
--- a/include/hw/ipmi/ipmi_kcs.h
+++ b/include/hw/ipmi/ipmi_kcs.h
@@ -60,6 +60,7 @@ typedef struct IPMIKCS {
uint32_t io_base;
unsigned long io_length;
MemoryRegion io;
+ unsigned long size_mask;
void (*raise_irq)(struct IPMIKCS *ik);
void (*lower_irq)(struct IPMIKCS *ik);
--
2.7.4
