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ipmi: Allow a size value to be passed for I/O space

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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 <cminyard@mvista.com>
This commit is contained in:
Corey Minyard 2017-12-06 13:18:07 -06:00
parent 1739d54c8b
commit 79d29a9d06
7 changed files with 44 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

23
hw/ipmi/ipmi_kcs.c
View file

@ -232,7 +232,7 @@ 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);
@ -243,6 +243,7 @@ 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) {
@ -252,6 +253,9 @@ static uint64_t ipmi_kcs_ioport_read(void *opaque, hwaddr addr, unsigned size)
}
}
break;
default:
ret = 0xff;
}
return ret;
}
@ -267,7 +271,7 @@ 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;
@ -275,6 +279,10 @@ 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);
@ -321,13 +329,20 @@ 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);
}
int ipmi_kcs_vmstate_post_load(void *opaque, int version)