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spapr: improve ibm,architecture-vec-5 property handling

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ibm,architecture-vec-5 is supposed to encode all option vector 5 bits
negotiated between platform/guest. Currently we hardcode this property
in the boot-time device tree to advertise a single negotiated
capability, "Form 1" NUMA Affinity, regardless of whether or not CAS
has been invoked or that capability has actually been negotiated.

Improve this by generating ibm,architecture-vec-5 based on the full
set of option vector 5 capabilities negotiated via CAS.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Michael Roth 2016-10-24 23:47:30 -05:00 committed by David Gibson
parent 6787d27b04
commit 417ece33fc
2 changed files with 18 additions and 6 deletions
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23
hw/ppc/spapr.c
View File

@ -659,14 +659,28 @@ static int spapr_dt_cas_updates(sPAPRMachineState *spapr, void *fdt,
sPAPROptionVector *ov5_updates)
{
sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
int ret = 0;
int ret = 0, offset;
/* Generate ibm,dynamic-reconfiguration-memory node if required */
if (spapr_ovec_test(ov5_updates, OV5_DRCONF_MEMORY)) {
g_assert(smc->dr_lmb_enabled);
ret = spapr_populate_drconf_memory(spapr, fdt);
if (ret) {
goto out;
}
}
offset = fdt_path_offset(fdt, "/chosen");
if (offset < 0) {
offset = fdt_add_subnode(fdt, 0, "chosen");
if (offset < 0) {
return offset;
}
}
ret = spapr_ovec_populate_dt(fdt, offset, spapr->ov5_cas,
"ibm,architecture-vec-5");
out:
return ret;
}
@ -792,14 +806,9 @@ static void spapr_dt_chosen(sPAPRMachineState *spapr, void *fdt)
char *stdout_path = spapr_vio_stdout_path(spapr->vio_bus);
size_t cb = 0;
char *bootlist = get_boot_devices_list(&cb, true);
unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80};
_FDT(chosen = fdt_add_subnode(fdt, 0, "chosen"));
/* Set Form1_affinity */
_FDT(fdt_setprop(fdt, chosen, "ibm,architecture-vec-5",
vec5, sizeof(vec5)));
_FDT(fdt_setprop_string(fdt, chosen, "bootargs", machine->kernel_cmdline));
_FDT(fdt_setprop_cell(fdt, chosen, "linux,initrd-start",
spapr->initrd_base));
@ -1778,6 +1787,8 @@ static void ppc_spapr_init(MachineState *machine)
spapr_validate_node_memory(machine, &error_fatal);
}
spapr_ovec_set(spapr->ov5, OV5_FORM1_AFFINITY);
/* init CPUs */
if (machine->cpu_model == NULL) {
machine->cpu_model = kvm_enabled() ? "host" : smc->tcg_default_cpu;

1
include/hw/ppc/spapr_ovec.h
View File

@ -44,6 +44,7 @@ typedef struct sPAPROptionVector sPAPROptionVector;
/* option vector 5 */
#define OV5_DRCONF_MEMORY OV_BIT(2, 2)
#define OV5_FORM1_AFFINITY OV_BIT(5, 0)
/* interfaces */
sPAPROptionVector *spapr_ovec_new(void);