diff mbox series

[PULL,03/34] spapr: Fix support of POWER5+ processors

Message ID 20220112115551.987666-4-clg@kaod.org
State New
Headers show
Series [PULL,01/34] pseries: Update SLOF firmware image | expand

Commit Message

Cédric Le Goater Jan. 12, 2022, 11:55 a.m. UTC 
POWER5+ (ISA v2.03) processors are supported by the pseries machine
but they do not have Altivec instructions. Do not advertise support
for it in the DT.

To be noted that this test is in contradiction with the assert in
cap_vsx_apply().

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Fabiano Rosas <farosas@linux.ibm.com>
Message-Id: <20220105095142.3990430-3-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/ppc/spapr.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 837342932586..72f5dce751ee 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -723,10 +723,12 @@  static void spapr_dt_cpu(CPUState *cs, void *fdt, int offset,
      *
      * Only CPUs for which we create core types in spapr_cpu_core.c
      * are possible, and all of those have VMX */
-    if (spapr_get_cap(spapr, SPAPR_CAP_VSX) != 0) {
-        _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 2)));
-    } else {
-        _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 1)));
+    if (env->insns_flags & PPC_ALTIVEC) {
+        if (spapr_get_cap(spapr, SPAPR_CAP_VSX) != 0) {
+            _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 2)));
+        } else {
+            _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 1)));
+        }
     }
 
     /* Advertise DFP (Decimal Floating Point) if available