@@ -910,7 +910,8 @@ static void spapr_dt_ov5_platform_support(void *fdt, int chosen)
{
PowerPCCPU *first_ppc_cpu = POWERPC_CPU(first_cpu);
- char val[2 * 3] = {
+ char val[2 * 4] = {
+ 23, 0x00, /* Xive mode: 0 = legacy (as in ISA 2.7), 1 = Exploitation */
24, 0x00, /* Hash/Radix, filled in below. */
25, 0x00, /* Hash options: Segment Tables == no, GTSE == no. */
26, 0x40, /* Radix options: GTSE == yes. */
@@ -918,19 +919,19 @@ static void spapr_dt_ov5_platform_support(void *fdt, int chosen)
if (kvm_enabled()) {
if (kvmppc_has_cap_mmu_radix() && kvmppc_has_cap_mmu_hash_v3()) {
- val[1] = 0x80; /* OV5_MMU_BOTH */
+ val[3] = 0x80; /* OV5_MMU_BOTH */
} else if (kvmppc_has_cap_mmu_radix()) {
- val[1] = 0x40; /* OV5_MMU_RADIX_300 */
+ val[3] = 0x40; /* OV5_MMU_RADIX_300 */
} else {
- val[1] = 0x00; /* Hash */
+ val[3] = 0x00; /* Hash */
}
} else {
if (first_ppc_cpu->env.mmu_model & POWERPC_MMU_V3) {
/* V3 MMU supports both hash and radix (with dynamic switching) */
- val[1] = 0xC0;
+ val[3] = 0xC0;
} else {
/* Otherwise we can only do hash */
- val[1] = 0x00;
+ val[3] = 0x00;
}
}
_FDT(fdt_setprop(fdt, chosen, "ibm,arch-vec-5-platform-support",
@@ -50,6 +50,7 @@ typedef struct sPAPROptionVector sPAPROptionVector;
#define OV5_DRCONF_MEMORY OV_BIT(2, 2)
#define OV5_FORM1_AFFINITY OV_BIT(5, 0)
#define OV5_HP_EVT OV_BIT(6, 5)
+#define OV5_XIVE_EXPLOIT OV_BIT(23, 7)
/* ISA 3.00 MMU features: */
#define OV5_MMU_BOTH OV_BIT(24, 0) /* Radix and hash */
On POWER9, the Client Architecture Support (CAS) negotiation process determines whether the guest operates in XIVE Legacy compatibility (the former POWER8 interrupt model) or in XIVE exploitation mode (the newer POWER9 interrupt model). Bit 7 of Byte 23 of vector 5 is used for this purpose. Signed-off-by: Cédric Le Goater <clg@kaod.org> --- hw/ppc/spapr.c | 13 +++++++------ include/hw/ppc/spapr_ovec.h | 1 + 2 files changed, 8 insertions(+), 6 deletions(-)