Merge tag 'pull-ppc-20211129' of https://github.com/legoater/qemu int…

…o staging ppc 6.2 queue: * Hash64 MMU fix for FreeBSD installer # gpg: Signature made Mon 29 Nov 2021 09:49:54 PM CET # gpg: using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1 # gpg: Good signature from "Cédric Le Goater <[email protected]>" [marginal] # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1 * tag 'pull-ppc-20211129' of https://github.com/legoater/qemu: target/ppc: fix Hash64 MMU update of PTE bit R Signed-off-by: Richard Henderson <[email protected]>
UQ-PAC · Nov 29, 2021 · 50456a6 · 50456a6
2 parents a0fd8a5 + 7bf00df
commit 50456a6
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Showing 4 changed files with 12 additions and 7 deletions.
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
@@ -1414,7 +1414,7 @@ void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
         kvmppc_write_hpte(ptex, pte0, pte1);
     } else {
         if (pte0 & HPTE64_V_VALID) {
-            stq_p(spapr->htab + offset + HASH_PTE_SIZE_64 / 2, pte1);
+            stq_p(spapr->htab + offset + HPTE64_DW1, pte1);
             /*
              * When setting valid, we write PTE1 first. This ensures
              * proper synchronization with the reading code in
@@ -1430,15 +1430,15 @@ void spapr_store_hpte(PowerPCCPU *cpu, hwaddr ptex,
              * ppc_hash64_pteg_search()
              */
             smp_wmb();
-            stq_p(spapr->htab + offset + HASH_PTE_SIZE_64 / 2, pte1);
+            stq_p(spapr->htab + offset + HPTE64_DW1, pte1);
         }
     }
 }
 
 static void spapr_hpte_set_c(PPCVirtualHypervisor *vhyp, hwaddr ptex,
                              uint64_t pte1)
 {
-    hwaddr offset = ptex * HASH_PTE_SIZE_64 + 15;
+    hwaddr offset = ptex * HASH_PTE_SIZE_64 + HPTE64_DW1_C;
     SpaprMachineState *spapr = SPAPR_MACHINE(vhyp);
 
     if (!spapr->htab) {
@@ -1454,7 +1454,7 @@ static void spapr_hpte_set_c(PPCVirtualHypervisor *vhyp, hwaddr ptex,
 static void spapr_hpte_set_r(PPCVirtualHypervisor *vhyp, hwaddr ptex,
                              uint64_t pte1)
 {
-    hwaddr offset = ptex * HASH_PTE_SIZE_64 + 14;
+    hwaddr offset = ptex * HASH_PTE_SIZE_64 + HPTE64_DW1_R;
     SpaprMachineState *spapr = SPAPR_MACHINE(vhyp);
 
     if (!spapr->htab) {

diff --git a/hw/ppc/spapr_softmmu.c b/hw/ppc/spapr_softmmu.c
@@ -426,7 +426,7 @@ static void new_hpte_store(void *htab, uint64_t pteg, int slot,
     addr += slot * HASH_PTE_SIZE_64;
 
     stq_p(addr, pte0);
-    stq_p(addr + HASH_PTE_SIZE_64 / 2, pte1);
+    stq_p(addr + HPTE64_DW1, pte1);
 }
 
 static int rehash_hpte(PowerPCCPU *cpu,

diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c
@@ -786,7 +786,7 @@ static void ppc_hash64_set_dsi(CPUState *cs, int mmu_idx, uint64_t dar, uint64_t
 
 static void ppc_hash64_set_r(PowerPCCPU *cpu, hwaddr ptex, uint64_t pte1)
 {
-    hwaddr base, offset = ptex * HASH_PTE_SIZE_64 + 16;
+    hwaddr base, offset = ptex * HASH_PTE_SIZE_64 + HPTE64_DW1_R;
 
     if (cpu->vhyp) {
         PPCVirtualHypervisorClass *vhc =
@@ -803,7 +803,7 @@ static void ppc_hash64_set_r(PowerPCCPU *cpu, hwaddr ptex, uint64_t pte1)
 
 static void ppc_hash64_set_c(PowerPCCPU *cpu, hwaddr ptex, uint64_t pte1)
 {
-    hwaddr base, offset = ptex * HASH_PTE_SIZE_64 + 15;
+    hwaddr base, offset = ptex * HASH_PTE_SIZE_64 + HPTE64_DW1_C;
 
     if (cpu->vhyp) {
         PPCVirtualHypervisorClass *vhc =

diff --git a/target/ppc/mmu-hash64.h b/target/ppc/mmu-hash64.h
@@ -97,6 +97,11 @@ void ppc_hash64_finalize(PowerPCCPU *cpu);
 #define HPTE64_V_1TB_SEG        0x4000000000000000ULL
 #define HPTE64_V_VRMA_MASK      0x4001ffffff000000ULL
 
+/* PTE offsets */
+#define HPTE64_DW1              (HASH_PTE_SIZE_64 / 2)
+#define HPTE64_DW1_R            (HPTE64_DW1 + 6)
+#define HPTE64_DW1_C            (HPTE64_DW1 + 7)
+
 /* Format changes for ARCH v3 */
 #define HPTE64_V_COMMON_BITS    0x000fffffffffffffULL
 #define HPTE64_R_3_0_SSIZE_SHIFT 58