[PULL,26/38] spapr: nested: move nested part of spapr_get_pate into spapr_nested.c

Commit Message

Nicholas Piggin March 12, 2024, 4:58 p.m. UTC

From: Harsh Prateek Bora <[e-mail]>

Most of the nested code has already been moved to spapr_nested.c
This logic inside spapr_get_pate is related to nested guests and
better suited for spapr_nested.c, hence moving there.

Reviewed-by: Nicholas Piggin <[e-mail]>
Signed-off-by: Harsh Prateek Bora <[e-mail]>
Signed-off-by: Nicholas Piggin <[e-mail]>
---
 hw/ppc/spapr.c                | 28 ++-------------------------
 hw/ppc/spapr_nested.c         | 36 +++++++++++++++++++++++++++++++++++
 include/hw/ppc/spapr_nested.h |  3 ++-
 3 files changed, 40 insertions(+), 27 deletions(-)

Patch

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 7321c35174..ff429d0ffe 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1407,7 +1407,6 @@  void spapr_init_all_lpcrs(target_ulong value, target_ulong mask)
     }
 }
 
-
 static bool spapr_get_pate(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu,
                            target_ulong lpid, ppc_v3_pate_t *entry)
 {
@@ -1420,33 +1419,10 @@  static bool spapr_get_pate(PPCVirtualHypervisor *vhyp, PowerPCCPU *cpu,
         /* Copy PATE1:GR into PATE0:HR */
         entry->dw0 = spapr->patb_entry & PATE0_HR;
         entry->dw1 = spapr->patb_entry;
-
+        return true;
     } else {
-        uint64_t patb, pats;
-
-        assert(lpid != 0);
-
-        patb = spapr->nested_ptcr & PTCR_PATB;
-        pats = spapr->nested_ptcr & PTCR_PATS;
-
-        /* Check if partition table is properly aligned */
-        if (patb & MAKE_64BIT_MASK(0, pats + 12)) {
-            return false;
-        }
-
-        /* Calculate number of entries */
-        pats = 1ull << (pats + 12 - 4);
-        if (pats <= lpid) {
-            return false;
-        }
-
-        /* Grab entry */
-        patb += 16 * lpid;
-        entry->dw0 = ldq_phys(CPU(cpu)->as, patb);
-        entry->dw1 = ldq_phys(CPU(cpu)->as, patb + 8);
+        return spapr_get_pate_nested_hv(spapr, cpu, lpid, entry);
     }
-
-    return true;
 }
 
 #define HPTE(_table, _i)   (void *)(((uint64_t *)(_table)) + ((_i) * 2))
diff --git a/hw/ppc/spapr_nested.c b/hw/ppc/spapr_nested.c
index 8e0ee0d22f..f7888ca8bd 100644
--- a/hw/ppc/spapr_nested.c
+++ b/hw/ppc/spapr_nested.c
@@ -6,6 +6,7 @@ 
 #include "hw/ppc/spapr.h"
 #include "hw/ppc/spapr_cpu_core.h"
 #include "hw/ppc/spapr_nested.h"
+#include "mmu-book3s-v3.h"
 
 void spapr_nested_reset(SpaprMachineState *spapr)
 {
@@ -16,6 +17,35 @@  void spapr_nested_reset(SpaprMachineState *spapr)
 }
 
 #ifdef CONFIG_TCG
+
+bool spapr_get_pate_nested_hv(SpaprMachineState *spapr, PowerPCCPU *cpu,
+                              target_ulong lpid, ppc_v3_pate_t *entry)
+{
+    uint64_t patb, pats;
+
+    assert(lpid != 0);
+
+    patb = spapr->nested_ptcr & PTCR_PATB;
+    pats = spapr->nested_ptcr & PTCR_PATS;
+
+    /* Check if partition table is properly aligned */
+    if (patb & MAKE_64BIT_MASK(0, pats + 12)) {
+        return false;
+    }
+
+    /* Calculate number of entries */
+    pats = 1ull << (pats + 12 - 4);
+    if (pats <= lpid) {
+        return false;
+    }
+
+    /* Grab entry */
+    patb += 16 * lpid;
+    entry->dw0 = ldq_phys(CPU(cpu)->as, patb);
+    entry->dw1 = ldq_phys(CPU(cpu)->as, patb + 8);
+    return true;
+}
+
 #define PRTS_MASK      0x1f
 
 static target_ulong h_set_ptbl(PowerPCCPU *cpu,
@@ -413,4 +443,10 @@  void spapr_unregister_nested_hv(void)
 {
     /* DO NOTHING */
 }
+
+bool spapr_get_pate_nested_hv(SpaprMachineState *spapr, PowerPCCPU *cpu,
+                              target_ulong lpid, ppc_v3_pate_t *entry)
+{
+    return false;
+}
 #endif
diff --git a/include/hw/ppc/spapr_nested.h b/include/hw/ppc/spapr_nested.h
index 09d95182b2..1df1ce14f6 100644
--- a/include/hw/ppc/spapr_nested.h
+++ b/include/hw/ppc/spapr_nested.h
@@ -96,5 +96,6 @@  struct nested_ppc_state {
 };
 
 void spapr_exit_nested(PowerPCCPU *cpu, int excp);
-
+bool spapr_get_pate_nested_hv(SpaprMachineState *spapr, PowerPCCPU *cpu,
+                              target_ulong lpid, ppc_v3_pate_t *entry);
 #endif /* HW_SPAPR_NESTED_H */