[Xen-changelog] [IA64] VM_SUMMARY and VM_INFO

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID 918ce6a565b7c0d386e4d47c0b4f42d5bd18d180
# Parent  cae4f6e6deab3a75c7f580c1884767ddca0ab7c8
[IA64] VM_SUMMARY and VM_INFO

xen_pal_emulator: implements VM_SUMMARY and VM_INFO.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>

diff -r cae4f6e6deab -r 918ce6a565b7 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c        Thu Apr 13 14:52:07 2006 -0600
+++ b/xen/arch/ia64/xen/dom_fw.c        Thu Apr 13 14:57:13 2006 -0600
@@ -200,7 +200,7 @@ xen_pal_emulator(unsigned long index, u6
        unsigned long r9  = 0;
        unsigned long r10 = 0;
        unsigned long r11 = 0;
-       long status = -1;
+       long status = PAL_STATUS_UNIMPLEMENTED;
 
        if (running_on_sim)
                return pal_emulator_static(index);
@@ -254,24 +254,83 @@ xen_pal_emulator(unsigned long index, u6
                status = ia64_pal_cache_summary(&r9,&r10);
                break;
            case PAL_VM_SUMMARY:
-               // FIXME: what should xen return for these, figure out later
-               // For now, linux does the right thing if pal call fails
-               // In particular, rid_size must be set properly!
-               //status = ia64_pal_vm_summary(
-               //              (pal_vm_info_1_u_t *) &r9,
-               //              (pal_vm_info_2_u_t *) &r10);
+               {
+                       /* Use xen-specific values.
+                          hash_tag_id is somewhat random! */
+                       const pal_vm_info_1_u_t v1 =
+                               {.pal_vm_info_1_s =
+                                { .vw = 1,
+                                  .phys_add_size = 44,
+                                  .key_size = 16,
+                                  .max_pkr = 15,
+                                  .hash_tag_id = 0x30,
+                                  .max_dtr_entry = NDTRS - 1,
+                                  .max_itr_entry = NITRS - 1,
+#ifdef VHPT_GLOBAL
+                                  .max_unique_tcs = 3,
+                                  .num_tc_levels = 2
+#else
+                                  .max_unique_tcs = 2,
+                                  .num_tc_levels = 1
+#endif
+                                }};
+                       const pal_vm_info_2_u_t v2 =
+                               { .pal_vm_info_2_s =
+                                 { .impl_va_msb = 50,
+                                   .rid_size = current->domain->arch.rid_bits,
+                                   .reserved = 0 }};
+                       r9 = v1.pvi1_val;
+                       r10 = v2.pvi2_val;
+                       status = PAL_STATUS_SUCCESS;
+               }
+               break;
+           case PAL_VM_INFO:
+#ifdef VHPT_GLOBAL
+               if (in1 == 0 && in2 == 2) {
+                       /* Level 1: VHPT  */
+                       const pal_tc_info_u_t v =
+                               { .pal_tc_info_s = {.num_sets = 128,
+                                                   .associativity = 1,
+                                                   .num_entries = 128,
+                                                   .pf = 1,
+                                                   .unified = 1,
+                                                   .reduce_tr = 0,
+                                                   .reserved = 0}};
+                       r9 = v.pti_val;
+                       /* Only support PAGE_SIZE tc.  */
+                       r10 = PAGE_SIZE;
+                       status = PAL_STATUS_SUCCESS;
+               }
+#endif
+               else if (
+#ifdef VHPT_GLOBAL 
+                       in1 == 1 /* Level 2. */
+#else
+                       in1 == 0 /* Level 1. */
+#endif
+                        && (in2 == 1 || in2 == 2))
+               {
+                       /* itlb/dtlb, 1 entry.  */
+                       const pal_tc_info_u_t v =
+                               { .pal_tc_info_s = {.num_sets = 1,
+                                                   .associativity = 1,
+                                                   .num_entries = 1,
+                                                   .pf = 1,
+                                                   .unified = 0,
+                                                   .reduce_tr = 0,
+                                                   .reserved = 0}};
+                       r9 = v.pti_val;
+                       /* Only support PAGE_SIZE tc.  */
+                       r10 = PAGE_SIZE;
+                       status = PAL_STATUS_SUCCESS;
+               }
+               else
+                       status = PAL_STATUS_EINVAL;
                break;
            case PAL_RSE_INFO:
                status = ia64_pal_rse_info(
                                &r9,
                                (pal_hints_u_t *) &r10);
-               break;
-           case PAL_VM_INFO:
-               status = ia64_pal_vm_info(
-                               in1,
-                               in2,
-                               (pal_tc_info_u_t *) &r9,
-                               &r10);
                break;
            case PAL_REGISTER_INFO:
                status = ia64_pal_register_info(in1, &r9, &r10);
@@ -296,7 +355,7 @@ xen_pal_emulator(unsigned long index, u6
                                while(1)
                                printk("xen_pal_emulator: PAL_PERF_MON_INFO "
                                        "can't copy to user!!!!\n");
-                               status = -1;
+                               status = PAL_STATUS_UNIMPLEMENTED;
                                break;
                        }
                }

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