From: Mohsin Kazmi <sykazmi@cisco.com>
Date: Wed, 7 Nov 2018 15:55:18 +0000 (+0100)
Subject: physmem: Add physmem map support
X-Git-Tag: v19.04-rc0~427
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=6ec99c3147f3e8fd608973cd8f4a25c156bb1490

physmem: Add physmem map support

This patch adds support for mapping the virtual address to physical
address and size of memory allocated.

Change-Id: I7659a1881308e89b215c486fecd7c973076d0773
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
---

diff --git a/src/vlib/physmem.c b/src/vlib/physmem.c
index f881e0a8e71..37bf693f182 100755
--- a/src/vlib/physmem.c
+++ b/src/vlib/physmem.c
@@ -112,7 +112,7 @@ show_physmem (vlib_main_t * vm,
 {
   vlib_physmem_main_t *vpm = &vm->physmem_main;
   unformat_input_t _line_input, *line_input = &_line_input;
-  u32 verbose = 0;
+  u32 verbose = 0, map = 0;
 
   if (unformat_user (input, unformat_line_input, line_input))
     {
@@ -126,20 +126,26 @@ show_physmem (vlib_main_t * vm,
 	    verbose = 2;
 	  else if (unformat (line_input, "d"))
 	    verbose = 2;
+	  else if (unformat (line_input, "map"))
+	    map = 1;
 	  else
 	    break;
 	}
       unformat_free (line_input);
     }
 
-  vlib_cli_output (vm, "  %U", format_pmalloc, vpm->pmalloc_main, verbose);
+  if (map)
+    vlib_cli_output (vm, " %U", format_pmalloc_map, vpm->pmalloc_main);
+  else
+    vlib_cli_output (vm, " %U", format_pmalloc, vpm->pmalloc_main, verbose);
+
   return 0;
 }
 
 /* *INDENT-OFF* */
 VLIB_CLI_COMMAND (show_physmem_command, static) = {
   .path = "show physmem",
-  .short_help = "Show physical memory allocation",
+  .short_help = "show physmem [verbose | detail | map]",
   .function = show_physmem,
 };
 /* *INDENT-ON* */
diff --git a/src/vppinfra/pmalloc.c b/src/vppinfra/pmalloc.c
index 46ccd7f6efc..62b4f60c2eb 100644
--- a/src/vppinfra/pmalloc.c
+++ b/src/vppinfra/pmalloc.c
@@ -687,6 +687,27 @@ format_pmalloc (u8 * s, va_list * va)
   return s;
 }
 
+u8 *
+format_pmalloc_map (u8 * s, va_list * va)
+{
+  clib_pmalloc_main_t *pm = va_arg (*va, clib_pmalloc_main_t *);
+
+  u32 index;
+  s = format (s, "%16s %13s %8s", "virtual-addr", "physical-addr", "size");
+  vec_foreach_index (index, pm->lookup_table)
+  {
+    uword *lookup_val, pa, va;
+    lookup_val = vec_elt_at_index (pm->lookup_table, index);
+    va = pointer_to_uword (pm->base) + (index << pm->lookup_log2_page_sz);
+    pa = va - *lookup_val;
+    s =
+      format (s, "\n %16p %13p %8U", uword_to_pointer (va, u64),
+	      uword_to_pointer (pa, u64), format_log2_page_size,
+	      pm->lookup_log2_page_sz);
+  }
+  return s;
+}
+
 /*
  * fd.io coding-style-patch-verification: ON
  *
diff --git a/src/vppinfra/pmalloc.h b/src/vppinfra/pmalloc.h
index 9cd652971a6..eae317fb945 100644
--- a/src/vppinfra/pmalloc.h
+++ b/src/vppinfra/pmalloc.h
@@ -120,6 +120,7 @@ void *clib_pmalloc_alloc_from_arena (clib_pmalloc_main_t * pm, void *arena_va,
 				     uword size, uword align);
 
 format_function_t format_pmalloc;
+format_function_t format_pmalloc_map;
 
 always_inline clib_error_t *
 clib_pmalloc_last_error (clib_pmalloc_main_t * pm)