[v5,09/12,PowerPC] Add support for TAR

Message ID 20181022223242.7858-10-pedromfc@linux.ibm.com
State New
Headers show
Series
  • GDB support for more powerpc registers on linux
Related show

Commit Message

Pedro Franco de Carvalho Oct. 22, 2018, 10:32 p.m.
From: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>


This patch adds support for the Target Address Register for powerpc
linux native and core file targets, and in the powerpc linux server
stub.

gdb/ChangeLog:
YYYY-MM-DD  Edjunior Barbosa Machado  <emachado@linux.vnet.ibm.com>
	    Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>

	* arch/ppc-linux-tdesc.h (tdesc_powerpc_isa207_vsx32l)
	(tdesc_powerpc_isa207_vsx64l): Declare.
	* arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_TARREGSET): Define.
	(struct ppc_linux_features) <isa207>: New field.
	(ppc_linux_no_features): Add initializer for isa207 field.
	* arch/ppc-linux-common.c (ppc_linux_match_description): Return
	new tdescs.
	* nat/ppc-linux.h (PPC_FEATURE2_ARCH_2_07, PPC_FEATURE2_TAR)
	(NT_PPC_TAR): Define if not already defined.
	* features/Makefile (WHICH): Add rs6000/powerpc-isa207-vsx32l and
	rs6000/powerpc-isa207-vsx64l.
	(XMLTOC): Add rs6000/powerpc-isa207-vsx32l.xml and
	rs6000/powerpc-isa207-vsx64l.xml.
	* features/rs6000/power-tar.xml: New file.
	* features/rs6000/powerpc-isa207-vsx32l.xml: New file.
	* features/rs6000/powerpc-isa207-vsx64l.xml: New file.
	* features/rs6000/powerpc-isa207-vsx32l.c: Generate.
	* features/rs6000/powerpc-isa207-vsx64l.c: Generate.
	* regformats/rs6000/powerpc-isa207-vsx32l.dat: Generate.
	* regformats/rs6000/powerpc-isa207-vsx64l.dat: Generate.
	* ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call
	fetch_regset with the TAR regset.
	(store_register, store_ppc_registers): Call store_regset with the
	TAR regset.
	(ppc_linux_nat_target::read_description): Set isa207 field in the
	features struct if needed.
	* ppc-linux-tdep.c: Include
	features/rs6000/powerpc-isa207-vsx32l.c and
	features/rs6000/powerpc-isa207-vsx64l.c.
	(ppc32_regmap_tar, ppc32_linux_tarregset): New globals.
	(ppc_linux_iterate_over_regset_sections): Call back with the tar
	regset.
	(ppc_linux_core_read_description): Check if the tar section is
	present and set isa207 in the features struct.
	(_initialize_ppc_linux_tdep): Call
	initialize_tdesc_powerpc_isa207_vsx32l and
	initialize_tdesc_powerpc_isa207_vsx64l.
	* ppc-linux-tdep.h (ppc32_linux_tarregset): Declare.
	* ppc-tdep.h (gdbarch_tdep) <ppc_tar_regnum>: New field.
	(enum) <PPC_TAR_REGNUM>: New enum value.
	* rs6000-tdep.c (rs6000_gdbarch_init): Look for and validate tar
	feature.
	(ppc_process_record_op31): Record changes to TAR.

gdb/gdbserver/ChangeLog:
YYYY-MM-DD  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>

	* configure.srv (ipa_ppc_linux_regobj): Add
	powerpc-isa207-vsx64l-ipa.o and powerpc-isa207-vsx32l-ipa.o.
	(powerpc*-*-linux*): Add powerpc-isa207-vsx32l.o and
	powerpc-isa207-vsx64l.o to srv_regobj, add rs6000/power-tar.xml,
	rs6000/powerpc-isa207-vsx32l.xml, and
	rs6000/powerpc-isa207-vsx64l.xml to srv_xmlfiles.
	* linux-ppc-tdesc-init.h (enum ppc_linux_tdesc)
	<PPC_TDESC_ISA207_VSX>: New enum value.
	(init_registers_powerpc_isa207_vsx32l): Declare.
	(init_registers_powerpc_isa207_vsx64l): Declare.
	* linux-ppc-low.c (ppc_fill_tarregset): New function.
	(ppc_store_tarregset): New function.
	(ppc_regsets): Add entry for the TAR regset.
	(ppc_arch_setup): Set isa207 in features struct when needed.  Set
	size for the TAR regsets.
	(ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA207_VSX.
	(initialize_low_arch): Call init_registers_powerpc_isa207_vsx32l
	and init_registers_powerpc_isa207_vsx64l.
	* linux-ppc-ipa.c (get_ipa_tdesc): Handle PPC_TDESC_ISA207_VSX.
	(initialize_low_tracepoint): Call
	init_registers_powerpc_isa207_vsx32l and
	init_registers_powerpc_isa207_vsx64l.

gdb/testsuite/ChangeLog:
YYYY-MM-DD  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>

	* gdb.arch/powerpc-tar.c: New file.
	* gdb.arch/powerpc-tar.exp: New file.

gdb/doc/ChangeLog:
YYYY-MM-DD  Pedro Franco de Carvalho  <pedromfc@linux.ibm.com>

	* gdb.texinfo (PowerPC Features): Describe new feature
	"org.gnu.gdb.power.tar".
---
 gdb/arch/ppc-linux-common.c                     |   6 +-
 gdb/arch/ppc-linux-common.h                     |   3 +
 gdb/arch/ppc-linux-tdesc.h                      |   2 +
 gdb/doc/gdb.texinfo                             |   3 +
 gdb/features/Makefile                           |   3 +
 gdb/features/rs6000/power-tar.xml               |  12 ++
 gdb/features/rs6000/powerpc-isa207-vsx32l.c     | 203 ++++++++++++++++++++++++
 gdb/features/rs6000/powerpc-isa207-vsx32l.xml   |  19 +++
 gdb/features/rs6000/powerpc-isa207-vsx64l.c     | 203 ++++++++++++++++++++++++
 gdb/features/rs6000/powerpc-isa207-vsx64l.xml   |  19 +++
 gdb/gdbserver/configure.srv                     |   7 +-
 gdb/gdbserver/linux-ppc-ipa.c                   |   6 +
 gdb/gdbserver/linux-ppc-low.c                   |  41 ++++-
 gdb/gdbserver/linux-ppc-tdesc-init.h            |   7 +
 gdb/nat/ppc-linux.h                             |  11 ++
 gdb/ppc-linux-nat.c                             |  34 +++-
 gdb/ppc-linux-tdep.c                            |  33 +++-
 gdb/ppc-linux-tdep.h                            |   1 +
 gdb/ppc-tdep.h                                  |   4 +
 gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat | 147 +++++++++++++++++
 gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat | 147 +++++++++++++++++
 gdb/rs6000-tdep.c                               |  25 +++
 gdb/testsuite/gdb.arch/powerpc-tar.c            |  33 ++++
 gdb/testsuite/gdb.arch/powerpc-tar.exp          | 122 ++++++++++++++
 24 files changed, 1085 insertions(+), 6 deletions(-)
 create mode 100644 gdb/features/rs6000/power-tar.xml
 create mode 100644 gdb/features/rs6000/powerpc-isa207-vsx32l.c
 create mode 100644 gdb/features/rs6000/powerpc-isa207-vsx32l.xml
 create mode 100644 gdb/features/rs6000/powerpc-isa207-vsx64l.c
 create mode 100644 gdb/features/rs6000/powerpc-isa207-vsx64l.xml
 create mode 100644 gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat
 create mode 100644 gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat
 create mode 100644 gdb/testsuite/gdb.arch/powerpc-tar.c
 create mode 100644 gdb/testsuite/gdb.arch/powerpc-tar.exp

-- 
2.13.6

Comments

Eli Zaretskii Oct. 23, 2018, 2:34 a.m. | #1
> From: Pedro Franco de Carvalho <pedromfc@linux.ibm.com>

> Cc: uweigand@de.ibm.com, edjunior@gmail.com

> Date: Mon, 22 Oct 2018 19:32:39 -0300

> 

> From: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>

> 

> This patch adds support for the Target Address Register for powerpc

> linux native and core file targets, and in the powerpc linux server

> stub.


Thanks, the documentation part is approved.
Pedro Franco de Carvalho Oct. 23, 2018, 6:49 p.m. | #2
Eli Zaretskii <eliz@gnu.org> writes:

>> From: Pedro Franco de Carvalho <pedromfc@linux.ibm.com>

>> Cc: uweigand@de.ibm.com, edjunior@gmail.com

>> Date: Mon, 22 Oct 2018 19:32:39 -0300

>> 

>> From: Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com>

>> 

>> This patch adds support for the Target Address Register for powerpc

>> linux native and core file targets, and in the powerpc linux server

>> stub.

>

> Thanks, the documentation part is approved.


Thanks, Eli!

Patch

diff --git a/gdb/arch/ppc-linux-common.c b/gdb/arch/ppc-linux-common.c
index 7cf08eb7da..b8a7cdb2ad 100644
--- a/gdb/arch/ppc-linux-common.c
+++ b/gdb/arch/ppc-linux-common.c
@@ -53,7 +53,8 @@  ppc_linux_match_description (struct ppc_linux_features features)
       if (features.cell)
 	tdesc = tdesc_powerpc_cell64l;
       else if (features.vsx)
-	tdesc = (features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx64l
+	tdesc = (features.isa207? tdesc_powerpc_isa207_vsx64l
+		 : features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx64l
 		 : features.isa205? tdesc_powerpc_isa205_vsx64l
 		 : tdesc_powerpc_vsx64l);
       else if (features.altivec)
@@ -70,7 +71,8 @@  ppc_linux_match_description (struct ppc_linux_features features)
       if (features.cell)
 	tdesc = tdesc_powerpc_cell32l;
       else if (features.vsx)
-	tdesc = (features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx32l
+	tdesc = (features.isa207? tdesc_powerpc_isa207_vsx32l
+		 : features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx32l
 		 : features.isa205? tdesc_powerpc_isa205_vsx32l
 		 : tdesc_powerpc_vsx32l);
       else if (features.altivec)
diff --git a/gdb/arch/ppc-linux-common.h b/gdb/arch/ppc-linux-common.h
index 666954e765..f0e4a4221f 100644
--- a/gdb/arch/ppc-linux-common.h
+++ b/gdb/arch/ppc-linux-common.h
@@ -32,6 +32,7 @@  struct target_desc;
 #define PPC_LINUX_SIZEOF_VSXREGSET 256
 #define PPC_LINUX_SIZEOF_PPRREGSET 8
 #define PPC_LINUX_SIZEOF_DSCRREGSET 8
+#define PPC_LINUX_SIZEOF_TARREGSET 8
 
 /* Check if the hwcap auxv entry indicates that isa205 is supported.  */
 bool ppc_linux_has_isa205 (CORE_ADDR hwcap);
@@ -44,6 +45,7 @@  struct ppc_linux_features
   bool vsx;
   bool isa205;
   bool ppr_dscr;
+  bool isa207;
   bool cell;
 };
 
@@ -55,6 +57,7 @@  const struct ppc_linux_features ppc_linux_no_features = {
   false,
   false,
   false,
+  false,
 };
 
 /* Return a target description that matches FEATURES.  */
diff --git a/gdb/arch/ppc-linux-tdesc.h b/gdb/arch/ppc-linux-tdesc.h
index 3b5a2286e0..9962879786 100644
--- a/gdb/arch/ppc-linux-tdesc.h
+++ b/gdb/arch/ppc-linux-tdesc.h
@@ -30,6 +30,7 @@  extern struct target_desc *tdesc_powerpc_isa205_32l;
 extern struct target_desc *tdesc_powerpc_isa205_altivec32l;
 extern struct target_desc *tdesc_powerpc_isa205_vsx32l;
 extern struct target_desc *tdesc_powerpc_isa205_ppr_dscr_vsx32l;
+extern struct target_desc *tdesc_powerpc_isa207_vsx32l;
 extern struct target_desc *tdesc_powerpc_e500l;
 
 extern struct target_desc *tdesc_powerpc_64l;
@@ -40,5 +41,6 @@  extern struct target_desc *tdesc_powerpc_isa205_64l;
 extern struct target_desc *tdesc_powerpc_isa205_altivec64l;
 extern struct target_desc *tdesc_powerpc_isa205_vsx64l;
 extern struct target_desc *tdesc_powerpc_isa205_ppr_dscr_vsx64l;
+extern struct target_desc *tdesc_powerpc_isa207_vsx64l;
 
 #endif /* ARCH_PPC_LINUX_TDESC_H */
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 34d4f7fad1..e91e4b81a2 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -43132,6 +43132,9 @@  contain the 64-bit register @samp{ppr}.
 The @samp{org.gnu.gdb.power.dscr} feature is optional.  It should
 contain the 64-bit register @samp{dscr}.
 
+The @samp{org.gnu.gdb.power.tar} feature is optional.  It should
+contain the 64-bit register @samp{tar}.
+
 @node S/390 and System z Features
 @subsection S/390 and System z Features
 @cindex target descriptions, S/390 features
diff --git a/gdb/features/Makefile b/gdb/features/Makefile
index 9755646e2e..6eaa7db05f 100644
--- a/gdb/features/Makefile
+++ b/gdb/features/Makefile
@@ -75,6 +75,7 @@  WHICH = aarch64 \
 	rs6000/powerpc-isa205-vsx32l rs6000/powerpc-isa205-vsx64l \
 	rs6000/powerpc-isa205-ppr-dscr-vsx32l \
 	rs6000/powerpc-isa205-ppr-dscr-vsx64l \
+	rs6000/powerpc-isa207-vsx32l rs6000/powerpc-isa207-vsx64l \
 	s390-linux32 s390-linux64 s390x-linux64 \
 	s390-linux32v1 s390-linux64v1 s390x-linux64v1 \
 	s390-linux32v2 s390-linux64v2 s390x-linux64v2 \
@@ -171,6 +172,8 @@  XMLTOC = \
 	rs6000/powerpc-isa205-vsx64l.xml \
 	rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml \
 	rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml \
+	rs6000/powerpc-isa207-vsx32l.xml \
+	rs6000/powerpc-isa207-vsx64l.xml \
 	rs6000/powerpc-vsx32.xml \
 	rs6000/powerpc-vsx32l.xml \
 	rs6000/powerpc-vsx64.xml \
diff --git a/gdb/features/rs6000/power-tar.xml b/gdb/features/rs6000/power-tar.xml
new file mode 100644
index 0000000000..7861ccea18
--- /dev/null
+++ b/gdb/features/rs6000/power-tar.xml
@@ -0,0 +1,12 @@ 
+<?xml version="1.0"?>
+<!-- Copyright (C) 2018 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!-- POWER8 Target Address Register.  -->
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.power.tar">
+  <reg name="tar" bitsize="64" type="uint64"/>
+</feature>
diff --git a/gdb/features/rs6000/powerpc-isa207-vsx32l.c b/gdb/features/rs6000/powerpc-isa207-vsx32l.c
new file mode 100644
index 0000000000..73c7a01077
--- /dev/null
+++ b/gdb/features/rs6000/powerpc-isa207-vsx32l.c
@@ -0,0 +1,203 @@ 
+/* THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi:set ro:
+  Original: powerpc-isa207-vsx32l.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_powerpc_isa207_vsx32l;
+static void
+initialize_tdesc_powerpc_isa207_vsx32l (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  set_tdesc_architecture (result, bfd_scan_arch ("powerpc:common"));
+
+  struct tdesc_feature *feature;
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.core");
+  tdesc_create_reg (feature, "r0", 0, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r1", 1, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r2", 2, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r3", 3, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r4", 4, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r5", 5, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r6", 6, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r7", 7, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r8", 8, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r9", 9, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r10", 10, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r11", 11, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r12", 12, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r13", 13, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r14", 14, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r15", 15, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r16", 16, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r17", 17, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r18", 18, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r19", 19, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r20", 20, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r21", 21, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r22", 22, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r23", 23, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r24", 24, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r25", 25, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r26", 26, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r27", 27, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r28", 28, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r29", 29, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r30", 30, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "r31", 31, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "pc", 64, 1, NULL, 32, "code_ptr");
+  tdesc_create_reg (feature, "msr", 65, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "cr", 66, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "lr", 67, 1, NULL, 32, "code_ptr");
+  tdesc_create_reg (feature, "ctr", 68, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "xer", 69, 1, NULL, 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.fpu");
+  tdesc_create_reg (feature, "f0", 32, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f1", 33, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f2", 34, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f3", 35, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f4", 36, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f5", 37, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f6", 38, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f7", 39, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f8", 40, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f9", 41, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f10", 42, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f11", 43, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f12", 44, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f13", 45, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f14", 46, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f15", 47, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f16", 48, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f17", 49, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f18", 50, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f19", 51, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f20", 52, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f21", 53, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f22", 54, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f23", 55, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f24", 56, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f25", 57, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f26", 58, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f27", 59, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f28", 60, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f29", 61, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f30", 62, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f31", 63, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "fpscr", 70, 1, "float", 64, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.linux");
+  tdesc_create_reg (feature, "orig_r3", 71, 1, NULL, 32, "int");
+  tdesc_create_reg (feature, "trap", 72, 1, NULL, 32, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.altivec");
+  tdesc_type *element_type;
+  element_type = tdesc_named_type (feature, "ieee_single");
+  tdesc_create_vector (feature, "v4f", element_type, 4);
+
+  element_type = tdesc_named_type (feature, "int32");
+  tdesc_create_vector (feature, "v4i32", element_type, 4);
+
+  element_type = tdesc_named_type (feature, "int16");
+  tdesc_create_vector (feature, "v8i16", element_type, 8);
+
+  element_type = tdesc_named_type (feature, "int8");
+  tdesc_create_vector (feature, "v16i8", element_type, 16);
+
+  tdesc_type_with_fields *type_with_fields;
+  type_with_fields = tdesc_create_union (feature, "vec128");
+  tdesc_type *field_type;
+  field_type = tdesc_named_type (feature, "uint128");
+  tdesc_add_field (type_with_fields, "uint128", field_type);
+  field_type = tdesc_named_type (feature, "v4f");
+  tdesc_add_field (type_with_fields, "v4_float", field_type);
+  field_type = tdesc_named_type (feature, "v4i32");
+  tdesc_add_field (type_with_fields, "v4_int32", field_type);
+  field_type = tdesc_named_type (feature, "v8i16");
+  tdesc_add_field (type_with_fields, "v8_int16", field_type);
+  field_type = tdesc_named_type (feature, "v16i8");
+  tdesc_add_field (type_with_fields, "v16_int8", field_type);
+
+  tdesc_create_reg (feature, "vr0", 73, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr1", 74, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr2", 75, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr3", 76, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr4", 77, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr5", 78, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr6", 79, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr7", 80, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr8", 81, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr9", 82, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr10", 83, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr11", 84, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr12", 85, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr13", 86, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr14", 87, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr15", 88, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr16", 89, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr17", 90, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr18", 91, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr19", 92, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr20", 93, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr21", 94, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr22", 95, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr23", 96, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr24", 97, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr25", 98, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr26", 99, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr27", 100, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr28", 101, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr29", 102, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr30", 103, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr31", 104, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vscr", 105, 1, "vector", 32, "int");
+  tdesc_create_reg (feature, "vrsave", 106, 1, "vector", 32, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.vsx");
+  tdesc_create_reg (feature, "vs0h", 107, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs1h", 108, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs2h", 109, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs3h", 110, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs4h", 111, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs5h", 112, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs6h", 113, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs7h", 114, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs8h", 115, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs9h", 116, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs10h", 117, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs11h", 118, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs12h", 119, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs13h", 120, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs14h", 121, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs15h", 122, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs16h", 123, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs17h", 124, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs18h", 125, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs19h", 126, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs20h", 127, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs21h", 128, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs22h", 129, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs23h", 130, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs24h", 131, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs25h", 132, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs26h", 133, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs27h", 134, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs28h", 135, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs29h", 136, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs30h", 137, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs31h", 138, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.ppr");
+  tdesc_create_reg (feature, "ppr", 139, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.dscr");
+  tdesc_create_reg (feature, "dscr", 140, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.tar");
+  tdesc_create_reg (feature, "tar", 141, 1, NULL, 64, "uint64");
+
+  tdesc_powerpc_isa207_vsx32l = result;
+}
diff --git a/gdb/features/rs6000/powerpc-isa207-vsx32l.xml b/gdb/features/rs6000/powerpc-isa207-vsx32l.xml
new file mode 100644
index 0000000000..599e6a24a2
--- /dev/null
+++ b/gdb/features/rs6000/powerpc-isa207-vsx32l.xml
@@ -0,0 +1,19 @@ 
+<?xml version="1.0"?>
+<!-- Copyright (C) 2018 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>powerpc:common</architecture>
+  <xi:include href="power-core.xml"/>
+  <xi:include href="power-fpu-isa205.xml"/>
+  <xi:include href="power-linux.xml"/>
+  <xi:include href="power-altivec.xml"/>
+  <xi:include href="power-vsx.xml"/>
+  <xi:include href="power-ppr.xml"/>
+  <xi:include href="power-dscr.xml"/>
+  <xi:include href="power-tar.xml"/>
+</target>
diff --git a/gdb/features/rs6000/powerpc-isa207-vsx64l.c b/gdb/features/rs6000/powerpc-isa207-vsx64l.c
new file mode 100644
index 0000000000..9c735522d2
--- /dev/null
+++ b/gdb/features/rs6000/powerpc-isa207-vsx64l.c
@@ -0,0 +1,203 @@ 
+/* THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi:set ro:
+  Original: powerpc-isa207-vsx64l.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_powerpc_isa207_vsx64l;
+static void
+initialize_tdesc_powerpc_isa207_vsx64l (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  set_tdesc_architecture (result, bfd_scan_arch ("powerpc:common64"));
+
+  struct tdesc_feature *feature;
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.core");
+  tdesc_create_reg (feature, "r0", 0, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r1", 1, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r2", 2, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r3", 3, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r4", 4, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r5", 5, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r6", 6, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r7", 7, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r8", 8, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r9", 9, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r10", 10, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r11", 11, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r12", 12, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r13", 13, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r14", 14, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r15", 15, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r16", 16, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r17", 17, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r18", 18, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r19", 19, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r20", 20, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r21", 21, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r22", 22, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r23", 23, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r24", 24, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r25", 25, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r26", 26, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r27", 27, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r28", 28, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r29", 29, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r30", 30, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "r31", 31, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "pc", 64, 1, NULL, 64, "code_ptr");
+  tdesc_create_reg (feature, "msr", 65, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "cr", 66, 1, NULL, 32, "uint32");
+  tdesc_create_reg (feature, "lr", 67, 1, NULL, 64, "code_ptr");
+  tdesc_create_reg (feature, "ctr", 68, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "xer", 69, 1, NULL, 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.fpu");
+  tdesc_create_reg (feature, "f0", 32, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f1", 33, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f2", 34, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f3", 35, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f4", 36, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f5", 37, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f6", 38, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f7", 39, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f8", 40, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f9", 41, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f10", 42, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f11", 43, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f12", 44, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f13", 45, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f14", 46, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f15", 47, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f16", 48, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f17", 49, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f18", 50, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f19", 51, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f20", 52, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f21", 53, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f22", 54, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f23", 55, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f24", 56, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f25", 57, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f26", 58, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f27", 59, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f28", 60, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f29", 61, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f30", 62, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "f31", 63, 1, NULL, 64, "ieee_double");
+  tdesc_create_reg (feature, "fpscr", 70, 1, "float", 64, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.linux");
+  tdesc_create_reg (feature, "orig_r3", 71, 1, NULL, 64, "int");
+  tdesc_create_reg (feature, "trap", 72, 1, NULL, 64, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.altivec");
+  tdesc_type *element_type;
+  element_type = tdesc_named_type (feature, "ieee_single");
+  tdesc_create_vector (feature, "v4f", element_type, 4);
+
+  element_type = tdesc_named_type (feature, "int32");
+  tdesc_create_vector (feature, "v4i32", element_type, 4);
+
+  element_type = tdesc_named_type (feature, "int16");
+  tdesc_create_vector (feature, "v8i16", element_type, 8);
+
+  element_type = tdesc_named_type (feature, "int8");
+  tdesc_create_vector (feature, "v16i8", element_type, 16);
+
+  tdesc_type_with_fields *type_with_fields;
+  type_with_fields = tdesc_create_union (feature, "vec128");
+  tdesc_type *field_type;
+  field_type = tdesc_named_type (feature, "uint128");
+  tdesc_add_field (type_with_fields, "uint128", field_type);
+  field_type = tdesc_named_type (feature, "v4f");
+  tdesc_add_field (type_with_fields, "v4_float", field_type);
+  field_type = tdesc_named_type (feature, "v4i32");
+  tdesc_add_field (type_with_fields, "v4_int32", field_type);
+  field_type = tdesc_named_type (feature, "v8i16");
+  tdesc_add_field (type_with_fields, "v8_int16", field_type);
+  field_type = tdesc_named_type (feature, "v16i8");
+  tdesc_add_field (type_with_fields, "v16_int8", field_type);
+
+  tdesc_create_reg (feature, "vr0", 73, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr1", 74, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr2", 75, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr3", 76, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr4", 77, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr5", 78, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr6", 79, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr7", 80, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr8", 81, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr9", 82, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr10", 83, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr11", 84, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr12", 85, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr13", 86, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr14", 87, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr15", 88, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr16", 89, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr17", 90, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr18", 91, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr19", 92, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr20", 93, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr21", 94, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr22", 95, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr23", 96, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr24", 97, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr25", 98, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr26", 99, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr27", 100, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr28", 101, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr29", 102, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr30", 103, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vr31", 104, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "vscr", 105, 1, "vector", 32, "int");
+  tdesc_create_reg (feature, "vrsave", 106, 1, "vector", 32, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.vsx");
+  tdesc_create_reg (feature, "vs0h", 107, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs1h", 108, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs2h", 109, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs3h", 110, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs4h", 111, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs5h", 112, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs6h", 113, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs7h", 114, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs8h", 115, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs9h", 116, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs10h", 117, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs11h", 118, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs12h", 119, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs13h", 120, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs14h", 121, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs15h", 122, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs16h", 123, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs17h", 124, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs18h", 125, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs19h", 126, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs20h", 127, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs21h", 128, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs22h", 129, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs23h", 130, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs24h", 131, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs25h", 132, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs26h", 133, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs27h", 134, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs28h", 135, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs29h", 136, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs30h", 137, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "vs31h", 138, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.ppr");
+  tdesc_create_reg (feature, "ppr", 139, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.dscr");
+  tdesc_create_reg (feature, "dscr", 140, 1, NULL, 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.power.tar");
+  tdesc_create_reg (feature, "tar", 141, 1, NULL, 64, "uint64");
+
+  tdesc_powerpc_isa207_vsx64l = result;
+}
diff --git a/gdb/features/rs6000/powerpc-isa207-vsx64l.xml b/gdb/features/rs6000/powerpc-isa207-vsx64l.xml
new file mode 100644
index 0000000000..42a23cc001
--- /dev/null
+++ b/gdb/features/rs6000/powerpc-isa207-vsx64l.xml
@@ -0,0 +1,19 @@ 
+<?xml version="1.0"?>
+<!-- Copyright (C) 2018 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>powerpc:common64</architecture>
+  <xi:include href="power64-core.xml"/>
+  <xi:include href="power-fpu-isa205.xml"/>
+  <xi:include href="power64-linux.xml"/>
+  <xi:include href="power-altivec.xml"/>
+  <xi:include href="power-vsx.xml"/>
+  <xi:include href="power-ppr.xml"/>
+  <xi:include href="power-dscr.xml"/>
+  <xi:include href="power-tar.xml"/>
+</target>
diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
index bb0272a29f..7cf7cac3f5 100644
--- a/gdb/gdbserver/configure.srv
+++ b/gdb/gdbserver/configure.srv
@@ -32,7 +32,7 @@  else
    srv_amd64_linux_regobj=""
 fi
 
-ipa_ppc_linux_regobj="powerpc-32l-ipa.o powerpc-altivec32l-ipa.o powerpc-cell32l-ipa.o powerpc-vsx32l-ipa.o powerpc-isa205-32l-ipa.o powerpc-isa205-altivec32l-ipa.o powerpc-isa205-vsx32l-ipa.o powerpc-isa205-ppr-dscr-vsx32l-ipa.o powerpc-e500l-ipa.o powerpc-64l-ipa.o powerpc-altivec64l-ipa.o powerpc-cell64l-ipa.o powerpc-vsx64l-ipa.o powerpc-isa205-64l-ipa.o powerpc-isa205-altivec64l-ipa.o powerpc-isa205-vsx64l-ipa.o powerpc-isa205-ppr-dscr-vsx64l-ipa.o"
+ipa_ppc_linux_regobj="powerpc-32l-ipa.o powerpc-altivec32l-ipa.o powerpc-cell32l-ipa.o powerpc-vsx32l-ipa.o powerpc-isa205-32l-ipa.o powerpc-isa205-altivec32l-ipa.o powerpc-isa205-vsx32l-ipa.o powerpc-isa205-ppr-dscr-vsx32l-ipa.o powerpc-isa207-vsx32l-ipa.o powerpc-e500l-ipa.o powerpc-64l-ipa.o powerpc-altivec64l-ipa.o powerpc-cell64l-ipa.o powerpc-vsx64l-ipa.o powerpc-isa205-64l-ipa.o powerpc-isa205-altivec64l-ipa.o powerpc-isa205-vsx64l-ipa.o powerpc-isa205-ppr-dscr-vsx64l-ipa.o powerpc-isa207-vsx64l-ipa.o"
 
 # Linux object files.  This is so we don't have to repeat
 # these files over and over again.
@@ -218,6 +218,7 @@  case "${target}" in
 			srv_regobj="${srv_regobj} powerpc-isa205-altivec32l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-vsx32l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-ppr-dscr-vsx32l.o"
+			srv_regobj="${srv_regobj} powerpc-isa207-vsx32l.o"
 			srv_regobj="${srv_regobj} powerpc-e500l.o"
 			srv_regobj="${srv_regobj} powerpc-64l.o"
 			srv_regobj="${srv_regobj} powerpc-altivec64l.o"
@@ -227,6 +228,7 @@  case "${target}" in
 			srv_regobj="${srv_regobj} powerpc-isa205-altivec64l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-vsx64l.o"
 			srv_regobj="${srv_regobj} powerpc-isa205-ppr-dscr-vsx64l.o"
+			srv_regobj="${srv_regobj} powerpc-isa207-vsx64l.o"
 			srv_tgtobj="$srv_linux_obj linux-ppc-low.o ppc-linux.o"
 			srv_tgtobj="${srv_tgtobj} arch/ppc-linux-common.o"
 			srv_xmlfiles="rs6000/powerpc-32l.xml"
@@ -237,6 +239,7 @@  case "${target}" in
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-altivec32l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-vsx32l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-ppr-dscr-vsx32l.xml"
+			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa207-vsx32l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-altivec.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-vsx.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-core.xml"
@@ -245,6 +248,7 @@  case "${target}" in
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-fpu-isa205.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-dscr.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-ppr.xml"
+			srv_xmlfiles="${srv_xmlfiles} rs6000/power-tar.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-e500l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power-spe.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-64l.xml"
@@ -255,6 +259,7 @@  case "${target}" in
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-altivec64l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-vsx64l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa205-ppr-dscr-vsx64l.xml"
+			srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-isa207-vsx64l.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power64-core.xml"
 			srv_xmlfiles="${srv_xmlfiles} rs6000/power64-linux.xml"
 			srv_linux_usrregs=yes
diff --git a/gdb/gdbserver/linux-ppc-ipa.c b/gdb/gdbserver/linux-ppc-ipa.c
index c8b4c3b2da..b543dceba5 100644
--- a/gdb/gdbserver/linux-ppc-ipa.c
+++ b/gdb/gdbserver/linux-ppc-ipa.c
@@ -193,6 +193,8 @@  get_ipa_tdesc (int idx)
       return tdesc_powerpc_isa205_vsx64l;
     case PPC_TDESC_ISA205_PPR_DSCR_VSX:
       return tdesc_powerpc_isa205_ppr_dscr_vsx64l;
+    case PPC_TDESC_ISA207_VSX:
+      return tdesc_powerpc_isa207_vsx64l;
 #else
     case PPC_TDESC_BASE:
       return tdesc_powerpc_32l;
@@ -210,6 +212,8 @@  get_ipa_tdesc (int idx)
       return tdesc_powerpc_isa205_vsx32l;
     case PPC_TDESC_ISA205_PPR_DSCR_VSX:
       return tdesc_powerpc_isa205_ppr_dscr_vsx32l;
+    case PPC_TDESC_ISA207_VSX:
+      return tdesc_powerpc_isa207_vsx32l;
     case PPC_TDESC_E500:
       return tdesc_powerpc_e500l;
 #endif
@@ -239,6 +243,7 @@  initialize_low_tracepoint (void)
   init_registers_powerpc_isa205_altivec64l ();
   init_registers_powerpc_isa205_vsx64l ();
   init_registers_powerpc_isa205_ppr_dscr_vsx64l ();
+  init_registers_powerpc_isa207_vsx64l ();
 #else
   init_registers_powerpc_32l ();
   init_registers_powerpc_altivec32l ();
@@ -248,6 +253,7 @@  initialize_low_tracepoint (void)
   init_registers_powerpc_isa205_altivec32l ();
   init_registers_powerpc_isa205_vsx32l ();
   init_registers_powerpc_isa205_ppr_dscr_vsx32l ();
+  init_registers_powerpc_isa207_vsx32l ();
   init_registers_powerpc_e500l ();
 #endif
 }
diff --git a/gdb/gdbserver/linux-ppc-low.c b/gdb/gdbserver/linux-ppc-low.c
index e7eab37b6f..eeba724777 100644
--- a/gdb/gdbserver/linux-ppc-low.c
+++ b/gdb/gdbserver/linux-ppc-low.c
@@ -525,6 +525,26 @@  ppc_store_dscrregset (struct regcache *regcache, const void *buf)
   supply_register_by_name (regcache, "dscr", dscr);
 }
 
+/* Target Address Register regset fill function.  */
+
+static void
+ppc_fill_tarregset (struct regcache *regcache, void *buf)
+{
+  char *tar = (char *) buf;
+
+  collect_register_by_name (regcache, "tar", tar);
+}
+
+/* Target Address Register regset store function.  */
+
+static void
+ppc_store_tarregset (struct regcache *regcache, const void *buf)
+{
+  const char *tar = (const char *) buf;
+
+  supply_register_by_name (regcache, "tar", tar);
+}
+
 static void
 ppc_fill_vsxregset (struct regcache *regcache, void *buf)
 {
@@ -634,6 +654,8 @@  static struct regset_info ppc_regsets[] = {
      fetch them every time, but still fall back to PTRACE_PEEKUSER for the
      general registers.  Some kernels support these, but not the newer
      PPC_PTRACE_GETREGS.  */
+  { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PPC_TAR, 0, EXTENDED_REGS,
+    ppc_fill_tarregset, ppc_store_tarregset },
   { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PPC_PPR, 0, EXTENDED_REGS,
     ppc_fill_pprregset, ppc_store_pprregset },
   { PTRACE_GETREGSET, PTRACE_SETREGSET, NT_PPC_DSCR, 0, EXTENDED_REGS,
@@ -708,7 +730,14 @@  ppc_arch_setup (void)
   if ((ppc_hwcap2 & PPC_FEATURE2_DSCR)
       && ppc_check_regset (tid, NT_PPC_DSCR, PPC_LINUX_SIZEOF_DSCRREGSET)
       && ppc_check_regset (tid, NT_PPC_PPR, PPC_LINUX_SIZEOF_PPRREGSET))
-    features.ppr_dscr = true;
+    {
+      features.ppr_dscr = true;
+      if ((ppc_hwcap2 & PPC_FEATURE2_ARCH_2_07)
+	  && (ppc_hwcap2 & PPC_FEATURE2_TAR)
+	  && ppc_check_regset (tid, NT_PPC_TAR,
+			       PPC_LINUX_SIZEOF_TARREGSET))
+	features.isa207 = true;
+    }
 
   if (ppc_hwcap & PPC_FEATURE_CELL)
     features.cell = true;
@@ -765,6 +794,10 @@  ppc_arch_setup (void)
 	    regset->size = (features.ppr_dscr ?
 			    PPC_LINUX_SIZEOF_DSCRREGSET : 0);
 	    break;
+	  case NT_PPC_TAR:
+	    regset->size = (features.isa207 ?
+			    PPC_LINUX_SIZEOF_TARREGSET : 0);
+	    break;
 	  default:
 	    break;
 	  }
@@ -3146,6 +3179,8 @@  ppc_get_ipa_tdesc_idx (void)
     return PPC_TDESC_ISA205_VSX;
   if (tdesc == tdesc_powerpc_isa205_ppr_dscr_vsx64l)
     return PPC_TDESC_ISA205_PPR_DSCR_VSX;
+  if (tdesc == tdesc_powerpc_isa207_vsx64l)
+    return PPC_TDESC_ISA207_VSX;
 #endif
 
   if (tdesc == tdesc_powerpc_32l)
@@ -3164,6 +3199,8 @@  ppc_get_ipa_tdesc_idx (void)
     return PPC_TDESC_ISA205_VSX;
   if (tdesc == tdesc_powerpc_isa205_ppr_dscr_vsx32l)
     return PPC_TDESC_ISA205_PPR_DSCR_VSX;
+  if (tdesc == tdesc_powerpc_isa207_vsx32l)
+    return PPC_TDESC_ISA207_VSX;
   if (tdesc == tdesc_powerpc_e500l)
     return PPC_TDESC_E500;
 
@@ -3223,6 +3260,7 @@  initialize_low_arch (void)
   init_registers_powerpc_isa205_altivec32l ();
   init_registers_powerpc_isa205_vsx32l ();
   init_registers_powerpc_isa205_ppr_dscr_vsx32l ();
+  init_registers_powerpc_isa207_vsx32l ();
   init_registers_powerpc_e500l ();
 #if __powerpc64__
   init_registers_powerpc_64l ();
@@ -3233,6 +3271,7 @@  initialize_low_arch (void)
   init_registers_powerpc_isa205_altivec64l ();
   init_registers_powerpc_isa205_vsx64l ();
   init_registers_powerpc_isa205_ppr_dscr_vsx64l ();
+  init_registers_powerpc_isa207_vsx64l ();
 #endif
 
   initialize_regsets_info (&ppc_regsets_info);
diff --git a/gdb/gdbserver/linux-ppc-tdesc-init.h b/gdb/gdbserver/linux-ppc-tdesc-init.h
index c5c10c0670..29b8122886 100644
--- a/gdb/gdbserver/linux-ppc-tdesc-init.h
+++ b/gdb/gdbserver/linux-ppc-tdesc-init.h
@@ -30,6 +30,7 @@  enum ppc_linux_tdesc {
   PPC_TDESC_ISA205_ALTIVEC,
   PPC_TDESC_ISA205_VSX,
   PPC_TDESC_ISA205_PPR_DSCR_VSX,
+  PPC_TDESC_ISA207_VSX,
   PPC_TDESC_E500,
 };
 
@@ -59,6 +60,9 @@  void init_registers_powerpc_isa205_vsx32l (void);
 /* Defined in auto-generated file powerpc-isa205-ppr-dscr-vsx32l.c.  */
 void init_registers_powerpc_isa205_ppr_dscr_vsx32l (void);
 
+/* Defined in auto-generated file powerpc-isa207-vsx32l.c.  */
+void init_registers_powerpc_isa207_vsx32l (void);
+
 /* Defined in auto-generated file powerpc-e500l.c.  */
 void init_registers_powerpc_e500l (void);
 
@@ -90,4 +94,7 @@  void init_registers_powerpc_isa205_vsx64l (void);
 /* Defined in auto-generated file powerpc-isa205-ppr-dscr-vsx64l.c.  */
 void init_registers_powerpc_isa205_ppr_dscr_vsx64l (void);
 
+/* Defined in auto-generated file powerpc-isa207-vsx64l.c.  */
+void init_registers_powerpc_isa207_vsx64l (void);
+
 #endif
diff --git a/gdb/nat/ppc-linux.h b/gdb/nat/ppc-linux.h
index c2b8b0e80c..913a9e0bd8 100644
--- a/gdb/nat/ppc-linux.h
+++ b/gdb/nat/ppc-linux.h
@@ -54,6 +54,12 @@ 
 #ifndef PPC_FEATURE2_DSCR
 #define PPC_FEATURE2_DSCR 0x20000000
 #endif
+#ifndef PPC_FEATURE2_ARCH_2_07
+#define PPC_FEATURE2_ARCH_2_07 0x80000000
+#endif
+#ifndef PPC_FEATURE2_TAR
+#define PPC_FEATURE2_TAR 0x04000000
+#endif
 
 /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
    configure time check.  Some older glibc's (for instance 2.2.1)
@@ -85,6 +91,11 @@ 
 #define PTRACE_SETEVRREGS 21
 #endif
 
+/* Target Address Register.  */
+#ifndef NT_PPC_TAR
+#define NT_PPC_TAR 0x103
+#endif
+
 /* Program Priority Register.  */
 #ifndef NT_PPC_PPR
 #define NT_PPC_PPR 0x104
diff --git a/gdb/ppc-linux-nat.c b/gdb/ppc-linux-nat.c
index 27c73c217e..850d2292d5 100644
--- a/gdb/ppc-linux-nat.c
+++ b/gdb/ppc-linux-nat.c
@@ -657,6 +657,15 @@  fetch_register (struct regcache *regcache, int tid, int regno)
 		    &ppc32_linux_pprregset);
       return;
     }
+  else if (regno == PPC_TAR_REGNUM)
+    {
+      gdb_assert (tdep->ppc_tar_regnum != -1);
+
+      fetch_regset (regcache, tid, NT_PPC_TAR,
+		    PPC_LINUX_SIZEOF_TARREGSET,
+		    &ppc32_linux_tarregset);
+      return;
+    }
 
   if (regaddr == -1)
     {
@@ -858,6 +867,10 @@  fetch_ppc_registers (struct regcache *regcache, int tid)
     fetch_regset (regcache, tid, NT_PPC_DSCR,
 		  PPC_LINUX_SIZEOF_DSCRREGSET,
 		  &ppc32_linux_dscrregset);
+  if (tdep->ppc_tar_regnum != -1)
+    fetch_regset (regcache, tid, NT_PPC_TAR,
+		  PPC_LINUX_SIZEOF_TARREGSET,
+		  &ppc32_linux_tarregset);
 }
 
 /* Fetch registers from the child process.  Fetch all registers if
@@ -1056,6 +1069,15 @@  store_register (const struct regcache *regcache, int tid, int regno)
 		    &ppc32_linux_pprregset);
       return;
     }
+  else if (regno == PPC_TAR_REGNUM)
+    {
+      gdb_assert (tdep->ppc_tar_regnum != -1);
+
+      store_regset (regcache, tid, regno, NT_PPC_TAR,
+		    PPC_LINUX_SIZEOF_TARREGSET,
+		    &ppc32_linux_tarregset);
+      return;
+    }
 
   if (regaddr == -1)
     return;
@@ -1275,6 +1297,10 @@  store_ppc_registers (const struct regcache *regcache, int tid)
     store_regset (regcache, tid, -1, NT_PPC_DSCR,
 		  PPC_LINUX_SIZEOF_DSCRREGSET,
 		  &ppc32_linux_dscrregset);
+  if (tdep->ppc_tar_regnum != -1)
+    store_regset (regcache, tid, -1, NT_PPC_TAR,
+		  PPC_LINUX_SIZEOF_TARREGSET,
+		  &ppc32_linux_tarregset);
 }
 
 /* Fetch the AT_HWCAP entry from the aux vector.  */
@@ -2399,7 +2425,13 @@  ppc_linux_nat_target::read_description ()
   if ((hwcap2 & PPC_FEATURE2_DSCR)
       && check_regset (tid, NT_PPC_PPR, PPC_LINUX_SIZEOF_PPRREGSET)
       && check_regset (tid, NT_PPC_DSCR, PPC_LINUX_SIZEOF_DSCRREGSET))
-    features.ppr_dscr = true;
+    {
+      features.ppr_dscr = true;
+      if ((hwcap2 & PPC_FEATURE2_ARCH_2_07)
+	  && (hwcap2 & PPC_FEATURE2_TAR)
+	  && check_regset (tid, NT_PPC_TAR, PPC_LINUX_SIZEOF_TARREGSET))
+	features.isa207 = true;
+    }
 
   return ppc_linux_match_description (features);
 }
diff --git a/gdb/ppc-linux-tdep.c b/gdb/ppc-linux-tdep.c
index 13c00dec93..1d070dd4a4 100644
--- a/gdb/ppc-linux-tdep.c
+++ b/gdb/ppc-linux-tdep.c
@@ -72,6 +72,7 @@ 
 #include "features/rs6000/powerpc-isa205-altivec32l.c"
 #include "features/rs6000/powerpc-isa205-vsx32l.c"
 #include "features/rs6000/powerpc-isa205-ppr-dscr-vsx32l.c"
+#include "features/rs6000/powerpc-isa207-vsx32l.c"
 #include "features/rs6000/powerpc-64l.c"
 #include "features/rs6000/powerpc-altivec64l.c"
 #include "features/rs6000/powerpc-cell64l.c"
@@ -80,6 +81,7 @@ 
 #include "features/rs6000/powerpc-isa205-altivec64l.c"
 #include "features/rs6000/powerpc-isa205-vsx64l.c"
 #include "features/rs6000/powerpc-isa205-ppr-dscr-vsx64l.c"
+#include "features/rs6000/powerpc-isa207-vsx64l.c"
 #include "features/rs6000/powerpc-e500l.c"
 
 /* Shared library operations for PowerPC-Linux.  */
@@ -581,6 +583,22 @@  const struct regset ppc32_linux_dscrregset = {
   regcache_collect_regset
 };
 
+/* Target Address Register regmap.  */
+
+static const struct regcache_map_entry ppc32_regmap_tar[] =
+  {
+      { 1, PPC_TAR_REGNUM, 8 },
+      { 0 }
+  };
+
+/* Target Address Register regset.  */
+
+const struct regset ppc32_linux_tarregset = {
+  ppc32_regmap_tar,
+  regcache_supply_regset,
+  regcache_collect_regset
+};
+
 const struct regset *
 ppc_linux_gregset (int wordsize)
 {
@@ -621,6 +639,7 @@  ppc_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
   int have_vsx = tdep->ppc_vsr0_upper_regnum != -1;
   int have_ppr = tdep->ppc_ppr_regnum != -1;
   int have_dscr = tdep->ppc_dscr_regnum != -1;
+  int have_tar = tdep->ppc_tar_regnum != -1;
 
   if (tdep->wordsize == 4)
     cb (".reg", 48 * 4, 48 * 4, &ppc32_linux_gregset, NULL, cb_data);
@@ -650,6 +669,11 @@  ppc_linux_iterate_over_regset_sections (struct gdbarch *gdbarch,
 	PPC_LINUX_SIZEOF_DSCRREGSET,
 	&ppc32_linux_dscrregset, "Data Stream Control Register",
 	cb_data);
+
+  if (have_tar)
+    cb (".reg-ppc-tar", PPC_LINUX_SIZEOF_TARREGSET,
+	PPC_LINUX_SIZEOF_TARREGSET,
+	&ppc32_linux_tarregset, "Target Address Register", cb_data);
 }
 
 static void
@@ -1063,6 +1087,7 @@  ppc_linux_core_read_description (struct gdbarch *gdbarch,
   asection *section = bfd_get_section_by_name (abfd, ".reg");
   asection *ppr = bfd_get_section_by_name (abfd, ".reg-ppc-ppr");
   asection *dscr = bfd_get_section_by_name (abfd, ".reg-ppc-dscr");
+  asection *tar = bfd_get_section_by_name (abfd, ".reg-ppc-tar");
 
   if (! section)
     return NULL;
@@ -1096,7 +1121,11 @@  ppc_linux_core_read_description (struct gdbarch *gdbarch,
   features.isa205 = ppc_linux_has_isa205 (hwcap);
 
   if (ppr && dscr)
-    features.ppr_dscr = true;
+    {
+      features.ppr_dscr = true;
+      if (tar)
+	features.isa207 = true;
+    }
 
   return ppc_linux_match_description (features);
 }
@@ -1972,6 +2001,7 @@  _initialize_ppc_linux_tdep (void)
   initialize_tdesc_powerpc_isa205_altivec32l ();
   initialize_tdesc_powerpc_isa205_vsx32l ();
   initialize_tdesc_powerpc_isa205_ppr_dscr_vsx32l ();
+  initialize_tdesc_powerpc_isa207_vsx32l ();
   initialize_tdesc_powerpc_64l ();
   initialize_tdesc_powerpc_altivec64l ();
   initialize_tdesc_powerpc_cell64l ();
@@ -1980,5 +2010,6 @@  _initialize_ppc_linux_tdep (void)
   initialize_tdesc_powerpc_isa205_altivec64l ();
   initialize_tdesc_powerpc_isa205_vsx64l ();
   initialize_tdesc_powerpc_isa205_ppr_dscr_vsx64l ();
+  initialize_tdesc_powerpc_isa207_vsx64l ();
   initialize_tdesc_powerpc_e500l ();
 }
diff --git a/gdb/ppc-linux-tdep.h b/gdb/ppc-linux-tdep.h
index e8ae23137c..d6ddf69354 100644
--- a/gdb/ppc-linux-tdep.h
+++ b/gdb/ppc-linux-tdep.h
@@ -47,5 +47,6 @@  int ppc_linux_trap_reg_p (struct gdbarch *gdbarch);
 /* Additional register sets, defined in ppc-linux-tdep.c.  */
 extern const struct regset ppc32_linux_pprregset;
 extern const struct regset ppc32_linux_dscrregset;
+extern const struct regset ppc32_linux_tarregset;
 
 #endif /* PPC_LINUX_TDEP_H */
diff --git a/gdb/ppc-tdep.h b/gdb/ppc-tdep.h
index 86b5a3645d..e2b968177e 100644
--- a/gdb/ppc-tdep.h
+++ b/gdb/ppc-tdep.h
@@ -259,6 +259,9 @@  struct gdbarch_tdep
     /* Data Stream Control Register.  */
     int ppc_dscr_regnum;
 
+    /* Target Address Register.  */
+    int ppc_tar_regnum;
+
     /* Decimal 128 registers.  */
     int ppc_dl0_regnum;		/* First Decimal128 argument register pair.  */
 
@@ -317,6 +320,7 @@  enum {
   PPC_VSR31_UPPER_REGNUM = 171,
   PPC_PPR_REGNUM = 172,
   PPC_DSCR_REGNUM = 173,
+  PPC_TAR_REGNUM = 174,
   PPC_NUM_REGS
 };
 
diff --git a/gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat b/gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat
new file mode 100644
index 0000000000..2b6e0a9c8d
--- /dev/null
+++ b/gdb/regformats/rs6000/powerpc-isa207-vsx32l.dat
@@ -0,0 +1,147 @@ 
+# THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi :set ro:
+# Generated from: rs6000/powerpc-isa207-vsx32l.xml
+name:powerpc_isa207_vsx32l
+xmltarget:powerpc-isa207-vsx32l.xml
+expedite:r1,pc
+32:r0
+32:r1
+32:r2
+32:r3
+32:r4
+32:r5
+32:r6
+32:r7
+32:r8
+32:r9
+32:r10
+32:r11
+32:r12
+32:r13
+32:r14
+32:r15
+32:r16
+32:r17
+32:r18
+32:r19
+32:r20
+32:r21
+32:r22
+32:r23
+32:r24
+32:r25
+32:r26
+32:r27
+32:r28
+32:r29
+32:r30
+32:r31
+64:f0
+64:f1
+64:f2
+64:f3
+64:f4
+64:f5
+64:f6
+64:f7
+64:f8
+64:f9
+64:f10
+64:f11
+64:f12
+64:f13
+64:f14
+64:f15
+64:f16
+64:f17
+64:f18
+64:f19
+64:f20
+64:f21
+64:f22
+64:f23
+64:f24
+64:f25
+64:f26
+64:f27
+64:f28
+64:f29
+64:f30
+64:f31
+32:pc
+32:msr
+32:cr
+32:lr
+32:ctr
+32:xer
+64:fpscr
+32:orig_r3
+32:trap
+128:vr0
+128:vr1
+128:vr2
+128:vr3
+128:vr4
+128:vr5
+128:vr6
+128:vr7
+128:vr8
+128:vr9
+128:vr10
+128:vr11
+128:vr12
+128:vr13
+128:vr14
+128:vr15
+128:vr16
+128:vr17
+128:vr18
+128:vr19
+128:vr20
+128:vr21
+128:vr22
+128:vr23
+128:vr24
+128:vr25
+128:vr26
+128:vr27
+128:vr28
+128:vr29
+128:vr30
+128:vr31
+32:vscr
+32:vrsave
+64:vs0h
+64:vs1h
+64:vs2h
+64:vs3h
+64:vs4h
+64:vs5h
+64:vs6h
+64:vs7h
+64:vs8h
+64:vs9h
+64:vs10h
+64:vs11h
+64:vs12h
+64:vs13h
+64:vs14h
+64:vs15h
+64:vs16h
+64:vs17h
+64:vs18h
+64:vs19h
+64:vs20h
+64:vs21h
+64:vs22h
+64:vs23h
+64:vs24h
+64:vs25h
+64:vs26h
+64:vs27h
+64:vs28h
+64:vs29h
+64:vs30h
+64:vs31h
+64:ppr
+64:dscr
+64:tar
diff --git a/gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat b/gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat
new file mode 100644
index 0000000000..095bd7f2d3
--- /dev/null
+++ b/gdb/regformats/rs6000/powerpc-isa207-vsx64l.dat
@@ -0,0 +1,147 @@ 
+# THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi :set ro:
+# Generated from: rs6000/powerpc-isa207-vsx64l.xml
+name:powerpc_isa207_vsx64l
+xmltarget:powerpc-isa207-vsx64l.xml
+expedite:r1,pc
+64:r0
+64:r1
+64:r2
+64:r3
+64:r4
+64:r5
+64:r6
+64:r7
+64:r8
+64:r9
+64:r10
+64:r11
+64:r12
+64:r13
+64:r14
+64:r15
+64:r16
+64:r17
+64:r18
+64:r19
+64:r20
+64:r21
+64:r22
+64:r23
+64:r24
+64:r25
+64:r26
+64:r27
+64:r28
+64:r29
+64:r30
+64:r31
+64:f0
+64:f1
+64:f2
+64:f3
+64:f4
+64:f5
+64:f6
+64:f7
+64:f8
+64:f9
+64:f10
+64:f11
+64:f12
+64:f13
+64:f14
+64:f15
+64:f16
+64:f17
+64:f18
+64:f19
+64:f20
+64:f21
+64:f22
+64:f23
+64:f24
+64:f25
+64:f26
+64:f27
+64:f28
+64:f29
+64:f30
+64:f31
+64:pc
+64:msr
+32:cr
+64:lr
+64:ctr
+32:xer
+64:fpscr
+64:orig_r3
+64:trap
+128:vr0
+128:vr1
+128:vr2
+128:vr3
+128:vr4
+128:vr5
+128:vr6
+128:vr7
+128:vr8
+128:vr9
+128:vr10
+128:vr11
+128:vr12
+128:vr13
+128:vr14
+128:vr15
+128:vr16
+128:vr17
+128:vr18
+128:vr19
+128:vr20
+128:vr21
+128:vr22
+128:vr23
+128:vr24
+128:vr25
+128:vr26
+128:vr27
+128:vr28
+128:vr29
+128:vr30
+128:vr31
+32:vscr
+32:vrsave
+64:vs0h
+64:vs1h
+64:vs2h
+64:vs3h
+64:vs4h
+64:vs5h
+64:vs6h
+64:vs7h
+64:vs8h
+64:vs9h
+64:vs10h
+64:vs11h
+64:vs12h
+64:vs13h
+64:vs14h
+64:vs15h
+64:vs16h
+64:vs17h
+64:vs18h
+64:vs19h
+64:vs20h
+64:vs21h
+64:vs22h
+64:vs23h
+64:vs24h
+64:vs25h
+64:vs26h
+64:vs27h
+64:vs28h
+64:vs29h
+64:vs30h
+64:vs31h
+64:ppr
+64:dscr
+64:tar
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 8cb467dfa6..00145f2023 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -4645,6 +4645,10 @@  ppc_process_record_op31 (struct gdbarch *gdbarch, struct regcache *regcache,
 	case 256:		/* VRSAVE */
 	  record_full_arch_list_add_reg (regcache, tdep->ppc_vrsave_regnum);
 	  return 0;
+	case 815:		/* TAR */
+	  if (tdep->ppc_tar_regnum >= 0)
+	    record_full_arch_list_add_reg (regcache, tdep->ppc_tar_regnum);
+	  return 0;
 	case 896:
 	case 898:		/* PPR */
 	  if (tdep->ppc_ppr_regnum >= 0)
@@ -5813,6 +5817,7 @@  rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   enum powerpc_elf_abi elf_abi = POWERPC_ELF_AUTO;
   int have_fpu = 0, have_spe = 0, have_mq = 0, have_altivec = 0;
   int have_dfp = 0, have_vsx = 0, have_ppr = 0, have_dscr = 0;
+  int have_tar = 0;
   int tdesc_wordsize = -1;
   const struct target_desc *tdesc = info.target_desc;
   struct tdesc_arch_data *tdesc_data = NULL;
@@ -6133,6 +6138,25 @@  rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 	}
       else
 	have_dscr = 0;
+
+      /* Target Address Register.  */
+      feature = tdesc_find_feature (tdesc,
+				    "org.gnu.gdb.power.tar");
+      if (feature != NULL)
+	{
+	  valid_p = 1;
+	  valid_p &= tdesc_numbered_register (feature, tdesc_data,
+					      PPC_TAR_REGNUM, "tar");
+
+	  if (!valid_p)
+	    {
+	      tdesc_data_cleanup (tdesc_data);
+	      return NULL;
+	    }
+	  have_tar = 1;
+	}
+      else
+	have_tar = 0;
     }
 
   /* If we have a 64-bit binary on a 32-bit target, complain.  Also
@@ -6329,6 +6353,7 @@  rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   tdep->ppc_spefscr_regnum = have_spe ? PPC_SPE_FSCR_REGNUM : -1;
   tdep->ppc_ppr_regnum = have_ppr ? PPC_PPR_REGNUM : -1;
   tdep->ppc_dscr_regnum = have_dscr ? PPC_DSCR_REGNUM : -1;
+  tdep->ppc_tar_regnum = have_tar ? PPC_TAR_REGNUM : -1;
 
   set_gdbarch_pc_regnum (gdbarch, PPC_PC_REGNUM);
   set_gdbarch_sp_regnum (gdbarch, PPC_R0_REGNUM + 1);
diff --git a/gdb/testsuite/gdb.arch/powerpc-tar.c b/gdb/testsuite/gdb.arch/powerpc-tar.c
new file mode 100644
index 0000000000..79c252807b
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/powerpc-tar.c
@@ -0,0 +1,33 @@ 
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright (C) 2018 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+int main (void)
+{
+  void * target1 = &&target1_l;
+  void * target2 = &&target2_l;
+  asm volatile ("mtspr 815,%0" : : "r" (target1) : );
+
+  /* Branch always to TAR.  */
+  asm volatile ("bctar 20,0,0"); // marker
+
+ target2_l:
+  asm volatile ("nop"); // marker 2
+ target1_l:
+  asm volatile ("nop");
+
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.arch/powerpc-tar.exp b/gdb/testsuite/gdb.arch/powerpc-tar.exp
new file mode 100644
index 0000000000..98bdfd0f07
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/powerpc-tar.exp
@@ -0,0 +1,122 @@ 
+# Copyright (C) 2018 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# This file is part of the gdb testsuite.
+
+# Test access to special purpose register TAR (the Target Address
+# Register).  The test inferior writes to this register, we check that
+# GDB reads the same value, then write to the register the address of
+# another label.  We then let the inferior continue and execute a
+# branch to TAR and check that we stop at the address that we wrote to
+# register.
+
+if {![istarget "powerpc*-*-linux*"]} then {
+    verbose "Skipping PowerPC test for the TAR register."
+    return
+}
+
+standard_testfile .c
+
+if {[build_executable "compile" $binfile $srcfile {debug}] == -1} {
+    return -1
+}
+
+proc check_register_access { regname } {
+    global gdb_prompt
+
+    set test "$regname register access"
+    gdb_test_multiple "info reg $regname" "$test" {
+	-re "Invalid register.*\r\n$gdb_prompt $" {
+	    unsupported "$test"
+	    return 0
+	}
+	-re "\r\n$regname.*\r\n$gdb_prompt $" {
+	    pass "$test"
+	    return 1
+	}
+    }
+    return 0
+}
+
+proc tar_available {} {
+    global gdb_prompt
+    global inferior_exited_re
+
+    set test "TAR available to inferior"
+    gdb_test_multiple "continue" "" {
+	-re "Illegal instruction.*\r\n$gdb_prompt $" {
+	    unsupported "$test"
+	    return 0
+	}
+	-re "$inferior_exited_re normally.*$gdb_prompt $" {
+	    pass "$test"
+	    return 1
+	}
+    }
+    return 0
+}
+
+# Do one pass to check if TAR is usable, system
+# software can prevent it from being used.
+with_test_prefix "check TAR access" {
+    clean_restart $binfile
+
+    if ![runto_main] {
+	return
+    }
+
+    if {![check_register_access "tar"]} {
+	return
+    }
+
+    if {![tar_available]} {
+	return
+    }
+}
+
+# Now do the actual test
+clean_restart $binfile
+
+if ![runto_main] {
+    return
+}
+
+gdb_breakpoint [gdb_get_line_number "marker"]
+
+gdb_continue_to_breakpoint "continue to marker"
+
+set target1 [get_hexadecimal_valueof "target1" -1]
+set tar [get_hexadecimal_valueof "\$tar" -2]
+
+set test "TAR value from mtspr"
+
+if {${target1} == ${tar}} {
+    pass $test
+} else {
+    fail $test
+}
+
+set target2 [get_hexadecimal_valueof "target2" -1]
+
+if {$target2 == -1} {
+    fail "Could not get value of target2"
+    return
+}
+
+gdb_test_no_output "set \$tar = $target2" "set tar"
+
+gdb_breakpoint [gdb_get_line_number "marker 2"]
+
+gdb_continue_to_breakpoint "continue to new target address" ".*marker 2.*"