From: Anton Blanchard <anton@samba.org>
Date: Fri, 15 Jan 2016 16:00:51 +0100
Subject: [PATCH] target-ppc: gdbstub: Add VSX support
Add the XML and functions to get and set VSX registers.
Signed-off-by: Anton Blanchard <anton@samba.org>
(fixed little-endian guests)
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
(cherry picked from commit 1438eff302cbc6c85d477fd7181b8a9aeea2efd7)
---
configure | 6 +++---
gdb-xml/power-vsx.xml | 44 ++++++++++++++++++++++++++++++++++++++++++++
target-ppc/translate_init.c | 24 ++++++++++++++++++++++++
3 files changed, 71 insertions(+), 3 deletions(-)
create mode 100644 gdb-xml/power-vsx.xml
diff --git a/configure b/configure
index b9552fd..7811180 100755
--- a/configure
+++ b/configure
@@ -5617,20 +5617,20 @@ case "$target_name" in
ppc64)
TARGET_BASE_ARCH=ppc
TARGET_ABI_DIR=ppc
- gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
+ gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
;;
ppc64le)
TARGET_ARCH=ppc64
TARGET_BASE_ARCH=ppc
TARGET_ABI_DIR=ppc
- gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
+ gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
;;
ppc64abi32)
TARGET_ARCH=ppc64
TARGET_BASE_ARCH=ppc
TARGET_ABI_DIR=ppc
echo "TARGET_ABI32=y" >> $config_target_mak
- gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
+ gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
;;
sh4|sh4eb)
TARGET_ARCH=sh4
diff --git a/gdb-xml/power-vsx.xml b/gdb-xml/power-vsx.xml
new file mode 100644
index 0000000..fd290e9
--- /dev/null
+++ b/gdb-xml/power-vsx.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2008-2015 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. -->
+
+<!-- POWER7 VSX registers that do not overlap existing FP and VMX
+ registers. -->
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.power.vsx">
+ <reg name="vs0h" bitsize="64" type="uint64"/>
+ <reg name="vs1h" bitsize="64" type="uint64"/>
+ <reg name="vs2h" bitsize="64" type="uint64"/>
+ <reg name="vs3h" bitsize="64" type="uint64"/>
+ <reg name="vs4h" bitsize="64" type="uint64"/>
+ <reg name="vs5h" bitsize="64" type="uint64"/>
+ <reg name="vs6h" bitsize="64" type="uint64"/>
+ <reg name="vs7h" bitsize="64" type="uint64"/>
+ <reg name="vs8h" bitsize="64" type="uint64"/>
+ <reg name="vs9h" bitsize="64" type="uint64"/>
+ <reg name="vs10h" bitsize="64" type="uint64"/>
+ <reg name="vs11h" bitsize="64" type="uint64"/>
+ <reg name="vs12h" bitsize="64" type="uint64"/>
+ <reg name="vs13h" bitsize="64" type="uint64"/>
+ <reg name="vs14h" bitsize="64" type="uint64"/>
+ <reg name="vs15h" bitsize="64" type="uint64"/>
+ <reg name="vs16h" bitsize="64" type="uint64"/>
+ <reg name="vs17h" bitsize="64" type="uint64"/>
+ <reg name="vs18h" bitsize="64" type="uint64"/>
+ <reg name="vs19h" bitsize="64" type="uint64"/>
+ <reg name="vs20h" bitsize="64" type="uint64"/>
+ <reg name="vs21h" bitsize="64" type="uint64"/>
+ <reg name="vs22h" bitsize="64" type="uint64"/>
+ <reg name="vs23h" bitsize="64" type="uint64"/>
+ <reg name="vs24h" bitsize="64" type="uint64"/>
+ <reg name="vs25h" bitsize="64" type="uint64"/>
+ <reg name="vs26h" bitsize="64" type="uint64"/>
+ <reg name="vs27h" bitsize="64" type="uint64"/>
+ <reg name="vs28h" bitsize="64" type="uint64"/>
+ <reg name="vs29h" bitsize="64" type="uint64"/>
+ <reg name="vs30h" bitsize="64" type="uint64"/>
+ <reg name="vs31h" bitsize="64" type="uint64"/>
+</feature>
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 5ea168c..8069f3c 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8897,6 +8897,26 @@ static int gdb_set_spe_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
return 0;
}
+static int gdb_get_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+ if (n < 32) {
+ stq_p(mem_buf, env->vsr[n]);
+ ppc_maybe_bswap_register(env, mem_buf, 8);
+ return 8;
+ }
+ return 0;
+}
+
+static int gdb_set_vsx_reg(CPUPPCState *env, uint8_t *mem_buf, int n)
+{
+ if (n < 32) {
+ ppc_maybe_bswap_register(env, mem_buf, 8);
+ env->vsr[n] = ldq_p(mem_buf);
+ return 8;
+ }
+ return 0;
+}
+
static int ppc_fixup_cpu(PowerPCCPU *cpu)
{
CPUPPCState *env = &cpu->env;
@@ -9002,6 +9022,10 @@ static void ppc_cpu_realizefn(DeviceState *dev, Error **errp)
gdb_register_coprocessor(cs, gdb_get_spe_reg, gdb_set_spe_reg,
34, "power-spe.xml", 0);
}
+ if (pcc->insns_flags2 & PPC2_VSX) {
+ gdb_register_coprocessor(cs, gdb_get_vsx_reg, gdb_set_vsx_reg,
+ 32, "power-vsx.xml", 0);
+ }
qemu_init_vcpu(cs);