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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>
This commit is contained in:
Anton Blanchard 2016-01-15 16:00:51 +01:00 committed by David Gibson
parent 95f5b540ab
commit 1438eff302
3 changed files with 71 additions and 3 deletions
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6
configure vendored
View File

@ -5702,20 +5702,20 @@ 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

44
gdb-xml/power-vsx.xml Normal file
View File

@ -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>

24
target-ppc/translate_init.c
View File

@ -8896,6 +8896,26 @@ 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;
@ -9001,6 +9021,10 @@ 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);