diff options
author | Ilya Leoshkevich <iii@linux.ibm.com> | 2023-03-14 11:18:13 +0100 |
---|---|---|
committer | Thomas Huth <thuth@redhat.com> | 2023-04-28 08:05:37 +0200 |
commit | 8afc43ea631ffe3de889b84028c3ce430047301d (patch) | |
tree | 2bfbd614e527932d5d1af4a395bbaac4787d518b | |
parent | cc5ee50fff9dbac0aac32cd892a7163c7babcca1 (diff) |
s390x/gdb: Split s390-virt.xml
Both TCG and KVM emulate ckc, cputm, last_break and prefix, and it's
quite useful to have them during debugging. Right now they are grouped
together with KVM-only pp, pfault_token, pfault_select and
pfault_compare in s390-virt.xml, and are not available when debugging
TCG-emulated code.
Move KVM-only registers into the new s390-virt-kvm.xml file. Advertise
s390-virt.xml always, and the new s390-virt-kvm.xml only for KVM.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230314101813.174874-1-iii@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
-rw-r--r-- | configs/targets/s390x-linux-user.mak | 2 | ||||
-rw-r--r-- | configs/targets/s390x-softmmu.mak | 2 | ||||
-rw-r--r-- | gdb-xml/s390-virt-kvm.xml | 14 | ||||
-rw-r--r-- | gdb-xml/s390-virt.xml | 4 | ||||
-rw-r--r-- | target/s390x/gdbstub.c | 65 |
5 files changed, 61 insertions, 26 deletions
diff --git a/configs/targets/s390x-linux-user.mak b/configs/targets/s390x-linux-user.mak index e2978248ed..24c04c8589 100644 --- a/configs/targets/s390x-linux-user.mak +++ b/configs/targets/s390x-linux-user.mak @@ -2,4 +2,4 @@ TARGET_ARCH=s390x TARGET_SYSTBL_ABI=common,64 TARGET_SYSTBL=syscall.tbl TARGET_BIG_ENDIAN=y -TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-gs.xml +TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml diff --git a/configs/targets/s390x-softmmu.mak b/configs/targets/s390x-softmmu.mak index 258b4cf358..70d2f9f0ba 100644 --- a/configs/targets/s390x-softmmu.mak +++ b/configs/targets/s390x-softmmu.mak @@ -1,4 +1,4 @@ TARGET_ARCH=s390x TARGET_BIG_ENDIAN=y TARGET_SUPPORTS_MTTCG=y -TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-gs.xml +TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml diff --git a/gdb-xml/s390-virt-kvm.xml b/gdb-xml/s390-virt-kvm.xml new file mode 100644 index 0000000000..a256eddaf5 --- /dev/null +++ b/gdb-xml/s390-virt-kvm.xml @@ -0,0 +1,14 @@ +<?xml version="1.0"?> +<!-- Copyright 2023 IBM Corp. + + This work is licensed under the terms of the GNU GPL, version 2 or + (at your option) any later version. See the COPYING file in the + top-level directory. --> + +<!DOCTYPE feature SYSTEM "gdb-target.dtd"> +<feature name="org.gnu.gdb.s390.virt.kvm"> + <reg name="pp" bitsize="64" type="uint64" group="system"/> + <reg name="pfault_token" bitsize="64" type="uint64" group="system"/> + <reg name="pfault_select" bitsize="64" type="uint64" group="system"/> + <reg name="pfault_compare" bitsize="64" type="uint64" group="system"/> +</feature> diff --git a/gdb-xml/s390-virt.xml b/gdb-xml/s390-virt.xml index e2e9a7ad3c..438eb68aab 100644 --- a/gdb-xml/s390-virt.xml +++ b/gdb-xml/s390-virt.xml @@ -11,8 +11,4 @@ <reg name="cputm" bitsize="64" type="uint64" group="system"/> <reg name="last_break" bitsize="64" type="code_ptr" group="system"/> <reg name="prefix" bitsize="64" type="data_ptr" group="system"/> - <reg name="pp" bitsize="64" type="uint64" group="system"/> - <reg name="pfault_token" bitsize="64" type="uint64" group="system"/> - <reg name="pfault_select" bitsize="64" type="uint64" group="system"/> - <reg name="pfault_compare" bitsize="64" type="uint64" group="system"/> </feature> diff --git a/target/s390x/gdbstub.c b/target/s390x/gdbstub.c index 0cb69395b4..6fbfd41bc8 100644 --- a/target/s390x/gdbstub.c +++ b/target/s390x/gdbstub.c @@ -206,12 +206,8 @@ static int cpu_write_c_reg(CPUS390XState *env, uint8_t *mem_buf, int n) #define S390_VIRT_CPUTM_REGNUM 1 #define S390_VIRT_BEA_REGNUM 2 #define S390_VIRT_PREFIX_REGNUM 3 -#define S390_VIRT_PP_REGNUM 4 -#define S390_VIRT_PFT_REGNUM 5 -#define S390_VIRT_PFS_REGNUM 6 -#define S390_VIRT_PFC_REGNUM 7 /* total number of registers in s390-virt.xml */ -#define S390_NUM_VIRT_REGS 8 +#define S390_NUM_VIRT_REGS 4 static int cpu_read_virt_reg(CPUS390XState *env, GByteArray *mem_buf, int n) { @@ -224,14 +220,6 @@ static int cpu_read_virt_reg(CPUS390XState *env, GByteArray *mem_buf, int n) return gdb_get_regl(mem_buf, env->gbea); case S390_VIRT_PREFIX_REGNUM: return gdb_get_regl(mem_buf, env->psa); - case S390_VIRT_PP_REGNUM: - return gdb_get_regl(mem_buf, env->pp); - case S390_VIRT_PFT_REGNUM: - return gdb_get_regl(mem_buf, env->pfault_token); - case S390_VIRT_PFS_REGNUM: - return gdb_get_regl(mem_buf, env->pfault_select); - case S390_VIRT_PFC_REGNUM: - return gdb_get_regl(mem_buf, env->pfault_compare); default: return 0; } @@ -256,19 +244,51 @@ static int cpu_write_virt_reg(CPUS390XState *env, uint8_t *mem_buf, int n) env->psa = ldtul_p(mem_buf); cpu_synchronize_post_init(env_cpu(env)); return 8; - case S390_VIRT_PP_REGNUM: + default: + return 0; + } +} + +/* the values represent the positions in s390-virt-kvm.xml */ +#define S390_VIRT_KVM_PP_REGNUM 0 +#define S390_VIRT_KVM_PFT_REGNUM 1 +#define S390_VIRT_KVM_PFS_REGNUM 2 +#define S390_VIRT_KVM_PFC_REGNUM 3 +/* total number of registers in s390-virt-kvm.xml */ +#define S390_NUM_VIRT_KVM_REGS 4 + +static int cpu_read_virt_kvm_reg(CPUS390XState *env, GByteArray *mem_buf, int n) +{ + switch (n) { + case S390_VIRT_KVM_PP_REGNUM: + return gdb_get_regl(mem_buf, env->pp); + case S390_VIRT_KVM_PFT_REGNUM: + return gdb_get_regl(mem_buf, env->pfault_token); + case S390_VIRT_KVM_PFS_REGNUM: + return gdb_get_regl(mem_buf, env->pfault_select); + case S390_VIRT_KVM_PFC_REGNUM: + return gdb_get_regl(mem_buf, env->pfault_compare); + default: + return 0; + } +} + +static int cpu_write_virt_kvm_reg(CPUS390XState *env, uint8_t *mem_buf, int n) +{ + switch (n) { + case S390_VIRT_KVM_PP_REGNUM: env->pp = ldtul_p(mem_buf); cpu_synchronize_post_init(env_cpu(env)); return 8; - case S390_VIRT_PFT_REGNUM: + case S390_VIRT_KVM_PFT_REGNUM: env->pfault_token = ldtul_p(mem_buf); cpu_synchronize_post_init(env_cpu(env)); return 8; - case S390_VIRT_PFS_REGNUM: + case S390_VIRT_KVM_PFS_REGNUM: env->pfault_select = ldtul_p(mem_buf); cpu_synchronize_post_init(env_cpu(env)); return 8; - case S390_VIRT_PFC_REGNUM: + case S390_VIRT_KVM_PFC_REGNUM: env->pfault_compare = ldtul_p(mem_buf); cpu_synchronize_post_init(env_cpu(env)); return 8; @@ -321,10 +341,15 @@ void s390_cpu_gdb_init(CPUState *cs) cpu_write_c_reg, S390_NUM_C_REGS, "s390-cr.xml", 0); + gdb_register_coprocessor(cs, cpu_read_virt_reg, + cpu_write_virt_reg, + S390_NUM_VIRT_REGS, "s390-virt.xml", 0); + if (kvm_enabled()) { - gdb_register_coprocessor(cs, cpu_read_virt_reg, - cpu_write_virt_reg, - S390_NUM_VIRT_REGS, "s390-virt.xml", 0); + gdb_register_coprocessor(cs, cpu_read_virt_kvm_reg, + cpu_write_virt_kvm_reg, + S390_NUM_VIRT_KVM_REGS, "s390-virt-kvm.xml", + 0); } #endif } |