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[Qemu-devel] [PULL 11/40] ppc: Clean up error handling in ppc_set_compat
From: |
David Gibson |
Subject: |
[Qemu-devel] [PULL 11/40] ppc: Clean up error handling in ppc_set_compat() |
Date: |
Mon, 1 Feb 2016 13:30:39 +1100 |
Current ppc_set_compat() returns -1 for errors, and also (unconditionally)
reports an error message. The caller in h_client_architecture_support()
may then report it again using an outdated fprintf().
Clean this up by using the modern error reporting mechanisms. Also add
strerror(errno) to the error message.
Signed-off-by: David Gibson <address@hidden>
Reviewed-by: Thomas Huth <address@hidden>
Reviewed-by: Alexey Kardashevskiy <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>
---
hw/ppc/spapr.c | 4 +---
hw/ppc/spapr_hcall.c | 10 +++++-----
target-ppc/cpu.h | 2 +-
target-ppc/translate_init.c | 13 +++++++------
4 files changed, 14 insertions(+), 15 deletions(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 0ac6368..8862d18 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -1643,9 +1643,7 @@ static void spapr_cpu_init(sPAPRMachineState *spapr,
PowerPCCPU *cpu)
}
if (cpu->max_compat) {
- if (ppc_set_compat(cpu, cpu->max_compat) < 0) {
- exit(1);
- }
+ ppc_set_compat(cpu, cpu->max_compat, &error_fatal);
}
xics_cpu_setup(spapr->icp, cpu);
diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index fdd7fea..655c433 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -838,7 +838,7 @@ static target_ulong cas_get_option_vector(int vector,
target_ulong table)
typedef struct {
PowerPCCPU *cpu;
uint32_t cpu_version;
- int ret;
+ Error *err;
} SetCompatState;
static void do_set_compat(void *arg)
@@ -846,7 +846,7 @@ static void do_set_compat(void *arg)
SetCompatState *s = arg;
cpu_synchronize_state(CPU(s->cpu));
- s->ret = ppc_set_compat(s->cpu, s->cpu_version);
+ ppc_set_compat(s->cpu, s->cpu_version, &s->err);
}
#define get_compat_level(cpuver) ( \
@@ -931,13 +931,13 @@ static target_ulong
h_client_architecture_support(PowerPCCPU *cpu_,
SetCompatState s = {
.cpu = POWERPC_CPU(cs),
.cpu_version = cpu_version,
- .ret = 0
+ .err = NULL,
};
run_on_cpu(cs, do_set_compat, &s);
- if (s.ret < 0) {
- fprintf(stderr, "Unable to set compatibility mode\n");
+ if (s.err) {
+ error_report_err(s.err);
return H_HARDWARE;
}
}
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 9706000..b3b89e6 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1210,7 +1210,7 @@ void ppc_store_msr (CPUPPCState *env, target_ulong value);
void ppc_cpu_list (FILE *f, fprintf_function cpu_fprintf);
int ppc_get_compat_smt_threads(PowerPCCPU *cpu);
-int ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version);
+void ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version, Error **errp);
/* Time-base and decrementer management */
#ifndef NO_CPU_IO_DEFS
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 76d5da1..78c2811 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -9185,7 +9185,7 @@ int ppc_get_compat_smt_threads(PowerPCCPU *cpu)
return ret;
}
-int ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version)
+void ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version, Error **errp)
{
int ret = 0;
CPUPPCState *env = &cpu->env;
@@ -9207,12 +9207,13 @@ int ppc_set_compat(PowerPCCPU *cpu, uint32_t
cpu_version)
break;
}
- if (kvm_enabled() && kvmppc_set_compat(cpu, cpu->cpu_version) < 0) {
- error_report("Unable to set compatibility mode in KVM");
- ret = -1;
+ if (kvm_enabled()) {
+ ret = kvmppc_set_compat(cpu, cpu->cpu_version);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret,
+ "Unable to set CPU compatibility mode in KVM");
+ }
}
-
- return ret;
}
static gint ppc_cpu_compare_class_pvr(gconstpointer a, gconstpointer b)
--
2.5.0
- [Qemu-devel] [PULL 00/40] ppc-for-2.6 queue 20160201, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 04/40] macio: add dma_active to VMStateDescription, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 01/40] target-ppc: Use sensible POWER8/POWER8E versions, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 02/40] target-ppc: use cpu_write_xer() helper in cpu_post_load, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 14/40] pseries: Clean up error handling in spapr_vga_init(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 12/40] pseries: Clean up error handling of spapr_cpu_init(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 11/40] ppc: Clean up error handling in ppc_set_compat(),
David Gibson <=
- [Qemu-devel] [PULL 40/40] target-ppc: mcrfs should always update FEX/VX and only clear exception bits, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 16/40] pseries: Clean up error handling in xics_system_init(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 21/40] target-ppc: gdbstub: fix float registers for little-endian guests, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 08/40] spapr: Remove rtas_st_buffer_direct(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 07/40] spapr: Small fixes to rtas_ibm_get_system_parameter, remove rtas_st_buffer, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 20/40] target-ppc: rename and export maybe_bswap_register(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 13/40] pseries: Clean up error handling in spapr_validate_node_memory(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 22/40] target-ppc: gdbstub: introduce avr_need_swap(), David Gibson, 2016/01/31
- [Qemu-devel] [PULL 23/40] target-ppc: gdbstub: fix altivec registers for little-endian guests, David Gibson, 2016/01/31
- [Qemu-devel] [PULL 28/40] uninorth.c: add support for UniNorth kMacRISCPCIAddressSelect (0x48) register, David Gibson, 2016/01/31