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[Qemu-devel] [PATCH v2 1/6] target-arm: don't set cpu do_interrupt handl
From: |
Rob Herring |
Subject: |
[Qemu-devel] [PATCH v2 1/6] target-arm: don't set cpu do_interrupt handler for user mode emulation |
Date: |
Thu, 22 May 2014 21:30:04 -0500 |
From: Rob Herring <address@hidden>
In preparation to add system mode only calls to
aarch64_cpu_do_interrupt, compile it for system mode only and don't set
the do_interrupt callback for user mode emulation. User mode emulation
should never get interrupts and thus should not have a exception handler
function. Do the same change from AArch32 to keep them aligned.
Signed-off-by: Rob Herring <address@hidden>
---
v2:
- Only set .do_interrupt function for system emulation on A32 and A64.
target-arm/cpu.c | 2 +-
target-arm/cpu64.c | 2 ++
target-arm/helper-a64.c | 3 +++
target-arm/helper.c | 5 -----
4 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 589f34d..f46b375 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -1038,7 +1038,6 @@ static void arm_cpu_class_init(ObjectClass *oc, void
*data)
cc->class_by_name = arm_cpu_class_by_name;
cc->has_work = arm_cpu_has_work;
- cc->do_interrupt = arm_cpu_do_interrupt;
cc->dump_state = arm_cpu_dump_state;
cc->set_pc = arm_cpu_set_pc;
cc->gdb_read_register = arm_cpu_gdb_read_register;
@@ -1046,6 +1045,7 @@ static void arm_cpu_class_init(ObjectClass *oc, void
*data)
#ifdef CONFIG_USER_ONLY
cc->handle_mmu_fault = arm_cpu_handle_mmu_fault;
#else
+ cc->do_interrupt = arm_cpu_do_interrupt;
cc->get_phys_page_debug = arm_cpu_get_phys_page_debug;
cc->vmsd = &vmstate_arm_cpu;
#endif
diff --git a/target-arm/cpu64.c b/target-arm/cpu64.c
index 8daa622..b155579 100644
--- a/target-arm/cpu64.c
+++ b/target-arm/cpu64.c
@@ -187,7 +187,9 @@ static void aarch64_cpu_class_init(ObjectClass *oc, void
*data)
{
CPUClass *cc = CPU_CLASS(oc);
+#if !defined(CONFIG_USER_ONLY)
cc->do_interrupt = aarch64_cpu_do_interrupt;
+#endif
cc->set_pc = aarch64_cpu_set_pc;
cc->gdb_read_register = aarch64_cpu_gdb_read_register;
cc->gdb_write_register = aarch64_cpu_gdb_write_register;
diff --git a/target-arm/helper-a64.c b/target-arm/helper-a64.c
index bf921cc..84411b4 100644
--- a/target-arm/helper-a64.c
+++ b/target-arm/helper-a64.c
@@ -438,6 +438,8 @@ float32 HELPER(fcvtx_f64_to_f32)(float64 a, CPUARMState
*env)
return r;
}
+#if !defined(CONFIG_USER_ONLY)
+
/* Handle a CPU exception. */
void aarch64_cpu_do_interrupt(CPUState *cs)
{
@@ -512,3 +514,4 @@ void aarch64_cpu_do_interrupt(CPUState *cs)
env->pc = addr;
cs->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
+#endif
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 417161e..1307473 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -3004,11 +3004,6 @@ uint32_t HELPER(rbit)(uint32_t x)
#if defined(CONFIG_USER_ONLY)
-void arm_cpu_do_interrupt(CPUState *cs)
-{
- cs->exception_index = -1;
-}
-
int arm_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
int mmu_idx)
{
--
1.9.1
- [Qemu-devel] [PATCH v2 0/6] ARM: add PSCI emulation support, Rob Herring, 2014/05/22
- [Qemu-devel] [PATCH v2 4/6] target-arm: add emulation of PSCI calls for system emulation, Rob Herring, 2014/05/22
- [Qemu-devel] [PATCH v2 1/6] target-arm: don't set cpu do_interrupt handler for user mode emulation,
Rob Herring <=
- [Qemu-devel] [PATCH v2 2/6] target-arm: add powered off cpu state, Rob Herring, 2014/05/22
- [Qemu-devel] [PATCH v2 3/6] target-arm: add hvc and smc exception emulation handling infrastructure, Rob Herring, 2014/05/22
- [Qemu-devel] [PATCH v2 5/6] arm/virt: enable PSCI emulation support for system emulation, Rob Herring, 2014/05/22
- [Qemu-devel] [PATCH v2 6/6] arm/highbank: enable PSCI emulation support, Rob Herring, 2014/05/22