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[Qemu-devel] [PATCH qom-cpu v2 3/7] cpu: Turn cpu_paging_enabled() into
From: |
Andreas Färber |
Subject: |
[Qemu-devel] [PATCH qom-cpu v2 3/7] cpu: Turn cpu_paging_enabled() into a CPUState hook |
Date: |
Tue, 28 May 2013 17:05:22 +0200 |
Signed-off-by: Andreas Färber <address@hidden>
---
include/qom/cpu.h | 10 ++++++++++
include/sysemu/memory_mapping.h | 1 -
memory_mapping-stub.c | 6 ------
memory_mapping.c | 2 +-
qom/cpu.c | 13 +++++++++++++
target-i386/arch_memory_mapping.c | 6 +-----
target-i386/cpu.c | 11 +++++++++--
7 files changed, 34 insertions(+), 15 deletions(-)
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 7cd9442..cf5fec2 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -48,6 +48,7 @@ typedef struct CPUState CPUState;
* @reset: Callback to reset the #CPUState to its initial state.
* @do_interrupt: Callback for interrupt handling.
* @get_arch_id: Callback for getting architecture-dependent CPU ID.
+ * @get_paging_enabled: Callback for inquiring whether paging is enabled.
* @vmsd: State description for migration.
*
* Represents a CPU family or model.
@@ -62,6 +63,7 @@ typedef struct CPUClass {
void (*reset)(CPUState *cpu);
void (*do_interrupt)(CPUState *cpu);
int64_t (*get_arch_id)(CPUState *cpu);
+ bool (*get_paging_enabled)(CPUState *cpu);
const struct VMStateDescription *vmsd;
int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu,
@@ -138,6 +140,14 @@ struct CPUState {
};
/**
+ * cpu_paging_enabled:
+ * @cpu: The CPU whose state is to be inspected.
+ *
+ * Returns: %true if paging is enabled, %false otherwise.
+ */
+bool cpu_paging_enabled(CPUState *cpu);
+
+/**
* cpu_write_elf64_note:
* @f: pointer to a function that writes memory to a file
* @cpu: The CPU whose memory is to be dumped
diff --git a/include/sysemu/memory_mapping.h b/include/sysemu/memory_mapping.h
index 1256125..6f01524 100644
--- a/include/sysemu/memory_mapping.h
+++ b/include/sysemu/memory_mapping.h
@@ -31,7 +31,6 @@ typedef struct MemoryMappingList {
} MemoryMappingList;
int cpu_get_memory_mapping(MemoryMappingList *list, CPUArchState *env);
-bool cpu_paging_enabled(CPUArchState *env);
/*
* add or merge the memory region [phys_addr, phys_addr + length) into the
diff --git a/memory_mapping-stub.c b/memory_mapping-stub.c
index 24d5d67..6c0dfeb 100644
--- a/memory_mapping-stub.c
+++ b/memory_mapping-stub.c
@@ -25,9 +25,3 @@ int cpu_get_memory_mapping(MemoryMappingList *list,
{
return -1;
}
-
-bool cpu_paging_enabled(CPUArchState *env)
-{
- return true;
-}
-
diff --git a/memory_mapping.c b/memory_mapping.c
index ff45b3a..0790aac 100644
--- a/memory_mapping.c
+++ b/memory_mapping.c
@@ -170,7 +170,7 @@ static CPUArchState *find_paging_enabled_cpu(CPUArchState
*start_cpu)
CPUArchState *env;
for (env = start_cpu; env != NULL; env = env->next_cpu) {
- if (cpu_paging_enabled(env)) {
+ if (cpu_paging_enabled(ENV_GET_CPU(env))) {
return env;
}
}
diff --git a/qom/cpu.c b/qom/cpu.c
index 04aefbb..ea7e676 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -50,6 +50,18 @@ bool cpu_exists(int64_t id)
return data.found;
}
+bool cpu_paging_enabled(CPUState *cpu)
+{
+ CPUClass *cc = CPU_GET_CLASS(cpu);
+
+ return cc->get_paging_enabled(cpu);
+}
+
+static bool cpu_common_get_paging_enabled(CPUState *cpu)
+{
+ return true;
+}
+
/* CPU hot-plug notifiers */
static NotifierList cpu_added_notifiers =
NOTIFIER_LIST_INITIALIZER(cpu_add_notifiers);
@@ -176,6 +188,7 @@ static void cpu_class_init(ObjectClass *klass, void *data)
k->class_by_name = cpu_common_class_by_name;
k->reset = cpu_common_reset;
k->get_arch_id = cpu_common_get_arch_id;
+ k->get_paging_enabled = cpu_common_get_paging_enabled;
k->write_elf32_qemunote = cpu_common_write_elf32_qemunote;
k->write_elf32_note = cpu_common_write_elf32_note;
k->write_elf64_qemunote = cpu_common_write_elf64_qemunote;
diff --git a/target-i386/arch_memory_mapping.c
b/target-i386/arch_memory_mapping.c
index a2eb7e7..5102356 100644
--- a/target-i386/arch_memory_mapping.c
+++ b/target-i386/arch_memory_mapping.c
@@ -239,7 +239,7 @@ static void walk_pml4e(MemoryMappingList *list,
int cpu_get_memory_mapping(MemoryMappingList *list, CPUArchState *env)
{
- if (!cpu_paging_enabled(env)) {
+ if (!cpu_paging_enabled(ENV_GET_CPU(env))) {
/* paging is disabled */
return 0;
}
@@ -271,7 +271,3 @@ int cpu_get_memory_mapping(MemoryMappingList *list,
CPUArchState *env)
return 0;
}
-bool cpu_paging_enabled(CPUArchState *env)
-{
- return env->cr[0] & CR0_PG_MASK;
-}
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 1a501d9..7364e3b 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -2505,6 +2505,13 @@ static int64_t x86_cpu_get_arch_id(CPUState *cs)
return env->cpuid_apic_id;
}
+static bool x86_cpu_get_paging_enabled(CPUState *cs)
+{
+ X86CPU *cpu = X86_CPU(cs);
+
+ return cpu->env.cr[0] & CR0_PG_MASK;
+}
+
static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
{
X86CPUClass *xcc = X86_CPU_CLASS(oc);
@@ -2519,6 +2526,8 @@ static void x86_cpu_common_class_init(ObjectClass *oc,
void *data)
cc->reset = x86_cpu_reset;
cc->do_interrupt = x86_cpu_do_interrupt;
+ cc->get_arch_id = x86_cpu_get_arch_id;
+ cc->get_paging_enabled = x86_cpu_get_paging_enabled;
#ifndef CONFIG_USER_ONLY
cc->write_elf64_note = x86_cpu_write_elf64_note;
cc->write_elf64_qemunote = x86_cpu_write_elf64_qemunote;
@@ -2526,8 +2535,6 @@ static void x86_cpu_common_class_init(ObjectClass *oc,
void *data)
cc->write_elf32_qemunote = x86_cpu_write_elf32_qemunote;
#endif
cpu_class_set_vmsd(cc, &vmstate_x86_cpu);
-
- cc->get_arch_id = x86_cpu_get_arch_id;
}
static const TypeInfo x86_cpu_type_info = {
--
1.8.1.4
- [Qemu-devel] [PATCH qom-cpu v2 0/7] dump: Build cleanups redone, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 1/7] target-i386: Fix mask of pte index in memory mapping, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 2/7] dump: Move stubs into libqemustub.a, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 6/7] memory_mapping: Drop qemu_get_memory_mapping() stub, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 3/7] cpu: Turn cpu_paging_enabled() into a CPUState hook,
Andreas Färber <=
- [Qemu-devel] [PATCH qom-cpu v2 4/7] memory_mapping: Move MemoryMappingList typedef to qemu/typedefs.h, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 5/7] cpu: Turn cpu_get_memory_mapping() into a CPUState hook, Andreas Färber, 2013/05/28
- [Qemu-devel] [PATCH qom-cpu v2 7/7] dump: Unconditionally compile, Andreas Färber, 2013/05/28