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[Qemu-devel] [RFC][PATCH 07/14 v4] target-i386: add API to get dump info
From: |
Wen Congyang |
Subject: |
[Qemu-devel] [RFC][PATCH 07/14 v4] target-i386: add API to get dump info |
Date: |
Wed, 04 Jan 2012 14:10:04 +0800 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100413 Fedora/3.0.4-2.fc13 Thunderbird/3.0.4 |
Dump info contains: endian, class and architecture. The next
patch will use these information to create vmcore.
Signed-off-by: Wen Congyang <address@hidden>
---
cpu-all.h | 3 +++
dump.h | 10 ++++++++++
target-i386/arch-dump.c | 34 ++++++++++++++++++++++++++++++++++
3 files changed, 47 insertions(+), 0 deletions(-)
create mode 100644 dump.h
diff --git a/cpu-all.h b/cpu-all.h
index 684d7ef..199b756 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -23,6 +23,7 @@
#include "qemu-tls.h"
#include "cpu-common.h"
#include "memory_mapping.h"
+#include "dump.h"
/* some important defines:
*
@@ -583,11 +584,13 @@ int cpu_write_elf64_note(int fd, CPUState *env, int cpuid,
int cpu_write_elf32_note(int fd, CPUState *env, int cpuid,
target_phys_addr_t *offset);
int cpu_add_extra_memory_mapping(MemoryMappingList *list);
+int cpu_get_dump_info(ArchDumpInfo *info);
#else
#define cpu_get_memory_mapping(list, env)
#define cpu_write_elf64_note(fd, env, cpuid, offset) ({ -1; })
#define cpu_write_elf32_note(fd, env, cpuid, offset) ({ -1; })
#define cpu_add_extra_memory_mapping(list) ({ 0; })
+#define cpu_get_dump_info(info) ({ -1; })
#endif
#endif /* CPU_ALL_H */
diff --git a/dump.h b/dump.h
new file mode 100644
index 0000000..a36468b
--- /dev/null
+++ b/dump.h
@@ -0,0 +1,10 @@
+#ifndef DUMP_H
+#define DUMP_H
+
+typedef struct ArchDumpInfo {
+ int d_machine; /* Architecture */
+ int d_endian; /* ELFDATA2LSB or ELFDATA2MSB */
+ int d_class; /* ELFCLASS32 or ELFCLASS64 */
+} ArchDumpInfo;
+
+#endif
diff --git a/target-i386/arch-dump.c b/target-i386/arch-dump.c
index d96f6ae..92a53bc 100644
--- a/target-i386/arch-dump.c
+++ b/target-i386/arch-dump.c
@@ -15,6 +15,7 @@
#include "cpu.h"
#include "cpu-all.h"
+#include "dump.h"
#include "monitor.h"
/* PAE Paging or IA-32e Paging */
@@ -538,3 +539,36 @@ int cpu_add_extra_memory_mapping(MemoryMappingList *list)
#endif
return 0;
}
+
+int cpu_get_dump_info(ArchDumpInfo *info)
+{
+ bool lma = false;
+ RAMBlock *block;
+
+#ifdef TARGET_X86_64
+ lma = !!(first_cpu->hflags & HF_LMA_MASK);
+#endif
+
+ if (lma) {
+ info->d_machine = EM_X86_64;
+ } else {
+ info->d_machine = EM_386;
+ }
+ info->d_endian = ELFDATA2LSB;
+
+ if (lma) {
+ info->d_class = ELFCLASS64;
+ } else {
+ info->d_class = ELFCLASS32;
+ }
+
+ QLIST_FOREACH(block, &ram_list.blocks, next) {
+ if (!lma && (block->offset + block->length > UINT_MAX)) {
+ /* The memory size is greater than 4G */
+ info->d_class = ELFCLASS32;
+ break;
+ }
+ }
+
+ return 0;
+}
--
1.7.1
- [Qemu-devel] [RFC][PATCT 0/14 v4] dump memory when host pci device is used by guest, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 01/14 v4] Add API to create memory mapping list, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 02/14 v4] Add API to check whether a physical address is I/O address, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 03/14 v4] target-i386: implement cpu_get_memory_mapping(), Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 04/14 v4] Add API to get memory mapping, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 05/14 v4] target-i386: Add API to write elf notes to core file, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 06/14 v4] target-i386: Add API to add extra memory mapping, Wen Congyang, 2012/01/04
- [Qemu-devel] [RFC][PATCH 07/14 v4] target-i386: add API to get dump info,
Wen Congyang <=
- [Qemu-devel] [RFC][PATCH 08/14 v4] introduce a new monitor command 'dump' to dump guest's memory, Wen Congyang, 2012/01/04
[Qemu-devel] [RFC][PATCH 09/14 v4] run dump at the background, Wen Congyang, 2012/01/04
[Qemu-devel] [RFC][PATCH 10/14 v4] support detached dump, Wen Congyang, 2012/01/04
[Qemu-devel] [RFC][PATCH 11/14 v4] support to cancel the current dumping, Wen Congyang, 2012/01/04
[Qemu-devel] [RFC][PATCH 12/14 v4] support to set dumping speed, Wen Congyang, 2012/01/04
[Qemu-devel] [RFC][PATCH 13/14 v4] support to query dumping status, Wen Congyang, 2012/01/04