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target-ppc: dump-guest-memory support

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This patch add support for dumping guest memory using dump-guest-memory
monitor command.

Before patch:

(qemu) dump-guest-memory testcrash
this feature or command is not currently supported
(qemu)

After patch:

(qemu) dump-guest-memory testcrash
(qemu)

crash was able to read the file

crash> bt
PID: 0      TASK: c000000000c0d0d0  CPU: 0   COMMAND: "swapper/0"

 R0:  0000000028000084    R1:  c000000000cafa50    R2:  c000000000cb05b0
 R3:  0000000000000000    R4:  c000000000bc4cb0    R5:  0000000000000000
 R6:  001efe93b8000000    R7:  0000000000000000    R8:  0000000000000000
 R9:  b000000000001032    R10: 0000000000000001    R11: 0001eb2117e00d55
....
...

NOTE: Currently crash tools doesn't look at ELF notes in the dump on ppc64.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Aneesh Kumar K.V 2013-10-01 21:49:33 +05:30 • committed by Alexander Graf
parent bb6b684363
commit e62fbc54d4
5 changed files with 265 additions and 2 deletions
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3
include/elf.h
View file

@ -1359,6 +1359,9 @@ typedef struct elf64_shdr {
#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
#define NT_S390_TIMER 0x301 /* s390 timer register */
#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
/* Note header in a PT_NOTE section */