Hi, Jan Kiszka Do you have any time to review this patchset? Thanks Wen Congyang
At 01/04/2012 01:44 PM, Wen Congyang Wrote: > Hi, all > > 'virsh dump' can not work when host pci device is used by guest. We have > discussed this issue here: > http://lists.nongnu.org/archive/html/qemu-devel/2011-10/msg00736.html > > We have determined to introduce a new command dump to dump memory. The core > file's format can be elf. > > Note: > 1. The guest should be x86 or x86_64. The other arch is not supported. > 2. If you use old gdb, gdb may crash. I use gdb-7.3.1, and it does not crash. > 3. If the OS is in the second kernel, gdb may not work well, and crash can > work by specifying '--machdep phys_addr=xxx' in the command line. The > reason is that the second kernel will update the page table, and we can > not get the page table for the first kernel. > 4. If the guest OS is 32 bit and the memory size is larger than 4G, the vmcore > is elf64 format. You should use the gdb which is built with > --enable-64-bit-bfd. > > Change from v3 to v4: > 1. support it to run asynchronously > 2. add API to cancel dumping and query dumping progress > 3. add API to control dumping speed > 4. auto cancel dumping when the user resumes vm, and the status is failed. > > Change from v2 to v3: > 1. address Jan Kiszka's comment > > Changes from v1 to v2: > 1. fix virt addr in the vmcore. > > Wen Congyang (14): > Add API to create memory mapping list > Add API to check whether a physical address is I/O address > target-i386: implement cpu_get_memory_mapping() > Add API to get memory mapping > target-i386: Add API to write elf notes to core file > target-i386: Add API to add extra memory mapping > target-i386: add API to get dump info > introduce a new monitor command 'dump' to dump guest's memory > run dump at the background > support detached dump > support to cancel the current dumping > support to set dumping speed > support to query dumping status > auto cancel dumping after vm state is changed to run > > Makefile.target | 11 +- > cpu-all.h | 18 + > cpu-common.h | 2 + > dump.c | 796 > +++++++++++++++++++++++++++++++++++++++++++++++ > dump.h | 14 + > exec.c | 20 ++ > hmp-commands.hx | 47 +++ > hmp.c | 24 ++ > hmp.h | 3 + > memory_mapping.c | 185 +++++++++++ > memory_mapping.h | 39 +++ > monitor.c | 10 + > qapi-schema.json | 54 ++++ > qmp-commands.hx | 117 +++++++ > target-i386/arch-dump.c | 574 ++++++++++++++++++++++++++++++++++ > 15 files changed, 1909 insertions(+), 5 deletions(-) > create mode 100644 dump.c > create mode 100644 dump.h > create mode 100644 memory_mapping.c > create mode 100644 memory_mapping.h > create mode 100644 target-i386/arch-dump.c > >
