It will allow to initialize and to use vmss from outside.
Also move some useful macros to vmware_vmss.h file.
This is a preparation for the following commit to extend vmss
functionality.
Signed-off-by: Alexey Makhalov <amakhalov@vmware.com>
calculating phys_base and the mapped kernel offset for KASLR-enabled
kernels on SADUMP dumpfiles by using a technique developed by Takao
Indoh. Originally, the patchset included support for kdumps, but this
was dropped in v2, as it was deemed unnecessary due to the upstream
implementation of the "vmcoreinfo device" in QEMU. However, there
are still several reasons for which the vmcoreinfo device may not be
present at the time when a memory dump is taken from a VM, ranging
from a host running older QEMU/libvirt versions, to misconfigured VMs
or environments running Hypervisors that doesn't support this device.
This patchset generalizes the KASLR-related functions from sadump.c
and moves them to kaslr_helper.c, and makes kdump analysis fall back
to KASLR offset calculation if vmcoreinfo data is missing.
(slp@redhat.com)
when the VM was suspended. This patch enables crash to read the
relevant registers from each vCPU state for use as the starting hooks
by the "bt" command. Also, support for "help -[D|n]" to display
dumpfile contents, and "help -r" to display vCPU register sets has
been implemented. This is also the first step towards implementing
automatic KASLR offset calculations for VMSS dumpfiles.
(slp@redhat.com)
There may be holes in the memory address saved for PCI, etc. In such
cases, the memory dump is divided into regions. With this patch, up
to 3 memory regions are supported.
(hfu@vmware.com)
Similar to all other supported dumpfile types, it is invoked as:
$ crash vmlinux <vmname>.vmss
A "<vmname>.vmss" file created by the VMware vSphere ESX hypervisor
contains a header and the full memory image. A "<vmname>.vmss" file
created by the VMware Workstation facility only contains the header,
and must be accompanied by a companion "<vmname>.vmem" memory image
that is located in the same directory as the "<vmname>.vmss" file.
(hfu@vmware.com)
