similar to: Re: gdbsx bug : fail on a breakpoint

Hi Mukesh, I was auditing uses of set_xen_guest_handle for correctness when I noticed that gdbsx (specifically tools/debugger/gdbsx/xg/xg_main.c) defines its own _domctl_hcall and associated helpers instead of using libxc. Is there any particular reason for that? Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

I run a centos6.2 guest VM in xen4.1.2, the id of centos-domU is 22. The info of dom0 is: 2.6.32-131.21.1.el6.xendom0.x86_64 #1 SMP Tue Dec 13 18:09:29 EST 2011 x86_64 x86_64 x86_64 GNU/Linux Centos-domU: 2.6.32-220.7.1.el6.x86_64 #1 SMP Wed Mar 7 00:52:02 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux At dom0, I went like this: [malei@xentest-4-1 Tue Apr 30 ~]$ sudo gdbsx -a 22 64 9999 Listening on

yujiageng734 wrote: > Hi, > > I am trying to use your gdbsx. But I don''t know how to make a 32bit > dom0 running on 64bit hypervisor. Can you explain this for me? I''m > extremely grateful to you. Hmm.. good question. I don''t know, it''s always done for me here. One option would be to just download OVM from edelivery.oracle.com,

Package: xen-utils-4.4 Version: 4.4.1-6 Severity: normal Dear Maintainer, The xen-utils-4.4 package in jessie is missing the gdbsx binary. This is useful to have when one wishes to debug Xen domains, and complicated to obtain if one does not have it ready. The same package on at least Ubuntu 14.04.1 LTS does contain this binary, in /usr/lib/xen-4.4/bin. However, if you have no objections I

Hi, kdb: to debug xen hypervisor, could also debug guests gdbsx: to debug PV/HVM linux guests The tree is : http://xenbits.xensource.com/ext/debuggers.hg See README-dbg. You''ll need to setup serial access for kdb. Thanks, Mukesh > > Hi Dan, > > I''m currently using your version of ssplitd as it is. I haven''t tried > kdb. For some reason I

From: Mukesh Rathor <mukesh.rathor@oracle.com> Use .ascii and .asciz to define xen feature string. Note, the PVH string must be in a single line (not multiple lines with \) to keep the assembler from putting null char after each string before \. Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> ---

MTRR is not available for PVH Dom0, so prevent cpuid from reporting it as an available feature. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Cc: George Dunlap <george.dunlap@eu.citrix.com> Cc: Mukesh Rathor <mukesh.rathor@oracle.com> Cc: Jan Beulich <JBeulich@suse.com> Cc: Keir Fraser <keir@xen.org> --- This should go in after Mukesh Dom0 series, or merged

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Signed-off-by: Kees Cook <keescook at chromium.org> Cc: Stefano Stabellini <stefano.stabellini at eu.citrix.com> Cc: Mukesh Rathor <mukesh.rathor at

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Signed-off-by: Kees Cook <keescook at chromium.org> Cc: Stefano Stabellini <stefano.stabellini at eu.citrix.com> Cc: Mukesh Rathor <mukesh.rathor at

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Signed-off-by: Kees Cook <keescook at chromium.org> Cc: Stefano Stabellini <stefano.stabellini at eu.citrix.com> Cc: Mukesh Rathor <mukesh.rathor at

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Signed-off-by: Kees Cook <keescook at chromium.org> Cc: Stefano Stabellini <stefano.stabellini at eu.citrix.com> Cc: Mukesh Rathor <mukesh.rathor at

Hi Ian/Stefano, So, I''m back to using pfn space from maxphysaddr below. Stefano, you suggested ballooning, but that would be just too slow. There are lot of pages to be mapped, 4k at a time during guest creation, and I am afraid ballooning and hypercalls to populate EPT will be pretty slow. OTOH, there is tons of address space available between max-physaddr and max pfn in dom0. Stefano,

I''ve followed the instructions in tools/debugger/gdb/README for building and using gdbserver-xen. While playing around with debugging a running guest or dissecting a core file, I''ve discovered that using it with a 32-bit PV domU fails but it works fine on the same guest if it''s booted with a 64-bit kernel. Is this a known limitation, or am I doing something incorrectly?

hi,all has anyone set the eflags.TF of vm? I want to introdeuce a VM into single-step by setting the eflags.TF of vm, then I disassemble the bytes at RIP to figure out what''s going on . I have set the trap flag ,but I didn''t achieve what I want. First, I only get hlt,mov, rdtsc, clts, in, out . Second, the VM always crash. does anyone have experience and give

On Sat, 9 Jun 2012 01:56:32 -0700 Cyclonus J <cyclonusj@gmail.com> wrote: > Hi Mukesh, > > I am currently dealing some device driver issues with Xen 4.1.2 and > would like to try out your great Xen debugger, but it looks like that > your Xen debugger only supports 4.1.0-rc3 and the last update is > almost one year ago. > > So my question is what would be your plan

On 3/25/2019 2:56 PM, YueHaibing wrote: > Fixes gcc '-Wunused-but-set-variable' warning: > > drivers/gpu/drm/virtio/virtgpu_ttm.c: In function 'virtio_gpu_init_mem_type': > drivers/gpu/drm/virtio/virtgpu_ttm.c:117:28: warning: > variable 'vgdev' set but not used [-Wunused-but-set-variable] > > drivers/gpu/drm/virtio/virtgpu_ttm.c: In function

On 3/25/2019 2:56 PM, YueHaibing wrote: > Fixes gcc '-Wunused-but-set-variable' warning: > > drivers/gpu/drm/virtio/virtgpu_ttm.c: In function 'virtio_gpu_init_mem_type': > drivers/gpu/drm/virtio/virtgpu_ttm.c:117:28: warning: > variable 'vgdev' set but not used [-Wunused-but-set-variable] > > drivers/gpu/drm/virtio/virtgpu_ttm.c: In function

Hi, (Assume VPID is available and enabled.) I''m trying to figure the TLB stuff with VPIDs. I understand from the poorly written chapter in the intel manual that if an HVM vcpu is running then only the TLBs tagged with the vcpu.VPID will be used. If xen or a PV guest is running, then VPID 0 TLBs are what will be used. Now I understand the hvm_asid_flush_vcpu upon new guest cr3, will

hello all, At my workplace, our colleague Mukesh has just completed a port of speex 1.2.1 to Palm OS. He had to write a couple of mathlib functions, but the trunk remains unchanged. It works quite well, I was wondering if there will be any interest in this port in the distribution. - farhan

Hi Guys, Thanks for the interest in the xen hypervisor debugger, prev known as kdb. Btw. I''m gonna rename it to xdb for xen-debugger or hdb for hypervisor debugger. KDB is confusing people with linux kdb debugger and I often get emails where people think they need to apply linux kdb patch also... Anyways, attaching patch that is cleaned up of my debug code that I accidentally left in