search for: xenbus_dev

So far only the watch path was checked to be zero terminated, while the watch token was merely assumed to be. Additionally, none of the three associated memory allocations got checked for being successful. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/drivers/xen/xenbus/xenbus_dev.c +++ b/drivers/xen/xenbus/xenbus_dev.c @@ -269,18 +269,24 @@ static ssize_t xenbus_dev_write(struct f goto out; } token++; + if (memchr(token, 0, u->u.msg.len - (token - path)) == NULL) { + rc = -EILSEQ; + goto out; + } if (msg_type == XS_WATCH) { watch = kzalloc(sizeof...

Hi guys, I updated the latest xen hg repository, and found it failed to compile, because of an missing head file xenbus_dev.h. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...enbus/xenbus_xs.c. When a callback occurs, an in-kernel function is invoked, which then reconstructs a response in the format expected by userspace, and sends this response through /proc/xen/xenbus. It was necessary to add some supporting infrastructure to linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_dev.c, such as an additional mutex to protect the response queue and a list of active watches associated with each connection. Signed-off-by: Michael LeMay <mdlemay@epoch.ncsc.mil> --- linux-2.6-xen-sparse/drivers/xen/xenbus/xenbus_dev.c | 114 +++++++++++++++++++ 1 file changed, 114 insert...

So far only the watch path was checked to be zero terminated, while the watch token was merely assumed to be. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- drivers/xen/xenbus/xenbus_dev_frontend.c | 4 ++++ 1 file changed, 4 insertions(+) --- 3.3-rc1/drivers/xen/xenbus/xenbus_dev_frontend.c +++ 3.3-rc1-xenbus-dev-write-watch/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -369,6 +369,10 @@ static int xenbus_write_watch(unsigned m goto out; } token++; + if (memchr(token, 0,...

...0000 +0100 @@ -629,7 +629,7 @@ static unsigned int vtpm_op_poll(struct return flags; } -static struct file_operations vtpm_ops = { +static const struct file_operations vtpm_ops = { .owner = THIS_MODULE, .llseek = no_llseek, .open = vtpm_op_open, Index: head-2007-02-27/drivers/xen/xenbus/xenbus_dev.c =================================================================== --- head-2007-02-27.orig/drivers/xen/xenbus/xenbus_dev.c 2007-03-05 10:00:18.000000000 +0100 +++ head-2007-02-27/drivers/xen/xenbus/xenbus_dev.c 2007-02-27 16:27:37.000000000 +0100 @@ -342,7 +342,7 @@ static unsigned int xenbus_d...

Hi, xenstore fails to build: init-xenstore-domain.c:11:32: error: xen/sys/xenbus_dev.h: No such file or directory init-xenstore-domain.c: In function ''build'': init-xenstore-domain.c:37: error: ''IOCTL_XENBUS_BACKEND_SETUP'' undeclared (first use in this function) Christoph -- ---to satisfy European Law for business letters: Advanced Micro Devi...

Hi, Anybody (Christian?) could please tell me if we can get the support for registering watch with /proc/xen/xenbus? (..OK, I know that we will change it this /proc stuff to a device soon) So far we can only do read/write/rm. I really miss the xen watch feature. Many thanks, Hieu _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

...e the opportunity to cause the watch_fired to run (and briefly grab the reply_mutex for itself) before the fake "OK" message is sent. Below, I''ve included a putative patch for pre-3.3 xenfs that fixes this problem. (It looks like the patch would also apply cleanly to 3.3-onwards xenbus_dev_frontend.c, but I haven''t tried.) Any comments about whether this is a reasonable approach? A cursory glance at drivers/xen/xenbus/xenbus_dev.c suggests that it suffers from the same problem. Although I haven''t haven''t tested this, I''d expect that it requires a...

...erspace (they obviously do for drivers). In some preliminary debugging of this, there are two aspects of the failure: not sending the watch to xenstore and not handling watch events for userspace watches. The former can be easily fixed by adding the missing ''case XS_WATCH:'' to xenbus_dev_write() in xenbus_dev.c. The latter is more difficult to fix. So before I tackle it, I wanted to see if anyone else was already working on a solution or just had some thoughts to share on possible solutions. Joseph Cihula (Linux) Software Security Architect Open Source Technology Center Intel Cor...

Hi, i read the xenpm wiki page, but i cannot use the "p-states". xenpm shows: xenpm cpu id : 0 total C-states : 2 idle time(ms) : 1776034 C0 : transition [00000000000000000000] residency [00000000000000000000 ms] C1 : transition [00000000000000260278] residency

...proc_entry'' drivers/built-in.o: In function `xenbus_probe_init'': xenbus_probe.c:(.init.text+0x663f): undefined reference to `create_xen_proc_entry'' xenbus_probe.c:(.init.text+0x6664): undefined reference to `create_xen_proc_entry'' drivers/built-in.o: In function `xenbus_dev_init'': xenbus_dev.c:(.init.text+0x66cc): undefined reference to `create_xen_proc_entry'' make: *** [.tmp_vmlinux1] Error 1 COMPILE CONFIG # # Automatically generated make config: don''t edit # Linux kernel version: 2.6.12.6.5-xen # Mon Dec 5 19:47:12 2005 # CONFIG_XEN=y C...

Changes from v3: - mini-os configuration files moved into stubdom/ - mini-os extra console support now a config option - Fewer #ifdefs - grant table setup uses hypercall bounce - Xenstore stub domain syslog support re-enabled Changes from v2: - configuration support added to mini-os build system - add mini-os support for conditionally compiling frontends, xenbus -

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual