This function allows to obtain a per-cpu variable, either of the current
or an explicitly specified CPU.
Note: sparc64 version is untested.
CC: "David S. Miller"
CC: sparcli...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py
Provide an internal helper with container_of semantics. As type lookups
are very slow in gdb-python and we need a type "long" for this, cache
the reference to this type object. Then export the helper also as a
convenience function form use at the gdb command line.
Signed-off-by:
ess the version string returned by gdb as some distros tend to
prefix it with their name.
This feature depends on CONFIG_DEBUG_INFO.
CC: Michal Marek
CC: linux-kbu...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
Makefile |5 -
scripts/Makefile |3 ++-
scri
Kay Sievers
CC: linux-i...@vger.kernel.org
CC: linux-kbu...@vger.kernel.org
CC: Michal Marek
CC: sparcli...@vger.kernel.org
CC: Tony Luck
Jan Kiszka (13):
scripts/gdb: Add infrastructure
scripts/gdb: Add container_of helper and convenience function
scripts/gdb: Add lx-symbols command
scripts/gdb: Add get
This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience
function to retrieve the currently running task of the active context.
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py | 15 +++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/s
This helper probes the type of the gdb server. Supported are QEMU and
KGDB so far. Knowledge about the gdb server is required e.g. to retrieve
the current CPU or current task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 35 +++
1 files changed, 35
Add the internal helper get_thread_info that calculated the thread_info
from a given task variable. Also export this service as a convenience
function.
Note: ia64 version is untested.
CC: Tony Luck
CC: Fenghua Yu
CC: linux-i...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb
Parse the target endianness from the output of "show endian" and cache
the result to return it via the new helper get_target_endiannes. We will
need it for reading integers from buffers that contain target memory.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 17 ++
The internal helper for_each_task iterates over all tasks of the target,
calling the provided function on each. For performance reasons, we cache
a reference to the gdb type object of a task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py | 40
1
Add the helper task_by_pid that can look up a task by its PID. Also
export it as a convenience function.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py| 29 +
scripts/gdb/vmlinux-gdb.py |1 +
2 files changed, 30 insertions(+), 0 deletions(-)
diff
odule files found during lx-symbols execution. This way,
breakpoints can be set to module initialization functions, and there is
usually no need to explicitly call lx-symbols after (re-)loading a
module.
Signed-off-by: Jan Kiszka
---
scripts/gdb/symbols.py |
This pokes into the log buffer of the debugged kernel, dumping it to the
gdb console. Helping in case the target should or can no longer execute
dmesg itself.
CC: Kay Sievers
Signed-off-by: Jan Kiszka
---
scripts/gdb/dmesg.py | 63
scripts
Add helpers for reading integers from target memory buffers. Required
when caching the memory access is more efficient than reading individual
values via gdb.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 18 ++
1 files changed, 18 insertions(+), 0 deletions(-)
diff
This helper caches to result of "show architecture" and matches the
provided arch (sub-)string against that output.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/utils.py b/scripts/gd
On 2013-03-19 16:43, Gleb Natapov wrote:
> On Tue, Mar 19, 2013 at 04:30:26PM +0100, Paolo Bonzini wrote:
>> The CS base was initialized to 0 on VMX (wrong, but usually overridden
>> by userspace before starting) or 0xf on SVM. The correct value is
>> 0x, and VMX is able to emulate it
CC: Rob Landley
CC: linux-...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
Just to close the request Boris had regarding help on the commands.
Changes in v6:
- explain how to obtain help on commands and functions
- minor wording fixes
Documentation/gdb-kernel-debugging.txt | 158
Type lookups are very slow in gdb-python which is often noticeable when
iterating over a number of objects. Introduce the helper class
CachedType that keeps a reference to a gdb.Type object but also
refreshes it after an object file has been loaded.
Signed-off-by: Jan Kiszka
---
scripts/gdb
Add the internal helper get_module_by_name to obtain the module
structure corresponding to the given name. Also export this service as a
convenience function.
Signed-off-by: Jan Kiszka
---
scripts/gdb/module.py | 30 ++
scripts/gdb/vmlinux-gdb.py |1 +
2
The internal helper for_each_task iterates over all tasks of the target,
calling the provided function on each.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py | 35 +++
1 files changed, 35 insertions(+), 0 deletions(-)
create mode 100644 scripts/gdb/task.py
This helper caches to result of "show architecture" and matches the
provided arch (sub-)string against that output.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/utils.py b/scripts/gd
This adds a lsmod-like command to list all currently loaded modules of
the target.
Signed-off-by: Jan Kiszka
---
scripts/gdb/module.py | 43 +++
1 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/module.py b/scripts/gdb
CC: Rob Landley
CC: linux-...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
Documentation/gdb-kernel-debugging.txt | 155
1 files changed, 155 insertions(+), 0 deletions(-)
create mode 100644 Documentation/gdb-kernel-debugging.txt
diff --git a/Documentation
Will be used first to count module references. It is optimized to read
the mask only once per stop and to minimize the loop lengths.
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py | 33 +
1 files changed, 33 insertions(+), 0 deletions(-)
diff --git a
This pokes into the log buffer of the debugged kernel, dumping it to the
gdb console. Helping in case the target should or can no longer execute
dmesg itself.
CC: Kay Sievers
Signed-off-by: Jan Kiszka
---
scripts/gdb/dmesg.py | 63
scripts
This helper probes the type of the gdb server. Supported are QEMU and
KGDB so far. Knowledge about the gdb server is required e.g. to retrieve
the current CPU or current task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 35 +++
1 files changed, 35
Add the internal helper get_thread_info that calculated the thread_info
from a given task variable. Also export this service as a convenience
function.
Note: ia64 version is untested.
CC: Tony Luck
CC: Fenghua Yu
CC: linux-i...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb
.
Jan
CC: "David S. Miller"
CC: Fenghua Yu
CC: Kay Sievers
CC: linux-...@vger.kernel.org
CC: linux-i...@vger.kernel.org
CC: linux-kbu...@vger.kernel.org
CC: Michal Marek
CC: Rob Landley
CC: sparcli...@vger.kernel.org
CC: Tony Luck
Jan Kiszka (20):
scripts/gdb: Add infrastructure
s
ess the version string returned by gdb as some distros tend to
prefix it with their name.
This feature depends on CONFIG_DEBUG_INFO.
CC: Michal Marek
CC: linux-kbu...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
Makefile |5 -
scripts/Makefile |3 ++-
scri
This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience
function to retrieve the currently running task of the active context.
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py | 16
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git
-by: Jan Kiszka
---
scripts/gdb/module.py | 48
scripts/gdb/utils.py |7 +++
2 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/module.py b/scripts/gdb/module.py
index e309c0a..333729a 100644
--- a/scripts/gdb
Parse the target endianness from the output of "show endian" and cache
the result to return it via the new helper get_target_endiannes. We will
need it for reading integers from buffers that contain target memory.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 17 ++
Will soon be used for loading symbols, printing global variables or
listing modules.
Signed-off-by: Jan Kiszka
---
scripts/gdb/module.py | 28
1 files changed, 28 insertions(+), 0 deletions(-)
create mode 100644 scripts/gdb/module.py
diff --git a/scripts/gdb
Add helpers for reading integers from target memory buffers. Required
when caching the memory access is more efficient than reading individual
values via gdb.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 18 ++
1 files changed, 18 insertions(+), 0 deletions(-)
diff
Add the helper task_by_pid that can look up a task by its PID. Also
export it as a convenience function.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py| 29 +
scripts/gdb/vmlinux-gdb.py |1 +
2 files changed, 30 insertions(+), 0 deletions(-)
diff
Provide an internal helper with container_of semantics. As type lookups
are very slow in gdb-python and we need a type "long" for this, cache
the reference to this type object. Then export the helper also as a
convenience function form use at the gdb command line.
Signed-off-by:
This function allows to obtain a per-cpu variable, either of the current
or an explicitly specified CPU.
Note: sparc64 version is untested.
CC: "David S. Miller"
CC: sparcli...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py
odule files found during lx-symbols execution. This way, breakpoints
can be set to module initialization functions, and there is usually no
need to explicitly call lx-symbols after (re-)loading a module.
Signed-off-by: Jan Kiszka
---
scripts/gdb/symbols.py |
On 2013-01-29 14:51, Borislav Petkov wrote:
> On Tue, Jan 29, 2013 at 01:37:59PM +0100, Jan Kiszka wrote:
>> This function allows to obtain a per-cpu variable, either of the current
>> or an explicitly specified CPU.
>>
>> Note: sparc64 version is untested.
>>
On 2013-01-29 15:12, Borislav Petkov wrote:
> On Tue, Jan 29, 2013 at 02:56:56PM +0100, Jan Kiszka wrote:
>> Let me guess: You are dumping a weird QEMU/KVM CPU, right?
>
> Nah, I actually have the silicon! :-)
>
> Joking, of course. I wish. I'm booting the guest with
Signed-off-by: Jan Kiszka
---
Add-on patch to this series as requested during review.
Documentation/gdb-kernel-debugging.txt | 145
1 files changed, 145 insertions(+), 0 deletions(-)
create mode 100644 Documentation/gdb-kernel-debugging.txt
diff --git a
On 2013-02-28 13:13, Hu Tao wrote:
> From: Wen Congyang
>
> The guest should run after resetting it, but it does not run if its
> old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
>
> We don't set runstate to RUN_STATE_PAUSED when resetting the guest,
> so the runstate will be changed f
king of
pending kgdbwait requests.
Signed-off-by: Jan Kiszka <[EMAIL PROTECTED]>
---
arch/x86/kernel/traps_32.c |4 +++
arch/x86/kernel/traps_64.c |4 +++
include/linux/kgdb.h |7 +-
kernel/kgdb.c | 52 +
4 files c
George Anzinger wrote:
> On 01/31/2008 01:36 AM, Jan Kiszka was caught saying:
>> Jan Kiszka wrote:
>>> George Anzinger wrote:
>>>> On 01/30/2008 04:08 PM, Jan Kiszka was caught saying:
>>>>> [Here comes a rebased version against latest x86/mm]
>&
Jan Kiszka wrote:
> George Anzinger wrote:
>> On 01/31/2008 01:36 AM, Jan Kiszka was caught saying:
>>> BTW, do you know if EXCEPTION_STACK_READY fails for other archs in
>>> parse_early_param as well? It should, because my under standing of
>>> trap_init is t
Sergei Shtylyov wrote:
> Hello.
>
> Jan Kiszka wrote:
>
>> Sorry, previous version was missing some __init[data] attributes which
>> were dropped in an intermediate stage. Here comes an updated patch:
>
>> <---snip--->
>
>> This major refacto
From: Jan Kiszka
Provide an internal helper with container_of semantics. As type lookups
are very slow in gdb-python and we need a type "long" for this, cache
the reference to this type object. Then export the helper also as a
convenience function form use at the gdb command line.
Sig
From: Jan Kiszka
This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience
function to retrieve the currently running task of the active context.
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py | 15 +++
1 files changed, 15 insertions(+), 0 deletion
From: Jan Kiszka
Parse the target endianness from the output of "show endian" and cache
the result to return it via the new helper get_target_endiannes. We will
need it for reading integers from buffers that contain target memory.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils
@vger.kernel.org
CC: linux-kbu...@vger.kernel.org
CC: Michal Marek
CC: sparcli...@vger.kernel.org
CC: Tony Luck
Jan Kiszka (13):
scripts/gdb: Add infrastructure
scripts/gdb: Add container_of helper and convenience function
scripts/gdb: Add lx-symbols command
scripts/gdb: Add get_target_endian
From: Jan Kiszka
Add the internal helper get_thread_info that calculated the thread_info
from a given task variable. Also export this service as a convenience
function.
Note: ia64 version is untested.
CC: Tony Luck
CC: Fenghua Yu
CC: linux-i...@vger.kernel.org
Signed-off-by: Jan Kiszka
From: Jan Kiszka
This provides the basic infrastructure to load kernel-specific python
helper scripts when debugging the kernel in gdb.
The loading mechanism is based on gdb loading for -gdb.py when
opening . Therefore, this places a corresponding link to the
main helper script into the output
From: Jan Kiszka
Add the helper task_by_pid that can look up a task by its PID. Also
export it as a convenience function.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py| 29 +
scripts/gdb/vmlinux-gdb.py |1 +
2 files changed, 30 insertions(+), 0
From: Jan Kiszka
The internal helper for_each_task iterates over all tasks of the target,
calling the provided function on each. For performance reasons, we cache
a reference to the gdb type object of a task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py | 40
From: Jan Kiszka
This helper caches to result of "show architecture" and matches the
provided arch (sub-)string against that output.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/
From: Jan Kiszka
This function allows to obtain a per-cpu variable, either of the current
or an explicitly specified CPU.
Note: sparc64 version is untested.
CC: "David S. Miller"
CC: sparcli...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py
From: Jan Kiszka
This helper probes the type of the gdb server. Supported are QEMU and
KGDB so far. Knowledge about the gdb server is required e.g. to retrieve
the current CPU or current task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 35 +++
1
From: Jan Kiszka
Add helpers for reading integers from target memory buffers. Required
when caching the memory access is more efficient than reading individual
values via gdb.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 18 ++
1 files changed, 18 insertions(+), 0
From: Jan Kiszka
This is probably the most useful helper when debugging kernel modules:
lx-symbols will first reload vmlinux. Then it searches recursively for
*.ko files in the specified paths and the current directory. Finally it
walks the kernel's module list, issuing the necessary add-s
From: Jan Kiszka
This pokes into the log buffer of the debugged kernel, dumping it to the
gdb console. Helping in case the target should or can no longer execute
dmesg itself.
CC: Kay Sievers
Signed-off-by: Jan Kiszka
---
scripts/gdb/dmesg.py | 63
On 2012-10-03 14:16, Andi Kleen wrote:
> Jan Kiszka writes:
>
>> From: Jan Kiszka
>>
>> This pokes into the log buffer of the debugged kernel, dumping it to the
>> gdb console. Helping in case the target should or can no longer execute
>> dmesg itself
Domenico Andreoli wrote:
> On Sun, Feb 10, 2008 at 11:20:26PM +0100, Ingo Molnar wrote:
>> this is -v7 of the KGDB-light tree, which can be pulled from:
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb.git
>
> my git hangs on this..
Just booting? Or using the debugger? I
cy_restart - for implementing "R0" gdb packet
o idle_task - kgdb tells the per-cpu idle tasks apart
o clocksource_touch_watchdog - obvious
For simplicity reasons I just gpl-exported all of them. The result is
a fully modular kgdb that may help to reduce concerns regarding its
in
This function allows to obtain a per-cpu variable, either of the current
or an explicitly specified CPU.
Note: sparc64 version is untested.
CC: "David S. Miller"
CC: sparcli...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py
odule files found during lx-symbols execution. This way,
breakpoints can be set to module initialization functions, and there is
usually no need to explicitly call lx-symbols after (re-)loading a
module.
Signed-off-by: Jan Kiszka
---
scripts/gdb/symbols.py |
This is a shorthand for *$lx_per_cpu("current_task"), i.e. a convenience
function to retrieve the currently running task of the active context.
Signed-off-by: Jan Kiszka
---
scripts/gdb/percpu.py | 15 +++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/s
Parse the target endianness from the output of "show endian" and cache
the result to return it via the new helper get_target_endiannes. We will
need it for reading integers from buffers that contain target memory.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 17 ++
This helper probes the type of the gdb server. Supported are QEMU and
KGDB so far. Knowledge about the gdb server is required e.g. to retrieve
the current CPU or current task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 35 +++
1 files changed, 35
The internal helper for_each_task iterates over all tasks of the target,
calling the provided function on each. For performance reasons, we cache
a reference to the gdb type object of a task.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py | 40
1
on CONFIG_DEBUG_INFO.
CC: Michal Marek
CC: linux-kbu...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
Makefile |5 -
scripts/Makefile |3 ++-
scripts/gdb/Makefile |9 +
scripts/gdb/vmlinux-gdb.py | 20
4 files chan
Provide an internal helper with container_of semantics. As type lookups
are very slow in gdb-python and we need a type "long" for this, cache
the reference to this type object. Then export the helper also as a
convenience function form use at the gdb command line.
Signed-off-by:
Add the helper task_by_pid that can look up a task by its PID. Also
export it as a convenience function.
Signed-off-by: Jan Kiszka
---
scripts/gdb/task.py| 29 +
scripts/gdb/vmlinux-gdb.py |1 +
2 files changed, 30 insertions(+), 0 deletions(-)
diff
enghua Yu
CC: Kay Sievers
CC: linux-i...@vger.kernel.org
CC: linux-kbu...@vger.kernel.org
CC: Michal Marek
CC: sparcli...@vger.kernel.org
CC: Tony Luck
Jan Kiszka (13):
scripts/gdb: Add infrastructure
scripts/gdb: Add container_of helper and convenience function
scripts/gdb: Add lx-symb
This helper caches to result of "show architecture" and matches the
provided arch (sub-)string against that output.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/utils.py b/scripts/gd
This pokes into the log buffer of the debugged kernel, dumping it to the
gdb console. Helping in case the target should or can no longer execute
dmesg itself.
CC: Kay Sievers
Signed-off-by: Jan Kiszka
---
scripts/gdb/dmesg.py | 63
scripts
Add helpers for reading integers from target memory buffers. Required
when caching the memory access is more efficient than reading individual
values via gdb.
Signed-off-by: Jan Kiszka
---
scripts/gdb/utils.py | 18 ++
1 files changed, 18 insertions(+), 0 deletions(-)
diff
Add the internal helper get_thread_info that calculated the thread_info
from a given task variable. Also export this service as a convenience
function.
Note: ia64 version is untested.
CC: Tony Luck
CC: Fenghua Yu
CC: linux-i...@vger.kernel.org
Signed-off-by: Jan Kiszka
---
scripts/gdb
On 2013-08-23 22:17, Borislav Petkov wrote:
> On Fri, Aug 23, 2013 at 06:40:46PM +0200, Jan Kiszka wrote:
>> Below some hunks to get it working again - at least in the absence of
>> any microcode in the initrd. Marking all involved functions as __init
>> is another opti
On 2013-08-11 09:59, Jan Kiszka wrote:
> From: Jan Kiszka
>
> Allows to parse the result even if the KVM plugin does not yet
> understand a specific exit code.
>
> Signed-off-by: Jan Kiszka
> ---
> plugin_kvm.c | 12
> 1 files changed, 8 insertions(+
On 2013-09-16 16:06, Paolo Bonzini wrote:
> Remove the useless argument, and do not do anything if there are no
> VMs running at the time of the hotplug.
kvm_cpu_hotplug already filters !kvm_usage_count. If we need the check
to be under kvm_lock, drop that line as well. If that is not required
(ma
On 2013-09-20 20:18, Paul Gortmaker wrote:
> On 13-09-20 02:04 PM, Jan Kiszka wrote:
>> On 2013-09-20 19:51, Paul Gortmaker wrote:
>>> [Re: [PATCH 0/3] KVM: Make kvm_lock non-raw] On 16/09/2013 (Mon 18:12) Paul
>>> Gortmaker wrote:
>>>
>>>> On 13
On 2013-09-20 19:51, Paul Gortmaker wrote:
> [Re: [PATCH 0/3] KVM: Make kvm_lock non-raw] On 16/09/2013 (Mon 18:12) Paul
> Gortmaker wrote:
>
>> On 13-09-16 10:06 AM, Paolo Bonzini wrote:
>>> Paul Gortmaker reported a BUG on preempt-rt kernels, due to taking the
>>> mmu_lock within the raw kvm_lo
On 2013-08-30 19:25, Steven Rostedt wrote:
> On Fri, 30 Aug 2013 10:16:00 -0700
> "H. Peter Anvin" wrote:
>
>>> Who uses static tracing? I only use it to test that it still works ;-)
>>
>> Can we get rid of it?
>>
>
> I've though about it. But as some archs only have static tracing
> available
On 2013-09-22 11:53, Gleb Natapov wrote:
> On Sun, Sep 22, 2013 at 10:53:14AM +0200, Paolo Bonzini wrote:
>> Il 22/09/2013 09:42, Gleb Natapov ha scritto:
>>> On Mon, Sep 16, 2013 at 04:06:10PM +0200, Paolo Bonzini wrote:
Paul Gortmaker reported a BUG on preempt-rt kernels, due to taking the
>
On 2012-09-06 13:27, Tomoki Sekiyama wrote:
> This RFC patch series provides facility to dedicate CPUs to KVM guests
> and enable the guests to handle interrupts from passed-through PCI devices
> directly (without VM exit and relay by the host).
>
> With this feature, we can improve throughput and
On 2012-08-21 05:02, Xiao Guangrong wrote:
> In current code, if we map a readonly memory space from host to guest
> and the page is not currently mapped in the host, we will get a fault
> pfn and async is not allowed, then the vm will crash
>
> We introduce readonly memory region to map ROM/ROMD
On 2012-09-07 12:47, Xiao Guangrong wrote:
> On 09/07/2012 06:23 PM, Jan Kiszka wrote:
>> On 2012-08-21 05:02, Xiao Guangrong wrote:
>>> In current code, if we map a readonly memory space from host to guest
>>> and the page is not currently mapped in the host, we will ge
On 2012-09-09 15:42, Avi Kivity wrote:
> On 09/07/2012 02:14 PM, Jan Kiszka wrote:
>>>
>>> $ grep __KVM_HAVE include/linux/kvm.h | wc -l
>>> 20
>>
>> Yes, mistakes of the past.
>>
>>>
>>> As your suggestion, userspace will always
On 2012-10-22 13:43, Gleb Natapov wrote:
> On Mon, Oct 22, 2012 at 01:35:56PM +0200, Jan Kiszka wrote:
>> On 2012-10-22 13:23, Gleb Natapov wrote:
>>> On Mon, Oct 22, 2012 at 07:09:38PM +0800, Xiao Guangrong wrote:
>>>> On 10/22/2012 05:16 PM, Gleb Natapov wrote:
&g
On 2012-10-22 13:23, Gleb Natapov wrote:
> On Mon, Oct 22, 2012 at 07:09:38PM +0800, Xiao Guangrong wrote:
>> On 10/22/2012 05:16 PM, Gleb Natapov wrote:
>>> On Fri, Oct 19, 2012 at 03:37:32PM +0800, Xiao Guangrong wrote:
After commit b3356bf0dbb349 (KVM: emulator: optimize "rep ins" handling)
On 2012-10-22 14:18, Avi Kivity wrote:
> On 10/22/2012 01:45 PM, Jan Kiszka wrote:
>
>>> Indeed. git pull, recheck and call for kvm_flush_coalesced_mmio_buffer()
>>> is gone. So this will break new userspace, not old. By global you mean
>>> shared between devic
On 2012-10-22 14:53, Gleb Natapov wrote:
> On Mon, Oct 22, 2012 at 02:45:37PM +0200, Jan Kiszka wrote:
>> On 2012-10-22 14:18, Avi Kivity wrote:
>>> On 10/22/2012 01:45 PM, Jan Kiszka wrote:
>>>
>>>>> Indeed. git pull, recheck and call for kvm_flush_coal
On 2012-10-22 14:58, Avi Kivity wrote:
> On 10/22/2012 02:55 PM, Jan Kiszka wrote:
>>> Since the userspace change is needed the idea is dead, but if we could
>>> implement it I do not see how it can hurt the latency if it would be the
>>> only mechanism to use coales
On 2012-10-22 15:08, Gleb Natapov wrote:
> On Mon, Oct 22, 2012 at 03:05:58PM +0200, Jan Kiszka wrote:
>> On 2012-10-22 14:58, Avi Kivity wrote:
>>> On 10/22/2012 02:55 PM, Jan Kiszka wrote:
>>>>> Since the userspace change is needed the idea is dead, but if we
On 2012-10-22 16:00, Gleb Natapov wrote:
> On Mon, Oct 22, 2012 at 03:25:49PM +0200, Jan Kiszka wrote:
>> On 2012-10-22 15:08, Gleb Natapov wrote:
>>> On Mon, Oct 22, 2012 at 03:05:58PM +0200, Jan Kiszka wrote:
>>>> On 2012-10-22 14:58, Avi Kivity wrote:
>>&g
If we reenable ftrace via syctl, we currently set ftrace_trace_function
based on the previous simplistic algorithm. This is inconsistent with
what update_ftrace_function does. So better call that helper instead.
Signed-off-by: Jan Kiszka
---
kernel/trace/ftrace.c |8 ++--
1 files
Hi all,
32-bit kernels currently crash/reboot in early microcode loading when
non-dynamic function tracing is enabled. Several functions in that path
get instrumented with mcount, but its non-dynamic implementation does
not work before paging is enabled (it accesses global variables at wrong
addre
From: Jan Kiszka
Aligns us with latest arch/x86/include/uapi/asm/vmx.h.
Signed-off-by: Jan Kiszka
---
plugin_kvm.c |9 -
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/plugin_kvm.c b/plugin_kvm.c
index 9b376d8..8a25cf1 100644
--- a/plugin_kvm.c
+++ b/plugin_kvm.c
From: Jan Kiszka
Allows to parse the result even if the KVM plugin does not yet
understand a specific exit code.
Signed-off-by: Jan Kiszka
---
plugin_kvm.c | 12
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/plugin_kvm.c b/plugin_kvm.c
index 8a25cf1..59443e5
On 2013-08-12 17:24, Chris Metcalf wrote:
> This change provides the initial framework support for KVM on tilegx.
> Basic virtual disk and networking is supported.
>
> Signed-off-by: Chris Metcalf
> ---
...
> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
> index acccd08..d387
On 2013-04-15 14:46, Paolo Bonzini wrote:
> KVM does not use the activity state VMCS field, and does not support
> it in nested VMX either (the corresponding bits in the misc VMX feature
> MSR are zero). Fail entry if the activity state is set to anything but
> "active".
Ah, that indeed simplifie
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