- Original Message -
> >
> > Hm, suppose we're the next-in-line for a ticket lock and exit due
> > to
> > PLE. The lock holder completes and unlocks, which really assigns
> > the
> > lock to us. So now we are the lock owner, yet we are marked as
> > don't
> > yield-to-us in the PLE code
On Wed, Aug 08, 2012 at 10:43:01AM +0800, Wen Congyang wrote:
> diff --git a/Documentation/virtual/kvm/pv_event.txt
> b/Documentation/virtual/kvm/pv_event.txt
> new file mode 100644
> index 000..0ebc890
> --- /dev/null
> +++ b/Documentation/virtual/kvm/pv_event.txt
> @@ -0,0 +1,32 @@
> +The KV
On Mon, Aug 27, 2012 at 05:51:46PM +0800, Dong Hao wrote:
> +struct event_stats {
> + u64 count;
> + u64 time;
> +
> + /* used to calculate stddev. */
> + double mean;
> + double M2;
> +};
How about moving the stats functions from builtin-stat.c to e.g.
util/stats.c, and the
On Mon, Aug 27, 2012 at 01:34:36PM -0600, David Ahern wrote:
> On 8/27/12 9:53 AM, Andrew Jones wrote:
> >On Mon, Aug 27, 2012 at 05:51:46PM +0800, Dong Hao wrote:
> >
> >
> >
> >>+struct event_stats {
> >>+ u64 count;
> >>+
On Thu, Jun 21, 2012 at 04:56:08PM +0530, Raghavendra K T wrote:
> Here are the results from kernbench.
>
> PS: I think we have to only take that, both the patches perform better,
> than reading into actual numbers since I am seeing more variance in
> especially 3x. may be I can test with some mor
- Original Message -
> In summary, current PV has huge benefit on non-PLE machine.
>
> On PLE machine, the results become very sensitive to load, type of
> workload and SPIN_THRESHOLD. Also PLE interference has significant
> effect on them. But still it has slight edge over non PV.
>
H
On Mon, Mar 04, 2013 at 11:31:46PM +0530, Raghavendra K T wrote:
> This patch series further filters better vcpu candidate to yield to
> in PLE handler. The main idea is to record the preempted vcpus using
> preempt notifiers and iterate only those preempted vcpus in the
> handler. Note that the v
On Tue, Mar 05, 2013 at 05:54:09PM +0530, Raghavendra K T wrote:
> On 03/05/2013 03:23 PM, Andrew Jones wrote:
> >On Mon, Mar 04, 2013 at 11:31:46PM +0530, Raghavendra K T wrote:
> >> This patch series further filters better vcpu candidate to yield to
> >>in PLE h
- Original Message -
> Hello,
>
> I am having an intermittent issue where one of my KVM guests is
> locking up and when checking the process its running @ 100% cpu.
> The host is CentOS 6.4 running the kernel
> kernel-2.6.32-358.0.1.el6.x86_64.
>
> Would it be worth attempting to compi
On Mon, Jun 24, 2013 at 06:10:14PM +0530, Raghavendra K T wrote:
>
> Results:
> ===
> base = 3.10-rc2 kernel
> patched = base + this series
>
> The test was on 32 core (model: Intel(R) Xeon(R) CPU X7560) HT disabled
> with 32 KVM guest vcpu 8GB RAM.
Have you ever tried to get results with HT
On Wed, Jun 26, 2013 at 02:15:26PM +0530, Raghavendra K T wrote:
> On 06/25/2013 08:20 PM, Andrew Theurer wrote:
> >On Sun, 2013-06-02 at 00:51 +0530, Raghavendra K T wrote:
> >>This series replaces the existing paravirtualized spinlock mechanism
> >>with a paravirtualized ticketlock mechanism. The
Hi Christoffer,
I'm just confirming that I found the right repo/branch for the
most recent kvmarm unit tests. I'm looking at
github.com/virtualopensystems/linux-kvm-arm kvm-selftest
with last commit
commit b5aec35ee58c6b2d726a3e2fb56ec0e6e89976e0
Author: Christoffer Dall
Date: Fri Feb 15 18:
Hi Alex,
I'm looking at adding arm to kvm-unit-tests. One the first
things I'd like to do is clean up the kvm-unit-tests repo
a bit. There's some arch-specific files (including ppc)
laying around in the root dir that I'd sweep up before
adding another arch to the mix. Although, checking the git
hi
qemu should check KVM_CAP_NR_VCPUS for
the recommended number of vcpus. This patch adds a warning if a user
specifies a number of cpus between the recommended and max.
Signed-off-by: Andrew Jones
---
kvm-all.c | 45 +++--
1 file changed, 27 insertions(+
- Original Message -
> Am 22.08.2013 18:12, schrieb Eduardo Habkost:
> >
> > On 22/08/2013, at 12:39, Andrew Jones wrote:
> >
> >> The comment in kvm_max_vcpus() states that it's using the recommended
> >> procedure from the kernel API docum
- Original Message -
> Il 22/08/2013 17:39, Andrew Jones ha scritto:
> > The comment in kvm_max_vcpus() states that it's using the recommended
> > procedure from the kernel API documentation to get the max number
> > of vcpus that kvm supports. It is, b
r
the fail case was slightly changed, 'exceeds max cpus' to
'exceeds the maximum cpus'. If this is unacceptable change for
users like libvirt, then I'll need to spin a v3.
Signed-off-by: Andrew Jones
---
kvm-all.c | 69 -
- Original Message -
> Il 23/08/2013 13:33, Andrew Jones ha scritto:
> > Does smp_cpus map to the current
> > number of cpus, or to the number of possible cpus? If it maps to the number
> > of possible cpus, then this is the right place. If the former, then I gues
- Original Message -
> On 08/23/2013 07:24 AM, Andrew Jones wrote:
> > The comment in kvm_max_vcpus() states that it's using the recommended
> > procedure from the kernel API documentation to get the max number
> > of vcpus that kvm supports. It is, b
Take CONFIG_KVM_MAX_VCPUS from arm32, but set the default to 8.
Signed-off-by: Andrew Jones
---
arch/arm64/include/asm/kvm_host.h | 7 ++-
arch/arm64/kvm/Kconfig| 11 +++
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/kvm_host.h
b
Signed-off-by: Andrew Jones
---
arch/arm/kvm/arm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 741f66a2edbd7..9ebf8ac3a12ff 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -201,7 +201,7 @@ int
Drop the _ARM_ part of the name. We can then introduce a config option
like this to aarch64 and other arches using the same name - allowing
grep to show them all. Also update the help text to describe the option
more completely.
Signed-off-by: Andrew Jones
---
arch/arm/include/asm/kvm_host.h
Andrew Jones (3):
arm: kvm: clamp NR_VCPUS to MAX_VCPUS
arm32: kvm: rename CONFIG_KVM_ARM_MAX_VCPUS
aarch64: kvm: introduce CONFIG_KVM_MAX_VCPUS
arch/arm/include/asm/kvm_host.h | 4 ++--
arch/arm/kvm/Kconfig | 8
arch/arm/kvm/arm.c| 2 +-
arch
s (160). I
can't think of anything other than generating more warnings[1] from qemu
with guests that configure more vcpus than pcpus though.
[1] Actually, until 972fc544b6034a in uq/master is merged there won't be
any warnings either.
Signed-off-by: Andrew Jones
---
arch/x86/includ
Take CONFIG_KVM_MAX_VCPUS from arm32, but set the default to 255.
Signed-off-by: Andrew Jones
---
arch/x86/include/asm/kvm_host.h | 5 +++--
arch/x86/kvm/Kconfig| 10 ++
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch
On Sat, Sep 14, 2013 at 07:14:02AM -0500, Alexander Graf wrote:
>
>
> Am 14.09.2013 um 07:10 schrieb Andrew Jones :
>
> > Signed-off-by: Andrew Jones
> > ---
> > arch/arm/kvm/arm.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >
On Sun, Sep 15, 2013 at 12:03:22PM +0300, Gleb Natapov wrote:
> On Sat, Sep 14, 2013 at 02:16:51PM +0200, Andrew Jones wrote:
> > This patch removes KVM_SOFT_MAX_VCPUS and uses num_online_cpus() for
> > KVM_CAP_NR_VCPUS instead, as ARM does. While the API doc simply says
>
On Sun, Sep 15, 2013 at 12:08:38PM +0300, Gleb Natapov wrote:
> On Sat, Sep 14, 2013 at 02:18:49PM +0200, Andrew Jones wrote:
> > Take CONFIG_KVM_MAX_VCPUS from arm32, but set the default to 255.
> >
> > Signed-off-by: Andrew Jones
> > ---
> > arc
On Mon, Sep 16, 2013 at 11:55:17AM +0300, Gleb Natapov wrote:
> On Mon, Sep 16, 2013 at 10:22:09AM +0200, Andrew Jones wrote:
> > > > [1] Actually, until 972fc544b6034a in uq/master is merged there won't be
> > > > any warnings either.
> > &g
On Mon, Sep 16, 2013 at 11:47:10AM +0300, Gleb Natapov wrote:
> On Mon, Sep 16, 2013 at 10:28:20AM +0200, Andrew Jones wrote:
> > On Sun, Sep 15, 2013 at 12:08:38PM +0300, Gleb Natapov wrote:
> > > On Sat, Sep 14, 2013 at 02:18:49PM +0200, Andrew Jones wrote:
> > > >
On Mon, Sep 16, 2013 at 05:41:18PM +0300, Gleb Natapov wrote:
> On Mon, Sep 16, 2013 at 01:47:26PM +0200, Andrew Jones wrote:
> > On Mon, Sep 16, 2013 at 11:55:17AM +0300, Gleb Natapov wrote:
> > > On Mon, Sep 16, 2013 at 10:22:09AM +0200, Andrew Jones wrote:
> > >
On Mon, Sep 16, 2013 at 05:16:20PM +0300, Gleb Natapov wrote:
> On Mon, Sep 16, 2013 at 02:03:33PM +0200, Andrew Jones wrote:
> > On Mon, Sep 16, 2013 at 11:47:10AM +0300, Gleb Natapov wrote:
> > > On Mon, Sep 16, 2013 at 10:28:20AM +0200, Andrew Jones wrote:
> > > >
On Tue, Sep 17, 2013 at 12:36:19PM +0300, Gleb Natapov wrote:
> On Mon, Sep 16, 2013 at 05:22:26PM +0200, Andrew Jones wrote:
> > On Mon, Sep 16, 2013 at 05:41:18PM +0300, Gleb Natapov wrote:
> > > On Mon, Sep 16, 2013 at 01:47:26PM +0200, Andrew Jones wrote:
> > > >
Drop the _ARM_ part of the name. We can then introduce a config option
like this to aarch64 and other arches using the same name - allowing
grep to show them all. Also update the help text to describe the option
more completely.
Signed-off-by: Andrew Jones
---
v2: reword help text some more
Add a Makefile target to quickly generate arch-specific cscope
for kvm-unit-tests. Assumes a mostly flat directory structure,
i.e. uses '-maxdepth 1' in the file search.
Signed-off-by: Andrew Jones
Acked-by: Christoffer Dall
---
Makefile | 11 +--
1 file changed, 9 insert
also add a check for config.mak in Makefile
Signed-off-by: Andrew Jones
Acked-by: Christoffer Dall
---
.gitignore | 5 +
Makefile | 9 -
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/.gitignore b/.gitignore
index d6663ec10caf1..775d0dfd8263e 100644
--- a
On Thu, Jun 12, 2014 at 12:31:54PM +0200, Paolo Bonzini wrote:
> Il 11/06/2014 16:01, Andrew Jones ha scritto:
> >diff --git a/configure b/configure
> >index d0c62e24dd1d2..6cfc64943f6e6 100755
> >--- a/configure
> >+++ b/configure
> >@@ -15,6 +15,7 @@ usa
On Thu, Jun 12, 2014 at 12:42:51PM +0200, Paolo Bonzini wrote:
> Il 12/06/2014 12:40, Andrew Jones ha scritto:
> >>>> >+if [ -z "$testdir" -a \( "$arch" = "i386" -o "$arch" = "x86_64" \) ];
> >>>> >then
On Thu, Jun 12, 2014 at 12:44:30PM +0200, Paolo Bonzini wrote:
> Il 11/06/2014 16:01, Andrew Jones ha scritto:
> >This adds the applicable libfdt source files (unmodified) and a
> >README to explain where the source came from. The README says
> >
> > The code in t
On Thu, Jun 12, 2014 at 12:48:16PM +0200, Paolo Bonzini wrote:
> Il 11/06/2014 16:01, Andrew Jones ha scritto:
> >The test framework may have external dependencies. assert() provides
> >the ability to abort when those dependencies aren't met. However,
> >assert() should
On Thu, Jun 12, 2014 at 12:52:18PM +0200, Paolo Bonzini wrote:
> Il 11/06/2014 16:01, Andrew Jones ha scritto:
> >Use libgcc's stddef.h and stdint.h, and then remove the redundant
> >defines from libcflat.h. Also separate out the string function
> >declarations into
On Thu, Jun 12, 2014 at 12:16:18PM +0200, Paolo Bonzini wrote:
> Il 11/06/2014 16:01, Andrew Jones ha scritto:
> >virtio-testdev is a communication channel to qemu through virtio that
> >can be used by test code to send commands. The only command currently
> >implemented is E
On Sat, Jun 14, 2014 at 04:16:53PM +0200, Christoffer Dall wrote:
> On Wed, Jun 11, 2014 at 04:01:30PM +0200, Andrew Jones wrote:
> > This is the initial drop of the arm test framework and a first test
> > that just checks that setup completed (a selftest). kvm isn't needed
On Sat, Jun 14, 2014 at 04:44:47PM +0200, Christoffer Dall wrote:
> On Wed, Jun 11, 2014 at 04:01:15PM +0200, Andrew Jones wrote:
> > This is a v5 of a series that introduces arm to kvm-unit-tests. First,
> > it does some tidying up of the repo. Then, it adds support for device
&g
On Thu, Apr 17, 2014 at 04:17:42PM +0200, Andrew Jones wrote:
> Signed-off-by: Andrew Jones
> ---
> x86/unittests.cfg | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/x86/unittests.cfg b/x86/unittests.cfg
> index 7930c026a38d6..d78fe0eafe2
er as
report(msg1, cond1) -> FAIL
report_skip(msg2, !cond1, cond1 && cond2) -> SKIP
report_skip(msg3, !cond1, cond1 && cond3) -> SKIP
Signed-off-by: Andrew Jones
---
lib/libcflat.h | 1 +
lib/report.c | 34 ++
2 files changed,
On Tue, Jun 17, 2014 at 02:46:30PM +0200, Paolo Bonzini wrote:
> Il 17/06/2014 14:21, Andrew Jones ha scritto:
> >would look better as
> >
> >report(msg1, cond1) -> FAIL
> >report_skip(msg2, !cond1, cond1 && cond2) -> SKIP
&g
Add report_xfail(), which is report(), but with another condition
allowing it to output PASS/FAIL/XPASS/XFAIL, rather than only
PASS/FAIL. This allows report output to stay more consistent
between systems/configurations that may or may not support all
tests.
Signed-off-by: Andrew Jones
---
lib
initial drop
should get a second look (or interdiffed).
Thanks in advance for reviews!
[1] http://lists.nongnu.org/archive/html/qemu-devel/2014-07/msg01960.html
[2] http://fpaste.org/117172/
[3] http://fpaste.org/117173/
Andrew Jones (15):
libfdt: Import libfdt source
libfdt: get libfdt t
Add string functions needed for libfdt, and add a make target for
it. Also split string function declarations out to own string.h.
While at it, add strcpy.
Signed-off-by: Andrew Jones
Acked-by: Christoffer Dall
---
v6: split out string.h [Paolo Bonzini]
v4: rewrite strchr w/out use of strlen
Use libgcc's stddef.h and stdint.h, and then remove the redundant defines
from libcflat.h. These changes have no affect on code including libcflat.h,
but are needed in order to compile an unmodified libfdt for kvm-unit-tests
using an arm cross-compiler.
Signed-off-by: Andrew Jones
Ack
.
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v5:
- changed *get_baseaddr* helpers to *get_base* helpers
- a couple minor code changes [Christoffer Dall]
v4: reworked everything, added lots of comments to devicetree.h
---
lib/devicetree.c | 272
Support the bare minimum of virtio to enable access to the virtio-mmio
config space of a device. Currently this implementation must use a
device tree to find the device.
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v6:
- switch to using alloc()
- s/vmdev/vm_dev/ to be
diff --git a/lib/abort.c b/lib/abort.c
new file mode 100644
index 0..61f7f924aba4b
--- /dev/null
+++ b/lib/abort.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2014, Red Hat Inc, Andrew Jones
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.
+ */
+#include &
These are pretty much the same as the asm-generic version,
but use phys_addr_t.
Signed-off-by: Andrew Jones
---
lib/arm/asm/io.h | 13 +
lib/arm/asm/page.h | 34 +-
2 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/lib/arm/asm/io.h b
-testdev]
./configure --cross-prefix=arm-linux-gnu- --arch=arm
make
./run_tests.sh
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v6:
- fixed setup.c comment [Christoffer Dall]
- changed arm/run to use chr-testdev instead of virtio-testdev
- add align parameter to memregion_ne
.
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v6: use alloc() for start_usr
v5: rebase change: replace __stringify with libcflat's new xstr
macro
v4: a couple tweaks to fit changes in the other patches,
vectors-usr test now has an 8K usr stack
v3:
- squashed in
From: Christoffer Dall
Add simple busy-wait spinlock implementation for ARM.
Signed-off-by: Christoffer Dall
Signed-off-by: Andrew Jones
---
config/config-arm.mak | 3 ++-
lib/arm/asm/spinlock.h | 9 ++---
lib/arm/spinlock.c | 28
3 files changed, 32
offsets.mak
new file mode 100644
index 0..b2578a6692f33
--- /dev/null
+++ b/config/asm-offsets.mak
@@ -0,0 +1,41 @@
+#
+# asm-offsets adapted from the kernel, see
+# Kbuild
+# scripts/Kbuild.include
+# scripts/Makefile.build
+#
+# Authors: Andrew Jones
+#
+
+define se
alloc_ops provide interfaces for alloc(), free() and friends, allowing
unit tests and common code to use dynamic memory allocation.
arch-specific code must provide the implementations.
Signed-off-by: Andrew Jones
---
lib/alloc.c | 2 ++
lib/alloc.h | 31 +++
2 files
ned-off-by: Andrew Jones
---
lib/chr-testdev.c | 72 +++
lib/chr-testdev.h | 14 +++
lib/virtio.h | 2 ++
3 files changed, 88 insertions(+)
create mode 100644 lib/chr-testdev.c
create mode 100644 lib/chr-testdev.h
diff --git
From: Christoffer Dall
Add IO accessor functions to the arm library functions to avoid
register-writeback IO accessors that are not yet supported by the
kernel.
Signed-off-by: Christoffer Dall
Signed-off-by: Andrew Jones
---
lib/arm/asm/io.h | 57
cture specific versions placed in
lib/$ARCH/asm/.
Signed-off-by: Andrew Jones
Acked-by: Christoffer Dall
---
v5: added a trivial ioremap function [Christoffer Dall]
v4: introduce lib/asm symlink to get rid of #ifdef __arm__,
add spinlock.h too
v3: wrt to io.h (was libio.[ch]) only
- get r
Signed-off-by: Andrew Jones
---
lib/asm-generic/io.h | 13 +
lib/asm-generic/page.h | 28
2 files changed, 41 insertions(+)
create mode 100644 lib/asm-generic/page.h
diff --git a/lib/asm-generic/io.h b/lib/asm-generic/io.h
index f00f4d3e68fe1
Currently only supports sending (outbufs), doesn't have any
bells or whistles.
Signed-off-by: Andrew Jones
---
lib/virtio.c | 177 +++
lib/virtio.h | 107 +++-
2 files changed, 282 insertions(+), 2 dele
On Fri, Jul 11, 2014 at 10:40:42AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 10:19, Andrew Jones ha scritto:
> >alloc_ops provide interfaces for alloc(), free() and friends, allowing
> >unit tests and common code to use dynamic memory allocation.
> >arch-specific
On Fri, Jul 11, 2014 at 10:32:51AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 10:19, Andrew Jones ha scritto:
> >+enum virtio_hwdesc_type {
> >+VIRTIO_HWDESC_TYPE_DT = 0, /* device tree */
> >+NR_VIRTIO_HWDESC_TYPES,
> >+};
> >+
> >+enum virtio_
On Fri, Jul 11, 2014 at 11:27:58AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 11:08, Andrew Jones ha scritto:
> >>> lib/arm/virtio.c
> >>>
> >>> where virtio_bind is in lib/arm/virtio.c.
> >>>
> >Well, virtio_bind will still need to be in l
On Fri, Jul 11, 2014 at 11:32:20AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 11:23, Paolo Bonzini ha scritto:
> >
> >>+static struct virtqueue *vm_setup_vq(struct virtio_device *vdev,
> >>+ unsigned index,
> >>+ void (*callback)(struct virtqueue *vq),
> >>+
On Fri, Jul 11, 2014 at 11:41:34AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 10:55, Andrew Jones ha scritto:
> >On Fri, Jul 11, 2014 at 10:40:42AM +0200, Paolo Bonzini wrote:
> >>Il 11/07/2014 10:19, Andrew Jones ha scritto:
> >>>alloc_ops provide interfaces f
On Fri, Jul 11, 2014 at 12:07:25PM +0200, Andrew Jones wrote:
> On Fri, Jul 11, 2014 at 11:41:34AM +0200, Paolo Bonzini wrote:
> > Il 11/07/2014 10:55, Andrew Jones ha scritto:
> > >On Fri, Jul 11, 2014 at 10:40:42AM +0200, Paolo Bonzini wrote:
> > >>Il 11/07/2014
On Fri, Jul 11, 2014 at 10:47:00AM +0200, Paolo Bonzini wrote:
> Il 11/07/2014 10:19, Andrew Jones ha scritto:
> >This is a v6 of a series that introduces arm to kvm-unit-tests. As
> >the tidy-up patches from v5 have already been merged (thanks!), these
> >are just the remain
On Fri, Jul 11, 2014 at 11:08:28AM +0200, Andrew Jones wrote:
> On Fri, Jul 11, 2014 at 10:32:51AM +0200, Paolo Bonzini wrote:
> > Il 11/07/2014 10:19, Andrew Jones ha scritto:
> > >+enum virtio_hwdesc_type {
> > >+ VIRTIO_HWDESC_TYPE_DT = 0, /* device tree */
>
by's, and mainly the already Reviewed-by
patches
05/14 add minimal virtio support for devtree virtio-mmio
09/14 arm: initial drop
should get a second look (or interdiffed).
Thanks in advance for reviews!
[1] http://lists.nongnu.org/archive/html/qemu-devel/2014-07/msg01960.html
Andrew Jon
Signed-off-by: Andrew Jones
---
lib/asm-generic/io.h | 13 +
lib/asm-generic/page.h | 28
2 files changed, 41 insertions(+)
create mode 100644 lib/asm-generic/page.h
diff --git a/lib/asm-generic/io.h b/lib/asm-generic/io.h
index f00f4d3e68fe1
cture specific versions placed in
lib/$ARCH/asm/.
Signed-off-by: Andrew Jones
Acked-by: Christoffer Dall
---
v5: added a trivial ioremap function [Christoffer Dall]
v4: introduce lib/asm symlink to get rid of #ifdef __arm__,
add spinlock.h too
v3: wrt to io.h (was libio.[ch]) only
- get r
+file = selftest.flat
+extra_params = -append 'vectors-usr'
+groups = selftest
diff --git a/config/config-arm.mak b/config/config-arm.mak
index f03b96d4c50c5..8a274c50332b0 100644
--- a/config/config-arm.mak
+++ b/config/config-arm.mak
@@ -41,7 +41,8 @@ cflatobjs += \
lib/chr-t
Currently only supports sending (outbufs), doesn't have any
bells or whistles. Code adapted from the Linux Kernel.
Signed-off-by: Andrew Jones
---
v7:
- {alloc,alloc_aligned} -> {calloc,memalign}
- changes now split between virtio.* and virtio-mmio.* files
---
lib/virtio-mmio
From: Christoffer Dall
Add IO accessor functions to the arm library functions to avoid
register-writeback IO accessors that are not yet supported by the
kernel.
Signed-off-by: Christoffer Dall
Signed-off-by: Andrew Jones
---
lib/arm/asm/io.h | 57
offsets.mak
new file mode 100644
index 0..b2578a6692f33
--- /dev/null
+++ b/config/asm-offsets.mak
@@ -0,0 +1,41 @@
+#
+# asm-offsets adapted from the kernel, see
+# Kbuild
+# scripts/Kbuild.include
+# scripts/Makefile.build
+#
+# Authors: Andrew Jones
+#
+
+define se
These are pretty much the same as the asm-generic version,
but use phys_addr_t.
Signed-off-by: Andrew Jones
---
lib/arm/asm/io.h | 13 +
lib/arm/asm/page.h | 34 +-
2 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/lib/arm/asm/io.h b
Support the bare minimum of virtio to enable access to the virtio-mmio
config space of a device. Currently this implementation must use a
device tree to find the device.
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v7:
- s/alloc/calloc/
- split into virtio.[ch] and virtio
physical memory allocator, which the
early_* alloc functions build on.
Signed-off-by: Andrew Jones
---
v7: expanded from only supplying the alloc function wrappers to
including early_* and phys_alloc [Paolo Bonzini]
---
lib/alloc.c | 176
-of.txt.
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v7:
- squashed the "add a make target" bit of v6's "libfdt: get libfdt to
build" (now dropped) patch. The rest of that dropped patch has
already been merged under "libcflat: add more string
ned-off-by: Andrew Jones
---
lib/chr-testdev.c | 72 +++
lib/chr-testdev.h | 14 +++
lib/virtio.h | 2 ++
3 files changed, 88 insertions(+)
create mode 100644 lib/chr-testdev.c
create mode 100644 lib/chr-testdev.h
diff --git
From: Christoffer Dall
Add simple busy-wait spinlock implementation for ARM.
Signed-off-by: Christoffer Dall
Signed-off-by: Andrew Jones
---
config/config-arm.mak | 3 ++-
lib/arm/asm/spinlock.h | 9 ++---
lib/arm/spinlock.c | 28
3 files changed, 32
onfigure --cross-prefix=arm-linux-gnu- --arch=arm
make
./run_tests.sh
Signed-off-by: Andrew Jones
Reviewed-by: Christoffer Dall
---
v7:
- remove memregions (reworked them as phys_alloc in lib/alloc)
- selftest: non-functional change: s/argv[i]/var/
- lib/argv:setup_args don't derefe
On Wed, Jul 16, 2014 at 05:31:33AM -0400, Levente Kurusa wrote:
> - Original Message -
> > [...]
> > +void chr_testdev_exit(int code)
> > +{
> > + char buf[8];
> > + int len;
> > +
> > + snprintf(buf, sizeof(buf), "%dq", code);
> > + len = strlen(buf);
>
> AFAIK, snprintf returns t
asm/setup.h
> >new file mode 100644
> >index 0..21445ef2085fc
> >--- /dev/null
> >+++ b/lib/arm/asm/setup.h
> >@@ -0,0 +1,27 @@
> >+#ifndef _ASMARM_SETUP_H_
> >+#define _ASMARM_SETUP_H_
> >+/*
> >+ * Copyright (C) 2014, Red Hat Inc, A
ch
of this series. Other hypervisor guest types may find it useful as
well.
Signed-off-by: Ulrich Obergfell
Signed-off-by: Andrew Jones
---
include/linux/nmi.h | 9 +
kernel/watchdog.c | 45 +++--
2 files changed, 52 insertions(+), 2 deletio
It's not recommended for KVM guests to enable hard lockup detection, as
false positives may be easily triggered by, for example, vcpu overcommit.
However any kernel compiled with HARDLOCKUP_DETECTOR that detects a PMU
on boot will by default enable hard lockup detection. This series gives
a kernel
== 0 || cpu0_err)
pr_info("enabled on all CPUs, ...")
The patch avoids this by clearing cpu0_err in watchdog_nmi_disable().
Signed-off-by: Ulrich Obergfell
Signed-off-by: Andrew Jones
---
kernel/watchdog.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/watchdo
ned-off-by: Andrew Jones
---
arch/x86/kernel/kvm.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 3dd8e2c4d74a9..95c3cb16af3e5 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -35,6 +35,7 @@
#include
#include
On Fri, Jul 25, 2014 at 04:32:55AM -0400, Ulrich Obergfell wrote:
> > - Original Message -
> > From: "Andrew Jones"
> > To: linux-ker...@vger.kernel.org, kvm@vger.kernel.org
> > Cc: uober...@redhat.com, dzic...@redhat.com, pbonz...@redhat.com,
ch
of this series. Other hypervisor guest types may find it useful as
well.
Signed-off-by: Ulrich Obergfell
Signed-off-by: Andrew Jones
---
v2: don't override hardlockup detector setting when just changing
the threshold [Uli and Don]
---
include/linux/
n on A15's it's not clear from the spec if the
instructions will behave as expected while caches are off, so we no longer
allow Load-Exclusive instructions on those processors without caches enabled
either.
Signed-off-by: Andrew Jones
---
lib/arm/asm/setup.h | 2 ++
lib/arm/setup.c
- Original Message -
> Il 16/09/2014 04:06, Andrew Jones ha scritto:
> > We shouldn't try Load-Exclusive instructions unless we've enabled memory
> > management, as these instructions depend on the data cache unit's
> > coherency monitor. This patch a
- Original Message -
> Il 16/09/2014 14:12, Andrew Jones ha scritto:
> >> > Should it at least write 1 to the spinlock?
> > I thought about that. So on one hand we might get a somewhat functional
> > synchronization mechanism, which may be enough for some
- Original Message -
>
>
> - Original Message -
> > Il 16/09/2014 14:12, Andrew Jones ha scritto:
> > >> > Should it at least write 1 to the spinlock?
> > > I thought about that. So on one hand we might get a somewhat functional
> &
- Original Message -
> Il 16/09/2014 14:43, Andrew Jones ha scritto:
> > I don't think we need to worry about this case. AFAIU, enabling the
> > caches for a particular cpu shouldn't require any synchronization.
> > So we should be able to do
> >
&g
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