On Wed, Jun 15, 2022 at 11:45:01AM +0800, Zhenzhong Duan wrote:
> According to spec:
> "TSEG Enable (T_EN): Enabling of SMRAM memory for Extended SMRAM space
> only. When G_SMRAME = 1 and TSEG_EN = 1, the TSEG is enabled to appear
> in the appropriate physical address space. Note that once D_LCK is
On 6/15/22 14:48, Cédric Le Goater wrote:
Hello Alexey,
On 6/8/22 05:01, Alexey Kardashevskiy wrote:
The new PAPR 2.12 defines a watchdog facility managed via the new
H_WATCHDOG hypercall.
This adds H_WATCHDOG support which a proposed driver for pseries uses:
https://patchwork.ozlabs.org/pr
On 15/06/2022 07:23, Cédric Le Goater wrote:
On 6/14/22 10:29, Frederic Barrat wrote:
The 'resume_as_sreset' attribute of a cpu can be set when a thread is
entering a stop state on ppc books. It causes the thread to be
re-routed to vector 0x100 when woken up by an exception. So it must be
cle
Hi,
> > There's a new UEFI feature in v2.9 of the specification (March 2021) that
> > allows for memory ranges to be classified as "unaccepted", since both TDX
> > and SEV-SNP require that the guest VM accept any host-made changes to
> > page state. We should expect newer technologies on non-x86
On Wed, Jun 15, 2022 at 06:07:44AM +0900, Akihiko Odaki wrote:
> softmmu/datadir.c had its own implementation to find files in the
> build tree, but now bundle mechanism provides the unified
> implementation which works for datadir and the other files.
>
> Signed-off-by: Akihiko Odaki
> ---
> .t
On 6/14/22 17:54, Alexander Bulekov wrote:
The existing check has two problems:
1. Meson uses a private directory for the get_supported_arguments check.
./instrumentation-filter does not exist in that private directory (it is
copied into the root of the build-directory).
2. fsanitize-coverage-al
On 6/14/22 23:07, Akihiko Odaki wrote:
)
+
roms = []
if unpack_edk2_blobs
fds = [
@@ -20,6 +22,9 @@ if unpack_edk2_blobs
install: get_option('install_blobs'),
install_dir: qemu_datadir,
command: [ bzip2, '-dc', '@INPUT0@' ])
+
+
On 6/14/22 23:07, Akihiko Odaki wrote:
diff --git a/util/cutils.c b/util/cutils.c
index a58bcfd80e7..fe3bbb1c4eb 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -1086,3 +1086,36 @@ char *get_relocated_path(const char *dir)
}
return g_string_free(result, false);
}
+
+static const c
On 14.06.22 14:13, Julia Suvorova wrote:
> On Tue, Jun 14, 2022 at 11:50 AM David Hildenbrand wrote:
>>
>> On 14.06.22 10:54, Igor Mammedov wrote:
>>> On Mon, 13 Jun 2022 16:09:53 +0100
>>> Stefan Hajnoczi wrote:
>>>
On Mon, Jun 13, 2022 at 05:01:10PM +0200, Julia Suvorova wrote:
> On Tu
On Wed, Jun 15, 2022 at 06:07:42AM +0900, Akihiko Odaki wrote:
> Developers often run QEMU without installing. The bundle mechanism
> allows to look up files which should be present in installation even in
> such a situation.
>
> It is a general mechanism and can find any files located relative
>
On Tue, 14 Jun 2022 at 17:38, Stefan Hajnoczi wrote:
>
> On Tue, Jun 14, 2022 at 02:37:02PM +, Jag Raman wrote:
> > > On Jun 14, 2022, at 3:06 AM, Stefan Hajnoczi wrote:
> > >
> > > On Mon, Jun 13, 2022 at 04:26:20PM -0400, Jagannathan Raman wrote:
> > >> This is v12 of the server side change
On Jun 14 08:41, Keith Busch wrote:
> It's a pretty nasty hack, and definitely not in compliance with the spec: the
> db_addr is supposed to be read-only from the device side, though I do think
> it's safe for this environment. Unless Klaus or anyone finds something I'm
> missing, I feel this is an
On 6/14/22 23:07, Akihiko Odaki wrote:
Developers often run QEMU without installing. The bundle mechanism
allows to look up files which should be present in installation even in
such a situation.
It is a general mechanism and can find any files located relative
to the installation tree. The buil
Queued, thanks.
Paolo
On 6/15/22 05:45, Zhenzhong Duan wrote:
According to spec:
"TSEG Enable (T_EN): Enabling of SMRAM memory for Extended SMRAM space
only. When G_SMRAME = 1 and TSEG_EN = 1, the TSEG is enabled to appear
in the appropriate physical address space. Note that once D_LCK is set,
this bit becomes read on
On Jun 14 11:40, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert"
>
> I've sent the 3 char set last month, but have updated
> it a little; I cleaned up a comment style that was already
> broken so checkpatch is happy.
>
> The 'namesapce' is a new patch; it's amazing how many
On Tue, Jun 14, 2022 at 08:23:46PM +, Sean Christopherson wrote:
> On Thu, Jun 02, 2022, Chao Peng wrote:
> > On Wed, Jun 01, 2022 at 02:11:42PM +0200, Gupta, Pankaj wrote:
> > >
> > > > > > Introduce a new memfd_create() flag indicating the content of the
> > > > > > created memfd is inaccess
On Tue, Jun 14, 2022 at 01:59:41PM -0700, Andy Lutomirski wrote:
> On Tue, Jun 14, 2022 at 12:09 PM Sean Christopherson
> wrote:
> >
> > On Tue, Jun 14, 2022, Andy Lutomirski wrote:
> > > On Tue, Jun 14, 2022 at 12:32 AM Chao Peng
> > > wrote:
> > > >
> > > > On Thu, Jun 09, 2022 at 08:29:06PM
On Wed, Jun 15, 2022 at 10:48:26AM +0200, Klaus Jensen wrote:
> > By the way, I noticed that the patch never updates the cq's ei_addr value.
> > Is
> > that on purpose?
>
> Yeah, I also mentioned this previously[1] and I still think we need to
> update the event index. Otherwise (and my testing
On Jun 15 10:07, John Levon wrote:
> On Wed, Jun 15, 2022 at 10:48:26AM +0200, Klaus Jensen wrote:
>
> > > By the way, I noticed that the patch never updates the cq's ei_addr
> > > value. Is
> > > that on purpose?
> >
> > Yeah, I also mentioned this previously[1] and I still think we need to
> >
On Jun 15 11:58, Jinhao Fan wrote:
>
> > On Jun 14, 2022, at 11:41 PM, Keith Busch wrote:
> >
> > It's a pretty nasty hack, and definitely not in compliance with the spec:
> > the
> > db_addr is supposed to be read-only from the device side, though I do think
> > it's safe for this environment.
On 6/15/22 09:17, Frederic Barrat wrote:
On 15/06/2022 07:23, Cédric Le Goater wrote:
On 6/14/22 10:29, Frederic Barrat wrote:
The 'resume_as_sreset' attribute of a cpu can be set when a thread is
entering a stop state on ppc books. It causes the thread to be
re-routed to vector 0x100 when wo
Hi Richard.
On 2022/6/15 上午12:21, Richard Henderson wrote:
On 6/14/22 02:05, Song Gao wrote:
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+ return 0;
+}
This should not be zero. See cpu_probe_common in the kernel. At
minimum HWCAP_LOONGARCH_CRC32 and HWCA
On 6/14/22 21:05, Richard Henderson wrote:
On 6/14/22 03:29, Vladimir Sementsov-Ogievskiy wrote:
The following changes since commit debd0753663bc89c86f5462a53268f2e3f680f60:
Merge tag 'pull-testing-next-140622-1' of https://github.com/stsquad/qemu
into staging (2022-06-13 21:10:57 -0700)
a
On 2022/6/15 上午12:43, Richard Henderson wrote:
On 6/14/22 02:05, Song Gao wrote:
@@ -172,17 +173,20 @@ static void loongarch_cpu_do_interrupt(CPUState
*cs)
update_badinstr = 0;
break;
case EXCCODE_ADEM:
+ case EXCCODE_BCE:
case EXCCODE_SYS:
case EXCCOD
On 2022/6/15 上午12:15, Richard Henderson wrote:
+static void *get_ctx(struct target_sctx_info *info)
+{
+ return (void *)((char *)info + sizeof(struct target_sctx_info));
+}
Return type should be struct target_sctx_info *.
I wonder that if we return target_fpu_context * and rename get_ctx
On Wed, Jun 15, 2022 at 5:04 AM Jason Wang wrote:
>
> On Tue, Jun 14, 2022 at 5:32 PM Eugenio Perez Martin
> wrote:
> >
> > On Tue, Jun 14, 2022 at 10:20 AM Jason Wang wrote:
> > >
> > > On Tue, Jun 14, 2022 at 4:14 PM Eugenio Perez Martin
> > > wrote:
> > > >
> > > > On Tue, Jun 14, 2022 at 10
On Wed, Jun 15, 2022 at 11:33:02AM +0200, Klaus Jensen wrote:
> > BTW I'm surprised that this patch has just this:
> >
> > +static void nvme_update_sq_eventidx(const NvmeSQueue *sq)
> > +{
> > +pci_dma_write(&sq->ctrl->parent_obj, sq->ei_addr, &sq->tail,
> > + sizeof(sq->tail
The qemu_find_file method impl is rather crude with a variety of
problems (detailed in commit message of first patch).
This series addresses those problems, making qemu_find_file
much more flexible and able to be trivially extended to find
any type of file, both in a (optionally relocated) install
The qemu_find_file method has a couple of flaws in its current
implementation:
* The configure time 'qemu-firmware' search path is mistakenly
also used to find keymaps
* The configure time 'qemu-firmware' search path is mistakenly
relocated even when running from build dir resulting in
The SDL/GTK/Cocoa UIs currently fail to load icons when run from the
build directory as get_resource returns a bogus path.
To address this we first re-arrange the ui/icons sub-directory
so that its layout reflects the contents that will be installed.
Then we introduce QEMU_FILE_TYPE_ICON to qemu_
On Wed, Jun 15, 2022 at 10:39:29AM +0200, Paolo Bonzini wrote:
> On 6/14/22 23:07, Akihiko Odaki wrote:
> > Developers often run QEMU without installing. The bundle mechanism
> > allows to look up files which should be present in installation even in
> > such a situation.
> >
> > It is a general m
The TAP device code currently uses get_relocate_path to find the bridge
helper, however, this fails when run from the build dir. Adding support
to qemu_find_file for helper binaries, allows it to work from both the
(relocated) install tree and build dir.
Signed-off-by: Daniel P. Berrangé
---
inc
The 'keymaps' directory contents is nothing to do with the firmware
blobs. The 'pc-bios/keymaps' directory appears to have been used
previously as a convenience for getting the files installed into
a subdir of the firmware install dir, as well as to make it easier
to launch QEMU directly from the b
On 6/15/22 10:30, Daniel P. Berrangé wrote:
I don't think this is an attractive approach to the problem,
because it results in us adding a bunch of meson rules to
simulate 'make install' within the build dir. This is undesirable
clutter IMHO, and can be solved more simply by just modifying the
qe
On Wed, Jun 15, 2022 at 4:24 PM David Hildenbrand wrote:
> >> Is that a temporary or a permanent thing? Do we know?
> >
> > No idea. But his last signed-off was three years ago.
>
> I sent a patch to Xiao, asking if he's still active in QEMU. If I don't
> get a reply this week, I'll move forward
> On Jun 15, 2022, at 6:11 PM, John Levon wrote:
>
> On Wed, Jun 15, 2022 at 11:33:02AM +0200, Klaus Jensen wrote:
>
>>> BTW I'm surprised that this patch has just this:
>>>
>>> +static void nvme_update_sq_eventidx(const NvmeSQueue *sq)
>>> +{
>>> +pci_dma_write(&sq->ctrl->parent_obj, sq
On Wed, Jun 15, 2022 at 01:02:08PM +0200, Paolo Bonzini wrote:
> On 6/15/22 10:30, Daniel P. Berrangé wrote:
> > I don't think this is an attractive approach to the problem,
> > because it results in us adding a bunch of meson rules to
> > simulate 'make install' within the build dir. This is undes
On 6/15/22 12:52, Daniel P. Berrangé wrote:
+case QEMU_FILE_TYPE_HELPER:
+rel_install_dir = "";
+rel_build_dir = "";
+default_install_dir = default_helper_dir;
+break;
+
You're replacing ad hoc rules in Akihiko's meson.build with an ad hoc
enum + the corr
On Wed, Jun 15, 2022 at 07:22:22PM +0800, Jinhao Fan wrote:
> >>> Isn't this racy against the driver? Compare
> >>> https://github.com/spdk/spdk/blob/master/lib/nvmf/vfio_user.c#L1317
> >>
> >> QEMU has full memory barriers on dma read/write, so I believe this is
> >> safe?
> >
> > But don't you
Laurent Vivier writes:
> On 13/05/2022 13:44, Markus Armbruster wrote:
>> Laurent Vivier writes:
>>
>>> Copied from socket netdev file and modified to use SocketAddress
>>> to be able to introduce new features like unix socket.
>>>
>>> "udp" and "mcast" are squashed into dgram netdev, multicast
On 15.06.22 13:17, Xiao Guangrong wrote:
> On Wed, Jun 15, 2022 at 4:24 PM David Hildenbrand wrote:
>
Is that a temporary or a permanent thing? Do we know?
>>>
>>> No idea. But his last signed-off was three years ago.
>>
>> I sent a patch to Xiao, asking if he's still active in QEMU. If I do
Laurent Vivier writes:
> On 13/05/2022 13:21, Markus Armbruster wrote:
>> Laurent Vivier writes:
>>
>>> As qemu_opts_parse_noisily() flattens the QAPI structures ("type" field
>>> of Netdev structure can collides with "type" field of SocketAddress),
>>
>> To remember how this works, I have to
On 01/06/2022 15:05, Alex Bennée wrote:
> From: Paolo Bonzini
>
> In preparation for handling more binaries than just cc, handle
> the case of "probe_target_compiler $cpu" directly in the function,
> setting the target_* variables based on the ones that are used to
> build QEMU. The clang check
On Wed, Jun 15, 2022 at 01:42:58PM +0200, Paolo Bonzini wrote:
> On 6/15/22 12:52, Daniel P. Berrangé wrote:
> > +case QEMU_FILE_TYPE_HELPER:
> > +rel_install_dir = "";
> > +rel_build_dir = "";
> > +default_install_dir = default_helper_dir;
> > +break;
> > +
>
>
On Fri, Jun 10, 2022 at 1:14 PM wrote:
>
> From: Frank Chang
>
> Introduce build_tdata1() to build tdata1 register content, which can be
> shared among all types of triggers.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/debug.c | 15 ++-
> 1 file changed, 10 insertions(+), 5
On Fri, Jun 10, 2022 at 1:15 PM wrote:
>
> From: Frank Chang
>
> Replace type2_trigger_t with the real tdata1, tdata2, and tdata3 CSRs,
> which allows us to support more types of triggers in the future.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/cpu.h | 6 ++-
> target/riscv/debu
On Fri, Jun 10, 2022 at 1:14 PM wrote:
>
> From: Frank Chang
>
> The value of tselect CSR can be written should be limited within the
> range of supported triggers number.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/debug.c | 9 +++--
> 1 file changed, 3 insertions(+), 6 deletions(-
Signed-off-by: Markus Armbruster
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 4cf6174f9f..4c921c07db 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2745,6 +2745,7 @@ F: softmmu/cpu-throttle.c
F: softmmu/cpu-timers.c
F: softmmu/icount.c
F:
On Fri, Jun 10, 2022 at 1:21 PM wrote:
>
> From: Frank Chang
>
> tinfo.info:
> One bit for each possible type enumerated in tdata1.
> If the bit is set, then that type is supported by the currently
> selected trigger.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/cpu_bits.h | 1 +
>
On Fri, Jun 10, 2022 at 1:21 PM wrote:
>
> From: Frank Chang
>
> Trigger actions are shared among all triggers. Extract to a common
> function.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/debug.c | 55 ++--
> target/riscv/debug.h | 13 +++
On Fri, Jun 10, 2022 at 1:25 PM wrote:
>
> From: Frank Chang
>
> Type 2 trigger cannot be fired in VU/VS modes.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/debug.c | 10 ++
> 1 file changed, 10 insertions(+)
>
Reviewed-by: Bin Meng
softmmu/datadir.c had its own implementation to find files in the
build tree, but now bundle mechanism provides the unified
implementation which works for datadir and the other files.
Signed-off-by: Akihiko Odaki
---
.travis.yml | 2 +-
meson.build | 2 +-
pc-bi
Developers often run QEMU without installing. The bundle mechanism
allows to look up files which should be present in installation even in
such a situation.
It is a general mechanism and can find any files located relative
to the installation tree. The build tree must have a new directory,
qemu-bu
Developers often run QEMU without installing. The bundle mechanism
allows to look up files which should be present in installation even in
such a situation.
It is a general mechanism and can find any files located relative
to the installation tree. The build tree must have a new directory,
qemu-bu
On Tue, Jun 14, 2022 at 02:18:41PM +0300, Andrey Ryabinin wrote:
> Hi
>
> These couple patches aims to make possible local migration (within one host)
> on the same TAP device used by source and destination QEMU
>
> The scenario looks like this
> 1. Create TAP devices and pass file descriptors
Signed-off-by: Akihiko Odaki
---
meson.build | 2 +-
ui/cocoa.m | 29 -
ui/gtk.c | 6 +-
ui/icons/meson.build | 32
ui/sdl2.c| 18 +++---
5 files changed, 57 insertions(+), 30
On 2022/06/15 17:19, Paolo Bonzini wrote:
On 6/14/22 23:07, Akihiko Odaki wrote:
diff --git a/util/cutils.c b/util/cutils.c
index a58bcfd80e7..fe3bbb1c4eb 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -1086,3 +1086,36 @@ char *get_relocated_path(const char *dir)
}
return g_string
Signed-off-by: Akihiko Odaki
---
include/net/net.h | 2 +-
meson.build | 4 +++-
net/tap.c | 6 +-
qemu-options.hx | 4 ++--
4 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/include/net/net.h b/include/net/net.h
index 523136c7acb..4a5ed27a4b7 100644
--- a/includ
On Tue, Jun 14, 2022 at 02:18:42PM +0300, Andrey Ryabinin wrote:
> This reverts commit 9b938c7262e4 ("chardev: clear O_NONBLOCK on SCM_RIGHTS
> file descriptors").
> File descriptor passed to QEMU via 'getfd' QMP command always
> changed to blocking mode. Instead of that, change blocking mode by Q
On Fri, Jun 10, 2022 at 1:25 PM wrote:
>
> From: Frank Chang
>
> Type 6 trigger is similar to a type 2 trigger, but provides additional
> functionality and should be used instead of type 2 in newer
> implementations.
>
> Signed-off-by: Frank Chang
> ---
> target/riscv/debug.c | 174
Came across below link about QEMU to pass acpi tables to guest OS.
https://wiki.qemu.org/Features/ACPITableGeneration
Can I get more docs with respect to acpi tables/devices passing to guest OS
from hypervisor or dom0?
Looking for an example how an asl file which gets added in the SSDT table
can
On Fri, Jun 10, 2022 at 1:24 PM wrote:
>
> From: Frank Chang
>
> If the value written to tselect is greater than or equal to the number
> of supported triggers, then the following reads of tselect would return
> value 0.
Where is this behavior documented?
>
> Signed-off-by: Frank Chang
> ---
>
On Tue, Jun 14, 2022 at 10:30 AM John Snow wrote:
>
> On Tue, Jun 14, 2022 at 4:59 AM Daniel P. Berrangé
> wrote:
> >
> > On Tue, Jun 14, 2022 at 06:46:35AM +0200, Thomas Huth wrote:
> > > On 14/06/2022 03.50, John Snow wrote:
> > > > In certain container environments we may not have FUSE at all
On Wed, 15 Jun 2022 18:23:28 +0530
ritul guru wrote:
> Came across below link about QEMU to pass acpi tables to guest OS.
> https://wiki.qemu.org/Features/ACPITableGeneration
that link a bit outdated (project was completed but than later QEMU
moved on to built-in library for composing ACPI table
On Wed, Jun 15, 2022, Chao Peng wrote:
> On Tue, Jun 14, 2022 at 01:59:41PM -0700, Andy Lutomirski wrote:
> > On Tue, Jun 14, 2022 at 12:09 PM Sean Christopherson
> > wrote:
> > >
> > > On Tue, Jun 14, 2022, Andy Lutomirski wrote:
> > > > This patch series is fairly close to implementing a rather
On 6/15/22 02:47, Vladimir Sementsov-Ogievskiy wrote:
Also, could/should I run all these test pipelines on gitlab by hand before sending a PULL
request? Or can I rerun them on my qemu fork for debugging?
The first thing I'd try is make vm-build- and make
docker-test-full@.
Either or both will
On 2022/6/14 下午10:14, Dr. David Alan Gilbert wrote:
I don't think we can tell which one of them triggered the error; so the
only thing I can suggest is that we document the need for optmem_max
setting; I wonder how we get a better answer than 'a few 100KB'?
I guess it's something like the number
On 6/15/22 02:44, gaosong wrote:
Hi Richard.
On 2022/6/15 上午12:21, Richard Henderson wrote:
On 6/14/22 02:05, Song Gao wrote:
+#define ELF_HWCAP get_elf_hwcap()
+
+static uint32_t get_elf_hwcap(void)
+{
+ return 0;
+}
This should not be zero. See cpu_probe_common in the kernel. At minim
This patch adds shadow doorbell buffer support in NVMe 1.3 to QEMU
NVMe. The Doorbell Buffer Config admin command is implemented for the
guest to enable shadow doobell buffer. When this feature is enabled, each
SQ/CQ is associated with two buffers, i.e., Shadow Doorbell buffer and
EventIdx buffer.
Implement Doorbel Buffer Config command (Section 5.7 in NVMe Spec 1.3)
and Shadow Doorbel buffer & EventIdx buffer handling logic (Section 7.13
in NVMe Spec 1.3). For queues created before the Doorbell Buffer Config
command, the nvme_dbbuf_config function tries to associate each existing
SQ and CQ
When shadow doorbell buffer is enabled, doorbell registers are lazily
updated. The actual queue head and tail pointers are stored in Shadow
Doorbell buffers.
Add trace events for updates on the Shadow Doorbell buffers and EventIdx
buffers. Also add trace event for the Doorbell Buffer Config comman
Provide the cpr-save, cpr-exec, and cpr-load commands for live update.
These save and restore VM state, with minimal guest pause time, so that
qemu may be updated to a new version in between.
cpr-save stops the VM and saves vmstate to an ordinary file. It supports
any type of guest image and bloc
Add qemu_file_open and qemu_fd_open to create QEMUFile objects for unix
files and file descriptors.
Signed-off-by: Steve Sistare
---
migration/qemu-file-channel.c | 36
migration/qemu-file-channel.h | 6 ++
2 files changed, 42 insertions(+)
diff --git a
Add an interface to register a blocker for cpr-save for one or more modes.
Devices and options that do not support a cpr mode can register a blocker,
and cpr-save will fail with a descriptive error message. Conversely, if
such a device is deleted and un-registers its blocker, cpr will be allowed
a
> On Jun 15, 2022, at 5:38 PM, Klaus Jensen wrote:
>
> I prefer we use the NVMe terminology to minimize misunderstandings, so
> "host" means the driver and "device" means the qemu side of things
>
Thanks for helping me disambiguate this!
Now that we have resolved all issues in v1, I’ve subm
Add an iterator over the sections of a flattened address space.
Signed-off-by: Steve Sistare
Reviewed-by: Marc-André Lureau
---
include/exec/memory.h | 31 +++
softmmu/memory.c | 20
2 files changed, 51 insertions(+)
diff --git a/include/ex
Add the '-cpr-enable ' command-line option as a pre-requisite for
using cpr-save and cpr-load for the mode. Multiple -cpr-enable options
may be specified, one per mode.
Requiring -cpr-enable allows qemu to initialize objects differently, if
necessary, so that cpr-save is not blocked.
Signed-off-
Add an interface to register notifiers for cpr transitions. It is used to
support vfio cpr in a subsequent patch.
Signed-off-by: Steve Sistare
---
include/migration/cpr.h | 13 +
migration/cpr.c | 25 +
stubs/cpr.c | 10 ++
3 files
Use qemu_file_open to simplify a few functions in savevm.c.
No functional change.
Signed-off-by: Steve Sistare
Reviewed-by: Dr. David Alan Gilbert
---
migration/savevm.c | 20 ++--
1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/migration/savevm.c b/migration/save
cpr must save state that is needed after qemu is restarted, when devices are
realized. Thus the extra state cannot be saved in the cpr-load vmstate file,
as objects must already exist before that file can be loaded. Instead,
define auxilliary state structures and vmstate descriptions, not associa
Signed-off-by: Steve Sistare
---
MAINTAINERS | 1 +
tests/unit/meson.build| 1 +
tests/unit/test-strlist.c | 81 +++
3 files changed, 83 insertions(+)
create mode 100644 tests/unit/test-strlist.c
diff --git a/MAINTAINERS b/MAINTAIN
Add a vmstate handler to save volatile ram blocks in the state file. This
is used to preserve secondary guest ram blocks (those that cannot be
specified on the command line) such as video ram and roms for cpr reboot,
as there is no option to allocate them in shared memory. For efficiency,
the use
Provide the cpr-save and cpr-load functions for live update. These save and
restore VM state, with minimal guest pause time, so that qemu may be updated
to a new version in between.
cpr-save stops the VM and saves vmstate to an ordinary file. It supports
any type of guest image and block device,
Define qemu_clear_cloexec, analogous to qemu_set_cloexec.
Reviewed-by: Dr. David Alan Gilbert
Signed-off-by: Steve Sistare
---
include/qemu/osdep.h | 1 +
util/oslib-posix.c | 9 +
util/oslib-win32.c | 4
3 files changed, 14 insertions(+)
diff --git a/include/qemu/osdep.h b/in
A vhost device is implicitly preserved across re-exec because its fd is not
closed, and the value of the fd is specified on the command line for the
new qemu to find. However, new qemu issues an VHOST_RESET_OWNER ioctl,
which fails because the device already has an owner. To fix, reset the
owner
Add a qemu_system_exec_request() hook that causes the main loop to exit and
re-exec qemu using the specified arguments.
Signed-off-by: Steve Sistare
---
include/sysemu/runstate.h | 1 +
softmmu/runstate.c| 26 ++
2 files changed, 27 insertions(+)
diff --git a/in
Register the known cpr blockers.
Signed-off-by: Steve Sistare
---
accel/xen/xen-all.c| 3 +++
backends/hostmem-epc.c | 6 ++
migration/migration.c | 6 ++
replay/replay.c| 4
4 files changed, 19 insertions(+)
diff --git a/accel/xen/xen-all.c b/accel/xen/xen-all.c
index
Unlike reboot mode, restart mode cannot save volatile ram blocks in the
vmstate file and recreate them later, because the physical memory for the
blocks is pinned and registered for vfio. Add a restart-mode blocker for
volatile ram blocks.
Signed-off-by: Steve Sistare
---
include/exec/memory.h
Generalize strList_from_comma_list() to take any delimiter character, rename
as strList_from_string(), and move it to qapi/util.c.
No functional change.
Signed-off-by: Steve Sistare
---
include/qapi/util.h | 9 +
monitor/hmp-cmds.c | 29 ++---
qapi/qapi-util.c
Preserve vfio INTX state across cpr restart. Preserve VFIOINTx fields as
follows:
pin : Recover this from the vfio config in kernel space
interrupt : Preserve its eventfd descriptor across exec.
unmask : Ditto
route.irq : This could perhaps be recovered in vfio_pci_post_load by
calling
Reported-by: Zheng Chuan
Signed-off-by: Steve Sistare
---
hw/core/loader.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 0548830..7b39c07 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -51,6 +51,7 @@
#include "hw/hw.h"
Provide the cpr-save restart mode, which preserves the guest VM across a
restart of the qemu process. After cpr-save, the caller passes qemu
command-line arguments to cpr-exec, which directly exec's the new qemu
binary. The arguments must include -S so new qemu starts in a paused state.
The calle
Preserve memory-backend-memfd memory objects during cpr.
Signed-off-by: Steve Sistare
---
backends/hostmem-memfd.c | 21 -
hmp-commands.hx | 2 +-
qapi/cpr.json| 2 +-
3 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/backends/hostmem-mem
cpr-save
mode may be "restart"
cpr-exec
Call qmp_cpr_exec().
Arguments:
command : command line to execute, with space-separated arguments
Signed-off-by: Steve Sistare
---
hmp-commands.hx | 29 ++---
include/monitor/hmp.h | 1 +
monitor/hmp-cmds.c|
Enable vfio-pci devices to be saved and restored across an exec restart
of qemu.
At vfio creation time, save the value of vfio container, group, and device
descriptors in cpr state.
In the container pre_save handler, suspend the use of virtual addresses in
DMA mappings with VFIO_DMA_UNMAP_FLAG_VA
Add QEMU_CHAR_FEATURE_CPR for devices that support cpr by preserving an
open descriptor across exec. Add the chardev reopen-on-cpr option for
devices that should be closed on cpr and reopened after exec.
Enable cpr for a chardev if it has QEMU_CHAR_FEATURE_CPR and reopen-on-cpr
is false. Allow c
Export msix_is_pending for use by cpr. No functional change.
Signed-off-by: Steve Sistare
---
hw/pci/msix.c | 2 +-
include/hw/pci/msix.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/pci/msix.c b/hw/pci/msix.c
index ae9331c..e492ce0 100644
--- a/hw/pci/msix.c
Save accepted socket fds before cpr-save, and look for them after cpr-load.
Block cpr-exec if a socket enables the TLS or websocket option. Allow a
monitor socket by closing it on exec.
Signed-off-by: Mark Kanda
Signed-off-by: Steve Sistare
---
chardev/char-socket.c | 45 ++
If vfio_cpr_save fails to unmap all vaddr's, then recover by walking all
flat sections to restore the vaddr for each. Do so by invoking the
vfio listener callback, and passing a new "replay" flag that tells it
to replay a mapping without re-allocating new userland data structures.
Signed-off-by:
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