On Wed, Sep 25, 2024 at 12:03 PM Michael Tokarev wrote:
>
> 19.08.2024 16:54, Mattias Nissler wrote:
> > When DMA memory can't be directly accessed, as is the case when
> > running the device model in a separate process without shareable DMA
> > file descript
> On 16/09/2024 18:57, Mattias Nissler wrote:
>
> > These were passing a NULL buffer pointer unconditionally, which happens
> > to behave in a mostly benign way (except for the chance of an excess
> > memory region unref and a bounce buffer leak). Per the function comment
"softmmu: Support concurrent bounce buffers" change.
Given that the code in question never sets up any mappings, just remove
the unnecessary dma_memory_unmap calls along with the DBDMA_io struct
fields that are now entirely unused.
Signed-off-by: Mattias Nissler
---
hw/ide/macio.c
On Mon, Sep 16, 2024 at 3:06 PM Cédric Le Goater wrote:
>
> On 9/16/24 14:41, Mattias Nissler wrote:
> > Thanks Cédric, I can reproduce now, and my proposed patch fixes avoids
> > the crash as expected.
> disk images for macos9 and macosx10 all boot.
Thanks for testing, happ
On Mon, Sep 16, 2024 at 2:28 PM Peter Maydell wrote:
>
> On Mon, 16 Sept 2024 at 13:14, Mark Cave-Ayland
> wrote:
> >
> > On 16/09/2024 12:44, Peter Maydell wrote:
> >
> > > On Mon, 16 Sept 2024 at 12:29, Mark Cave-Ayland
> > > wrote:
> > >> I'm fairly sure that this patch would break MacOS 9 wh
Thanks Cédric, I can reproduce now, and my proposed patch fixes avoids
the crash as expected.
On Mon, Sep 16, 2024 at 2:28 PM Cédric Le Goater wrote:
>
> Mattias,
>
>
> > Cédric, can you try with the above patch and/or
> >
> > crash seems gone.
> >
> >> share more details of your setup so I can v
On Mon, Sep 16, 2024 at 11:05 AM Peter Maydell wrote:
>
> On Mon, 16 Sept 2024 at 08:35, Mattias Nissler wrote:
> >
> > On Fri, Sep 13, 2024 at 6:47 PM Peter Maydell
> > wrote:
> > >
> > > On Fri, 13 Sept 2024 at 16:55, Peter Xu wrote:
> > >
Thanks for the report, and my apologies for the breakage.
On Fri, Sep 13, 2024 at 4:47 PM Peter Xu wrote:
>
> On Fri, Sep 13, 2024 at 04:35:32PM +0200, Cédric Le Goater wrote:
> > Hello,
> >
> > +Mark (for the Mac devices)
> >
> > On 9/9/24 22:11, Peter X
On Fri, Sep 13, 2024 at 6:47 PM Peter Maydell wrote:
>
> On Fri, 13 Sept 2024 at 16:55, Peter Xu wrote:
> >
> > On Thu, Sep 12, 2024 at 03:27:55PM +0100, Peter Maydell wrote:
> > > Coverity is pretty unhappy about this trick, because it isn't able
> > > to recognise that we can figure out the add
On Wed, Sep 11, 2024 at 12:24 PM Michael S. Tsirkin wrote:
>
> On Tue, Sep 10, 2024 at 11:36:08PM +0200, Mattias Nissler wrote:
> > On Tue, Sep 10, 2024 at 6:40 PM Michael S. Tsirkin wrote:
> > >
> > > On Tue, Sep 10, 2024 at 06:10:50PM +0200, Mattias Nissler wrote
On Tue, Sep 10, 2024 at 6:40 PM Michael S. Tsirkin wrote:
>
> On Tue, Sep 10, 2024 at 06:10:50PM +0200, Mattias Nissler wrote:
> > On Tue, Sep 10, 2024 at 5:44 PM Peter Maydell
> > wrote:
> > >
> > > On Tue, 10 Sept 2024 at 15:53, Michael S. Tsirkin wrote:
Clarify how the parameter gets configured and how it is used when
servicing DMA mapping requests targeting indirect memory regions.
Signed-off-by: Mattias Nissler
---
include/exec/memory.h | 9 -
include/hw/pci/pci_device.h | 6 +-
2 files changed, 13 insertions(+), 2
On Tue, Sep 10, 2024 at 5:44 PM Peter Maydell wrote:
>
> On Tue, 10 Sept 2024 at 15:53, Michael S. Tsirkin wrote:
> >
> > On Mon, Aug 19, 2024 at 06:54:54AM -0700, Mattias Nissler wrote:
> > > When DMA memory can't be directly accessed, as is the case when
>
ed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a6
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Reviewed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 fi
ix, this is now working
as originally intended.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 8
1 file changed, 8 insertions(+)
diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
index 0e93d7a7b4..d347a96e39 100644
--- a/hw/remote/vfio-user-obj.c
+++ b
ted
vfio-user-server auto-shutdown from working.
Mattias Nissler (3):
Update subprojects/libvfio-user
vfio-user: Message-based DMA support
vfio-user: Fix memory region reference accounting
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 108 ++
t to the latest
libvfio-user revision.
* Break out the "softmmu: Support concurrent bounce buffers" patch so this
series only touches vfio-user code and can be picked up as is by Jag.
Mattias Nissler (2):
Update subprojects/libvfio-user
vfio-user: Message-based DMA support
hw/remote
ed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a6
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Reviewed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 fi
s.
Signed-off-by: Mattias Nissler
Reviewed-by: Philippe Mathieu-Daudé
Acked-by: Peter Xu
---
This patch is split out from my "Support message-based DMA in vfio-user server"
series. With the series having been partially applied, I'm splitting this one
out as the only remaining patch
this patch.
Thanks,
Mattias
[1] https://lists.nongnu.org/archive/html/qemu-devel/2024-05/msg01712.html
On Wed, May 8, 2024 at 8:33 AM Mattias Nissler wrote:
>
> On Tue, May 7, 2024 at 4:46 PM Philippe Mathieu-Daudé
> wrote:
> >
> > On 7/5/24 16:04, Mattias Nissler wrote:
On Wed, May 8, 2024 at 11:16 PM Philippe Mathieu-Daudé
wrote:
>
> On 7/5/24 16:34, Mattias Nissler wrote:
> > This series adds basic support for message-based DMA in qemu's vfio-user
> > server. This is useful for cases where the client does not provide file
> > des
On Tue, May 7, 2024 at 4:46 PM Philippe Mathieu-Daudé wrote:
>
> On 7/5/24 16:04, Mattias Nissler wrote:
> > On Tue, May 7, 2024 at 2:57 PM Philippe Mathieu-Daudé
> > wrote:
> >>
> >> On 7/5/24 11:42, Mattias Nissler wrote:
> >>> When DMA memory
ed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a6
-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
index a15e291c9a..0e93d7a7b4 100644
--- a/hw/remote/vfio-user-obj.c
+++ b/hw/remote/vfio-user-obj.c
@@ -281,7 +281,7
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
system/memory.c | 5 ++-
system/physmem.c| 82 ++---
5 files changed, 76 inserti
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Reviewed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 fi
ch split and QEMU_MUTEX_GUARD change by phi...@linaro.org
* Use size_t instead of uint32_t for bounce buffer size accounting. The qdev
property remains uint32_t though, so it has a consistent size regardless of
host.
Mattias Nissler (6):
system/physmem: Propagate AddressSpace to MapClient hel
Peter Xu
Tested-by: Jonathan Cameron
Signed-off-by: Mattias Nissler
Message-ID: <20240507094210.300566-2-mniss...@rivosinc.com>
[PMD: Split patch, part 1/2]
Signed-off-by: Philippe Mathieu-Daudé
Reviewed-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 --
incl
Nissler
Reviewed-by: Mattias Nissler
---
system/physmem.c | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/system/physmem.c b/system/physmem.c
index d3a3d8a45c..5486014cf2 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -3086,7 +3086,7 @@ void
configured per AddressSpace.
Reviewed-by: Peter Xu
Tested-by: Jonathan Cameron
Signed-off-by: Mattias Nissler
Message-ID: <20240507094210.300566-2-mniss...@rivosinc.com>
[PMD: Split patch, part 2/2]
Signed-off-by: Philippe Mathieu-Daudé
Reviewed-by: Philippe Mathieu-Daudé
Reviewed-by: M
On Tue, May 7, 2024 at 4:02 PM Philippe Mathieu-Daudé wrote:
>
> On 7/5/24 14:47, Mattias Nissler wrote:
> > On Tue, May 7, 2024 at 2:30 PM Philippe Mathieu-Daudé
> > wrote:
> >>
> >> Respin of Mattias patch [1 split to ease review.
> >>
On Tue, May 7, 2024 at 2:57 PM Philippe Mathieu-Daudé wrote:
>
> On 7/5/24 11:42, Mattias Nissler wrote:
> > When DMA memory can't be directly accessed, as is the case when
> > running the device model in a separate process without shareable DMA
> > file descript
On Tue, May 7, 2024 at 2:52 PM Philippe Mathieu-Daudé wrote:
>
> On 7/5/24 11:43, Mattias Nissler wrote:
> >
> >
> > On Mon, May 6, 2024 at 11:07 PM Mattias Nissler > <mailto:mniss...@rivosinc.com>> wrote:
> >
> >
> >
> >
t;
> Regards,
>
> Phil.
>
> [1
> https://lore.kernel.org/qemu-devel/20240507094210.300566-2-mniss...@rivosinc.com/
> [2]
> https://lore.kernel.org/qemu-devel/20240507094210.300566-6-mniss...@rivosinc.com/
>
> Mattias Nissler (2):
> system/physmem: Propagate Addre
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Reviewed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 fi
-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
index a15e291c9a..0e93d7a7b4 100644
--- a/hw/remote/vfio-user-obj.c
+++ b/hw/remote/vfio-user-obj.c
@@ -281,7 +281,7
On Mon, May 6, 2024 at 11:07 PM Mattias Nissler
wrote:
>
>
> On Mon, May 6, 2024 at 4:44 PM Peter Xu wrote:
>
>> On Thu, Mar 28, 2024 at 08:53:36AM +0100, Mattias Nissler wrote:
>> > Stefan, to the best of my knowledge this is fully reviewed and ready
>> >
configured per AddressSpace.
Reviewed-by: Peter Xu
Tested-by: Jonathan Cameron
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
system/dma-helpers.c | 4 +-
system/memory.c | 7 +++
system/physmem.c
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
system/memory.c | 5 ++-
system/physmem.c| 82 ++---
5 files changed, 76 inserti
ed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a6
lean)
* Change bounce buffer size accounting to use uint32_t so it works also on
hosts that don't support uint64_t atomics, such as mipsel. As a consequence
overflows are a real concern now, so switch to a cmpxchg loop for allocating
bounce buffer space.
Mattias Nissler (5):
softmmu: Per-
On Mon, May 6, 2024 at 4:44 PM Peter Xu wrote:
> On Thu, Mar 28, 2024 at 08:53:36AM +0100, Mattias Nissler wrote:
> > Stefan, to the best of my knowledge this is fully reviewed and ready
> > to go in - can you kindly pick it up or advise in case there's
> > something I
On Mon, May 6, 2024 at 5:01 PM Stefan Hajnoczi wrote:
> On Thu, 28 Mar 2024 at 03:54, Mattias Nissler
> wrote:
> >
> > Stefan, to the best of my knowledge this is fully reviewed and ready
> > to go in - can you kindly pick it up or advise in case there's
> > s
Stefan, to the best of my knowledge this is fully reviewed and ready
to go in - can you kindly pick it up or advise in case there's
something I missed? Thanks!
On Mon, Mar 4, 2024 at 11:25 AM Peter Xu wrote:
>
> On Mon, Mar 04, 2024 at 02:05:49AM -0800, Mattias Nissler wrote:
>
configured per AddressSpace.
Reviewed-by: Peter Xu
Tested-by: Jonathan Cameron
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
system/dma-helpers.c | 4 +-
system/memory.c | 7 +++
system/physmem.c
Reviewed-by: Peter Xu
Tested-by: Jonathan Cameron
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
system/memory.c | 5 ++-
system/physmem.c
ed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a6
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Reviewed-by: Jagannathan Raman
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 fi
-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/remote/vfio-user-obj.c b/hw/remote/vfio-user-obj.c
index a15e291c9a..0e93d7a7b4 100644
--- a/hw/remote/vfio-user-obj.c
+++ b/hw/remote/vfio-user-obj.c
@@ -281,7 +281,7
ightforward merge conflict in system/dma-helpers.c
Changes from v7:
* Rebase (applied cleanly)
* Restore various Reviewed-by and Tested-by tags that I failed to carry
forward (I double-checked that the patches haven't changed since the reviewed
version)
Mattias Nissler (5):
softmmu:
On Thu, Feb 29, 2024 at 1:35 PM Peter Maydell wrote:
>
> On Thu, 29 Feb 2024 at 11:17, Heinrich Schuchardt
> wrote:
> > > But yes, I'm not surprised that CXL runs into this. Heinrich,
> > > are you doing CXL testing, or is this some other workload?
> >
> > I am running the UEFI Self-Certification
On Thu, Feb 29, 2024 at 12:12 PM Peter Maydell wrote:
>
> On Thu, 29 Feb 2024 at 10:59, Jonathan Cameron
> wrote:
> >
> > On Thu, 29 Feb 2024 09:38:29 +
> > Peter Maydell wrote:
> >
> > > On Wed, 28 Feb 2024 at 19:07, Heinrich Schuchardt
> > > wrote:
> > > >
> > > > On 28.02.24 19:39, Peter
o to speak up if you disagree.
Thanks,
Mattias
On Tue, Feb 20, 2024 at 6:06 AM Peter Xu wrote:
>
> On Mon, Feb 12, 2024 at 12:06:12AM -0800, Mattias Nissler wrote:
> > Changes from v6:
> >
> > * Rebase, resolve straightforward merge conflict in system/dma-helpers.c
>
On Thu, Feb 29, 2024 at 11:22 AM Heinrich Schuchardt
wrote:
>
> On 29.02.24 02:11, Peter Xu wrote:
> > On Wed, Feb 28, 2024 at 08:07:47PM +0100, Heinrich Schuchardt wrote:
> >> On 28.02.24 19:39, Peter Maydell wrote:
> >>> On Wed, 28 Feb 2024 at 18:28, Heinrich Schuchardt
> >>> wrote:
>
> >>
On Thu, Feb 15, 2024 at 4:29 PM Jonathan Cameron <
jonathan.came...@huawei.com> wrote:
> On Thu, 8 Feb 2024 14:50:59 +
> Jonathan Cameron wrote:
>
> > On Wed, 7 Feb 2024 17:34:15 +
> > Jonathan Cameron wrote:
> >
> > > On Fri, 2 Feb 2024 16:56:18 +
> > > Peter Maydell wrote:
> > >
>
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 file changed, 1 insertion(+), 1 de
es cleanly to
master due to a minor merge conflict. I've just sent a rebased version to
address that.
Stefan, are you OK to pick this up for merging at your next convenience?
Thanks,
Mattias
On Fri, Feb 9, 2024 at 6:39 PM Jonathan Cameron
wrote:
> On Wed, 1 Nov 2023 06:16:06 -0700
configured per AddressSpace.
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
system/dma-helpers.c | 4 +-
system/memory.c | 7 +++
system/physmem.c | 101 --
5
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
system/memory.c | 5 ++-
system/physmem.c| 80 +
5 files changed, 74 inserti
ff-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a68fb34 100644
--- a/hw/remote/
ightforward merge conflict in system/dma-helpers.c
Mattias Nissler (5):
softmmu: Per-AddressSpace bounce buffering
softmmu: Support concurrent bounce buffers
Update subprojects/libvfio-user
vfio-user: Message-based DMA support
vfio-user: Fix config space access byte order
hw/pci/pci.c
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 file changed, 1 insertion(+), 1 de
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
system/memory.c | 5 ++-
system/physmem.c| 80 +
5 files changed, 74 inserti
ff-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 100 --
2 files changed, 87 insertions(+), 15 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a68fb34 100644
--- a/hw/remote/
configured per AddressSpace.
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
system/dma-helpers.c | 4 +-
system/memory.c | 7 +++
system/physmem.c | 101 --
5
e been reviewed appropriately, so my
hope is that this will be the final iteration. Stefan, Peter, Jag, thanks for
your feedback, let me know if there's anything else needed from my side before
this can get merged.
Mattias Nissler (5):
softmmu: Per-AddressSpace bounce buffering
softmmu:
On Fri, Oct 6, 2023 at 1:51 PM Shunsuke Mie wrote:
>
>
> On 2023/10/05 16:02, Mattias Nissler wrote:
> > On Thu, Oct 5, 2023 at 3:31 AM Shunsuke Mie wrote:
> >> Hi Jiri, Mattias and all.
> >>
> >> 2023年10月4日(水) 16:36 Mattias Nissler :
> >>>
On Wed, Oct 4, 2023 at 4:54 PM Jag Raman wrote:
>
>
> > On Sep 20, 2023, at 4:06 AM, Mattias Nissler
> wrote:
> >
> > Wire up support for DMA for the case where the vfio-user client does not
> > provide mmap()-able file descriptors, but DMA requests must b
On Thu, Oct 5, 2023 at 6:30 PM Jag Raman wrote:
>
>
> > On Sep 20, 2023, at 4:06 AM, Mattias Nissler
> wrote:
> >
> > PCI config space is little-endian, so on a big-endian host we need to
> > perform byte swaps for values as they are passed to and received from
On Thu, Oct 5, 2023 at 3:31 AM Shunsuke Mie wrote:
>
> Hi Jiri, Mattias and all.
>
> 2023年10月4日(水) 16:36 Mattias Nissler :
>>>
>>> hi shunsuke, all,
>>> what about vfio-user + qemu?
>
> Thank you for the suggestion.
>
>> FWIW, I have ha
>
> hi shunsuke, all,
> what about vfio-user + qemu?
>
FWIW, I have had some good success using VFIO-user to bridge software
components to hardware designs. For the most part, I have been hooking up
software endpoint models to hardware design components speaking the PCIe
transaction layer protocol
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++
include/hw/pci/pci_device.h | 3 ++
softmmu/memory.c| 5 ++-
softmmu/physmem.c | 80 +
5 files changed, 74 inserti
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2
configured per AddressSpace.
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
softmmu/dma-helpers.c | 4 +-
softmmu/memory.c | 7 +++
softmmu/physmem.c | 101 --
5
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 file changed, 1 insertion(+), 1 de
xes.
Changes from v4:
* Fix accidentally dropped memory_region_unref, control flow restored to match
previous code to simplify review.
* Some cosmetic fixes.
Mattias Nissler (5):
softmmu: Per-AddressSpace bounce buffering
softmmu: Support concurrent bounce buffers
Update subprojects/libv
ff-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 84 +++
2 files changed, 79 insertions(+), 7 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a68fb34 100644
--- a/hw/remote/trace-e
On Tue, Sep 19, 2023 at 7:14 PM Peter Xu wrote:
>
> On Tue, Sep 19, 2023 at 09:08:10AM -0700, Mattias Nissler wrote:
> > @@ -3119,31 +3143,35 @@ void *address_space_map(AddressSpace *as,
> > void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
> >
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 +++---
include/hw/pci/pci_device.h | 3 ++
softmmu/memory.c| 5 ++-
softmmu/physmem.c | 88 -
5 files changed, 77 inserti
ocket pair"
Adds support for separate sockets for either command direction,
addressing a bug where libvfio-user gets confused if both client and
server send commands concurrently.
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 file changed, 1 insertion(+), 1 de
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2
ff-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 84 +++
2 files changed, 79 insertions(+), 7 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a68fb34 100644
--- a/hw/remote/trace-e
server->client DMA access commands. See
https://github.com/nutanix/libvfio-user/issues/279 for details.
* Add missing teardown code in do_address_space_destroy.
* Fix bounce buffer size bookkeeping race condition.
* Generate unmap notification callbacks unconditionally.
* Some cosmet
configured per AddressSpace.
Signed-off-by: Mattias Nissler
---
include/exec/cpu-common.h | 2 -
include/exec/memory.h | 45 -
softmmu/dma-helpers.c | 4 +-
softmmu/memory.c | 7 +++
softmmu/physmem.c | 103 --
5
On Fri, Sep 15, 2023 at 10:37 AM Mattias Nissler wrote:
>
> On Wed, Sep 13, 2023 at 8:30 PM Peter Xu wrote:
> >
> > On Thu, Sep 07, 2023 at 06:04:06AM -0700, Mattias Nissler wrote:
> > > @@ -3105,6 +3105,9 @@ void address_space_init(AddressSpace *as,
> > >
On Thu, Sep 14, 2023 at 10:32 PM Stefan Hajnoczi wrote:
>
> On Thu, Sep 07, 2023 at 06:04:10AM -0700, Mattias Nissler wrote:
> > PCI config space is little-endian, so on a big-endian host we need to
> > perform byte swaps for values as they are passed to and received from
&
On Thu, Sep 14, 2023 at 9:04 PM Stefan Hajnoczi wrote:
>
> On Thu, Sep 07, 2023 at 06:04:09AM -0700, Mattias Nissler wrote:
> > Wire up support for DMA for the case where the vfio-user client does not
> > provide mmap()-able file descriptors, but DMA requests must be performe
On Thu, Sep 14, 2023 at 8:49 PM Stefan Hajnoczi wrote:
>
> On Thu, Sep 07, 2023 at 06:04:07AM -0700, Mattias Nissler wrote:
> > When DMA memory can't be directly accessed, as is the case when
> > running the device model in a separate process without shareable DMA
>
On Wed, Sep 13, 2023 at 9:11 PM Peter Xu wrote:
>
> On Thu, Sep 07, 2023 at 06:04:07AM -0700, Mattias Nissler wrote:
> > When DMA memory can't be directly accessed, as is the case when
> > running the device model in a separate process without shareable DMA
> > file
On Wed, Sep 13, 2023 at 8:30 PM Peter Xu wrote:
>
> On Thu, Sep 07, 2023 at 06:04:06AM -0700, Mattias Nissler wrote:
> > @@ -3105,6 +3105,9 @@ void address_space_init(AddressSpace *as,
> > MemoryRegion *root, const char *name)
> > as->ioeventfds = NULL;
> >
On Thu, Sep 14, 2023 at 4:39 PM Stefan Hajnoczi wrote:
>
> On Thu, Sep 07, 2023 at 06:04:05AM -0700, Mattias Nissler wrote:
> > This series adds basic support for message-based DMA in qemu's vfio-user
> > server. This is useful for cases where the client does not provide f
ff-by: Mattias Nissler
---
hw/remote/trace-events| 2 +
hw/remote/vfio-user-obj.c | 84 +++
2 files changed, 79 insertions(+), 7 deletions(-)
diff --git a/hw/remote/trace-events b/hw/remote/trace-events
index 0d1b7d56a5..358a68fb34 100644
--- a/hw/remote/trace-e
Brings in assorted bug fixes. In particular, "Fix address calculation
for message-based DMA" corrects a bug in DMA address calculation which
is necessary to get DMA across VFIO-user messages working.
Signed-off-by: Mattias Nissler
---
subprojects/libvfio-user.wrap | 2 +-
1 file
s.
Signed-off-by: Mattias Nissler
---
hw/pci/pci.c| 8
include/exec/memory.h | 14 ++
include/hw/pci/pci_device.h | 3 ++
softmmu/memory.c| 3 +-
softmmu/physmem.c | 94 +
5 files changed, 80 inserti
in first bytes of bounce buffer struct as a best effort
measure to detect invalid pointers in address_space_unmap.
Mattias Nissler (5):
softmmu: Per-AddressSpace bounce buffering
softmmu: Support concurrent bounce buffers
Update subprojects/libvfio-user
vfio-user: Message-based DMA suppor
PCI config space is little-endian, so on a big-endian host we need to
perform byte swaps for values as they are passed to and received from
the generic PCI config space access machinery.
Signed-off-by: Mattias Nissler
---
hw/remote/vfio-user-obj.c | 4 ++--
1 file changed, 2 insertions(+), 2
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