13.02.2025 17:35, Fabiano Rosas wrote:
When complying with the alignment requested in the ELF and unmapping
the excess reservation, having align_end not aligned to the guest page
causes the unmap to be rejected by the alignment check at
target_munmap and later brk adjustments hit an EEXIST.
Fix
Am 19.02.25 um 08:01 schrieb Pierrick Bouvier:
On 2/18/25 22:39, Stefan Weil wrote:
Am 19.02.25 um 00:17 schrieb Pierrick Bouvier:
On 2/18/25 12:59, Stefan Weil wrote:
I could run a QEMU cross compile on Debian with the llvm toolchain and
msys2 clangarm64 packages installed with pacman. The
The x86 variant of the device is mapped on the fixed address 0xfef1
and uses etc/hardware-info instead of FDT to pass the mapping location
to the edk2 firmware. The latter allows to move the device to a
different location should that turn out to be necessary in the future.
Signed-off-by: Gerd
Add and register function to create an device tree entry when
the device is added to the qemu platform bus.
Signed-off-by: Gerd Hoffmann
---
hw/core/sysbus-fdt.c | 24
hw/uefi/var-service-sysbus.c | 1 +
2 files changed, 25 insertions(+)
diff --git a/hw/core/sy
Wire up uefi-vars in the build system.
Signed-off-by: Gerd Hoffmann
---
hw/meson.build | 1 +
hw/uefi/meson.build | 19 +++
meson.build | 1 +
3 files changed, 21 insertions(+)
diff --git a/hw/meson.build b/hw/meson.build
index b827c82c5d7b..138f5d59e178 100644
--
Signed-off-by: Gerd Hoffmann
---
MAINTAINERS | 6 ++
1 file changed, 6 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 3848d37a38d2..56a3ca1afd0c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2801,6 +2801,12 @@ F: hw/misc/ivshmem-flat.c
F: include/hw/misc/ivshmem-flat.h
F: docs
pkcs7 stub which is used in case gnutls is not available.
It throws EFI_WRITE_PROTECTED errors unconditionally, so all
authenticated variables are readonly for the guest.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-pkcs7-stub.c | 16
1 file changed, 16 insertions(+)
c
This is the core code for guest <-> host communication. This accepts
request messages from the guest, dispatches them to the service called,
and sends back the response message.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-core.c | 321 +
1 file chang
Define qapi schema for the uefi variable store state.
Use it and the generated visitor helper functions to store persistent
(EFI_VARIABLE_NON_VOLATILE) variables in JSON format on disk.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-json.c | 243 +
qapi
Functions to serialize and de-serialize EFI signature databases. This
is needed to merge signature databases (happens in practice when
appending dbx updates) and also to extract the certificates for
pkcs7 signature verification.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-siglist.c | 2
Allow the device being added to x86_64 pc and q35 VMs.
Signed-off-by: Gerd Hoffmann
---
hw/i386/pc_piix.c | 2 ++
hw/i386/pc_q35.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 04d2957adcd7..6c91e2d29298 100644
--- a/hw/i386/pc_piix.c
+++ b/h
Add UEFI_VARS config option, enable by default for x86_64 and aarch64.
Signed-off-by: Gerd Hoffmann
---
hw/Kconfig | 1 +
hw/uefi/Kconfig | 3 +++
2 files changed, 4 insertions(+)
create mode 100644 hw/uefi/Kconfig
diff --git a/hw/Kconfig b/hw/Kconfig
index 1b4e9bb07f7d..c4dfe2e7af7c 1006
A bunch of #defines and structs copied over from edk2,
mostly needed to decode and encode the messages in the
communication buffer.
Signed-off-by: Gerd Hoffmann
---
include/hw/uefi/var-service-edk2.h | 227 +
1 file changed, 227 insertions(+)
create mode 100644 inclu
Add trace events for debugging and trouble shooting.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/trace-events | 17 +
1 file changed, 17 insertions(+)
create mode 100644 hw/uefi/trace-events
diff --git a/hw/uefi/trace-events b/hw/uefi/trace-events
new file mode 100644
index 00
This adds sysbus bindings for the variable service.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-sysbus.c | 91
hw/uefi/meson.build | 3 +-
2 files changed, 93 insertions(+), 1 deletion(-)
create mode 100644 hw/uefi/var-service-sysbus.c
di
This is the uefi variable service (EfiSmmVariableProtocol), providing
functions for listing, reading and updating variables.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-vars.c | 725 +
1 file changed, 725 insertions(+)
create mode 100644 hw/uefi/var-
Signed-off-by: Gerd Hoffmann
---
docs/devel/index-internals.rst | 1 +
docs/devel/uefi-vars.rst | 68 ++
hw/uefi/LIMITATIONS.md | 7
3 files changed, 76 insertions(+)
create mode 100644 docs/devel/uefi-vars.rst
create mode 100644 hw/uefi/LIMI
This implements authenticated variable handling (see AuthVariableLib in
edk2).
The by far most common use case for auth variables is secure boot. The
secure boot certificate databases ('PK', 'KEK', 'db' and 'dbx') are
authenticated variables, with update rules being specified in the UEFI
specific
Implement variable policies (Edk2VariablePolicyProtocol).
This EFI protocol allows to define restrictions for variables.
It also allows to lock down variables (disallow write access).
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-policy.c | 370 +++
1 file
This implements pkcs7 signature verification using gnutls.
Needed to check authenticated variable updates.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-pkcs7.c | 436
1 file changed, 436 insertions(+)
create mode 100644 hw/uefi/var-service-pkcs7.c
d
Allow the device being added to aarch64 virt VMs.
Signed-off-by: Gerd Hoffmann
---
hw/arm/virt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 4a5a9666e916..046835836fc5 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -81,6 +81,7 @@
#include "hw/mem
Add variables for a bunch of UEFI GUIDs we will need.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-guid.c | 99 ++
1 file changed, 99 insertions(+)
create mode 100644 hw/uefi/var-service-guid.c
diff --git a/hw/uefi/var-service-guid.c b/hw/uefi/var-se
This file defines the register interface of the uefi-vars device.
It's only a handful of registers: magic value, command and status
registers, location and size of the communication buffer.
Signed-off-by: Gerd Hoffmann
Reviewed-by: Laszlo Ersek
---
include/hw/uefi/var-service-api.h | 48 +++
edk2 looks for the etc/hardware-info fw_cfg file to discover hardware
which can not easily be found in other ways. Entries consist of a
header with hardware type and entry size (HARDWARE_INFO_HEADER),
followed by the actual hardware description (which is type specific).
The file can have multiple
Add utility functions. Helpers for UEFI (ucs2) string handling.
Helpers for readable trace messages. Compare UEFI time stamps.
Signed-off-by: Gerd Hoffmann
---
hw/uefi/var-service-utils.c | 241
1 file changed, 241 insertions(+)
create mode 100644 hw/uefi/
Add state structs and function declarations for the uefi-vars device.
Signed-off-by: Gerd Hoffmann
---
include/hw/uefi/var-service.h | 191 ++
1 file changed, 191 insertions(+)
create mode 100644 include/hw/uefi/var-service.h
diff --git a/include/hw/uefi/var-ser
This patch adds a virtual device to qemu which the uefi firmware can use
to store variables. This moves the UEFI variable management from
privileged guest code (managing vars in pflash) to the host. Main
advantage is that the need to have privilege separation in the guest
goes away.
On x86 privi
On Tue, 18 Feb 2025 at 16:47, Juraj Marcin wrote:
> > +error_report("%s: unknown channel magic: %u",
> > +__func__, channel_magic);
>
> Here, the number reported in the error will have incorrect endianness on
> a non-BE system. I think it would be be
On 3A5000 system, the physical address space width for host is 48,
however 47 bit for KVM VM. For KVM VM, size of physical address space is
the same with that of virtual user space address.
Here modify physical address space width with 47 bit in KVM mode.
Signed-off-by: Bibo Mao
---
target/loon
On 2/18/25 22:39, Stefan Weil wrote:
Am 19.02.25 um 00:17 schrieb Pierrick Bouvier:
On 2/18/25 12:59, Stefan Weil wrote:
I could run a QEMU cross compile on Debian with the llvm toolchain and
msys2 clangarm64 packages installed with pacman. The resulting installer
is here:
Have you install
On 2/17/2025 1:08 PM, Paolo Bonzini wrote:
It is possible to start QEMU with a confidential-guest-support object
even in TCG mode. While there is already a check in qemu_machine_creation_done:
if (machine->cgs && !machine->cgs->ready) {
error_setg(errp, "accelerator does not suppo
Am 19.02.25 um 00:17 schrieb Pierrick Bouvier:
On 2/18/25 12:59, Stefan Weil wrote:
I could run a QEMU cross compile on Debian with the llvm toolchain and
msys2 clangarm64 packages installed with pacman. The resulting installer
is here:
Have you installed the msys2 clangarm64 packages on a
On 2/19/2025 11:49 AM, Alexey Kardashevskiy wrote:
>
>
> On 19/2/25 12:20, Chenyi Qiang wrote:
>>
>>
>> On 2/18/2025 5:19 PM, Alexey Kardashevskiy wrote:
>>>
>>>
>>
>> [..]
>>
diff --git a/include/system/memory-attribute-manager.h b/include/
system/memory-attribute-manager.h
new
On 2/18/25 19:20, Kevin Wolf wrote:
+/// The described blocks are stored in a child node.
+Data {
+/// Child node in which the data is stored
+node: Arc,
Having Arc<> here shouldn't be necessary, since the BdrvChild is already
reference counted. Since the code is calle
> diff --git a/rust/block/Cargo.toml b/rust/block/Cargo.toml
> new file mode 100644
> index 00..fbc2f2d6ef
> --- /dev/null
> +++ b/rust/block/Cargo.toml
> @@ -0,0 +1,16 @@
> +[package]
> +name = "block"
> +version = "0.1.0"
> +edition = "2021"
> +authors = ["Kevin Wolf "]
> +license = "GPL-
Kindly ping
Thanks everyone
>cmd
On 20/01/2025 18:41, CLEMENT MATHIEU--DRIF wrote:
> From: Clement Mathieu--Drif
>
> This patch set belongs to a list of series that add SVM support for VT-d.
>
> Here we focus on implementing ATS support in the IOMMU and adding a
> PCI-level API to be used by v
On Tue, Feb 18, 2025 at 09:53:00AM +0100, Paolo Bonzini wrote:
> Date: Tue, 18 Feb 2025 09:53:00 +0100
> From: Paolo Bonzini
> Subject: Re: [PATCH] hw/timer/hpet: Detect invalid access to TN registers
>
> On 2/18/25 08:37, Zhao Liu wrote:
> > "addr & 0x18" ignores invalid address, so that the tra
On 19/02/2025 06:40, Peter Xu wrote:
> On Tue, Feb 18, 2025 at 06:03:48PM -0300, Fabiano Rosas wrote:
>> Li Zhijian via writes:
>>
>>> This qtest requirs there is RXE link in the host.
>>>
>>> Here is an example to show how to add this RXE link:
>>> $ ./new-rdma-link.sh
>>> 192.168.22.93
>>>
>>>
On 19/2/25 12:20, Chenyi Qiang wrote:
On 2/18/2025 5:19 PM, Alexey Kardashevskiy wrote:
[..]
diff --git a/include/system/memory-attribute-manager.h b/include/
system/memory-attribute-manager.h
new file mode 100644
index 00..72adc0028e
--- /dev/null
+++ b/include/system/memory-
On Tue, Feb 18, 2025 at 10:07:18AM +0100, Philippe Mathieu-Daudé wrote:
> Date: Tue, 18 Feb 2025 10:07:18 +0100
> From: Philippe Mathieu-Daudé
> Subject: Re: [PATCH] hw/timer/hpet: Detect invalid access to TN registers
>
> On 18/2/25 09:53, Paolo Bonzini wrote:
> > On 2/18/25 08:37, Zhao Liu wrot
With load_elf() API, if input parameter translate_fn is set, loading
address is converted to physical address. It should be the same for entry
address, since MMU is disabled when system power on, the first instruction
of PC should be physical address.
Signed-off-by: Bibo Mao
---
include/hw/elf_o
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.0 for any
user-visible changes.
signature.asc
Description: PGP signature
Applied, thanks.
Please update the changelog at https://wiki.qemu.org/ChangeLog/10.0 for any
user-visible changes.
signature.asc
Description: PGP signature
From: Huaitong Han
The vring call fd is set even when the guest does not use MSIX (e.g., virtio
PMD). This results in unnecessary CPU overhead for handling virtio interrupts.
The previous patch only optimized the condition when query_queue_notifier was
enabled and the vector was unset. However, i
On 2/18/2025 5:19 PM, Alexey Kardashevskiy wrote:
>
>
> On 17/2/25 19:18, Chenyi Qiang wrote:
>> Introduce a new state_change() callback in MemoryAttributeManagerClass to
>> efficiently notify all registered RamDiscardListeners, including VFIO
>> listeners about the memory conversion events in
On Tue, 2025-02-18 at 08:35 +0100, Cédric Le Goater wrote:
> The SoC type name is stored under AspeedSoCClass which is
> redundant. Use object_get_typename() instead where needed.
>
> Signed-off-by: Cédric Le Goater
Reviewed-by: Andrew Jeffery
On Wed, Feb 19, 2025 at 4:24 AM Markus Armbruster wrote:
> Peter Xu writes:
>
> > On Tue, Feb 18, 2025 at 10:39:55AM +0800, yong.hu...@smartx.com wrote:
> >> From: Hyman Huang
> >>
> >> When the developer is examining the time distribution of
> >> the migration, it is useful to record the migra
On 2/18/2025 5:19 PM, Alexey Kardashevskiy wrote:
>
>
[..]
>> diff --git a/include/system/memory-attribute-manager.h b/include/
>> system/memory-attribute-manager.h
>> new file mode 100644
>> index 00..72adc0028e
>> --- /dev/null
>> +++ b/include/system/memory-attribute-manager.h
>>
On Tue, Feb 18, 2025 at 10:03 PM Philippe Mathieu-Daudé
wrote:
>
> Hi Konstantin,
>
> (Cc'ing more developers)
>
> On 18/2/25 14:27, Konstantin Shkolnyy wrote:
> > On 2/12/2025 14:01, Konstantin Shkolnyy wrote:
> >> On 2/12/2025 12:07, Philippe Mathieu-Daudé wrote:
> >>> On 12/2/25 18:24, Konstant
On 2/18/25 12:59, Stefan Weil wrote:
Am 18.02.25 um 17:22 schrieb Pierrick Bouvier:
On 2/17/25 20:11, Brian Cain wrote:
Is this toolchain available publicly or did you build it yourself? It
would be handy if there were a linux x86_64 hosted cross-toolchain that
can target Windows-aarch64. Or
On Mon, Feb 17, 2025 at 7:13 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This clarifies sections that are mistaken by the parser as "intro"
> > sections to be "details" sections instead.
> >
> > Signed-off-by: John Snow
>
> This is rather terse.
>
Mea culpa. I can write more at lengt
Hi guys! My name is Trace Oliver and I just downloaded qemu using the
64-bit Stefan Weil link on the qemu.org website but, when I try to do the
command "qemu-system-x86_64.exe -boot d -cdrom
.\ubuntu-24.04.1-desktop-amd64.iso -m 2048", qemu pops up but, it gives me
this error message "Guest has not
On Tue, Feb 18, 2025 at 06:03:48PM -0300, Fabiano Rosas wrote:
> Li Zhijian via writes:
>
> > This qtest requirs there is RXE link in the host.
> >
> > Here is an example to show how to add this RXE link:
> > $ ./new-rdma-link.sh
> > 192.168.22.93
> >
> > Signed-off-by: Li Zhijian
> > ---
> > Th
On Mon, Feb 17, 2025 at 5:51 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This clarifies sections that are mistaken by the parser as "intro"
> > sections to be "details" sections instead.
> >
> > Signed-off-by: John Snow
>
> Is this missing announce-self in net.json?
>
> diff --git a/q
On Wed, Feb 12, 2025 at 4:37 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This clarifies sections that are mistaken by the parser as "intro"
> > sections to be "details" sections instead.
>
> Impact on output? See notes inline.
>
It's very possible that there is none; in cases where t
On Tue, Feb 18, 2025 at 07:25:30PM +0100, Eric Auger wrote:
> With current reset scheme, DMA capable devices are reset after
> the vIOMMU which translate them. This holds for the different
> IOMMUs and various DMA capable devices such as virtio devices
> and VFIO ones. With virtio devices, spurious
On Mon, Feb 17, 2025 at 6:55 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This clarifies sections that are mistaken by the parser as "intro"
> > sections to be "details" sections instead.
> >
> > Signed-off-by: John Snow
> > ---
> > qapi/machine.json | 2 ++
> > qapi/migration.js
The problem is internal to t32_expandimm_imm, the imm intermediate
immediate value. This value is sourced from x, which always comes from
the return of a deposit32 call, which returns uint32_t already.
It's extracted via: int imm = extract32(x, 0, 8);, so the value will be
between 0-255
It is the
On Tue, Feb 18, 2025 at 04:36:31PM +, Daniel P. Berrangé wrote:
> Yes, or actually turn on the warning about unused params and mark
> the rest. It is initially noisey, but IME does end up flagging
> real problems periodically. Anyway, given we're inconsistent already
> there's no need to respin
On Tue, Feb 18, 2025 at 05:30:40PM -0300, Fabiano Rosas wrote:
> Li Zhijian via writes:
>
> > Address an error in RDMA-based migration by ensuring RDMA is prioritized
> > when saving pages in `ram_save_target_page()`.
> >
> > Previously, the RDMA protocol's page-saving step was placed after other
On Wed, Feb 12, 2025 at 4:06 AM Markus Armbruster wrote:
> John Snow writes:
>
> > This is being done primarily to ensure consistency between the source
> > documents and the final, rendered HTML output. Because
> > member/feature/returns sections will always appear in a visually grouped
> > ele
The documentation says the vector is at 0xff80, instead of the
previous value of 0xffc0. That value must have been a bug because
the standard vector values (20, 21, 23, 25, 30) were all
past the end of the array.
Signed-off-by: Keith Packard
---
target/rx/helper.c | 2 +-
1 file changed,
The existing loader supports raw binary blobs with the entry point
defined as the start of the blob. Add support for loading ELF files by
first checking if the provided filename has a valid ELF header,
falling back to the existing loader code when that fails.
Signed-off-by: Keith Packard
---
hw/
With feedback from Peter Maydell and Richard Henderson, I've updated
this series to address two concerns:
1. The hardware model is now responsible for guiding the CPU reset
process.
2. Loading the reset vector from memory is now delayed until cpu_reset
is finished to ensure memory_dispa
Functions which modify virtual machine state (such as virtual
registers stored in memory) must not be marked TCG_CALL_NO_WG as that
tells the optimizer that virtual registers values already loaded in
machine registers are still valid, hence discards any changes which
these helpers may have made. Th
This ensure that the CPU gets reset every time QEMU resets. Use either
the kernel entry point or the reset vector if no kernel was loaded.
Signed-off-by: Keith Packard
---
hw/rx/rx-gdbsim.c | 36 +++-
target/rx/cpu.c | 9 ++---
target/rx/cpu.h | 3 +++
3
Li Zhijian via writes:
> This qtest requirs there is RXE link in the host.
>
> Here is an example to show how to add this RXE link:
> $ ./new-rdma-link.sh
> 192.168.22.93
>
> Signed-off-by: Li Zhijian
> ---
> The RDMA migration was broken again...due to lack of sufficient test/qtest.
>
> It's ur
Am 18.02.25 um 17:22 schrieb Pierrick Bouvier:
On 2/17/25 20:11, Brian Cain wrote:
Is this toolchain available publicly or did you build it yourself? It
would be handy if there were a linux x86_64 hosted cross-toolchain that
can target Windows-aarch64. Or linux aarch64 hosted would be pretty
g
On Tue, Feb 11, 2025 at 10:00 AM Markus Armbruster
wrote:
> John Snow writes:
>
> > This patch begins distinguishing "Plain" sections as being either
> > "Intro" or "Details" sections for the purpose of knowing when and where
> > to inline those sections.
> >
> > Signed-off-by: John Snow
>
> [.
Li Zhijian via writes:
> Address an error in RDMA-based migration by ensuring RDMA is prioritized
> when saving pages in `ram_save_target_page()`.
>
> Previously, the RDMA protocol's page-saving step was placed after other
> protocols due to a refactoring in commit bc38dc2f5f3. This led to migrat
> > By delaying the load of the reset vector to the reset_exit phase,
> > you can always load from rom.
> I'm not sure how -- the ROM image is discarded when it gets loaded into
> read-only memory. If loaded to read-write memory, I bet it would
> stay around.
Ah, but by delaying until after cpu_
Peter Xu writes:
> On Tue, Feb 18, 2025 at 10:39:55AM +0800, yong.hu...@smartx.com wrote:
>> From: Hyman Huang
>>
>> When the developer is examining the time distribution of
>> the migration, it is useful to record the migration throttle
>> timestamp. Consequently, include the migration throttl
> So I'm OK with this patch doing this the way it does,
> except that I have one question: what's that
> process_queued_cpu_work() call doing? We don't need
> that on the Arm equivalent...
Yup, I needed that because I was running this bit at cpu_reset_hold
time, not waiting until after cpu reset
From: Richard Henderson
Date: Sat, 15 Feb 2025 10:24:05 -0800
> By delaying the load of the reset vector to the reset_exit phase,
> you can always load from rom.
I'm not sure how -- the ROM image is discarded when it gets loaded into
read-only memory. If loaded to read-write memory, I bet it wou
From: Peter Maydell
Date: Mon, 17 Feb 2025 09:53:58 +
> Reset of devices not plugged into buses (of which CPUs
> are the most common kind) is a mess. But having them
> call qemu_register_reset() themselves in their own
> realize method isn't the usual workaround. Instead we
> get the board co
"The text handler you add looks just like the existing latex handler. Does
LaTeX output lack "little headings", too?"
Yes, almost certainly. Can you let me know which output formats we actually
"care about"? I'll have to test them all. In the meantime, I upgraded my
patch so that the text translat
On 2/17/25 3:24 PM, dan tan wrote:
Stefan,
I have yet found a ppc64le Linux distro that has SPI enabled in the
kernel. Attempts to build my own was not successful either. I am trying
to get the LTC (Linux Technology Center) involved. They have more
expertise in building the ppc64le kernel.
On Tue, 18 Feb 2025, Andrew Cooper wrote:
> On 18/02/2025 11:20 am, Philippe Mathieu-Daudé wrote:
> > Hi,
> >
> > Adding Xen community.
> >
> > On 8/2/25 21:57, Richard Henderson wrote:
> >> Require a 64-bit host binary to spawn a 64-bit guest.
> >>
> >> Reviewed-by: Thomas Huth
> >> Reviewed-by:
On Tue, Feb 18, 2025 at 11:02:40AM -0800, Matthew R. Ochs wrote:
> +static void virt_get_highmem_mmio_size(Object *obj, Visitor *v, const char
> *name,
> + void *opaque, Error **errp)
Just some coding style nit:
static void virt_get_highmem_mmio_size(Object *obj, Visitor
On Fri, 24 Jan 2025 08:20:01 -0500, Xiaoyao Li wrote:
> diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c
> index 4ff94860815d..bd212abab865 100644
> --- a/target/i386/kvm/tdx.c
> +++ b/target/i386/kvm/tdx.c
> @@ -10,17 +10,122 @@
> */
>
> #include "qemu/osdep.h"
> +#include "qemu/err
The MMIO region size required to support virtualized environments with
large PCI BAR regions can exceed the hardcoded limit configured in QEMU.
For example, a VM with multiple NVIDIA Grace-Hopper GPUs passed through
requires more MMIO memory than the amount provided by VIRT_HIGH_PCIE_MMIO
(currentl
On Mon, Feb 17, 2025, Naveen N Rao wrote:
> On Thu, Feb 13, 2025 at 04:55:13PM -0800, Sean Christopherson wrote:
> > On Thu, Feb 13, 2025, Kim Phillips wrote:
> > > On 2/11/25 3:46 PM, Sean Christopherson wrote:
> > > > On Mon, Feb 10, 2025, Tom Lendacky wrote:
> > > > > On 2/7/25 17:34, Kim Philli
This adds a barebones module for a block driver interface. Because there
is no native QAPI support for Rust yet, opening images takes a few
unsafe functions to call into C visitor functions. This should be
cleaned up later.
Signed-off-by: Kevin Wolf
---
rust/block/src/driver.rs | 195 +++
Currently the iommu may be reset before the devices
it protects. For example this happens with virtio-scsi-pci.
when system_reset is issued from qmp monitor: spurious
"virtio: zero sized buffers are not allowed" warnings can
be observed. This happens because outstanding DMA requests
are still happe
To ease the debug of reset sequence, let's add a trace point
in vfio_reset_handler()
Signed-off-by: Eric Auger
Reviewed-by: Cédric Le Goater
Acked-by: Michael S. Tsirkin
Reviewed-by: Zhenzhong Duan
---
hw/vfio/common.c | 1 +
hw/vfio/trace-events | 1 +
2 files changed, 2 insertions(+)
d
Currently the IOMMU may be reset before the devices
it protects. For example this happens with virtio devices
but also with VFIO devices. In this latter case this
produces spurious translation faults on host.
Let's use 3-phase reset mechanism and reset the IOMMU on
exit phase after all DMA capable
To avoid any translation faults, the IOMMUs are expected to be
reset after the devices they protect. Document that we expect
DMA requests to be stopped during the 'enter' or 'hold' phase
while IOMMUs should be reset during the 'exit' phase.
Signed-off-by: Eric Auger
Reviewed-by: Zhenzhong Duan
-
With current reset scheme, DMA capable devices are reset after
the vIOMMU which translate them. This holds for the different
IOMMUs and various DMA capable devices such as virtio devices
and VFIO ones. With virtio devices, spurious traces can be
observed at qemu level such as "virtio: zero sized bu
Currently the iommu may be reset before the devices
it protects. For example this happens with virtio-net.
Let's use 3-phase reset mechanism and reset the IOMMU on
exit phase after all DMA capable devices have been
reset during the 'enter' or 'hold' phase.
Signed-off-by: Eric Auger
Acked-by: Mic
This adds a separate block driver for the bochs image format called
'bochs-rs' so that for the moment both the C implementation and the Rust
implementation can be present in the same build. The intention is to
remove the C implementation eventually and rename this one into 'bochs'.
This can only ha
This is the equivalent of bdrv_open_file_child() to be used in cases
where the caller is QAPI based and has a BlockdevRef rather than a
filename and an options QDict.
Signed-off-by: Kevin Wolf
---
include/block/block-global-state.h | 4
block.c| 31 +
This adds helper functions that allow running Rust futures to completion
using QEMU's event loops.
Signed-off-by: Kevin Wolf
---
include/qemu/coroutine-rust.h | 24 +++
rust/wrapper.h| 1 +
util/qemu-co-rust-async.c | 55 +
rust/qemu-api/meson
This adds a map() function to the BlockDriver trait and makes use of it
to implement reading from an image.
Signed-off-by: Kevin Wolf
---
rust/block/src/driver.rs | 95
1 file changed, 95 insertions(+)
diff --git a/rust/block/src/driver.rs b/rust/block/s
This adds format probing both to the BlockDriver trait and the bochs-rs
block driver. With this, bochs-rs achieves feature parity with its C
counterpart. Its probe function returns a higher priority so that it is
preferred when both drivers are available.
Signed-off-by: Kevin Wolf
---
rust/block
Signed-off-by: Kevin Wolf
---
MAINTAINERS| 1 +
rust/Cargo.lock| 8
rust/Cargo.toml| 1 +
rust/block/Cargo.toml | 16
rust/block/README.md | 3 +++
rust/block/meson.build | 20
rust/block/src/lib.rs | 1 +
rust/me
Signed-off-by: Kevin Wolf
---
rust/wrapper.h| 4
rust/qemu-api/src/zeroable.rs | 5 +++--
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/rust/wrapper.h b/rust/wrapper.h
index f203fd13ac..303d7bba7f 100644
--- a/rust/wrapper.h
+++ b/rust/wrapper.h
@@ -54,3 +54,
This series adds minimal bindings for writing block drivers in Rust and
converts the bochs block driver as an example. Some parts (such as the
open functions) are still essentially C written in Rust syntax, while
other parts already try to provide somewhat idiomatic abstractions.
The main purpose
Types that implement IoBuffer can be used with safe I/O functions.
Signed-off-by: Kevin Wolf
---
rust/block/src/iobuffer.rs | 94 ++
rust/block/src/lib.rs | 2 +
2 files changed, 96 insertions(+)
create mode 100644 rust/block/src/iobuffer.rs
diff --git
Signed-off-by: Kevin Wolf
---
meson.build| 36
storage-daemon/meson.build | 2 +-
2 files changed, 33 insertions(+), 5 deletions(-)
diff --git a/meson.build b/meson.build
index 6ee1757828..a08d029032 100644
--- a/meson.build
+++ b/meson.build
The existing qemu_api library can't be linked into tools because it
contains a few bindings for things that only exist in the system
emulator.
This adds a new "system" feature to the qemu_api crate that enables the
system emulator parts in it, and build the crate twice: qemu_api_tools
is the core
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