On 25.03.2025 18:41, Andrew Cooper wrote:
> Petr reports:
>
> (XEN) MMIO emulation failed (1): d12v1 64bit @ 0010:f8057ba7dfbf -> 45
> 0f 20 c2 ...
>
> during introspection.
>
> This is MOV %cr8, which is wired up for hvm_mov_{to,from}_cr(); the VMExit
> fastpaths, but not for the full em
On Wed, Mar 26, 2025 at 12:14:09PM +0100, Roger Pau Monné wrote:
> Sorry, not on KVM, I've tested on Xen and native. It also seems to be
> somewhat tied to the Kconfig, as I couldn't reproduce it with my
> Kconfig, maybe didn't have the required VirtIO options enabled.
Right.
> It's fixed by:
>
On 26.03.2025 08:20, Penny, Zheng wrote:
>> -Original Message-
>> From: Jan Beulich
>> Sent: Monday, March 24, 2025 11:01 PM
>>
>> On 06.03.2025 09:39, Penny Zheng wrote:
>>> --- a/docs/misc/xen-command-line.pandoc
>>> +++ b/docs/misc/xen-command-line.pandoc
>>> @@ -535,7 +535,8 @@ choice
On 26/03/2025 9:00 am, Jan Beulich wrote:
> On 25.03.2025 19:00, Andrew Cooper wrote:
>> I was mistaken about when ASM_CALL_CONSTRAINT is applicable. It is not
>> applicable for plain pushes/pops, so remove it from the flags logic.
>>
>> Clarify the description of ASM_CALL_CONSTRAINT to be explici
On Wed, Mar 26, 2025 at 10:45:18AM +0100, Jan Beulich wrote:
> On 26.03.2025 10:21, Roger Pau Monné wrote:
> > On Wed, Mar 26, 2025 at 09:45:09AM +0100, Jan Beulich wrote:
> >> What they contain we don't know, but we can't sensibly hide them. On my
> >> Skylake system OEM1 (with a description of "I
On 26.03.2025 11:14, Nicola Vetrini wrote:
> On 2025-03-26 10:54, Penny, Zheng wrote:
>>> -Original Message-
>>> From: Jan Beulich
>>> Sent: Monday, March 24, 2025 11:48 PM
>>>
>>> On 06.03.2025 09:39, Penny Zheng wrote:
This commit fixes core frequency calculation for AMD Family 1Ah
On 25.03.2025 18:04, Oleksii Kurochko wrote:
>
> On 3/25/25 5:46 PM, Jan Beulich wrote:
>> On 25.03.2025 17:35, Oleksii Kurochko wrote:
>>> On 3/7/25 1:12 PM, Andrew Cooper wrote:
On 07/03/2025 12:01 pm, Jan Beulich wrote:
> On 07.03.2025 12:50, Oleksii Kurochko wrote:
>> On 3/6/25 9:
On 26.03.2025 10:59, Orzel, Michal wrote:
> On 26/03/2025 10:54, Jan Beulich wrote:
>> On 26.03.2025 10:39, Orzel, Michal wrote:
>>> On 20/03/2025 08:32, Jan Beulich wrote:
On 19.03.2025 17:31, Oleksii Kurochko wrote:
> On 3/19/25 12:35 PM, Jan Beulich wrote:
>> On 18.03.2025 14:05, Ol
On 19.03.2025 00:36, dm...@proton.me wrote:
> Update the name to emphasize the physical console input switch to a
> new owner domain following the naming notation in the console driver.
>
> No functional change.
>
> Signed-off-by: Denis Mukhin
While I don't strictly mind the change, I'd like to
On 19.03.2025 00:36, dm...@proton.me wrote:
> Update the symbol name in preparation for the semantic change
> to the physical console input owner domain identifier.
As you say, no semantic change here just yet, but then ...
> --- a/xen/drivers/char/console.c
> +++ b/xen/drivers/char/console.c
> @
On 19.03.2025 00:36, dm...@proton.me wrote:
> --- a/xen/arch/arm/domain_build.c
> +++ b/xen/arch/arm/domain_build.c
> @@ -2367,8 +2367,15 @@ void __init create_dom0(void)
> .grant_opts = XEN_DOMCTL_GRANT_version(opt_gnttab_max_version),
> };
> unsigned int flags = CDF_privileged;
On 19.03.2025 00:36, dm...@proton.me wrote:
> Rename max_init_domid to domid_top to align with its usage in the code
> (Arm), where it represents the upper boundary of the non-system domain
> ID range.
I think I said before that I don't share this view of yours. The variable
is quite appropriately
[Public]
Hi,
> -Original Message-
> From: Jan Beulich
> Sent: Thursday, March 20, 2025 4:47 PM
> To: Penny, Zheng
> Cc: Huang, Ray ; Andrew Cooper
> ; Anthony PERARD ;
> Orzel, Michal ; Julien Grall ; Roger Pau
> Monné ; Stefano Stabellini ;
> Daniel
> P. Smith ; Alejandro Vallejo
> ;
The CR8_LEGACY feature was introduced in the K8 Revision F. It doesn't exist
in prior revisions of the K8.
Furthermore, from APM Vol2 3.1.5 CR8 (Task Priority Register, TPR):
The AMD64 architecture introduces a new control register, CR8, defined as
the task priority register (TPR).
Give CR8
On Wed Mar 26, 2025 at 1:59 PM GMT, Marek Marczykowski-Górecki wrote:
> On Tue, Mar 25, 2025 at 05:41:10PM +, Alejandro Vallejo wrote:
> > The way this undocumented feature works is via qemu-trad (who nobody
> > uses anymore), by intercepting 3 magic PIOs. 0x88 is one of them, and
> > it's prob
On 26/03/2025 12:41, Andrew Cooper wrote:
>
>
> On 26/03/2025 11:39 am, Jan Beulich wrote:
>> copy_to_guest() returns the number of bytes not copied; that's not what
>> the function should return to its caller though. Convert to returning
>> -EFAULT instead.
>>
>> Fixes: 86039f2e8c20 ("xen/arm
On 26/03/2025 4:04 pm, Juergen Gross wrote:
> Remove the qemu-traditional support. This includes the Mini-OS
> based ioemu-stubdom.
>
> I _think_ rombios support could be removed, too, but this can be
> done in a second step.
XenServer is still using RomBIOS, because qemu-trad and qemu-xen were
no
With the drop of qemu-traditional "make stubdom" no longer requires
"make tools" to have finished.
It is enough to add "install-tools-public-headers" as a prereq of
"install-stubdom".
Signed-off-by: Juergen Gross
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/M
On 26.03.2025 16:25, Andrew Cooper wrote:
> The CR8_LEGACY feature was introduced in the K8 Revision F. It doesn't exist
> in prior revisions of the K8.
>
> Furthermore, from APM Vol2 3.1.5 CR8 (Task Priority Register, TPR):
>
> The AMD64 architecture introduces a new control register, CR8, de
For being able to store the Xenstore state in preparation of a live
update operation, 9pfront is needing support for fstat and lseek.
Changes in V2:
- addressed comment for patch 1
Juergen Gross (2):
9pfs: add fstat file operation hook
9pfs: add lseek file operation hook
9pfront.c | 30
On 26.03.25 15:05, Andrew Cooper wrote:
On 25/03/2025 5:41 pm, Alejandro Vallejo wrote:
The way this undocumented feature works is via qemu-trad (who nobody
uses anymore), by intercepting 3 magic PIOs. 0x88 is one of them, and
it's probed by hvmloader as a means of detecting support for this (so
We should avoid changing files from the source tree if we don't intend
to commit the result.
We don't really need to check if $EXTRA_FIXED_RANDCONFIG is empty so
add it to the temporary file in all cases.
Signed-off-by: Anthony PERARD
---
automation/scripts/build | 10 +-
1 file changed
On Tue, Mar 25, 2025 at 12:26:09PM +0100, Jan Beulich wrote:
> On 06.03.2025 09:39, Penny Zheng wrote:
> > Make `xenpm get-cpureq-para/set-cpufreq-para` available in CPPC mode.
> > --- a/tools/libs/ctrl/xc_pm.c
> > +++ b/tools/libs/ctrl/xc_pm.c
> > @@ -214,13 +214,12 @@ int xc_get_cpufreq_para(xc_i
The switch() statement is over bits 24:25 (unshifted) of the guest provided
value. This makes case 0x3: dead, and not an implementation of the 4th
possible state.
A guest which writes (3<<24)|(ff<<16) to this register will skip the early
exit, then enter bitmap_for_each() with targets not bound b
On 26/03/2025 4:04 pm, Juergen Gross wrote:
> diff --git a/docs/misc/xenstore-paths.pandoc b/docs/misc/xenstore-paths.pandoc
> index a604f6b1c6..583e977b65 100644
> --- a/docs/misc/xenstore-paths.pandoc
> +++ b/docs/misc/xenstore-paths.pandoc
> @@ -634,7 +634,7 @@ Path in xenstore to the backend, n
On 26.03.25 17:21, Andrew Cooper wrote:
On 26/03/2025 4:04 pm, Juergen Gross wrote:
diff --git a/docs/misc/xenstore-paths.pandoc b/docs/misc/xenstore-paths.pandoc
index a604f6b1c6..583e977b65 100644
--- a/docs/misc/xenstore-paths.pandoc
+++ b/docs/misc/xenstore-paths.pandoc
@@ -634,7 +634,7 @@ P
On 25.03.2025 18:37, Oleksii Kurochko wrote:
> Currently, only the device tree method is available to locate and perform
> pre-initialization steps for the interrupt controller (at the moment, only
> one interrupt controller is going to be supported). When `acpi_disabled`
> is true, the system will
BITS_PER_* values can be defined in a common way using compiler-provided macros.
Thus, these definitions are moved to xen/config.h to reduce duplication across
architectures.
Additionally, *_BYTEORDER macros are removed, as BITS_PER_* values now come
directly from the compiler environment.
The ar
On 26.03.2025 10:39, Orzel, Michal wrote:
>
>
> On 20/03/2025 08:32, Jan Beulich wrote:
>>
>>
>> On 19.03.2025 17:31, Oleksii Kurochko wrote:
>>>
>>> On 3/19/25 12:35 PM, Jan Beulich wrote:
On 18.03.2025 14:05, Oleksii Kurochko wrote:
> On 3/17/25 9:07 PM, Luca Fancellu wrote:
>> Fro
On 25.03.2025 19:00, Andrew Cooper wrote:
> I was mistaken about when ASM_CALL_CONSTRAINT is applicable. It is not
> applicable for plain pushes/pops, so remove it from the flags logic.
>
> Clarify the description of ASM_CALL_CONSTRAINT to be explicit about unwinding
> using framepointers.
>
> F
[Public]
Hi,
> -Original Message-
> From: Jan Beulich
> Sent: Monday, March 24, 2025 11:01 PM
> To: Penny, Zheng
> Cc: Huang, Ray ; Andrew Cooper
> ; Anthony PERARD ;
> Orzel, Michal ; Julien Grall ; Roger Pau
> Monné ; Stefano Stabellini ;
> xen-
> de...@lists.xenproject.org
> Subject
On 26.03.2025 09:35, Penny, Zheng wrote:
>> -Original Message-
>> From: Jan Beulich
>> Sent: Monday, March 24, 2025 11:26 PM
>>
>> On 06.03.2025 09:39, Penny Zheng wrote:
>>> @@ -514,5 +515,14 @@ acpi_cpufreq_driver = {
>>>
>>> int __init acpi_cpufreq_register(void) {
>>> -return cpu
+ Linus so that he can whack it before it spreads any further.
On Wed, Feb 19, 2025 at 10:20:57AM +0100, Roger Pau Monne wrote:
> Setting pci_msi_ignore_mask inhibits the toggling of the mask bit for both
> MSI and MSI-X entries globally, regardless of the IRQ chip they are using.
> Only Xen sets
On Wed, Mar 26, 2025 at 03:44:05PM +, Alejandro Vallejo wrote:
> On Wed Mar 26, 2025 at 1:59 PM GMT, Marek Marczykowski-Górecki wrote:
> > On Tue, Mar 25, 2025 at 05:41:10PM +, Alejandro Vallejo wrote:
> > > The way this undocumented feature works is via qemu-trad (who nobody
> > > uses any
On 3/26/25 01:50, Penny Zheng wrote:
> Function sched_adjust_global is designed for XEN_SYSCTL_scheduler_op, so
> itself and its calling flow, like .adjust_global, shall all be wrapped.
>
> Signed-off-by: Penny Zheng
> Reviewed-by: Stefano Stabellini
For arinc653 only:
Acked-by: Stewart Hildebr
Remove the code in tools for running a guest with qemu-traditional.
This covers xl, libxl, libacpi, hvmloader and the related python and
go bindings.
Signed-off-by: Juergen Gross
---
tools/firmware/hvmloader/pci.c| 19 +-
tools/firmware/hvmloader/util.c | 9 +-
tools/golang/xenl
On Tue, Mar 25, 2025 at 12:00:29PM +0100, Michal Orzel wrote:
> diff --git a/tools/libs/light/libxl_arm.c b/tools/libs/light/libxl_arm.c
> index 2d895408cac3..0adcaa373b54 100644
> --- a/tools/libs/light/libxl_arm.c
> +++ b/tools/libs/light/libxl_arm.c
> @@ -181,13 +181,18 @@ int libxl__arch_domain
In preparation to no longer support qemu-traditional (including
qemu-stubdom), remove it from documentation.
Signed-off-by: Juergen Gross
---
docs/man/xl-pci-configuration.5.pod | 4 +-
docs/man/xl.cfg.5.pod.in | 46 +++-
docs/misc/stubdom.txt
Remove qemu traditional from the tree.
Signed-off-by: Juergen Gross
---
.gitignore | 3 --
CHANGELOG.md | 1 +
Config.mk| 24 ---
INSTALL | 12 --
MAINTAINERS | 4 --
README | 2 +-
SUPPORT.
All patches needed for running with a Linux stubdom device model are
in the tree and QubesOS is using and testing Linux stubdoms nowadays.
Switch support from "Tech Preview" to "Supported".
Signed-off-by: Juergen Gross
---
CHANGELOG.md | 1 +
SUPPORT.md | 2 +-
2 files changed, 2 insertions(+
Remove the qemu-traditional support. This includes the Mini-OS
based ioemu-stubdom.
I _think_ rombios support could be removed, too, but this can be
done in a second step.
After adding the series a run of autoconf should be done.
Juergen Gross (6):
SUPPORT.md: make Linux based stubdom fully su
The stubdom-dm script is still using "xm" instead of "xl", so it is
probably unused since more than 10 years now.
Signed-off-by: Juergen Gross
---
stubdom/stubdom-dm | 182 -
1 file changed, 182 deletions(-)
delete mode 100644 stubdom/stubdom-dm
diff
On 25.03.2025 18:36, Oleksii Kurochko wrote:
> Introduce preinitialization stuff for the RISC-V Advanced Platform-Level
> Interrupt Controller (APLIC) in Xen:
> - Implementing the APLIC pre-initialization function (`aplic_preinit()`),
>ensuring that only one APLIC instance is supported in S mo
On 25.03.2025 18:36, Oleksii Kurochko wrote:
> preinit_xen_time() does two things:
> 1. Parse timebase-frequency properpy of /cpus node to initialize
>cpu_khz variable.
> 2. Initialize xen_start_clock_cycles with the current time counter
>value.
>
> Signed-off-by: Oleksii Kurochko
> ---
>
On 3/26/25 4:19 PM, Jan Beulich wrote:
On 25.03.2025 18:36, Oleksii Kurochko wrote:
Introduce preinitialization stuff for the RISC-V Advanced Platform-Level
Interrupt Controller (APLIC) in Xen:
- Implementing the APLIC pre-initialization function (`aplic_preinit()`),
ensuring that only on
On 26/03/2025 15:47, Anthony PERARD wrote:
>
>
> On Tue, Mar 25, 2025 at 12:00:29PM +0100, Michal Orzel wrote:
>> diff --git a/tools/libs/light/libxl_arm.c b/tools/libs/light/libxl_arm.c
>> index 2d895408cac3..0adcaa373b54 100644
>> --- a/tools/libs/light/libxl_arm.c
>> +++ b/tools/libs/light/
Hi Oleksandr,
On 26/03/2025 11:45, Oleksandr Tyshchenko wrote:
Also it is not entirely clear what we should do with acpi_disabled=true
during declaration (what current patch does), even if we decided to go
with splitting should we retain that change?
It should not be necessary. But I will leav
Hi Bertrand,
On 24/03/2025 13:52, Bertrand Marquis wrote:
Add a new command line parameter "tee=" to be used to explicitly select
what tee mediator is to be used by Xen and fail if it does not exist
or the probe function for it failed.
Without specifying which tee is to be used, Xen will use th
Hi Bertrand,
I didn't dig in the spec and neither some of the callers. So I will
mainly focus on the implementation from Xen PoV.
On 24/03/2025 13:53, Bertrand Marquis wrote:
Create a CONFIG_FFA_VM_TO_VM parameter to activate FFA communication
between VMs.
When activated list VMs in the syste
While building xen with GCC 14.2.1 with "-fcondition-coverage" option,
the compiler produces a false positive warning:
arch/x86/irq.c: In function ‘create_irq’:
arch/x86/irq.c:281:11: error: ‘desc’ may be used uninitialized
[-Werror=maybe-uninitialized]
281 | ret = init_one_irq_desc(d
On 18.03.2025 16:30, Andrii Sultanov wrote:
> --- a/xen/drivers/passthrough/amd/iommu_acpi.c
> +++ b/xen/drivers/passthrough/amd/iommu_acpi.c
> @@ -707,8 +707,8 @@ static int __init cf_check parse_ivrs_ioapic(const char
> *str)
> }
> }
>
> -ioapic_sbdf[idx].bdf = PCI_BDF(bus, d
On 21.03.2025 00:05, dm...@proton.me wrote:
> Add new macro APIC_VECTOR_VALID() to validate the interrupt vector
> range as per [1]. This macro replaces hardcoded checks against the
> open-coded value 16 in LAPIC and virtual LAPIC code and simplifies
> the code a bit.
>
> [1] Intel SDM volume 3A
>
On Thu, 27 Mar 2025, Volodymyr Babchuk wrote:
> Hi Andrew,
>
> Andrew Cooper writes:
>
> > The switch() statement is over bits 24:25 (unshifted) of the guest provided
> > value. This makes case 0x3: dead, and not an implementation of the 4th
> > possible state.
> >
> > A guest which writes (3<<
Hi Andrew,
Andrew Cooper writes:
> The switch() statement is over bits 24:25 (unshifted) of the guest provided
> value. This makes case 0x3: dead, and not an implementation of the 4th
> possible state.
>
> A guest which writes (3<<24)|(ff<<16) to this register will skip the early
> exit, then
GCC 14.1 has 9 gcov counters and also can call new merge function
__gcov_merge_ior(), so we need a new stub for it.
Signed-off-by: Volodymyr Babchuk
---
xen/common/coverage/gcc_4_7.c | 4 +++-
xen/common/coverage/gcov_base.c | 5 +
2 files changed, 8 insertions(+), 1 deletion(-)
diff --gi
Condition coverage, also known as MC/DC (modified condition/decision
coverage) is a coverage metric that tracks separate outcomes in
boolean expressions.
This patch adds CONFIG_CONDITION_COVERAGE option to enable MC/DC for
GCC. Clang is not supported right now.
Signed-off-by: Volodymyr Babchuk
-
This series enables MC/DC for Xen when building with GCC.
Condition coverage, also known as MC/DC (modified condition/decision
coverage) is a coverage metric that tracks separate outcomes in
boolean expressions. This metric is used in critical software
components, so it natural to collect it for X
On 26/03/2025 5:47 pm, Oleksii Kurochko wrote:
> diff --git a/xen/include/xen/config.h b/xen/include/xen/config.h
> index d888b2314d..dbbf2fce62 100644
> --- a/xen/include/xen/config.h
> +++ b/xen/include/xen/config.h
> @@ -98,4 +98,13 @@
> #define ZERO_BLOCK_PTR ((void *)-1L)
> #endif
>
> +#de
Hi,
I've got a report[1] that 6.13.6 crashes as listed below. It worked fine in
6.12.11. We've tried few simple things to narrow the problem down, but
without much success.
This is running in Xen 4.17.5, PV dom0, which probably is relevant here.
This is running on AMD Ryzen 9 7950X3D, with ASRock
On 26/03/2025 23:41, Julien Grall wrote:
Hi Bertrand,
On 24/03/2025 13:53, Bertrand Marquis wrote:
When VM to VM support is activated and there is no suitable FF-A support
in the firmware, enable FF-A support for VMs to allow using it for VM to
VM communications.
tee/ and the callbacks ass
On 25/03/2025 5:41 pm, Alejandro Vallejo wrote:
> The way this undocumented feature works is via qemu-trad (who nobody
> uses anymore), by intercepting 3 magic PIOs. 0x88 is one of them, and
> it's probed by hvmloader as a means of detecting support for this (so,
> on qemu-upstream this check alway
On 3/26/25 4:13 PM, Jan Beulich wrote:
On 25.03.2025 18:36, Oleksii Kurochko wrote:
preinit_xen_time() does two things:
1. Parse timebase-frequency properpy of /cpus node to initialize
cpu_khz variable.
2. Initialize xen_start_clock_cycles with the current time counter
value.
Signed-of
On 25/03/2025 17:54, Oleksandr Tyshchenko wrote:
>
>
> On 25.03.25 18:09, Julien Grall wrote:
>
>
>> Hi Oleksandr,
>
> Hello Julien
>
>>
>> On 25/03/2025 16:05, Oleksandr Tyshchenko wrote:
>> Furthermore, what happen if we decide to use ACPI afterwards? Wouldn't
>> this mean that t
On 26/03/2025 9:20 am, Jan Beulich wrote:
> On 25.03.2025 19:52, Andrew Cooper wrote:
>> It turns out that LZCNT/TZCNT have the same input dependent bug, prior to
>> Skylake.
> These two do, but BSF/BSR don't? Pretty odd.
BSF/BSR have true input dependencies. They both have cases where the
destin
On 20/03/2025 08:32, Jan Beulich wrote:
>
>
> On 19.03.2025 17:31, Oleksii Kurochko wrote:
>>
>> On 3/19/25 12:35 PM, Jan Beulich wrote:
>>> On 18.03.2025 14:05, Oleksii Kurochko wrote:
On 3/17/25 9:07 PM, Luca Fancellu wrote:
> From: Penny Zheng
>
> ARM MPU system doesn't nee
On 26.03.2025 10:21, Roger Pau Monné wrote:
> On Wed, Mar 26, 2025 at 09:45:09AM +0100, Jan Beulich wrote:
>> What they contain we don't know, but we can't sensibly hide them. On my
>> Skylake system OEM1 (with a description of "INTEL CPU EIST") is what
>> contains all the _PCT, _PPC, and _PSS met
On 3/26/25 10:39 AM, Orzel, Michal wrote:
On 20/03/2025 08:32, Jan Beulich wrote:
On 19.03.2025 17:31, Oleksii Kurochko wrote:
On 3/19/25 12:35 PM, Jan Beulich wrote:
On 18.03.2025 14:05, Oleksii Kurochko wrote:
On 3/17/25 9:07 PM, Luca Fancellu wrote:
From: Penny Zheng
ARM MPU system do
On 26.03.2025 10:34, Andrew Cooper wrote:
> On 26/03/2025 9:20 am, Jan Beulich wrote:
>> On 25.03.2025 19:52, Andrew Cooper wrote:
>>> --- a/xen/arch/x86/include/asm/bitops.h
>>> +++ b/xen/arch/x86/include/asm/bitops.h
>>> @@ -488,10 +488,16 @@ static always_inline unsigned int
>>> arch_hweightl(u
[Public]
Hi,
> -Original Message-
> From: Jan Beulich
> Sent: Monday, March 24, 2025 11:48 PM
> To: Penny, Zheng
> Cc: Huang, Ray ; Andrew Cooper
> ; Roger Pau Monné ; xen-
> de...@lists.xenproject.org; Nicola Vetrini
> Subject: Re: [PATCH v3 07/15] xen/cpufreq: fix core frequency calc
Add a kexec_call() macro which will provide the capability to register
a function for being called when doing a kexec() call. The called
functions will be called with a boolean parameter "undo" indicating
whether a previous call needs to be undone due to a failure during
kexec().
The related loop
On Wed, Mar 26 2025 at 13:09, Jürgen Groß wrote:
> On 26.03.25 13:05, Thomas Gleixner wrote:
>> The conversion of the XEN specific global variable pci_msi_ignore_mask to a
>> MSI domain flag, missed the facts that:
>>
>> 1) Legacy architectures do not provide a interrupt domain
>> 2) Par
On 14/03/2025 22:21, Andrew Cooper wrote:
>
>
> The bitmap_for_each() expression only inspects the bottom 8 bits of targets.
> Change it's type to uint8_t and use for_each_set_bit() which is more efficient
> over scalars.
>
> GICD_SGI_TARGET_LIST_MASK is 2 bits wide. Two cases discard the pr
On 26.03.2025 13:42, Oleksii Kurochko wrote:
> H provides additional instructions and CSRs that control the new stage of
> address translation and support hosting a guest OS in virtual S-mode
> (VS-mode).
>
> According to the Unprivileged Architecture (version 20240411) specification:
> ```
> Tabl
On 25/03/25 19:41, Jann Horn wrote:
> On Tue, Mar 25, 2025 at 6:52 PM Valentin Schneider
> wrote:
>> On 20/02/25 09:38, Dave Hansen wrote:
>> > But, honestly, I'm still not sure this is worth all the trouble. If
>> > folks want to avoid IPIs for TLB flushes, there are hardware features
>> > that
On 25.03.2025 19:52, Andrew Cooper wrote:
> Manually break the false dependency for the benefit of cases such as
> bitmap_weight() which is a reasonable hotpath.
>
> Signed-off-by: Andrew Cooper
> ---
> CC: Jan Beulich
> CC: Roger Pau Monné
>
> Not sure if this warrants a fixes or not, but:
>
On Wed, Mar 26, 2025 at 09:45:09AM +0100, Jan Beulich wrote:
> What they contain we don't know, but we can't sensibly hide them. On my
> Skylake system OEM1 (with a description of "INTEL CPU EIST") is what
> contains all the _PCT, _PPC, and _PSS methods, i.e. about everything
> needed for cpufreq.
On 26.03.2025 10:17, Andrew Cooper wrote:
> On 26/03/2025 9:00 am, Jan Beulich wrote:
>> On 25.03.2025 19:00, Andrew Cooper wrote:
>>> I was mistaken about when ASM_CALL_CONSTRAINT is applicable. It is not
>>> applicable for plain pushes/pops, so remove it from the flags logic.
>>>
>>> Clarify the
On 26/03/2025 11:19 am, Jan Beulich wrote:
> On 25.03.2025 18:41, Andrew Cooper wrote:
>> Petr reports:
>>
>> (XEN) MMIO emulation failed (1): d12v1 64bit @ 0010:f8057ba7dfbf -> 45
>> 0f 20 c2 ...
>>
>> during introspection.
>>
>> This is MOV %cr8, which is wired up for hvm_mov_{to,from}_cr(
On Wed, Mar 26, 2025 at 12:04:55PM +0100, Borislav Petkov wrote:
> + Linus so that he can whack it before it spreads any further.
>
> On Wed, Feb 19, 2025 at 10:20:57AM +0100, Roger Pau Monne wrote:
> > Setting pci_msi_ignore_mask inhibits the toggling of the mask bit for both
> > MSI and MSI-X en
On 25.03.2025 10:20, Thomas Gleixner wrote:
> On Tue, Mar 25 2025 at 09:11, Thomas Gleixner wrote:
>> On Mon, Mar 24 2025 at 20:18, Roger Pau Monné wrote:
>>> On Mon, Mar 24, 2025 at 07:58:14PM +0100, Daniel Gomez wrote:
The issue is that info appears to be uninitialized. So, this worked for m
copy_to_guest() returns the number of bytes not copied; that's not what
the function should return to its caller though. Convert to returning
-EFAULT instead.
Fixes: 7542c4ff00f2 ("Add user PM control interface")
Reported-by: Andrew Cooper
Signed-off-by: Jan Beulich
--- a/xen/drivers/acpi/pmsta
copy_to_guest() returns the number of bytes not copied; that's not what
the function should return to its caller though. Convert to returning
-EFAULT instead.
Fixes: 86039f2e8c20 ("xen/arm: vpl011: Add a new domctl API to initialize
vpl011")
Signed-off-by: Jan Beulich
--- a/xen/arch/arm/domctl.
On 25.03.2025 18:41, Andrew Cooper wrote:
> In hvmemul_read_cr(), make the TRACE()/X86EMUL_OKAY path common in preparation
> for adding a %cr8 case. Use a local 'val' variable instead of always
> operating on a deferenced pointer.
>
> In both, calculate curr once.
>
> No functional change.
>
>
On 26/03/2025 11:38 am, Jan Beulich wrote:
> copy_to_guest() returns the number of bytes not copied; that's not what
> the function should return to its caller though. Convert to returning
> -EFAULT instead.
>
> Fixes: 7542c4ff00f2 ("Add user PM control interface")
> Reported-by: Andrew Cooper
> S
On 26/03/2025 10:15 am, Jan Beulich wrote:
> On 25.03.2025 18:04, Oleksii Kurochko wrote:
>> On 3/25/25 5:46 PM, Jan Beulich wrote:
>>> On 25.03.2025 17:35, Oleksii Kurochko wrote:
On 3/7/25 1:12 PM, Andrew Cooper wrote:
> On 07/03/2025 12:01 pm, Jan Beulich wrote:
>> On 07.03.2025 12:
On 26.03.25 13:05, Thomas Gleixner wrote:
The conversion of the XEN specific global variable pci_msi_ignore_mask to a
MSI domain flag, missed the facts that:
1) Legacy architectures do not provide a interrupt domain
2) Parent MSI domains do not necessarily have a domain info attached
On 19.03.2025 00:36, dm...@proton.me wrote:
> @@ -564,10 +586,25 @@ static void __serial_rx(char c)
> /* Deliver input to the PV shim console. */
> rc = consoled_guest_tx(c);
>
> -if ( rc )
> +switch ( rc )
> +{
> +case 0:
> +break;
> +
> +case -EBUSY
On 2025-03-26 10:54, Penny, Zheng wrote:
[Public]
Hi,
-Original Message-
From: Jan Beulich
Sent: Monday, March 24, 2025 11:48 PM
To: Penny, Zheng
Cc: Huang, Ray ; Andrew Cooper
; Roger Pau Monné ;
xen-
de...@lists.xenproject.org; Nicola Vetrini
Subject: Re: [PATCH v3 07/15] xen/cp
On 26/03/2025 10:54, Jan Beulich wrote:
>
>
> On 26.03.2025 10:39, Orzel, Michal wrote:
>>
>>
>> On 20/03/2025 08:32, Jan Beulich wrote:
>>>
>>>
>>> On 19.03.2025 17:31, Oleksii Kurochko wrote:
On 3/19/25 12:35 PM, Jan Beulich wrote:
> On 18.03.2025 14:05, Oleksii Kurochko wrote:
On 26.03.2025 11:18, Roger Pau Monné wrote:
> On Wed, Mar 26, 2025 at 10:45:18AM +0100, Jan Beulich wrote:
>> On 26.03.2025 10:21, Roger Pau Monné wrote:
>>> On Wed, Mar 26, 2025 at 09:45:09AM +0100, Jan Beulich wrote:
Further tables on said system
which weren't blacklisted prior to that
On 26/03/2025 11:39 am, Jan Beulich wrote:
> copy_to_guest() returns the number of bytes not copied; that's not what
> the function should return to its caller though. Convert to returning
> -EFAULT instead.
>
> Fixes: 86039f2e8c20 ("xen/arm: vpl011: Add a new domctl API to initialize
> vpl011")
>
On 26.03.25 10:57, Orzel, Michal wrote:
Hello Michal, Julien
>
>
> On 25/03/2025 17:54, Oleksandr Tyshchenko wrote:
>>
>>
>> On 25.03.25 18:09, Julien Grall wrote:
>>
>>
>>> Hi Oleksandr,
>>
>> Hello Julien
>>
>>>
>>> On 25/03/2025 16:05, Oleksandr Tyshchenko wrote:
>>> Furthermore, what
On 26.03.25 13:05, Thomas Gleixner wrote:
The conversion of the XEN specific global variable pci_msi_ignore_mask to a
MSI domain flag, missed the facts that:
1) Legacy architectures do not provide a interrupt domain
2) Parent MSI domains do not necessarily have a domain info attached
H provides additional instructions and CSRs that control the new stage of
address translation and support hosting a guest OS in virtual S-mode
(VS-mode).
According to the Unprivileged Architecture (version 20240411) specification:
```
Table 74 summarizes the standardized extension names. The table
On Tue, Mar 25, 2025 at 05:41:10PM +, Alejandro Vallejo wrote:
> The way this undocumented feature works is via qemu-trad (who nobody
> uses anymore), by intercepting 3 magic PIOs. 0x88 is one of them, and
> it's probed by hvmloader as a means of detecting support for this (so,
> on qemu-upstre
CONFIG_GCOV_FORMAT_AUTODETECT has been removed in 767e6c5fd55b.
Fixes: 767e6c5fd55b ("kconfig/gcov: remove gcc version choice from kconfig")
Signed-off-by: Anthony PERARD
---
xen/tools/kconfig/allrandom.config | 1 -
1 file changed, 1 deletion(-)
diff --git a/xen/tools/kconfig/allrandom.config
On 19.03.2025 20:53, Denis Mukhin wrote:
> On Tuesday, March 18th, 2025 at 4:37 PM, dm...@proton.me
> wrote:
>> +/*
>> + * Switch console focus.
>> + * Rotates input focus among Xen, dom0 and boot-time created domUs while
>> + * skipping switching serial input to non existing domains.
>> + */
>>
On 26/03/2025 2:29 pm, Anthony PERARD wrote:
> CONFIG_GCOV_FORMAT_AUTODETECT has been removed in 767e6c5fd55b.
>
> Fixes: 767e6c5fd55b ("kconfig/gcov: remove gcc version choice from kconfig")
> Signed-off-by: Anthony PERARD
Reviewed-by: Andrew Cooper
On 19.03.2025 00:37, dm...@proton.me wrote:
> +/*
> + * Switch console focus.
> + * Rotates input focus among Xen, dom0 and boot-time created domUs while
> + * skipping switching serial input to non existing domains.
> + */
> +static void console_switch_focus(void)
> +{
> +const domid_t n = dom
On 19.03.25 14:37, Jan Beulich wrote:
Hello Jan, all.
On 19.03.2025 13:05, Mykyta Poturai wrote:
On 18.03.25 16:26, Jan Beulich wrote:
On 18.03.2025 14:31, Mykyta Poturai wrote:
On 18.03.25 12:11, Jan Beulich wrote:
On 18.03.2025 10:10, Mykyta Poturai wrote:
On 15.01.24 11:35, Jan Beul
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