On Friday, December 13th, 2024 at 3:43 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:42:01PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Add initial in-hypervisor emulator for NS8250/NS16x50-compatible UARTs under
> > CONFIG_HAS_VUART_N
On Monday, December 16th, 2024 at 7:04 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:42, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Add initial in-hypervisor emulator for NS8250/NS16x50-compatible UARTs under
> > CONFIG_HAS_VUART_NS8250.
> >
> > In paral
On Friday, December 13th, 2024 at 12:45 PM, Stefano Stabellini
wrote:
>
>
> On Fri, 13 Dec 2024, Roger Pau Monné wrote:
>
> > On Thu, Dec 05, 2024 at 08:42:03PM -0800, Denis Mukhin via B4 Relay wrote:
> >
> > > From: Denis Mukhin dmuk...@ford.com
> > >
> > > Add new emulation flag for virtual UA
On Monday, December 16th, 2024 at 7:11 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:42, Denis Mukhin via B4 Relay wrote:
>
> > --- a/tools/libs/light/libxl_x86.c
> > +++ b/tools/libs/light/libxl_x86.c
> > @@ -8,7 +8,11 @@ int libxl__arch_domain_prepare_config(libxl__gc gc,
> > {
> > switch(d_co
On Friday, December 13th, 2024 at 4:23 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:42:03PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Add new emulation flag for virtual UART on x86 and plumb it through the
> > stack.
> >
> > This ch
On Thursday, December 12th, 2024 at 4:29 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:54PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > The new command line switch `hwdom_crashconsole=BOOL` allows to switch
> > serial
> > console in
On Wednesday, December 11th, 2024 at 8:50 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:40PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Move get_initial_domain_id() to a public API and enable for all
> > architectures.
> > That i
On Monday, December 16th, 2024 at 7:08 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:42, Denis Mukhin via B4 Relay wrote:
>
> > +static void ns8250_keyhandler_init(void)
> > +{
> > + register_keyhandler('1', ns8250_keyhandler_show,
> > + "dump virtual NS8250 state", 0);
> > + register_keyhandler
On Friday, December 13th, 2024 at 4:08 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:42:02PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Enable keyhandler mechanism for dumping state of emulated NS8250 on the
> > console.
> >
> > Signed
On Monday, December 16th, 2024 at 1:04 AM, Roger Pau Monné
wrote:
>
>
> On Sat, Dec 14, 2024 at 07:05:15PM +0100, Marek Marczykowski-Górecki wrote:
>
> > On Thu, Dec 05, 2024 at 08:41:30PM -0800, Denis Mukhin via B4 Relay wrote:
> >
> > > The patch series introduces initial in-hypervisor emulato
On Saturday, December 14th, 2024 at 10:05 AM, Marek Marczykowski-Górecki
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:30PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > The patch series introduces initial in-hypervisor emulator for
> > NS8250/NS16x50-compatible UARTs under CONFIG_HAS_VUART_NS8250.
On Thursday, December 12th, 2024 at 2:18 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:50PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_owner_domid() is introduced to obtain the "console owner" domain ID.
> >
> > The call i
On Tuesday, December 10th, 2024 at 11:33 PM, Jan Beulich
wrote:
>
>
> On 10.12.2024 23:11, Jason Andryuk wrote:
>
> > On 2024-12-05 23:41, Denis Mukhin via B4 Relay wrote:
> >
> > > From: Denis Mukhin dmuk...@ford.com
> > >
> > > console_owner_domid() is introduced to obtain the "console owner
On Tuesday, December 10th, 2024 at 11:28 PM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_owner_domid() is introduced to obtain the "console owner" domain ID.
> >
> > The call is used in NS8250 emulator
On Tuesday, December 10th, 2024 at 2:11 PM, Jason Andryuk
wrote:
>
>
> On 2024-12-05 23:41, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_owner_domid() is introduced to obtain the "console owner" domain ID.
> >
> > The call is used in NS8250 emulato
On Thursday, December 12th, 2024 at 5:03 PM, Stefano Stabellini
wrote:
>
>
> On Thu, 12 Dec 2024, Jan Beulich wrote:
>
> > On 12.12.2024 13:15, Roger Pau Monné wrote:
> >
> > > On Thu, Dec 12, 2024 at 12:57:25PM +0100, Jan Beulich wrote:
> > >
> > > > On 12.12.2024 10:14, Roger Pau Monné wrote
On Thursday, December 12th, 2024 at 8:18 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:42:00PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Added convenience wrappers for asserting/de-asserting interrupts in the
> > hardware emulation co
On Thursday, December 12th, 2024 at 6:29 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:58PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Added missing definitions needed for NS8250 UART emulator.
> >
> > Signed-off-by: Denis Mukhin dm
On Thursday, December 12th, 2024 at 7:07 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/include/xen/8250-uart.h
> > +++ b/xen/include/xen/8250-uart.h
> > @@ -32,16 +32,22 @@
> > #define UART_MCR 0x04 /* Modem control /
> > #define UART_LSR 0x05
On Thursday, December 12th, 2024 at 7:06 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:59PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Add separate menu for configuring HVM build-time settings.
> > That will help organizing HVM-spec
On Wednesday, December 11th, 2024 at 7:19 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:39PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Print d->arch.emulation_flags on the console for better traceability while
> > debugging in-hy
On Thursday, December 12th, 2024 at 6:21 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:57PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Messages printed before the serial and VGA consoles are initialized end up
> > in
> > the intern
On Tuesday, December 10th, 2024 at 5:30 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > Print d->arch.emulation_flags on the console for better traceability while
> > debugging in-hypervisor hardware emulators.
>
>
> Personally I disagree with such extr
On Thursday, December 12th, 2024 at 4:47 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:56PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Add new CONRING_LOG_SHIFT Kconfig parameter to specify the boot console
> > buffer
> > size as a
On Thursday, December 12th, 2024 at 4:04 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:53PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > PV Linux kernel uses HYPERVISOR_console_io hypercall for early console which
> > ends up being ha
On Thursday, December 12th, 2024 at 2:12 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:49PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_set_owner() is introduced for setting the new console owner.
> >
> > Switches console own
On Thursday, December 12th, 2024 at 3:59 AM, Jan Beulich
wrote:
>
>
> On 12.12.2024 11:12, Roger Pau Monné wrote:
>
> > On Thu, Dec 05, 2024 at 08:41:49PM -0800, Denis Mukhin via B4 Relay wrote:
> >
> > > +static struct domain *rcu_lock_domain_console_by_id(domid_t domid)
> > > +{
> > > + struct
On Thursday, December 12th, 2024 at 12:58 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:45PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Preparation for the follow on change to switch console_owner to
> > domid_t address space.
>
>
>
On Thursday, December 12th, 2024 at 2:51 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:52PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > With introduction of NS8250 emulator for x86, the logic of switching console
> > focus gets more
On Thursday, December 12th, 2024 at 2:23 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:51PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_init_owner() is introduced for selecting the boot-time console
> > owner.
> >
> > Signed
On Tuesday, December 10th, 2024 at 11:31 PM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/drivers/char/console.c
> > +++ b/xen/drivers/char/console.c
> > @@ -554,6 +554,22 @@ static void console_find_owner(void)
> > console_set_owner(DOMID_XEN)
On Thursday, December 12th, 2024 at 1:31 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:47PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > There are few places which check pv_shim console under CONFIG_PV_SHIM in xen
> > console driver.
On Wednesday, December 11th, 2024 at 9:22 AM, Roger Pau Monné
wrote:
>
>
> On Tue, Dec 10, 2024 at 03:13:20PM +0100, Jan Beulich wrote:
>
> > On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
> >
> > > From: Denis Mukhin dmuk...@ford.com
> > >
> > > Updated the name to highlight the logic of
On Wednesday, December 11th, 2024 at 9:17 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:43PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > console_input_domain() takes an RCU lock to protect domain structure.
> > That implies call to r
On Wednesday, December 11th, 2024 at 9:00 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:41PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Move max_init_domid to a public API and enable for all architectures.
> > That is pre-requisite
On Tuesday, December 10th, 2024 at 11:38 PM, Jan Beulich
wrote:
>
>
> On 10.12.2024 23:46, Jason Andryuk wrote:
>
> > On 2024-12-05 23:42, Denis Mukhin via B4 Relay wrote:
> >
> > > From: Denis Mukhin dmuk...@ford.com
> > >
> > > Enable console focus for domains w/ virtual NS8250.
> > >
> > >
On Wednesday, December 11th, 2024 at 7:13 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:38PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Introduce domain_has_vuart() for x86 port to be used in the console driver.
> >
> > Signed-off
On Wednesday, December 11th, 2024 at 3:01 AM, Roger Pau Monné
wrote:
>
>
> On Thu, Dec 05, 2024 at 08:41:31PM -0800, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Move resource definitions to a new architecture-agnostic shared header file.
> >
> > It will b
On Tuesday, December 10th, 2024 at 2:46 PM, Jason Andryuk
wrote:
>
>
> On 2024-12-05 23:42, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Enable console focus for domains w/ virtual NS8250.
> >
> > Code change allows to capture the output from the guest OS
On Tuesday, December 10th, 2024 at 7:02 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/drivers/char/console.c
> > +++ b/xen/drivers/char/console.c
> > @@ -463,82 +463,100 @@ static void cf_check dump_console_ring_key(unsigned
> > char key)
> >
On Tuesday, December 10th, 2024 at 6:52 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > The code now inspects d->is_console flag to decide whether the console focus
> > should move to the domain w/ console aft
On Tuesday, December 10th, 2024 at 6:31 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/drivers/char/consoled.c
> > +++ b/xen/drivers/char/consoled.c
> > @@ -43,13 +43,13 @@ struct xencons_interface *consoled_get_ring_addr(void)
> > static char
On Tuesday, December 10th, 2024 at 5:50 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > Move get_initial_domain_id() to a public API and enable for all
> > architectures.
> > That is pre-requisite change for console focus switch logic cleanup.
>
>
> Yet
On Tuesday, December 10th, 2024 at 6:27 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > Introduce new printk() variant for convenient printouts which skip '(XEN)'
> > prefix on xen console. This is needed for the case when physical console is
> > owned by
On Tuesday, December 10th, 2024 at 6:13 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Updated the name to highlight the logic of selection the physical console
> > owner: existing code does not switch only ser
On Tuesday, December 10th, 2024 at 6:01 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > console_input_domain() takes an RCU lock to protect domain structure.
> > That implies call to rcu_unlock_domain() after use.
> >
> > Rename console_input_domain() to
On Tuesday, December 10th, 2024 at 5:57 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/common/domain.c
> > +++ b/xen/common/domain.c
> > @@ -65,6 +65,9 @@ DEFINE_RCU_READ_LOCK(domlist_read_lock);
> > static struct domain *domain_hash[DOMAIN_HAS
On Tuesday, December 10th, 2024 at 5:33 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/arch/arm/include/asm/vpl011.h
> > +++ b/xen/arch/arm/include/asm/vpl011.h
> > @@ -69,7 +69,7 @@ struct vpl011_init_info {
> > int domain_vpl011_init(struct d
ent vuart layer which can
> call into vpl011, duart or ns8250.
> This way, domain_has_vuart() will move there, along w/ APIs which
> hooked into Xen console driver (e.g. ns8250's vuart_putchar()) will be
> all there as well.
> I kept this stub as is for now (in the follow on v2).
I ended up w/ domain_has_vuart() defined in xen/domain.h in v3:
https://lore.kernel.org/xen-devel/20250103-vuart-ns8250-v3-v1-6-c5d36b31d...@ford.com/
>
> > Thanks.
> >
> > ~ Oleksii
On Tuesday, December 10th, 2024 at 5:26 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- a/xen/arch/x86/include/asm/domain.h
> > +++ b/xen/arch/x86/include/asm/domain.h
> > @@ -506,6 +506,9 @@ struct arch_domain
> > #define has_pirq(d) (!!((d)->arch.
On Tuesday, December 10th, 2024 at 5:22 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > There are several console drivers which have same checks w.r.t. printable
> > characters. The check is moved to new isconsole() macro and re-used in
> > the console dr
On Tuesday, December 10th, 2024 at 5:17 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > From: Denis Mukhin dmuk...@ford.com
> >
> > Introduce definition for IRQ resource checks.
>
>
> How does this fit ...
>
> > --- a/xen/include/xen/irq.h
> > +++ b/xen
On Tuesday, December 10th, 2024 at 5:13 AM, Jan Beulich
wrote:
>
>
> On 06.12.2024 05:41, Denis Mukhin via B4 Relay wrote:
>
> > --- /dev/null
> > +++ b/xen/include/xen/resource.h
> > @@ -0,0 +1,40 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
>
>
> GPL-2.0-only
Fixed.
>
> > +/*
> > + * Syste
From: Denis Mukhin
Minor update related to virtual UART support.
Also:
s/pv/PV/g
s/hvm/HVM/g
Signed-off-by: Denis Mukhin
---
docs/misc/console.txt | 50 ++
1 file changed, 26 insertions(+), 24 deletions(-)
diff --git a/docs/misc/console.txt b
From: Denis Mukhin
Move common resource definitions to a new architecture-agnostic shared header
file.
Signed-off-by: Denis Mukhin
---
It will be used in follow on NS8250 emulator code to describe legacy
PC COM resources.
---
---
xen/common/device-tree/device-tree.c | 21 +
From: Denis Mukhin
Add new CONRING_SIZE Kconfig parameter to specify the boot console buffer size
in bytes. The value is rounded to the nearest power of 2 to match existing
conring_size= behavior.
The supported range is [16KiB..128MiB].
Bump default size to 32 KiB.
Link: https://gitlab.com/xen
From: Denis Mukhin
Internal console ring is used to hold Xen messages before external consoles
(serial, VGA) consoles are fully initialized.
Ensure all messages are sent to all external consoles after their
initialization is completed.
Link: https://gitlab.com/xen-project/xen/-/issues/184
Signe
From: Denis Mukhin
Honor 'hardware_domid=' parameter across all architectures and update
max_init_domid correctly so that toolstack and, subsequently, console driver
could iterate across known domains more efficiently.
Also, move max_init_domid to arch-independent location.
Signed-off-by: Denis
From: Denis Mukhin
Introduce new emulation flag for virtual UART on x86 and plumb it through
domain creation code so NS16550 emulator is enabled properly.
Virtual UART facility is enabled for HVM domains only. Enabling it for PVH
domains requires some work, as vPIC is not enabled in PVH.
Also,
From: Denis Mukhin
Added missing definitions needed for NS8250 UART emulator.
Re-used newly introduced MSR definitions in the existing ns16550 driver.
Also, fixed indentation in a comment for FCR register.
Signed-off-by: Denis Mukhin
---
xen/drivers/char/ns16550.c | 6 ++--
xen/include/xen
From: Denis Mukhin
If virtual UART prints on the physical console, the behavior is updated to:
- no prefix for Dom0 output;
- DOM$NUM for DomUs when not in focus, otherwise no prefix.
Introduce printk_noprefix() for convenient printouts which skip '(XEN)'
prefix on the physical console. This is
From: Denis Mukhin
Add initial in-hypervisor emulator for NS8250/NS16x50-compatible UARTs under
CONFIG_VUART_NS16550.
x86 port of Xen lacks vUART facility similar to Arm's vpl011 to support x86
guest OS bring up in the embedded setups.
In parallel domain creation scenario (hyperlaunch), NS16550
From: Denis Mukhin
console_input_domain() takes an RCU lock to protect domain structure.
That implies call to rcu_unlock_domain() after use.
Introduce a pair of console_get_domain() / console_put_domain() to highlight
the correct use of the call within the code interacting with Xen console
drive
From: Denis Mukhin
Add separate menu for configuring HVM build-time settings to help organizing
HVM-specific options.
Signed-off-by: Denis Mukhin
---
xen/arch/x86/Kconfig | 76 +---
xen/arch/x86/hvm/Kconfig | 74 ++
From: Denis Mukhin
The code inspects d->is_console flag to decide whether the console focus
should move to the domain with console after administrator uses
key combination to switch the console focus.
Console owner switch logic updated accordingly.
Signed-off-by: Denis Mukhin
---
xen/arch/ar
From: Denis Mukhin
Introduce a driver framework to abstract UART emulators in the hypervisor.
That allows for architecture-independent handling of virtual UARTs from Xen
console driver and simplifies enabling new architecture-dependent UART
emulators.
The framework is built under CONFIG_HAS_VUA
From: Denis Mukhin
There are few places which check pv_shim console under CONFIG_PV_SHIM in xen
console driver. Instead of #ifdef-ing, use new consoled_is_enabled() to
customize the logic.
Header file now can be included w/o CONFIG_X86.
Signature of consoled_guest_{rx,tx} has changed so the err
From: Denis Mukhin
Update the symbol name to prepare for the follow on semantic change of console
owner identifier.
Signed-off-by: Denis Mukhin
---
xen/drivers/char/console.c | 22 +++---
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/xen/drivers/char/console.c
From: Denis Mukhin
Updated the name to highlight the physical console input selection logic:
existing code does not switch only serial console, it also switches debugging
console (debug I/O port and console hypercall).
Signed-off-by: Denis Mukhin
---
xen/drivers/char/console.c | 6 +++---
1 fi
From: Denis Mukhin
Using "vuart" in UART emulator designed for hardware domain debugging
is confusing in generic Arm code (e.g. vpl011 is also "vuart").
Fix that by adding hwdom prefix to all symbols in arm/vuart.c.
Also, remove domain_has_vuart() from arm/vuart.c since it is not needed.
Signed
From: Denis Mukhin
The new command line switch `hwdom_crashconsole=BOOL` allows to switch serial
console input focus to xen for machine state inspection using keyhandler
mechanism after the hardware domain crashes.
The new command line switch is aliased via `dom0=...,crashconsole` knob.
Such fu
/virtdev-uart.h | 72 ++
xen/include/xen/xen.lds.h| 10 +
69 files changed, 1913 insertions(+), 479 deletions(-)
---
base-commit: 7e6edeaee38c66266a941bfa66d17b492fbe
change-id: 20250103-vuart-ns8250-v3-f8e1110777fe
Best regards,
--
Denis Mukhin
From: Denis Mukhin
There are several console drivers which have same checks w.r.t. printable
characters. The check is moved to new is_console_printable() function and
re-used in the UART emulation / guest logging code.
Also, MISRA rule 21.13 for ctype.h has been exploited while working on
the co
From: Denis Mukhin
Switch console_owner address spaces from integers mapped to domain IDs to
straight domain IDs, which simplifies console focus handling code.
console_set_owner() is introduced for setting the new console owner. This is a
public API to Xen console driver (it will be used in the
From: Denis Mukhin
PV Linux kernel uses HYPERVISOR_console_io hypercall for early console which
ends up being handled by Xen's console driver's guest_console_write().
guest_console_write() duplicates the code from __putstr(), elimitate code
duplication.
Signed-off-by: Denis Mukhin
---
xen/dri
From: Denis Mukhin
Define an architecture-independent location for describing hardware emulation
flags for configuring in-hypervisor emulators.
Print d->arch.emulation_flags from 'q' keyhandler for better traceability while
debugging in-hypervisor hardware emulators.
Also, expanded the error me
From: Denis Mukhin
Update the hint with the combination of keys to press for the physical console
focus switch between the domains.
Signed-off-by: Denis Mukhin
---
xen/drivers/char/console.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/drivers/char/console.c b/xe
From: Denis Mukhin
Xen console driver has vpl011-related logic which shall belong vpl011 emulator
code (Arm port). Move vpl011-related code from arch-independent console driver
to Arm's vpl011.c.
Signed-off-by: Denis Mukhin
---
xen/arch/arm/include/asm/vpl011.h | 2 +-
xen/arch/arm/vpl011.c
Hi Nicola, one question below
On Wed, 27 Nov 2024, Nicola Vetrini wrote:
> > #define AMD_OSVW_ERRATUM(osvw_id, ...) osvw_id, __VA_ARGS__, 0
> >
> > where we're using the C99 form rather than the GNU extension, and where
> > hence __VA_ARGS__ would - by extrapolation of the Misra rule - need
> >
On Thu, 2 Jan 2025, Andrew Cooper wrote:
> * Strip trailing whitspace.
> * Remove PRIperfc. It has never been used and isn't useful.
>
> Signed-off-by: Andrew Cooper
Reviewed-by: Stefano Stabellini
> ---
> CC: Jan Beulich
> CC: Roger Pau Monné
> CC: Stefano Stabellini
> CC: Julien Grall
On Thu, 2 Jan 2025, Andrew Cooper wrote:
> This is mostly for the removal of xen/lib.h and xen/smp.h from perfc.h. All
> that is needed is xen/macros.h.
>
> Trim and sort the includes for perfc.c too. There's no need for smp.h,
> keyhandler.h or mm.h, but cpumask.h is needed.
>
> Signed-off-by:
On Thu, 2 Jan 2025, Andrew Cooper wrote:
> ... and hook it up for RISC-V and PPC.
>
> On RISC-V at least, no combination of headers pulls in errno.h, so include it
> explicitly.
>
> Guard the hypercalls array declaration based on NR_hypercalls existing. This
> is sufficient to get PERF_COUNTERS
On Thu, 2 Jan 2025, Andrew Cooper wrote:
> These were only ever used by the IA64 port, which was droped in commit
> 570c311ca2c7 ("remove ia64").
>
> Remove them, and clean up the arm/x86 stub headers.
>
> Signed-off-by: Andrew Cooper
Reviewed-by: Stefano Stabellini
> ---
> CC: Jan Beulich
Signed-off-by: Stefano Stabellini
---
drivers/xen/pvcalls-front.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/xen/pvcalls-front.h b/drivers/xen/pvcalls-front.h
index f694ad77379f..881ef14660bc 100644
--- a/drivers/xen/pvcalls-front.h
+++ b/drivers/xen/pvcalls-front
On Sun, 22 Dec 2024, Nicola Vetrini wrote:
> Reformat the list of GNU extensions and non-standard tokens used by Xen
> in the ECLAIR configuration to make it easier to review any changes to it.
>
> The extension "ext_missing_varargs_arg", which captures the GNU extension that
> allows variadic fun
Signed-off-by: Andrew Cooper
---
CC: Jan Beulich
CC: Roger Pau Monné
An initial RFC discussion and plan. Open TODOs are at the end.
This can be viewed online at:
https://andrewcoop-xen.readthedocs.io/en/docs-devel/hypervisor-guide/x86/fred.html
I've got an 8-patch series doing the cpu_use
Hi Marek,
On Fri, Jan 3, 2025 at 7:10 PM Marek Marczykowski-Górecki
wrote:
> On Fri, Jan 03, 2025 at 02:00:28AM +, Andrew Cooper wrote:
> > On 03/01/2025 12:42 am, Marek Marczykowski-Górecki wrote:
> > > On Fri, Jan 03, 2025 at 01:18:31AM +0100, Marek Marczykowski-Górecki
> > > wrote:
> > >>
On Fri, Jan 03, 2025 at 02:00:28AM +, Andrew Cooper wrote:
> On 03/01/2025 12:42 am, Marek Marczykowski-Górecki wrote:
> > On Fri, Jan 03, 2025 at 01:18:31AM +0100, Marek Marczykowski-Górecki wrote:
> >> On Thu, Jan 02, 2025 at 08:39:16PM +0100, Marek Marczykowski-Górecki wrote:
> >>> On Thu, J
Thank you
Caleb
- Original Message -
> From: "Andrew Cooper"
> To: "Fonyuy-Asheri Caleb" , "xen-devel"
>
> Cc: "Jan Beulich"
> Sent: Friday, January 3, 2025 3:35:43 PM
> Subject: Re: Help With Identifying CPUID faulting logic in Xen code
> On 03/01/2025 2:25 pm, Fonyuy-Asheri Caleb w
On 03/01/2025 2:25 pm, Fonyuy-Asheri Caleb wrote:
> Hello,
>
> I am interested in finding understanding how xen handles CPUID
> faulting and
> VM exits in general. Please can someone indicate to me the concerned
> files?
>
> I want to know how xen detects the execution of the CPUID instruction an
Hello,
I am interested in finding understanding how xen handles CPUID faulting and
VM exits in general. Please can someone indicate to me the concerned files?
I want to know how xen detects the execution of the CPUID instruction and
ensures a guest only gets the features defined in cpuid-auto
On 02/01/2025 19:34, Stefano Stabellini wrote:
CAUTION: This message has originated from an External Source. Please use proper
judgment and caution when opening attachments, clicking links, or responding to
this email.
On Mon, 30 Dec 2024, Sergiy Kibrik wrote:
From: Stefano Stabellini
Ex
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