* [PATCH for-4.7] xen/arm: warn the user that we cannout route SPIs to Dom0
@ 2016-06-01 10:19 Stefano Stabellini
2016-06-01 10:45 ` Julien Grall
0 siblings, 1 reply; 3+ messages in thread
From: Stefano Stabellini @ 2016-06-01 10:19 UTC (permalink / raw)
To: julien.grall; +Cc: sstabellini, wei.liu2, xen-devel
as a consequence of 9d77b3c01d1261ce17c10097a1b393f2893ca657 being
reverted.
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
index ee35683..babc822 100644
--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -25,6 +25,8 @@
#include <xen/irq.h>
#include <xen/sched.h>
#include <xen/perfc.h>
+#include <xen/iocap.h>
+#include <xen/acpi.h>
#include <asm/current.h>
@@ -342,9 +344,15 @@ void vgic_enable_irqs(struct vcpu *v, uint32_t r, int n)
unsigned long flags;
int i = 0;
struct vcpu *v_target;
+ struct domain *d = v->domain;
while ( (i = find_next_bit(&mask, 32, i)) < 32 ) {
irq = i + (32 * n);
+ /* Set the irq type and route it to guest only for SPI and Dom0 */
+ if( irq_access_permitted(d, irq) && is_hardware_domain(d) &&
+ ( irq >= 32 ) && ( !acpi_disabled ) )
+ gprintk(XENLOG_WARNING, "Routing SPIs to Dom0 on ACPI systems is unimplemented.\n");
+
v_target = __vgic_get_target_vcpu(v, irq);
p = irq_to_pending(v_target, irq);
set_bit(GIC_IRQ_GUEST_ENABLED, &p->status);
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^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH for-4.7] xen/arm: warn the user that we cannout route SPIs to Dom0
2016-06-01 10:19 [PATCH for-4.7] xen/arm: warn the user that we cannout route SPIs to Dom0 Stefano Stabellini
@ 2016-06-01 10:45 ` Julien Grall
2016-06-01 10:47 ` Wei Liu
0 siblings, 1 reply; 3+ messages in thread
From: Julien Grall @ 2016-06-01 10:45 UTC (permalink / raw)
To: Stefano Stabellini; +Cc: xen-devel, wei.liu2
Hi Stefano,
Title: s/cannout/cannot/
I would add ACPI in the title to avoid people been scared by "we cannot
route SPIs to DOM0" :).
On 01/06/16 11:19, Stefano Stabellini wrote:
> as a consequence of 9d77b3c01d1261ce17c10097a1b393f2893ca657 being
> reverted.
> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
>
> diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
> index ee35683..babc822 100644
> --- a/xen/arch/arm/vgic.c
> +++ b/xen/arch/arm/vgic.c
> @@ -25,6 +25,8 @@
> #include <xen/irq.h>
> #include <xen/sched.h>
> #include <xen/perfc.h>
> +#include <xen/iocap.h>
> +#include <xen/acpi.h>
>
> #include <asm/current.h>
>
> @@ -342,9 +344,15 @@ void vgic_enable_irqs(struct vcpu *v, uint32_t r, int n)
> unsigned long flags;
> int i = 0;
> struct vcpu *v_target;
> + struct domain *d = v->domain;
>
> while ( (i = find_next_bit(&mask, 32, i)) < 32 ) {
> irq = i + (32 * n);
> + /* Set the irq type and route it to guest only for SPI and Dom0 */
> + if( irq_access_permitted(d, irq) && is_hardware_domain(d) &&
> + ( irq >= 32 ) && ( !acpi_disabled ) )
> + gprintk(XENLOG_WARNING, "Routing SPIs to Dom0 on ACPI systems is unimplemented.\n");
The log will likely be spammed with this message (i.e everytime an IRQ
is enabled). Should not we print this message only once?
Either way:
Acked-by: Julien Grall <julien.grall@arm.com>
Regards,
--
Julien Grall
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH for-4.7] xen/arm: warn the user that we cannout route SPIs to Dom0
2016-06-01 10:45 ` Julien Grall
@ 2016-06-01 10:47 ` Wei Liu
0 siblings, 0 replies; 3+ messages in thread
From: Wei Liu @ 2016-06-01 10:47 UTC (permalink / raw)
To: Julien Grall; +Cc: Stefano Stabellini, wei.liu2, xen-devel
On Wed, Jun 01, 2016 at 11:45:51AM +0100, Julien Grall wrote:
> Hi Stefano,
>
> Title: s/cannout/cannot/
>
> I would add ACPI in the title to avoid people been scared by "we cannot
> route SPIs to DOM0" :).
>
> On 01/06/16 11:19, Stefano Stabellini wrote:
> >as a consequence of 9d77b3c01d1261ce17c10097a1b393f2893ca657 being
> >reverted.
> >Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
> >
> >diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
> >index ee35683..babc822 100644
> >--- a/xen/arch/arm/vgic.c
> >+++ b/xen/arch/arm/vgic.c
> >@@ -25,6 +25,8 @@
> > #include <xen/irq.h>
> > #include <xen/sched.h>
> > #include <xen/perfc.h>
> >+#include <xen/iocap.h>
> >+#include <xen/acpi.h>
> >
> > #include <asm/current.h>
> >
> >@@ -342,9 +344,15 @@ void vgic_enable_irqs(struct vcpu *v, uint32_t r, int n)
> > unsigned long flags;
> > int i = 0;
> > struct vcpu *v_target;
> >+ struct domain *d = v->domain;
> >
> > while ( (i = find_next_bit(&mask, 32, i)) < 32 ) {
> > irq = i + (32 * n);
> >+ /* Set the irq type and route it to guest only for SPI and Dom0 */
> >+ if( irq_access_permitted(d, irq) && is_hardware_domain(d) &&
> >+ ( irq >= 32 ) && ( !acpi_disabled ) )
> >+ gprintk(XENLOG_WARNING, "Routing SPIs to Dom0 on ACPI systems is unimplemented.\n");
>
> The log will likely be spammed with this message (i.e everytime an IRQ is
> enabled). Should not we print this message only once?
>
> Either way:
>
> Acked-by: Julien Grall <julien.grall@arm.com>
>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
> Regards,
>
> --
> Julien Grall
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-06-01 10:19 [PATCH for-4.7] xen/arm: warn the user that we cannout route SPIs to Dom0 Stefano Stabellini
2016-06-01 10:45 ` Julien Grall
2016-06-01 10:47 ` Wei Liu
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