On 2015/9/23 9:55, chenfeng wrote:
> Hi all,
>
> In IOMMU architecture , how to make two different peripherals share the same
> page table ?
>
> In other words , is there a mechanism or structure to make two peripherals
> get completely different address.
>
> eg:
>
> peri-A、peri-B and peri-C
g multiple-MSI at hand. So may I remotely
access your system from Intel internal network? That will definitely speed
up fix.
Thanks!
Gerry
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu.c | 15 +--
drivers/iommu/intel_irq_remapping.c |4
2 files changed, 17
Hi all,
Sorry, send email too quick. Will resend with correct title.
Thanks!
Gerry
On 2015/7/31 0:44, Jiang Liu wrote:
> Hi Alexander, Mark, Alex,
> Could you please help to apply the debug patch and send me back
> the dmesg? Please also help to turn kernel paramemter &q
g multiple-MSI at hand. So may I remotely
access your system from Intel internal network? That will definitely speed
up fix.
Thanks!
Gerry
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu.c | 15 +--
drivers/iommu/intel_irq_remapping.c |4
2 files changed, 17
On 2015/6/18 15:54, fandongdong wrote:
>
>
> 在 2015/6/18 15:27, fandongdong 写道:
>>
>>
>> 在 2015/6/18 13:40, Jiang Liu 写道:
>>> On 2015/6/17 22:36, Alex Williamson wrote:
>>>> On Wed, 2015-06-17 at 13:52 +0200, Joerg Roedeljoro wrote:
>>&
On 2015/6/17 22:36, Alex Williamson wrote:
> On Wed, 2015-06-17 at 13:52 +0200, Joerg Roedeljoro wrote:
>> On Wed, Jun 17, 2015 at 10:42:49AM +, 范冬冬 wrote:
>>> Hi maintainer,
>>>
>>> We found a problem that a panic happen when cpu was hot-removed. We also
>>> trace the problem according to the
On 2015/6/3 16:20, xiaofeng.yan wrote:
> change tabke to take.
>
> Signed-off-by: xiaofeng.yan
> ---
> drivers/iommu/intel_irq_remapping.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/intel_irq_remapping.c
> b/drivers/iommu/intel_irq_remapping.c
> in
and commit message is written by Jiang.
Signed-off-by: Thomas Gleixner
Signed-off-by: Jiang Liu
---
Hi Thomas,
I missed this patch when rebasing my patch set. It may be
fold into commit b106ee63abcc ("irq_remapping/vt-d: Enhance Intel IR
driver to support hierarchical irqdomains&q
Move check of cfg->move_in_progress into send_cleanup_vector() to
prepare for simplifying struct irq_cfg.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafae
Now only intel_irq_remapping.c access irq_2_iommu, so move it from
hw_irq.h into intel_irq_remapping.c.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J
Now only amd_iommu.c access irq_2_irte, so move it from hw_irq.h into
amd_iommu.c.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of irq_cfg.irq_remapped, so kill it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now we have converted to hierarchy irqdomain, so clean up unused
interfaces.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.set_affinity anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.setup_entry anymore, so kill it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.print_entries anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there's no user of irq_remapping_print_chip(), so kill it.
Signed-off-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h |2 --
drivers/iommu/irq_remapping.c| 13 -
2 files changed, 15 deletions(-)
diff --git a/arch/x86/include/asm/irq_remapping.h
b/arc
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code and interfaces.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Refine the interfaces to create IRQ for DMAR unit. It's a preparation
for converting DMAR IRQ to hierarchy irqdomain on x86.
It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h
to dmar.h. They are not irq_remapping specific.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Enhance MSI code to support hierarchy irqdomain, it helps to make
the architecture more clear.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Prepare for support hierarchy irqdomain by changing function prototypes,
should be no function changes.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Enhance AMD interrupt remapping driver to support hierarchy irqdomain,
it will simplify the code eventually.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Enhance Intel interrupt remapping driver to support hierarchy irqdomain,
it will simplify the code eventually. It also implements intel_ir_chip
to support stacked irq_chip.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc
use irqdomain framework.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Joerg Roedel
,
compose_remapped_msi_msg, setup_hpet_msi_remapped, setup_remapped_irq.
3) Simplify x86_io_apic_ops and x86_msi.
We could achieve a much more clear architecture with all these changes
applied.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
&& ACPI && (X86 || IA64_GENERIC))
warning: (IA64) selects PM which has unmet direct dependencies (PM_SLEEP ||
PM_RUNTIME)
warning: (IA64_DIG_VTD) selects INTEL_IOMMU which has unmet direct dependencies
(IOMMU_SUPPORT && PCI_MSI && ACPI && (X86 || IA64_GENERIC))
S
Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Move check of cfg->move_in_progress into send_cleanup_vector() to
prepare for simplifying struct irq_cfg.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafae
Now only intel_irq_remapping.c access irq_2_iommu, so move it from
hw_irq.h into intel_irq_remapping.c.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J
Now only amd_iommu.c access irq_2_irte, so move it from hw_irq.h into
amd_iommu.c.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy
Now there is no user of irq_cfg.irq_remapped, so kill it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc
Now we have converted to hierarchy irqdomain, so clean up unused
interfaces.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now we have converted to hierarchy irqdomain, so clean up unused code.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.setup_entry anymore, so kill it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.set_affinity anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there is no user of x86_io_apic_ops.print_entries anymore, so kill
it.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc
Now there's no user of irq_remapping_print_chip(), so kill it.
Signed-off-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h |2 --
drivers/iommu/irq_remapping.c| 13 -
2 files changed, 15 deletions(-)
diff --git a/arch/x86/include/asm/irq_remapping.h
b/arc
Refine the interfaces to create IRQ for DMAR unit. It's a preparation
for converting DMAR IRQ to hierarchy irqdomain on x86.
It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h
to dmar.h. They are not irq_remapping specific.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code and interfaces.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Now MSI interrupt has been converted to new hierarchy irqdomain
interfaces, so kill legacy MSI related code.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Enhance MSI code to support hierarchy irqdomain, it helps to make
the architecture more clear.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc
Enhance Intel interrupt remapping driver to support hierarchy irqdomain,
it will simplify the code eventually. It also implements intel_ir_chip
to support stacked irq_chip.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc
,
compose_remapped_msi_msg, setup_hpet_msi_remapped, setup_remapped_irq.
3) Simplify x86_io_apic_ops and x86_msi.
We could achieve a much more clear architecture with all these changes
applied.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Prepare for support hierarchy irqdomain by changing function prototypes,
should be no function changes.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
Enhance AMD interrupt remapping driver to support hierarchy irqdomain,
it will simplify the code eventually.
Signed-off-by: Jiang Liu
Acked-by: Joerg Roedel
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin
use irqdomain framework.
Signed-off-by: Jiang Liu
Cc: Konrad Rzeszutek Wilk
Cc: Tony Luck
Cc: Greg Kroah-Hartman
Cc: iommu@lists.linux-foundation.org
Cc: Bjorn Helgaas
Cc: Benjamin Herrenschmidt
Cc: Rafael J. Wysocki
Cc: Randy Dunlap
Cc: Yinghai Lu
Cc: Borislav Petkov
Cc: Joerg Roedel
Assign intel_irq_remap_ops to remap_ops only if
intel_irq_remap_ops.prepare() succeeds.
Signed-off-by: Jiang Liu
---
drivers/iommu/irq_remapping.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
abled, otherwise X2APIC will
always be disabled when CONFIG_HYPERVISOR_GUEST is disabled and IR
doesn't work in X2APIC mode.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/k
Refine code by normailizing the way to detect whether IR is enabled.
Signed-off-by: Jiang Liu
---
drivers/iommu/irq_remapping.c | 38 ++
1 file changed, 14 insertions(+), 24 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu
Simplify irq_remapping code by killing irq_remapping_supported() and
related interfaces.
Joerg posted a similar patch at https://lkml.org/lkml/2014/12/15/490,
so assume an signed-off from Joerg.
Signed-off-by: Jiang Liu
Signed-off-by: Joerg Roedel
---
arch/x86/include/asm/irq_remapping.h
Change variable disable_irq_remap to be static and simplify the code.
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu_init.c |6 +-
drivers/iommu/intel_irq_remapping.c |5 -
drivers/iommu/irq_remapping.c |3 +--
drivers/iommu/irq_remapping.h |2
From: Joerg Roedel
This allows to get rid of the irq_remapping_supported()
function and all its call-backs into the Intel and AMD
IOMMU drivers.
Signed-off-by: Joerg Roedel
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu_init.c |3 +++
1 file changed, 3 insertions(+)
diff --git a
ion
intel_enable_irq_remapping().
Signed-off-by: Joerg Roedel
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 19 +--
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c
b/drivers/iommu/intel_irq_remapping.c
in
than 255. So treat IR in XAPIC mode as same as IR is disabled
when enabling CPU X2APIC.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c | 85 +--
1 file changed, 41 insertions(+), 44 deletions(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch
m wakeup disabled by ACPI
[1.178612] acpiphp: Slot [8] registered
[1.183095] pci :00:02.0: PCI bridge to [bus 01]
[1.188867] acpiphp: Slot [2] registered
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |8
1 file changed, 8 insertions(+)
diff --git a/arch/x86/
Prepare for killing function irq_remapping_supported() by moving code
from intel_irq_remapping_supported() into intel_prepare_irq_remapping().
Combined with patch from Joerg at https://lkml.org/lkml/2014/12/15/487,
so assume an signed-off from Joerg.
Signed-off-by: Jiang Liu
Signed-off-by
fault reason 36] Detected reserved fields in the
IRTE entry
[ 37.911192] dmar: INTR-REMAP: Request device [[f0:1f.7] fault index 2
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/
X2APIC will be disabled if user specifies "nox2apic" on kernel command
line, even when x2apic_preenabled is true. So correctly detect X2APIC
status by using x2apic_enabled() instead of x2apic_preenabled.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |2 +-
1 file
also passes Fengguang's 0day test suites.
Due to lack of hardware platforms for tests, tests on AMD platform are
welcomed!
V1->V2:
1) Rebase onto v3.19-rc3
Jiang Liu (11):
x86/apic: Panic if kernel doesn't support x2apic but BIOS has enabled
x2apic
x86/apic: Kill useless varia
required to enable irq
remapping.
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.232633...@linutronix.de
Signed-off-by: Thomas Gleixner
Signed-off-by: Jiang Liu
---
arch/x86/
From: Thomas Gleixner
No reason anymore to do GFP_ATOMIC allocations which are not harmful
in the normal bootup case, but matter in the physical hotplug
scenario.
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http
Local variable x2apic_enabled has been assigned to but never referred,
so kill it.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 8b58e23bc5e8
get rid of the
horrible hackaround in irq_domain_add() later.
[Jiang] Rebased onto v3.19
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.313026...@linutronix.de
Signed-off-by
On 2014/12/24 10:32, Zhang, Yang Z wrote:
> Jiang Liu wrote on 2014-12-24:
>> On 2014/12/24 9:38, Zhang, Yang Z wrote:
>>> Paolo Bonzini wrote on 2014-12-23:
>>>>
>>>>
>>>> On 23/12/2014 10:07, Wu, Feng wrote:
>>>>>> On 23/12/
On 2014/12/24 9:38, Zhang, Yang Z wrote:
> Paolo Bonzini wrote on 2014-12-23:
>>
>>
>> On 23/12/2014 10:07, Wu, Feng wrote:
On 23/12/2014 01:37, Zhang, Yang Z wrote:
> I don't quite understand it. If user set an interrupt's affinity
> to a CPU, but he still see the interrupt delivers t
Assign intel_irq_remap_ops to remap_ops only if
intel_irq_remap_ops.prepare() succeeds.
Signed-off-by: Jiang Liu
---
drivers/iommu/irq_remapping.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
From: Joerg Roedel
This allows to get rid of the irq_remapping_supported()
function and all its call-backs into the Intel and AMD
IOMMU drivers.
Signed-off-by: Joerg Roedel
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu_init.c |3 +++
1 file changed, 3 insertions(+)
diff --git a
Simplify irq_remapping code by killing irq_remapping_supported() and
related interfaces.
Joerg posted a similar patch at https://lkml.org/lkml/2014/12/15/490,
so assume an signed-off from Joerg.
Signed-off-by: Jiang Liu
Signed-off-by: Joerg Roedel
---
arch/x86/include/asm/irq_remapping.h
Change variable disable_irq_remap to be static and simplify the code.
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu_init.c |6 +-
drivers/iommu/intel_irq_remapping.c |5 -
drivers/iommu/irq_remapping.c |3 +--
drivers/iommu/irq_remapping.h |2
Refine code by normailizing the way to detect whether IR is enabled.
Signed-off-by: Jiang Liu
---
drivers/iommu/irq_remapping.c | 38 ++
1 file changed, 14 insertions(+), 24 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu
than 255. So treat IR in XAPIC mode as same as IR is disabled
when enabling CPU X2APIC.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c | 85 +--
1 file changed, 41 insertions(+), 44 deletions(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch
required to enable irq
remapping.
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.232633...@linutronix.de
Signed-off-by: Thomas Gleixner
Signed-off-by: Jiang Liu
---
arch/x86/
abled, otherwise X2APIC will
always be disabled when CONFIG_HYPERVISOR_GUEST is disabled and IR
doesn't work in X2APIC mode.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/k
fault reason 36] Detected reserved fields in the
IRTE entry
[ 37.911192] dmar: INTR-REMAP: Request device [[f0:1f.7] fault index 2
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/
Prepare for killing function irq_remapping_supported() by moving code
from intel_irq_remapping_supported() into intel_prepare_irq_remapping().
Combined with patch from Joerg at https://lkml.org/lkml/2014/12/15/487,
so assume an signed-off from Joerg.
Signed-off-by: Jiang Liu
Signed-off-by
ion
intel_enable_irq_remapping().
Signed-off-by: Joerg Roedel
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 19 +--
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/drivers/iommu/intel_irq_remapping.c
b/drivers/iommu/intel_irq_remapping.c
in
From: Thomas Gleixner
No reason anymore to do GFP_ATOMIC allocations which are not harmful
in the normal bootup case, but matter in the physical hotplug
scenario.
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http
X2APIC will be disabled if user specifies "nox2apic" on kernel command
line, even when x2apic_preenabled is true. So correctly detect X2APIC
status by using x2apic_enabled() instead of x2apic_preenabled.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |2 +-
1 file
get rid of the
horrible hackaround in irq_domain_add() later.
[Jiang] Rebased onto v3.19
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Acked-by: Joerg Roedel
Cc: Jiang Liu
Cc: x...@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.313026...@linutronix.de
Signed-off-by
Local variable x2apic_enabled has been assigned to but never referred,
so kill it.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 9c43899433e3
m wakeup disabled by ACPI
[1.178612] acpiphp: Slot [8] registered
[1.183095] pci :00:02.0: PCI bridge to [bus 01]
[1.188867] acpiphp: Slot [2] registered
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c |8
1 file changed, 8 insertions(+)
diff --git a/arch/x86/
.
Signed-off-by: Thomas Gleixner
Tested-by: Borislav Petkov
Cc: Jiang Liu
Cc: Joerg Roedel
Cc: x...@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.153643...@linutronix.de
Signed-off-by: Thomas Gleixner
Signed-off-by: Jiang Liu
---
arch/x86/kernel/smpboot.c |8 +---
1 file
panic.
2) Row 7 boots successfully instead of livelocking.
The patch set also passes Fengguang's 0day test suites.
Due to lack of hardware platforms for tests, tests on AMD platform are
welcomed!
Jiang Liu (11):
x86/apic: Panic if kernel doesn't support x2apic but BIOS has enabled
On 2014/12/16 3:54, Thomas Gleixner wrote:
> On Mon, 15 Dec 2014, Jiang Liu wrote:
>> On 2014/12/15 23:13, Joerg Roedel wrote:
>>> Hi,
>>>
>>> here is a patch-set against tip/x86/apic to fix an initialization order
>>> problem with the IRQ remap
On 2014/12/15 23:13, Joerg Roedel wrote:
> Hi,
>
> here is a patch-set against tip/x86/apic to fix an initialization order
> problem with the IRQ remapping code. The problem is in the ordering of
> the irq_remapping_prepare and irq_remapping_supported functions.
>
> Currently the call-order is i
Now there's no user of irq_remapping_print_chip(), so kill it.
Signed-off-by: Jiang Liu
---
arch/x86/include/asm/irq_remapping.h |2 --
drivers/iommu/irq_remapping.c| 13 -
2 files changed, 15 deletions(-)
diff --git a/arch/x86/include/asm/irq_remapping.h
b/arc
Prepare for killing function irq_remapping_supported() by moving code
from intel_irq_remapping_supported() into intel_prepare_irq_remapping().
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 54 ++-
1 file changed, 21 insertions(+), 33
Refine code by normailizing the way to detect whether IR is enabled.
Signed-off-by: Jiang Liu
---
drivers/iommu/irq_remapping.c | 30 --
1 file changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
Change variable disable_irq_remap to be static for easy maintenance.
Signed-off-by: Jiang Liu
---
drivers/iommu/amd_iommu_init.c |5 ++---
drivers/iommu/intel_irq_remapping.c |1 -
drivers/iommu/irq_remapping.c |3 +--
drivers/iommu/irq_remapping.h |2 --
4
Refine enable_IR_x2apic() and related functions for better maintenence.
It also changes the way to treat IR in XAPIC mode as the same as IR is
disabled when enabling X2APIC.
Signed-off-by: Jiang Liu
---
arch/x86/kernel/apic/apic.c | 78 ---
1 file
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