From: Jake Oshins
This patch makes 16GB GPUs work in Hyper-V VMs, since, for
compatibility reasons, the Hyper-V BIOS lists MMIO ranges in 2GB
chunks in its root bus's _CRS object.
Signed-off-by: Jake Oshins
---
drivers/hv/vmbus_drv.c | 16
1 file changed, 16 insertions(+)
dif
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 24d0b65..c9a9eed 100644
--- a/include/
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls.
This is necessary for retargeting an interrupt when it is given a new
affinity and vector.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h |
From: Jake Oshins
This version of the patch series incorporates feedback from Gerry Liu.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupts at chosen vectors on specific cpus.
Second, ma
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, wherein a
component can expose a set of IRQs which are managed by a particular
interrupt controller chip or other subsystem. The PCI driver exposes
the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from
PCI
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
include/asm-generic/pci.h
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V
virtual processor number. This is necessary because the hypervisor needs
to know which virtual processor to target when making a mapping in the
Interrupt Redirection Table in the I/O MMU.
Signed-off-by: Jake Os
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V
virtual processor number. This is necessary because the hypervisor needs
to know which virtual processor to target when making a mapping in the
Interrupt Redirection Table in the I/O MMU.
Signed-off-by: Jake Os
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
drivers/pci/probe.c
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, wherein a
component can expose a set of IRQs which are managed by a particular
interrupt controller chip or other subsystem. The PCI driver exposes
the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from
PCI
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This version of the patch series incorporates feedback from Mark Zyngier,
making this build on arm/arm64.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupts at chosen ve
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls.
This is necessary for retargeting an interrupt when it is given a new
affinity and vector.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h |
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 24d0b65..c9a9eed 100644
--- a/include/
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls.
This is necessary for retargeting an interrupt when it is given a new
affinity and vector.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h |
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 24d0b65..c9a9eed 100644
--- a/include/
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, wherein a
component can expose a set of IRQs which are managed by a particular
interrupt controller chip or other subsystem. The PCI driver exposes
the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from
PCI
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
drivers/pci/probe.c
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V
virtual processor number. This is necessary because the hypervisor needs
to know which virtual processor to target when making a mapping in the
Interrupt Redirection Table in the I/O MMU.
Signed-off-by: Jake Os
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
This version of the patch series removes warning when compiling x86
32-bit.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupts at chosen vectors on specific cpus.
Secon
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls.
This is necessary for retargeting an interrupt when it is given a new
affinity and vector.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h |
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, wherein a
component can expose a set of IRQs which are managed by a particular
interrupt controller chip or other subsystem. The PCI driver exposes
the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from
PCI
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V
virtual processor number. This is necessary because the hypervisor needs
to know which virtual processor to target when making a mapping in the
Interrupt Redirection Table in the I/O MMU.
Signed-off-by: Jake Os
From: Jake Oshins
This version of the patch series removes warning when compiling x86
32-bit while still making it build cleanly for x64.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupt
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
drivers/pci/probe.c
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 24d0b65..c9a9eed 100644
--- a/include/
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
drivers/pci/probe.c
From: Jake Oshins
This is a resend of patches that enable PCI pass-through within Hyper-V
VMs. This patch series only includes those which were deemed appropriate
for being incorportated via the PCI tree. All other patches in previous
patch series have gone through other trees and are now in ma
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This version incorporates feedback from Bjorn Helgaas and fixes a build
break reported by the kbuild test robot.
This is a resend of patches that enable PCI pass-through within Hyper-V
VMs. This patch series only includes those which were deemed appropriate
for being incorport
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
include/linux/pci.h
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This version incorporates more feedback from Bjorn Helgaas. Most notably,
I removed some debugging code and I consistently used architectural
means for getting the PCI domain instead of just reaching into the sysdata.
This is a resend of patches that enable PCI pass-through wi
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 15 +++
include/linux/pci.h
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a
PCI Express device is passed through to a guest VM under Hyper-V. The
device can be single- or multi-function. The interrupts for the devices
are managed by an IRQ domain, implemented within the driver.
From: Jake Oshins
This patch fixes a race condition in this driver. Using the
function pci_domain_nr() only works if the PCI bus has already
been fully created. This patch just deletes one call site,
as it was in debug prints which aren't strictly necessary.
Another call site is changed to look
From: Jake Oshins
In existing code, this tree of resources is created
in single-threaded code and never modified after it is
created, and thus needs no locking. This patch introduces
a semaphore for tree access, as other patches in this
series introduce run-time modifications of this resource
tr
From: Jake Oshins
Hyper-V VMs expose paravirtual drivers through a mechanism called
VMBus, which is managed by hv_vmbus.ko. For each paravirtual service
instance, this driver exposes a new child device. Some of these child
devices need memory address space, into which Hyper-V will map things
li
From: Jake Oshins
This patch modifies all the callers of vmbus_mmio_allocate()
to call vmbus_mmio_free() instead of release_mem_region().
Signed-off-by: Jake Oshins
---
drivers/pci/host/pci-hyperv.c | 14 +++---
drivers/video/fbdev/hyperv_fb.c | 4 ++--
2 files changed, 9 insertions
From: Jake Oshins
This patch changes vmbus_allocate_mmio() and vmbus_free_mmio() so
that when child paravirtual devices allocate memory-mapped I/O
space, they allocate it privately from a resource tree pointed
at by hyperv_mmio and also by the public resource tree
iomem_resource. This allows the
From: Jake Oshins
This patch introduces a function that reverses everything
done by vmbus_allocate_mmio(). Existing code just called
release_mem_region(). Future patches in this series
require a more complex sequence of actions, so this function
is introduced to wrap those actions.
Signed-off-
From: Jake Oshins
A patch later in this series allocates child nodes
in this resource tree. For that to work, this tree
needs to be sorted in ascending order.
Signed-off-by: Jake Oshins
---
drivers/hv/vmbus_drv.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/hv
From: Jake Oshins
This patch does some slight refactoring on the hv_vmbus driver and its
dependents and then introduces a new paravirtual front-end driver for PCI
which supports PCI Express devices passed through to a Linux guest running
in a Hyper-V VM.
To support this front-end, several new me
From: Jake Oshins
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 6fec42d..1903238 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1144,6 +1144,17 @@
From: Jake Oshins
Signed-off-by: Jake Oshins
---
drivers/hv/vmbus_drv.c | 16
include/linux/hyperv.h | 2 ++
2 files changed, 18 insertions(+)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 067a469..65e4eb6 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers
From: Jake Oshins
Signed-off-by: Jake Oshins
---
drivers/hv/vmbus_drv.c | 87 -
drivers/video/fbdev/hyperv_fb.c | 46 ++
include/linux/hyperv.h | 7 +++-
3 files changed, 112 insertions(+), 28 deletions(-)
diff --gi
From: Jake Oshins
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/mshyperv.h | 2 ++
arch/x86/kernel/cpu/mshyperv.c | 30 ++
2 files changed, 32 insertions(+)
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index c163215..bf7789e
From: Jake Oshins
Signed-off-by: Jake Oshins
---
drivers/hv/vmbus_drv.c | 105 ++--
drivers/video/fbdev/hyperv_fb.c | 2 +-
include/linux/hyperv.h | 2 +-
3 files changed, 92 insertions(+), 17 deletions(-)
diff --git a/drivers/hv/vmbus_
From: Jake Oshins
drivers:pci:hv: Update MAINTAINERS
drivers:pci:hv: New paravirtual PCI front-end for Hyper-V VMs
Signed-off-by: Jake Oshins
---
MAINTAINERS|1 +
drivers/pci/Kconfig|9 +
drivers/pci/host/Makefile |1 +
drivers/pci/host/hv_pcifr
From: Jake Oshins
Currently, hv_vmbus finds the ranges of memory-mapped I/O space that are
designated for paravirtual (and fully virtual) devices by the virtual
firmware (BIOS or UEFI) and exports the answer. The hyperv_fb video
driver then takes that information and uses it to claim a range of
From: Jake Oshins
This patch updates the list of VMBus channel GUIDs, defining the one
for PCI Express pass-through.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 6fec
From: Jake Oshins
This patch, when the kernel is built with CONFIG_HYPERV, exposes functions
that would allow a paravirtual PCI front-end driver to hook MSI (message-
signaled interrupt) message creation.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/mshyperv.h | 2 ++
arch/x86/kernel/c
From: Jake Oshins
This patch exports a function which maps Linux processor number onto Hyper-V
virtual processor number. This is necessary in order to map message-
signaled interrupts (MSIs) into a VM, as the hypervisor needs to know the
right target VP.
Signed-off-by: Jake Oshins
---
drivers
From: Jake Oshins
This patch supplies a new driver, hv_pcifront, which exposes new root PCI
buses. When a Hyper-V VM running Linux is offered a paravirtual PCI bus
in order to expose a device passed through on that bus, this drver
registers a new bus with the PCI driver. This new bus is bus "ze
From: Jake Oshins
This patch does some slight refactoring on the hv_vmbus driver and its
dependents and then introduces a new paravirtual front-end driver for PCI
which supports PCI Express devices passed through to a Linux guest running
in a Hyper-V VM.
To support this front-end, several new me
From: Jake Oshins
Before this patch, hv_vmbus would search the ACPI namespace above its
device looking for a _CRS (current resources) object, and hunt through
the list of resources in there looking for one that described memory-
mapped I/O space above the 4GB line. It then exported the result fo
From: Jake Oshins
This patch series differs from the previous one (v2) in that it fixes
kernel-doc commenting style and changes a few variable and function
names to be more understandable.
These patches do some slight refactoring on the hv_vmbus driver and its
dependents and then introduces a ne
From: Jake Oshins
This patch updates the list of VMBus channel GUIDs, defining the one
for PCI Express pass-through.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 2e40
From: Jake Oshins
Before this patch, hv_vmbus would search the ACPI namespace above its
device looking for a _CRS (current resources) object, and hunt through
the list of resources in there looking for one that described memory-
mapped I/O space above the 4GB line. It then exported the result fo
From: Jake Oshins
Currently, hv_vmbus finds the ranges of memory-mapped I/O space that are
designated for paravirtual (and fully virtual) devices by the virtual
firmware (BIOS or UEFI) and exports the answer. The hyperv_fb video
driver then takes that information and uses it to claim a range of
From: Jake Oshins
This patch, when the kernel is built with CONFIG_HYPERV, exposes functions
that would allow a paravirtual PCI front-end driver to hook MSI (message-
signaled interrupt) message creation.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/mshyperv.h | 2 ++
arch/x86/kernel/c
From: Jake Oshins
This patch exports a function which maps Linux CPU number onto Hyper-V
virtual processor number. This is necessary in order to map message-
signaled interrupts (MSIs) into a VM, as the hypervisor needs to know the
right target VP.
Signed-off-by: Jake Oshins
---
drivers/hv/vm
From: Jake Oshins
This patch supplies a new driver, hv_pcifront, which exposes new root PCI
buses. When a Hyper-V VM running Linux is offered a paravirtual PCI bus
in order to expose a device passed through on that bus, this drver
registers a new bus with the PCI driver. This new bus is bus "ze
From: Jake Oshins
This patch changes the logic in hv_vmbus to record all of the ranges in the
VM's firmware (BIOS or UEFI) that offer regions of memory-mapped I/O space for
use by paravirtual front-end drivers. The old logic just found one range
above 4GB and called it good. This logic will fin
From: Jake Oshins
This patch deletes the logic from hyperv_fb which picked a range of MMIO space
for the frame buffer and adds new logic to hv_vmbus which picks ranges for
child drivers. The new logic isn't quite the same as the old, as it considers
more possible ranges.
Signed-off-by: Jake Osh
From: Jake Oshins
This patch series changes the way that hv_vmbus searches for ranges of
memory-mapped I/O space (MMIO) which can be used by its children. The old
way just found the one and only range above 4GB. This one makes all ranges
exposed in the VM's firmware potential candidates. It a
From: Jake Oshins
This patch defines the channel type for a paravirtual PCI front-end within
a Hyper-V VM.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 02393b6..ab173
From: Jake Oshins
This patch introduces a driver which exposes a root PCI bus whenever a PCI
Express device is passed through to a Hyper-V VM. The device can be single-
or multi-function. The interrupts for the devices are managed by an IRQ
domain, implemented within this driver.
Signed-off-by
From: Jake Oshins
The Linux kernel already has the concept of IRQ domain, wherein a component
can expose a set of IRQs which are managed by a particular interrupt controller
chip or other subsystem. The PCI driver exposes the notion of an IRQ domain
for Message-Signaled Interrupts (MSI) from PCI
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V virtual
processor number. This is necessary because the hypervisor needs to know which
virtual processors to target when making a mapping in the Interrupt Redirection
Table in the I/O MMU.
Signed-off-by: Jake
From: Jake Oshins
This patch series exposes the primitives necessary for an interrupt domain
in a module and then introduces a new driver. This driver exposes a root
PCI bus when running in a Hyper-V VM for each device which is passed through
to the VM from the physical host.
This patch series
From: Jake Oshins
This patch allows a PCI front-end implementation to supply an fwnode_handle
associated with a root PCI bus, optionally. If supplied, the PCI driver
records this.
This patch supports the next patch in the series, which looks up an IRQ domain
through this handle.
Signed-off-by:
From: Jake Oshins
The existing PCI code looks for an IRQ domain associated with a root PCI bus
by looking in the Open Firmware tree. This patch introduces a second way
to identify the associated IRQ domain, if the lookup in the OF tree fails.
The handle used for the IRQ domain lookup was introdu
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls. This
is necessary for retargeting an interrupt when it is given a new affinity.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h | 2 +-
inc
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index ea0a0e3..5587899 100644
--- a/include/
From: Jake Oshins
The Linux kernel already has the concept of IRQ domain, wherein a component
can expose a set of IRQs which are managed by a particular interrupt controller
chip or other subsystem. The PCI driver exposes the notion of an IRQ domain
for Message-Signaled Interrupts (MSI) from PCI
From: Jake Oshins
This patch series updates the one sent on Sept. 10, mostly by rebasing on
Mark Zyngier's changes around IRQ domains and the OF tree.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targ
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V virtual
processor number. This is necessary because the hypervisor needs to know which
virtual processors to target when making a mapping in the Interrupt Redirection
Table in the I/O MMU.
Signed-off-by: Jake O
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a PCI
Express device is passed through to a guest VM under Hyper-V. The device can
be single- or multi-function. The interrupts for the devices are managed by an
IRQ domain, implemented within the driver.
From: Jake Oshins
This patch exposes the mapping between Linux CPU number and Hyper-V virtual
processor number. This is necessary because the hypervisor needs to know which
virtual processor to target when making a mapping in the Interrupt Redirection
Table in the I/O MMU.
Signed-off-by: Jake Os
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 11 +++
1 file changed, 11 insertions(
From: Jake Oshins
This patch series incorporates feedback from Gerry Liu
(jiang@linux.intel.com).
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupts at chosen vectors on specfic cpus.
From: Jake Oshins
This patch exposes the function that hv_vmbus.ko uses to make hypercalls. This
is necessary for retargeting an interrupt when it is given a new affinity and
vector.
Signed-off-by: Jake Oshins
---
drivers/hv/hv.c | 20 ++--
drivers/hv/hyperv_vmbus.h |
From: Jake Oshins
This patch adds a second way of finding an IRQ domain associated with
a root PCI bus. After looking to see if one can be found through
the OF tree, it attempts to look up the IRQ domain through an
fwnode_handle stored in the pci_sysdata struct.
Signed-off-by: Jake Oshins
---
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, whereing a component
can expose a set of IRQs which are managed by a particular interrupt controller
chip or other subsystem. The PCI driver exposes the notion of an IRQ domain
for Message-Signaled Interrupts (MSI) from PCI
From: Jake Oshins
This patch introduces a new driver which exposes a root PCI bus whenever a PCI
Express device is passed through to a guest VM under Hyper-V. The device can
be single- or multi-function. The interrupts for the devices are managed by an
IRQ domain, implemented within the driver.
From: Jake Oshins
This defines the channel type for PCI front-ends in Hyper-V VMs.
Signed-off-by: Jake Oshins
---
include/linux/hyperv.h | 11 +++
1 file changed, 11 insertions(+)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index ea0a0e3..5587899 100644
--- a/include/
From: Jake Oshins
This patch series incorporates feedback related to the version sent yesterday.
First, export functions that allow correlating Hyper-V virtual processors
and Linux cpus, along with the means for invoking a hypercall that targets
interrupts at chosen vectors on specfic cpus.
Sec
From: Jake Oshins
The Linux kernel already has the concpet of IRQ domain, whereing a component
can expose a set of IRQs which are managed by a particular interrupt controller
chip or other subsystem. The PCI driver exposes the notion of an IRQ domain
for Message-Signaled Interrupts (MSI) from PCI
From: Jake Oshins
This patch adds an fwnode_handle to struct pci_sysdata, which is
used by the next patch in the series when trying to locate an
IRQ domain associated with a root PCI bus.
Signed-off-by: Jake Oshins
---
arch/x86/include/asm/pci.h | 11 +++
1 file changed, 11 insertions(
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