From: Christoffer Dall cd...@cs.columbia.edu
Adds support in the identity mapping feature that allows KVM to setup
identity mapping for the Hyp mode with the AP[1] bit set as required by
the specification and also supports freeing created sub pmd's after
finished use.
These two functions
(hyp_pgd, start, end);
- free_hyp_pmds(pgd_hyp);
See the implementation for more details.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_arm.h | 103 +
arch/arm/include/asm/kvm_asm.h | 23
arch/arm/include/asm
are managed using
a bitmap and assigned when creating the VM in kvm_arch_init_vm()
where the 2nd stage pgd is also allocated. The table is freed in
kvm_arch_destroy_vm(). Both functions are called from the main
KVM code.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm
match those used in ARM, I am yet to be convinced why this is necessary.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
Documentation/virtual/kvm/api.txt | 10 ++-
arch/arm/include/asm/kvm.h|8 ++
arch/arm/include/asm/kvm_arm.h|1 +
arch/arm/kvm/arm.c
running in the guest.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm.h |1
arch/arm/include/asm/kvm_arm.h | 26 ++
arch/arm/include/asm/kvm_host.h |8 +
arch/arm/kernel/armksyms.c |7 +
arch/arm/kernel/asm-offsets.c | 33
From: Christoffer Dall cd...@cs.columbia.edu
Adds a new important function in the main KVM/ARM code called
handle_exit() which is called from kvm_arch_vcpu_ioctl_run() on returns
from guest execution. This function examines the Hyp-Syndrome-Register
(HSR), which contains information telling KVM
From: Christoffer Dall cd...@cs.columbia.edu
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
pgprot_guest variables used to map 2nd stage memory for KVM guests.
Signed-off
From: Christoffer Dall cd...@cs.columbia.edu
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and forwarding reads
and writes to QEMU which performs the device emulation
From: Christoffer Dall cd...@cs.columbia.edu
When the guest executes a WFI instruction the operation is trapped to
KVM, which emulates the instruction in software. There is no correlation
between a guest executing a WFI instruction and actually puttin the
hardware into a low-power mode, since
marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_host.h |4 -
arch/arm/include/asm/kvm_mmu.h |1
arch/arm/kvm/arm.c | 175 +++
arch/arm/kvm/emulate.c |2
arch
From: Marc Zyngier marc.zyng...@arm.com
A guest may need to know which CPU it has booted on (and Linux does).
Now that we can run KVM on a SMP host, QEMU may be running on any
CPU. In that case, directly reading MPIDR will give an inconsistent
view on the guest CPU number (among other problems).
This patch is a beginning attempt to support SMP guests. So far we only
add locking for the second stage PGD stored on the kvm_arch struct.
WARNING: This code is untested and does not yet support SMP guests.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm
On Sun, Dec 11, 2011 at 10:18 AM, Jan Kiszka jan.kis...@web.de wrote:
Just found two, maybe three nits while browsing by:
On 2011-12-11 11:24, Christoffer Dall wrote:
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two
On Sun, Dec 11, 2011 at 6:32 AM, Peter Maydell peter.mayd...@linaro.org wrote:
On 11 December 2011 10:24, Christoffer Dall
c.d...@virtualopensystems.com wrote:
The following series implements KVM support for ARM processors,
specifically on the Cortex A-15 platform.
Still on the to-do list
On Sun, Dec 11, 2011 at 11:03 AM, Peter Maydell
peter.mayd...@linaro.org wrote:
On 11 December 2011 15:18, Jan Kiszka jan.kis...@web.de wrote:
Just found two, maybe three nits while browsing by:
On 2011-12-11 11:24, Christoffer Dall wrote:
+ARM uses two types of interrupt lines per CPU, ie
On Dec 11, 2011, at 2:48 PM, Peter Maydell peter.mayd...@linaro.org wrote:
On 11 December 2011 19:30, Christoffer Dall
c.d...@virtualopensystems.com wrote:
On Sun, Dec 11, 2011 at 11:03 AM, Peter Maydell
peter.mayd...@linaro.org wrote:
Removing the mask would be wrong since the irq field
On Sun, Dec 11, 2011 at 3:25 PM, Peter Maydell peter.mayd...@linaro.org wrote:
On 11 December 2011 20:07, Christoffer Dall
christofferd...@christofferdall.dk wrote:
Well, if it was just irq 1, then I hear you, but it would be (irq
cpu_idx) 1 which I don't think is more clear.
Er, what
On Sun, Dec 11, 2011 at 5:35 PM, Peter Maydell peter.mayd...@linaro.org wrote:
On 11 December 2011 22:12, Peter Maydell peter.mayd...@linaro.org wrote:
(Actually what would be clearest would be if the ioctl took the
(interrupt-target, interrupt-line-for-that-target, value-of-line)
tuple as
On Mon, Dec 12, 2011 at 6:06 AM, Marc Zyngier marc.zyng...@arm.com wrote:
On 11/12/11 20:07, Christoffer Dall wrote:
On Dec 11, 2011, at 2:48 PM, Peter Maydell peter.mayd...@linaro.org wrote:
On 11 December 2011 19:30, Christoffer Dall
c.d...@virtualopensystems.com wrote:
On Sun, Dec 11
On Mon, Dec 12, 2011 at 8:28 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:24 PM, Christoffer Dall wrote:
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two lines that can be
either raised or lowered on the VCPU
On Mon, Dec 12, 2011 at 8:54 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:25 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
On Mon, Dec 12, 2011 at 9:40 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:24 PM, Christoffer Dall wrote:
This commit introduces the framework for guest memory management
through the use of 2nd stage translation. Each VM has a pointer
to a level-1 tabled (the pgd field in struct
On Mon, Dec 12, 2011 at 9:50 AM, Avi Kivity a...@redhat.com wrote:
On 12/12/2011 04:38 PM, Christoffer Dall wrote:
Why don't they match? The assignment of lines to actual pins differs,
but essentially it's the same thing (otherwise we'd use a different ioctl).
because
On Mon, Dec 12, 2011 at 8:44 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:25 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Adds a new important function in the main KVM/ARM code called
handle_exit() which is called from kvm_arch_vcpu_ioctl_run() on returns
On Mon, Dec 12, 2011 at 9:12 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:25 PM, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
When the guest executes a WFI instruction the operation is trapped to
KVM, which emulates the instruction in software
On Mon, Dec 12, 2011 at 9:30 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:25 PM, Christoffer Dall wrote:
In order to support KVM on a SMP host, it is necessary to initialize the
hypervisor on all CPUs, mostly by making sure each CPU gets its own
hypervisor stack and runs the HYP init
On Mon, Dec 12, 2011 at 9:32 AM, Avi Kivity a...@redhat.com wrote:
On 12/11/2011 12:25 PM, Christoffer Dall wrote:
From: Marc Zyngier marc.zyng...@arm.com
A guest may need to know which CPU it has booted on (and Linux does).
Now that we can run KVM on a SMP host, QEMU may be running on any
On Mon, Dec 12, 2011 at 10:49 AM, Avi Kivity a...@redhat.com wrote:
On 12/12/2011 05:25 PM, Peter Maydell wrote:
On 12 December 2011 15:15, Avi Kivity a...@redhat.com wrote:
We need to differentiate in how Linux-as-a-guest acts and how the cpu is
supposed to work. A guest operating system
On Sun, Mar 4, 2012 at 8:12 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Thu, 23 Feb 2012 02:32:39 -0500, Christoffer Dall
c.d...@virtualopensystems.com wrote:
From: Christoffer Dall c.d...@virtualopensystems.com
+static void cpu_set_vector(void *vector)
+{
+ unsigned long
Any news on the status of this?
On Thu, Feb 9, 2012 at 8:45 PM, Alexander Graf ag...@suse.de wrote:
On 10.02.2012, at 02:40, Christoffer Dall wrote:
The kvm_vcpu_kick function performs roughly the same funcitonality on
most all architectures, so we shouldn't have separate copies.
PowerPC
Any comments on this one?
On Thu, Feb 9, 2012 at 3:57 PM, Christoffer Dall
c.d...@virtualopensystems.com wrote:
From: Christoffer Dall c.d...@virtualopensystems.com
Introduces a couple of print functions, which are essentially wrappers
around standard printk functions, with a KVM: prefix
On Thu, Feb 23, 2012 at 10:32 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Thu, 23 Feb 2012 02:32:26 -0500, Christoffer Dall
c.d...@virtualopensystems.com wrote:
From: Christoffer Dall c.d...@virtualopensystems.com
Targets KVM support for Cortex A-15 processors.
Contains no real
On Thu, Feb 23, 2012 at 11:00 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Thu, 23 Feb 2012 02:32:39 -0500, Christoffer Dall
c.d...@virtualopensystems.com wrote:
+ /*
+ * Allocate stack pages for Hypervisor-mode
+ */
+ for_each_possible_cpu(cpu)
+ per_cpu
more CP15 accesses
- Support guest WFI calls
- Uses debugfs instead of /proc
- Support compiling in Thumb mode
Changes since v2:
- Performs world-switch code
- Maps guest memory using 2nd stage translation
- Emulates co-processor 15 instructions
- Forwards I/O faults to QEMU.
---
Christoffer
This is a prepatory patch for the KVM/ARM implementation. KVM/ARM will use
the KVM_IRQ_LINE ioctl, which is currently conditional on
__KVM_HAVE_IOAPIC, but ARM obviously doesn't have any IOAPIC support and we
need a separate define.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
From: Marc Zyngier marc.zyng...@arm.com
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
and KVM_ARCH_WANT_MMU_NOTIFIER, like it is being done in the rest of
the KVM code.
Signed-off-by: Marc Zyngier
From: Christoffer Dall cd...@cs.columbia.edu
Targets KVM support for Cortex A-15 processors.
Contains no real functionality but all the framework components,
make files, header files and some tracing functionality.
“Nothing to see here. Move along, move along...
Most functionality is in arch
From: Christoffer Dall cd...@cs.columbia.edu
Sets up the required registers to run code in HYP-mode from the kernel.
By setting the HVBAR the kernel can execute code in Hyp-mode with
the MMU disabled. The HVBAR initially points to initialization code,
which initializes other Hyp-mode registers
to by the pgd as opposed to the non-hyp version which just
clears them.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/pgtable-3level-hwdef.h |1 +
arch/arm/include/asm/pgtable.h |5 +++
arch/arm/kvm/guest.c
functions are called from the main
KVM code.
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_mmu.h |5 ++
arch/arm/kvm/arm.c | 65 ++---
arch/arm/kvm/mmu.c | 103
From: Christoffer Dall cd...@cs.columbia.edu
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two lines that can be
either raised or lowered on the VCPU - the IRQ and FIQ lines.
KVM needs to know which VCPU it must operate
From: Christoffer Dall cd...@cs.columbia.edu
Provides complete world-switch implementation to switch to other guests
running in non-secure modes. Includes Hyp exception handlers that
capture necessary exception information and stores the information on
the VCPU and KVM structures.
Switching
From: Christoffer Dall cd...@cs.columbia.edu
Adds a new important function in the main KVM/ARM code called
handle_exit() which is called from kvm_arch_vcpu_ioctl_run() on returns
from guest execution. This function examines the Hyp-Syndrome-Register
(HSR), which contains information telling KVM
From: Christoffer Dall cd...@cs.columbia.edu
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
pgprot_guest variables used to map 2nd stage memory for KVM guests.
Leverages MMU
From: Christoffer Dall cd...@cs.columbia.edu
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and forwarding reads
and writes to QEMU which performs the device emulation
From: Christoffer Dall cd...@cs.columbia.edu
When the guest executes a WFI instruction the operation is trapped to
KVM, which emulates the instruction in software. There is no correlation
between a guest executing a WFI instruction and actually putting the
hardware into a low-power mode, since
On Mon, Mar 12, 2012 at 11:31 AM, Marc Zyngier marc.zyng...@arm.com wrote:
On 12/03/12 06:52, Christoffer Dall wrote:
From: Christoffer Dall cd...@cs.columbia.edu
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific
On Mon, Mar 12, 2012 at 3:32 PM, Alexander Graf ag...@suse.de wrote:
On 08.03.2012, at 23:45, Christoffer Dall wrote:
Any comments on this one?
While at it, how about you also add the PID? Otherwise it's pretty pointless
to write information into the kernel log, as you still won't know
On Tue, Mar 13, 2012 at 4:34 PM, Alexander Graf ag...@suse.de wrote:
On 08.03.2012, at 22:44, Christoffer Dall wrote:
Any news on the status of this?
On Thu, Feb 9, 2012 at 8:45 PM, Alexander Graf ag...@suse.de wrote:
On 10.02.2012, at 02:40, Christoffer Dall wrote:
The kvm_vcpu_kick
On Thu, Mar 29, 2012 at 6:49 AM, Avi Kivity a...@redhat.com wrote:
On 03/28/2012 11:57 PM, Rusty Russell wrote:
Should this code be dropped altogether? Peter points out that once we
add new regs, they *must* be initialized to correct reset values in case
older QEMU knows nothing
On Thu, Mar 29, 2012 at 1:17 AM, Rusty Russell rusty.russ...@linaro.org wrote:
Rather than just making all of c9 read-zero/write-discard, this changes
it to the explicit profiling registers we need. This is a start for the
future implementation were we actually implement performance
On Thu, Mar 22, 2012 at 8:41 PM, Rusty Russell rusty.russ...@linaro.org wrote:
As our emulation gets more sophisticated, we need to know what CPU model
we're dealing with. Particularly for some of the nastier workarounds.
Let's start with Cortex A-15. We can then test the MIDR elsewhere in
On Thu, Mar 22, 2012 at 8:40 PM, Rusty Russell ru...@rustcorp.com.au wrote:
Current guests don't do this, and it's not clear what we should do if they
try to turn on ECC or set various RAM latencies. When someone does this,
we'll have a better idea of what we should do about it.
On Wed, May 16, 2012 at 7:58 PM, Rusty Russell ru...@rustcorp.com.au wrote:
On Mon, 14 May 2012 18:57:20 -0400, Christoffer Dall
c.d...@virtualopensystems.com wrote:
On Thu, Mar 22, 2012 at 8:41 PM, Rusty Russell rusty.russ...@linaro.org
wrote:
As our emulation gets more sophisticated, we
, ...) - vcpu_unimpl(vcpu, fmt, ...)
Applies to kvm-next
Changelog[2]:
- Added PID to print functions
- Renamed vcpu_pr_unimpl to vcpu_unimpl
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/x86/kvm/svm.c |6 +++--
arch/x86/kvm/vmx.c |2 +-
arch/x86/kvm/x86.c
I sent this out to the KVM/ARM mailing list, but figured KVM
developers may be interested as well.
Thanks,
Christoffer
-- Forwarded message --
From: Christoffer Dall cd...@cs.columbia.edu
Date: Thu, May 5, 2011 at 7:49 PM
Subject: Goal: Cortex-A15 support
To: android-virt
to
commenting, but will keep up with this for next release version.
Changes since v2:
- Performs world-switch code
- Maps guest memory using 2nd stage translation
- Emulates co-processor 15 instructions
- Forwards I/O faults to QEMU.
---
Christoffer Dall (8):
ARM: KVM: Initial skeleton
Targets KVM support for Cortex A-15 processors.
Contains no real functionality but all the framework components,
make files, header files and some tracing functionality.
---
arch/arm/Kconfig |2
arch/arm/Makefile |1
arch/arm/include/asm/kvm.h
Adds support in the identity mapping feature that allows KVM to setup
identity mapping for the Hyp mode with the AP[1] bit set as required by
the specification and also supports freeing created sub pmd's after
finished use.
---
arch/arm/include/asm/pgtable-3level-hwdef.h |1 +
Sets up the required registers to run code in HYP-mode from the kernel.
No major controversies, but we should consider how to deal with SMP
support for hypervisor stack page.
Works by setting the HVBAR the kernel can execute code in Hyp-mode with
the MMU disabled which initializes other registers
Initializes a blank level-1 translation table for the second stage
translation and handles freeing it as well.
---
arch/arm/include/asm/kvm_host.h |4 ++-
arch/arm/include/asm/kvm_mmu.h |5
arch/arm/kvm/arm.c | 54 ++-
3 files
Provides complete world-switch implementation to switch to other guests
runinng in non-secure modes. Includes Hyp exception handlers that
captures necessary exception information and stores the information on
the VCPU and KVM structures.
Only controversy may be the back-door call to __irq_svc
A few stub functions and support for emulating access to memory remap
registers PRRR and NMRR.
Provides some framework for handling trapped CP15 accesses in general.
---
arch/arm/include/asm/kvm_emulate.h |7 ++
arch/arm/kvm/arm.c | 73 +++-
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
pgprot_guest variables used to map 2nd stage memory for KVM guests.
---
arch/arm/include/asm/pgtable-3level.h |9 +++
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and forwarding reads
and writes to QEMU which performs the device emulation.
This requires changing the general flow
thanks, I will fix this for next version.
On Fri, Jun 3, 2011 at 5:53 PM, Jan Kiszka jan.kis...@siemens.com wrote:
On 2011-06-03 17:31, Jan Kiszka wrote:
On 2011-06-03 17:03, Christoffer Dall wrote:
Targets KVM support for Cortex A-15 processors.
Contains no real functionality but all
On Sun, Jun 5, 2011 at 4:00 PM, Avi Kivity a...@redhat.com wrote:
On 06/05/2011 03:52 PM, Avi Kivity wrote:
(series review - please have a cover letter in the future for this stuff)
Oh - you did - but in a separate thread. Oh well.
My internet router decided to reset immediately after
On Sun, Jun 5, 2011 at 2:41 PM, Avi Kivity a...@redhat.com wrote:
On 06/03/2011 06:03 PM, Christoffer Dall wrote:
Initializes a blank level-1 translation table for the second stage
translation and handles freeing it as well.
+ start = (unsigned long)kvm,
+ end = start + sizeof
On Sun, Jun 5, 2011 at 5:14 PM, Avi Kivity a...@redhat.com wrote:
On 06/05/2011 05:53 PM, Avi Kivity wrote:
On 06/05/2011 05:50 PM, Christoffer Dall wrote:
On Sun, Jun 5, 2011 at 2:41 PM, Avi Kivitya...@redhat.com wrote:
On 06/03/2011 06:03 PM, Christoffer Dall wrote:
Initializes
On Sun, Jun 5, 2011 at 2:36 PM, Avi Kivity a...@redhat.com wrote:
On 06/03/2011 06:03 PM, Christoffer Dall wrote:
Targets KVM support for Cortex A-15 processors.
Contains no real functionality but all the framework components,
make files, header files and some tracing functionality
On Sun, Jun 5, 2011 at 4:58 PM, Jan Kiszka jan.kis...@web.de wrote:
On 2011-06-05 16:18, Avi Kivity wrote:
On 06/05/2011 05:13 PM, Jan Kiszka wrote:
On 2011-06-05 14:21, Avi Kivity wrote:
On 06/03/2011 06:53 PM, Jan Kiszka wrote:
@@ -310,6 +310,7 @@ struct kvm_translation {
On Sun, Jun 5, 2011 at 5:14 PM, Jan Kiszka jan.kis...@web.de wrote:
On 2011-06-05 17:10, Avi Kivity wrote:
On 06/05/2011 05:58 PM, Jan Kiszka wrote:
Note that with KVM_SET_GSI_ROUTING (bad name for ARM...) we can even
choose if an irq line is connected to a kernel-emulated interrupt
On Sun, Jun 5, 2011 at 6:27 PM, Alexander Graf ag...@suse.de wrote:
On 05.06.2011, at 18:03, Christoffer Dall wrote:
On Sun, Jun 5, 2011 at 2:36 PM, Avi Kivity a...@redhat.com wrote:
On 06/03/2011 06:03 PM, Christoffer Dall wrote:
[...]
+if VIRTUALIZATION
+
+config KVM
On Fri, Jun 10, 2011 at 11:58 AM, Catalin Marinas
catalin.mari...@arm.com wrote:
On Fri, Jun 10, 2011 at 10:53:06AM +0100, Alexander Graf wrote:
Am 10.06.2011 um 11:23 schrieb Catalin Marinas catalin.mari...@arm.com:
On Fri, Jun 10, 2011 at 09:40:34AM +0100, Christoffer Dall wrote:
OK, so I
On Sun, Jun 5, 2011 at 2:48 PM, Avi Kivity a...@redhat.com wrote:
On 06/03/2011 06:04 PM, Christoffer Dall wrote:
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
+static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa
What are your thoughts about mmu notifier support?
For what purpose? There is no swapping on ARM, so only case that jumps
to my mind is for KSM. And I'm not quite there yet :)
Really? I imaging swapping will be needed for server workloads. mmu
notifiers are also useful for transparent
On Mon, Jan 7, 2013 at 1:14 PM, Will Deacon will.dea...@arm.com wrote:
- virtio mmio fixes to deal with guest page sizes != 4k (in
preparation for AArch64, which I will post separately).
- .dtb dumping via the lkvm command line
- Support for PSCI firmware as a
more CP15 accesses
- Support guest WFI calls
- Uses debugfs instead of /proc
- Support compiling in Thumb mode
Changes since v2:
- Performs world-switch code
- Maps guest memory using 2nd stage translation
- Emulates co-processor 15 instructions
- Forwards I/O faults to QEMU.
---
Christoffer
mappings
- page_s2_device: Stage-2 device mappings (vgic access)
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/pgtable-3level.h | 18 ++
arch/arm/include/asm/pgtable.h|7 +++
arch/arm/mm
will.dea...@arm.com
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/idmap.h|1 +
arch/arm/include/asm/pgtable-3level-hwdef.h |1 +
arch/arm
-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Rusty Russell rusty.russ...@linaro.org
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
Documentation/virtual/kvm/api.txt | 57 +-
arch/arm/Kconfig |2
...@redhat.com
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_asm.h |2
arch/arm/include/asm/kvm_host.h | 19 ++
arch/arm/include/asm/kvm_mmu.h |9 +
arch/arm/kvm/Kconfig|1
arch/arm
From: Christoffer Dall cd...@cs.columbia.edu
All interrupt injection is now based on the VM ioctl KVM_IRQ_LINE. This
works semantically well for the GIC as we in fact raise/lower a line on
a machine component (the gic). The IOCTL uses the follwing struct.
struct kvm_irq_level {
union
...@redhat.com
Signed-off-by: Rusty Russell rusty.russ...@linaro.org
Signed-off-by: Antonios Motakis a.mota...@virtualopensystems.com
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_arm.h | 51
arch/arm/include
University
+ * Authors: Christoffer Dall c.d...@virtualopensystems.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed
.
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Rusty Russell rusty.russ...@linaro.org
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
Documentation/virtual/kvm/api.txt |5 +
arch/arm/include/asm/kvm_coproc.h |9 +
arch/arm/include/asm/kvm_host.h |4
From: Rusty Russell rusty.russ...@linaro.org
We use space #18 for floating point regs.
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Rusty Russell ru...@rustcorp.com.au
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
Documentation/virtual/kvm/api.txt |6
Add an entry in the MAINTAINERS file for KVM/ARM.
Cc: Russell King li...@arm.linux.org.uk
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
MAINTAINERS |8
1 file changed, 8 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index fa309ab..8349bac 100644
the physical address, but now that's the wrong thing.
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Rusty Russell rusty.russ...@linaro.org
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm
enough to remind us of this massive pain.
Reviewed-by: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_asm.h |2 +
arch/arm/include/asm/kvm_mmu.h | 12 +++
arch
physical addresses
and instead provide the address through the KVM_SET_DEVICE_ADDRESS
ioctl.
- Fix level/edge bugs
- Fix reboot bug: retire queued, disabled interrupts
---
Christoffer Dall (2):
KVM: ARM: Introduce KVM_SET_DEVICE_ADDRESS ioctl
ARM: KVM: VGIC accept vcpu and dist
accesses within a certain address range or directly map a
device with virtualiation extensions into the guest address space.
We try to make this API slightly more generic than for our specific use,
but so far only the VGIC uses this feature.
Signed-off-by: Christoffer Dall c.d
-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_host.h | 10 ++
arch/arm/kvm/arm.c | 30 ++
2 files changed, 40 insertions(+)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index
From: Marc Zyngier marc.zyng...@arm.com
The GICH_* constants are defined by the GIC HW spec, and even though
they only be used by KVM to begin with, define them generically in gic.h.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
From: Marc Zyngier marc.zyng...@arm.com
Wire the basic framework code for VGIC support and the initial in-kernel
MMIO support code for the VGIC, used for the distributor emulation.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
From: Marc Zyngier marc.zyng...@arm.com
Add the GIC distributor emulation code. A number of the GIC features
are simply ignored as they are not required to boot a Linux guest.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch
From: Marc Zyngier marc.zyng...@arm.com
Add VGIC virtual CPU interface code, picking pending interrupts
from the distributor and stashing them in the VGIC control interface
list registers.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d
).
The solution is to examine already active LRs, and check the
interrupt is still enabled. If not, just retire it.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/kvm/vgic.c | 30 ++
1 file changed, 30
From: Marc Zyngier marc.zyng...@arm.com
Plug the interrupt injection code. Interrupts can now be generated
from user space.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/include/asm/kvm_vgic.h |8 +++
arch/arm/kvm
From: Marc Zyngier marc.zyng...@arm.com
Enable the VGIC control interface to be save-restored on world switch.
Signed-off-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Christoffer Dall c.d...@virtualopensystems.com
---
arch/arm/kernel/asm-offsets.c | 12 ++
arch/arm/kvm
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