> (copying some s390 people)
>
> On 07/10/2009 02:47 PM, Julia Lawall wrote:
> > In a recent version of linux-next, the function kvm_s390_handle_wait
> > contains the following code:
> >
> > add_wait_queue(&vcpu->arch.local_int.wq,&wait);
> > while (list_empty(&vcpu->arch.local_i
milar way.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c | 50 ++-
include/linux/kvm.h |7 ++
2 files changed, 56 insertions(+), 1 deletion(-)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -249,6 +2
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
arch/s3
Hi Avi, Hi Marcelo,
this patch series introduces an interface to allow a privileged userspace
program to control a KVM virtual machine. The interface is intended for
use by a machine simulator called CECSIM that can simulate an entire
mainframe machine with nested virtualization and I/O for the pu
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
machine must not have
any memory slots installed, and no virtual cpus defined.
Note that the user controlled virtual machines require CAP_SYS_ADMIN
privileges.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/Kconfig|9 +
arch/s390/kvm/kvm-s390.c | 30
.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
===
--- linux-2.5-cecsim.orig/arch/s390/include/asm/kvm_host.h
+++ linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
@@ -25,6 +25,9 @@
#define
e and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
===
--- linux-2.5-cecsim.orig/arch/s390/kvm/kvm-s390.c
+++ linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
@@ -
This patch announces a new capability KVM_CAP_S390_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions
This patch exports the SIE hardware control block to userspace
via the mapping of the vcpu file descriptor.
Signed-off-by: Carsten Otte
---
---
arch/s390/include/asm/kvm_host.h |2 ++
virt/kvm/kvm_main.c |5 +
2 files changed, 7 insertions(+)
--- a/arch/s390/include
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
Index: linux-2.5
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
===
--- linux-2.5-cecsim.orig/arch/s390/kvm/kvm-s390.c
On 01.12.2011 14:26, Avi Kivity wrote:
On 12/01/2011 02:57 PM, Carsten Otte wrote:
This patch exports the SIE hardware control block to userspace
via the mapping of the vcpu file descriptor.
else if (vmf->pgoff == KVM_COALESCED_MMIO_PAGE_OFFSET)
page = virt_to_page(v
On 01.12.2011 14:33, Avi Kivity wrote:
Okay, I read the code and I even think I understood a little bit of it.
In general the patches look okay, I had only minor comments. But please
do document all the new interfaces.
Since when do we have api documentation? Tssj, kvm has grown up since last I
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
Hi Avi, Hi Marcelo,
I think I've integrated all feedback from last round. The race
between KVM_S390_ENABLE_UCONTROL and creation of vcpus has been
resolved by adding a parameter to KVM_CREATE_VM. The default
KVM_VM_REGULAR (==0) is backward compatible to KVM_CREATE_VM
without parameters, and KVM_V
This patch announces a new capability KVM_CAP_S390_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38 ++
arch/s390/include/asm/kvm_host.h |4 +
arch/s390/include/asm/pgtable.h |1
arch/s390/kvm/kvm-s390.c | 103 --
arch/s390/mm/pgtable.c
e and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
are KVM_VM_REGULAR (defined to 0
for backward compatibility to old KVM_CREATE_VM) and
KVM_VM_S390_UCONTROL for s390 only.
Note that the user controlled virtual machines require CAP_SYS_ADMIN
privileges.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt |7 ++-
arch/ia64
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
Index: linux-2.5
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -884,7 +884,7
On 08.12.2011 10:25, Sasha Levin wrote:
Why is it s390 specific? why isn't it KVM_VM_UCONTROL which is currently
only implemented on s390?
Good point. Maybe the subject line for the patch should be fixed along
with that ;-)
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t
On 08.12.2011 11:18, Alexander Graf wrote:
If you really have to do this, please
1) make it s390 only. I don't even want to have to see this uglyness in other
archs
It pretty much is. The only interference is a) checking the machine
type in arch_init_vm now that I've introduced that paramete
Hi Avi, Hi Marcelo,
this round includes feedback from Sasha Levin:
KVM_VM_S390_UCONTROL renamed to KVM_VM_UCONTROL
KVM_CAP_S390_UCONTROL renamed to KVM_CAP_UCONTROL
and a bugfix for a possible host change bit underindication (race)
in SSKE that was reported by Joachim off-list.
@Heiko: since Mar
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
Index: linux-2.5
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
This patch announces a new capability KVM_CAP_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions(+)
--- a
are KVM_VM_REGULAR (defined to 0
for backward compatibility to old KVM_CREATE_VM) and
KVM_VM_UCONTROL for s390 only.
Note that the user controlled virtual machines require CAP_SYS_ADMIN
privileges.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt |7 ++-
arch/ia64/kvm
e and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38 +
arch/s390/include/asm/kvm_host.h |4 +
arch/s390/include/asm/pgtable.h |1
arch/s390/kvm/kvm-s390.c | 106 --
arch/s390/mm/pgtable.c
On 09.12.2011 12:32, Alexander Graf wrote:
+KVM_CAP_UCONTROL
KVM_S390_CAP_UCONTROL
I'm happy either way. It seemed to me that the discussion between Avi
and Sasha for V2 of the patch series on this naming has concluded to
KVM_CAP_UCONTROL/KVM_VM_UCONTROL without _S390 in it.
KVM_ENABLE_CAP(
On 09.12.2011 12:37, Alexander Graf wrote:
+#define KVM_S390_SIE_PAGE_OFFSET 1
Can we please make these a global number space? I don't want to have any user space code
"accidently" call this mmap while it's trying to find out if it can map the PIO
page. We already have a global number space f
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/include/asm/kvm_host.h
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
are KVM_VM_REGULAR (defined to 0
for backward compatibility to old KVM_CREATE_VM) and
KVM_VM_UCONTROL for s390 only.
Note that the user controlled virtual machines require CAP_SYS_ADMIN
privileges.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt |7 ++-
arch/ia64/kvm
.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38 +
arch/s390/include/asm/kvm_host.h |4 +
arch/s390/include/asm/pgtable.h |1
arch/s390/kvm/kvm-s390.c | 110 --
arch/s390/mm/pgtable.c
Hi Avi, Hi Marcelo,
this version includes review feedback from Heiko.
so long,
Carsten
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More majordomo info at http://vger.kernel.org/majordomo-info.html
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
This patch announces a new capability KVM_CAP_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions(+)
--- a
e and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
On 09.12.2011 13:52, Joachim von Buttlar wrote:
Shouldn't it be: page_set_storage_key(pte_val(*ptep), skey |
_PAGE_CHANGED, 1);
+/* avoid race clobbering
changed bit
*/
+pte_val(*ptep)
On 09.12.2011 17:06, Alexander Graf wrote:
Same as this. It's an s390 specific hack, so it should be identified as such.
Naming is fine either way with me. Sasha Levin and Avi seemed to prefer
not to have _S390 in it.
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the bod
On 09.12.2011 14:46, heica...@linux.vnet.ibm.com wrote:
On Fri, Dec 09, 2011 at 01:49:35PM +0100, Carsten Otte wrote:
This patch introduces an interface to access the guest visible
storage keys. It supports three operations that model the behavior
that SSKE/ISKE/RRBE instructions would have if
Hi Avi, Hi Marcelo,
this iteration of the patchset has two changes:
- Handling of null PTEs is fixed (thanks Heiko)
- Typo in comment is fixed (thanks Joachim)
so long,
Carsten
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To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
are KVM_VM_REGULAR (defined to 0
for backward compatibility to old KVM_CREATE_VM) and
KVM_VM_UCONTROL for s390 only.
Note that the user controlled virtual machines require CAP_SYS_ADMIN
privileges.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt |7 ++-
arch/ia64/kvm
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
---
arch/s390/include/asm/kvm_host.h |5 +++--
1 file changed, 3 insertions(+), 2
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c | 30 --
1
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -889,7 +889,7
This patch announces a new capability KVM_CAP_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions(+)
--- a
.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38 +
arch/s390/include/asm/kvm_host.h |4 +
arch/s390/include/asm/pgtable.h |1
arch/s390/kvm/kvm-s390.c | 108 --
arch/s390/mm/pgtable.c
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
e and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a
On 12.12.2011 10:13, Avi Kivity wrote:
Old kernels don't expose KVM_VM_REGULAR, so if people follow the
recommendations, their userspace won't build. Normal guests must be 0.
We can pretend we planned this all along by making the argument a flags
mask, and claiming bit 0 for UCONTROL.
That's a
On 12.12.2011 10:15, Avi Kivity wrote:
Please add links to the documentation of the SIE thingie.
The format of the SIE control block is documented here:
http://www.vm.ibm.com/pubs/cpdacb/SIEBK.HTML
The native behavior of SSKE, ISKE and RRBE is documented in the
Principles of Operation:
for Sy
On 12.12.2011 10:17, Avi Kivity wrote:
I've reconsidered and now want the s390 back. Sorry about that.
git-filter-branch can make the sedding painless.
So pain involved, I can operate sed "s/old/new/g" just fine ;-). Will
change it for the next version.
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On 12.12.2011 10:49, Avi Kivity wrote:
Do you have it in a tablet form factor?
Never trust a machine you can lift :-).
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Hi Avi, Hi Marcelo,
I've integrated all review feedback:
- locking is fixed on the storage key path
- symbols have been renamed all over the place:
CONFIG_KVM_UCONTROL => CONFIG_KVM_S390_UCONTROL
KVM_CAP_UCONTROL => KVM_CAP_S390_UCONTROL
KVM_VM_UCONTROL => KVM_VM_S390_UCONT
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm
This patch fixes the return code of kvm_arch_vcpu_ioctl in case
of an unkown ioctl number.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -885,7 +885,7
This patch fixes definition of the idle_mask and the local_int array
in kvm_s390_float_interrupt. Previous definition had 64 cpus max
hardcoded instead of using KVM_MAX_VCPUS.
Signed-off-by: Carsten Otte
---
---
arch/s390/include/asm/kvm_host.h |5 +++--
1 file changed, 3 insertions(+), 2
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
This patch makes sure user controlled virtual machines do not use a
system control area (sca). This is needed in order to create
virtual machines with more cpus than the size of the sca [64].
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c | 30 --
1
.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38 +
arch/s390/include/asm/kvm_host.h |4 +
arch/s390/include/asm/pgtable.h |1
arch/s390/kvm/kvm-s390.c | 110 --
arch/s390/mm/pgtable.c
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
This patch announces a new capability KVM_CAP_S390_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions
valid modifier bit for now is KVM_VM_S390_UCONTROL.
This requires CAP_SYS_ADMIN privileges and creates a user controlled
virtual machine on s390 architectures.
Signed-off-by: Carsten Otte
---
Documentation/virtual/kvm/api.txt |7 ++-
arch/ia64/kvm/kvm-ia64.c |5 -
arch
dress space and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
rface
From: Carsten Otte
This patch introduces an interface to access the guest visible
storage keys. It supports three operations that model the behavior
that SSKE/ISKE/RRBE instructions would have if they were issued by
the guest. These instructions are all documented in the z architecture
principl
This patch disables in-kernel handling of SIE intercepts for user
controlled virtual machines. All intercepts are passed to userspace
via KVM_EXIT_SIE exit reason just like SIE intercepts that cannot be
handled in-kernel for regular KVM guests.
Signed-off-by: Carsten Otte
---
Index: linux-2.5
This patch disables the in-kernel interrupt stack for KVM virtual
machines that are controlled by user. Userspace has to take care
of handling interrupts on its own.
Signed-off-by: Carsten Otte
---
Index: linux-2.5-cecsim/arch/s390/kvm/kvm-s390.c
dress space and then continue to run the
virtual cpu.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 14 ++
arch/s390/kvm/kvm-s390.c | 32 +++-
arch/s390/kvm/kvm-s390.h |1 +
include/linux/kvm.h |
he lowcore is not present. Normally
the kernel takes care of this [handle_validity() in
arch/s390/kvm/intercept.c] but since the kernel does not handle
intercepts for user controlled virtual machines, userspace needs to
be able to handle this condition.
Signed-off-by: Carsten Otte
---
---
Doc
This patch announces a new capability KVM_CAP_S390_UCONTROL that
indicates that kvm can now support virtual machines that are
controlled by userspace.
Signed-off-by: Carsten Otte
---
---
arch/s390/kvm/kvm-s390.c |3 +++
include/linux/kvm.h |1 +
2 files changed, 4 insertions
This patch exports the s390 SIE hardware control block to userspace
via the mapping of the vcpu file descriptor. In order to do so,
a new arch callback named kvm_arch_vcpu_fault is introduced for all
architectures. It allows to map architecture specific pages.
Signed-off-by: Carsten Otte
milar way.
Signed-off-by: Carsten Otte
---
---
Documentation/virtual/kvm/api.txt | 38
arch/s390/kvm/kvm-s390.c | 50 +-
include/linux/kvm.h | 10 +++
3 files changed, 97 insertions(+), 1 del
1 - 100 of 146 matches
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