search for: pgste

...l on s390, if the calling process has multiple +threads and has not called KVM_S390_ENABLE_SIE before. + +In addition, on s390 the following architecture specific ioctls are supported: +ioctl: KVM_S390_ENABLE_SIE +args: none +see also: include/linux/kvm.h +This call causes the kernel to switch on PGSTE in the user page table. This +operation is needed in order to run a virtual machine, and it requires the +calling process to be single-threaded. Note that the first call to KVM_CREATE_VM +will implicitly try to switch on PGSTE if the user process has not called +KVM_S390_ENABLE_SIE before. User pro...

...l on s390, if the calling process has multiple +threads and has not called KVM_S390_ENABLE_SIE before. + +In addition, on s390 the following architecture specific ioctls are supported: +ioctl: KVM_S390_ENABLE_SIE +args: none +see also: include/linux/kvm.h +This call causes the kernel to switch on PGSTE in the user page table. This +operation is needed in order to run a virtual machine, and it requires the +calling process to be single-threaded. Note that the first call to KVM_CREATE_VM +will implicitly try to switch on PGSTE if the user process has not called +KVM_S390_ENABLE_SIE before. User pro...

...cess to reserve space in the page table: s390_enable_sie makes sure that the process is single threaded and then uses dup_mm to create a new mm with reorganized page tables. The old mm is freed and the process has now a page status extended field after every page table. Code that wants to exploit pgstes should SELECT CONFIG_PGSTE. This patch has a small common code hit, namely making dup_mm non-static. Signed-off-by: Martin Schwidefsky <schwidefsky at de.ibm.com> Signed-off-by: Carsten Otte <cotte at de.ibm.com> --- arch/s390/Kconfig | 4 ++ arch/s390/kernel/setup...

...z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git master as of 2008-03-20 hash g914bd66: [RFC/PATCH 01/15] preparation: provide hook to enable pgstes in user pagetable [RFC/PATCH 02/15] preparation: host memory management changes for s390 kvm [RFC/PATCH 03/15] preparation: address of the 64bit extint parm in lowcore [RFC/PATCH 04/15] preparation: spl...

...z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git master as of 2008-03-20 hash g914bd66: [RFC/PATCH 01/15] preparation: provide hook to enable pgstes in user pagetable [RFC/PATCH 02/15] preparation: host memory management changes for s390 kvm [RFC/PATCH 03/15] preparation: address of the 64bit extint parm in lowcore [RFC/PATCH 04/15] preparation: spl...

From: Heiko Carstens <heiko.carstens at de.ibm.com> From: Christian Borntraeger <borntraeger at de.ibm.com> This patch changes the s390 memory management defintions to use the pgste field for dirty and reference bit tracking of host and guest code. Usually on s390, dirty and referenced are tracked in storage keys, which belong to the physical page. This changes with virtualization: The guest and host dirty/reference bits are defined to be the logical OR of the values for the...