On Tue, Oct 22, 2024 at 02:05:50PM +0200, Claudio Imbrenda wrote:
> This patchseries moves the handling of host program interrupts that
> happen while a KVM guest is running into KVM itself.
>
> All program interrupts that happen in the host while a KVM guest is
> running are due to DAT exceptions. It is cleaner and more maintainable
> to have KVM handle those.
>
> As a side effect, some more cleanups is also possible.
>
> Moreover, this series serves as a foundation for an upcoming series
> that will further move as much s390 KVM memory managament as possible
> into KVM itself, and away from the rest of the kernel.
...
> Claudio Imbrenda (8):
> s390/entry: Remove __GMAP_ASCE and use _PIF_GUEST_FAULT again
> s390/kvm: Remove kvm_arch_fault_in_page()
> s390/mm/gmap: Refactor gmap_fault() and add support for pfault
> s390/mm/gmap: Fix __gmap_fault() return code
> s390/mm/fault: Handle guest-related program interrupts in KVM
> s390/kvm: Stop using gmap_{en,dis}able()
> s390/mm/gmap: Remove gmap_{en,dis}able()
> s390: Remove gmap pointer from lowcore
>
> Heiko Carstens (3):
> s390/mm: Simplify get_fault_type()
> s390/mm: Get rid of fault type switch statements
> s390/mm: Convert to LOCK_MM_AND_FIND_VMA
>
> arch/s390/Kconfig | 1 +
> arch/s390/include/asm/gmap.h | 3 -
> arch/s390/include/asm/kvm_host.h | 5 +-
> arch/s390/include/asm/lowcore.h | 3 +-
> arch/s390/include/asm/processor.h | 5 +-
> arch/s390/include/asm/ptrace.h | 2 +
> arch/s390/kernel/asm-offsets.c | 3 -
> arch/s390/kernel/entry.S | 44 ++-----
> arch/s390/kernel/traps.c | 23 +++-
> arch/s390/kvm/intercept.c | 4 +-
> arch/s390/kvm/kvm-s390.c | 142 +++++++++++++++-------
> arch/s390/kvm/kvm-s390.h | 8 +-
> arch/s390/kvm/vsie.c | 17 ++-
> arch/s390/mm/fault.c | 195 +++++-------------------------
> arch/s390/mm/gmap.c | 151 +++++++++++++++--------
> 15 files changed, 281 insertions(+), 325 deletions(-)
Series applied, thanks!
