[PATCH v9 00/15] KVM: xen: update shared_info and vcpu_info handling

From: Paul Durrant
Date: Wed Nov 22 2023 - 07:20:23 EST


From: Paul Durrant <pdurrant@xxxxxxxxxx>

This is a minimal update to version 8 of the series [1]. The only material
change is in "pfncache: allow a cache to be activated with a fixed
(userspace) HVA".

[1] https://lore.kernel.org/kvm/20231121180223.12484-1-paul@xxxxxxx/

Paul Durrant (15):
KVM: pfncache: Add a map helper function
KVM: pfncache: remove unnecessary exports
KVM: xen: mark guest pages dirty with the pfncache lock held
KVM: pfncache: add a mark-dirty helper
KVM: pfncache: remove KVM_GUEST_USES_PFN usage
KVM: pfncache: stop open-coding offset_in_page()
KVM: pfncache: include page offset in uhva and use it consistently
KVM: pfncache: allow a cache to be activated with a fixed (userspace)
HVA
KVM: xen: allow shared_info to be mapped by fixed HVA
KVM: xen: allow vcpu_info to be mapped by fixed HVA
KVM: selftests / xen: map shared_info using HVA rather than GFN
KVM: selftests / xen: re-map vcpu_info using HVA rather than GPA
KVM: xen: advertize the KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA capability
KVM: xen: split up kvm_xen_set_evtchn_fast()
KVM: xen: allow vcpu_info content to be 'safely' copied

Documentation/virt/kvm/api.rst | 53 +++-
arch/x86/kvm/x86.c | 7 +-
arch/x86/kvm/xen.c | 260 +++++++++++-------
include/linux/kvm_host.h | 38 ++-
include/linux/kvm_types.h | 8 -
include/uapi/linux/kvm.h | 9 +-
.../selftests/kvm/x86_64/xen_shinfo_test.c | 59 +++-
virt/kvm/pfncache.c | 169 ++++++------
8 files changed, 370 insertions(+), 233 deletions(-)


base-commit: 45b890f7689eb0aba454fc5831d2d79763781677
--
2.39.2