Christoph Schlameuss 7816e58967 kvm: s390: Reject memory region operations for ucontrol VMs ... This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2. Signed-off-by: Christoph Schlameuss <schlameuss@linux.ibm.com> Fixes: 27e0393f15 ("KVM: s390: ucontrol: per vcpu address spaces") Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Link: https://lore.kernel.org/r/20240624095902.29375-1-schlameuss@linux.ibm.com Signed-off-by: Janosch Frank <frankja@linux.ibm.com> [frankja@linux.ibm.com: commit message spelling fix, subject prefix fix] Message-ID: <20240624095902.29375-1-schlameuss@linux.ibm.com>		2024-07-04 09:07:24 +02:00
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acrn	docs: acrn: Introduce ACRN	2021-02-09 10:58:18 +01:00
coco	Documentation: virt: Fix up pre-formatted text block for SEV ioctls	2024-02-02 17:21:22 +01:00
hyperv	Documentation: hyperv: Add overview of PCI pass-thru device support	2024-03-01 08:29:49 +00:00
kvm	kvm: s390: Reject memory region operations for ucontrol VMs	2024-07-04 09:07:24 +02:00
uml	Documentation: Fix typos	2023-08-18 11:29:03 -06:00
guest-halt-polling.rst	Documentation: virt: correct location of haltpoll module params	2023-06-16 08:17:21 -06:00
index.rst	Docs/subsystem-apis: Remove '[The ]Linux' prefixes from titles of listed documents	2023-01-24 15:27:08 -07:00
ne_overview.rst	nitro_enclaves: Update documentation for Arm64 support	2021-09-14 11:11:20 +02:00
paravirt_ops.rst	Documentation: virt: Clean up paravirt_ops doc	2023-06-19 12:09:54 +02:00