[PATCH 0/3] KVM: x86: Add KVM_X86_SET_MSR_FILTE compat handler

From: Alexander Graf
Date: Mon Oct 17 2022 - 14:46:16 EST


In commit 1a155254ff937 ("KVM: x86: Introduce MSR filtering") we
introduced a new ioctl to handle MSR filtering. However, this ioctl
passes a pointer to kernel space in an ioctl struct - which breaks in
32-on-64 bit compat situations.

This patch set introduces a compat mechanism for architecutre spacific
VM ioctls and implements an MSR_FILTER wrapper in it.

Alexander Graf (3):
kvm: Add support for arch compat vm ioctls
KVM: x86: Make filter arg for set_msr_filter()
KVM: x86: Add compat handler for KVM_X86_SET_MSR_FILTER

arch/x86/kvm/x86.c | 87 +++++++++++++++++++++++++++++++++-------
include/linux/kvm_host.h | 2 +
virt/kvm/kvm_main.c | 11 +++++
3 files changed, 86 insertions(+), 14 deletions(-)

--
2.37.1




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