| Message ID | 20190520071514.9308-2-clg@kaod.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: PPC: Book3S HV: XIVE: assorted fixes on vCPU and RAM limits | expand |
diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c index 6a8e698c4b6e..796d86549cfe 100644 --- a/arch/powerpc/kvm/book3s_xive_native.c +++ b/arch/powerpc/kvm/book3s_xive_native.c @@ -979,6 +979,14 @@ static void kvmppc_xive_native_release(struct kvm_device *dev) pr_devel("Releasing xive native device\n"); + /* + * Clear the KVM device file address_space which is used to + * unmap the ESB pages when a device is passed-through. + */ + mutex_lock(&xive->mapping_lock); + xive->mapping = NULL; + mutex_unlock(&xive->mapping_lock); + /* * Clearing mmu_ready temporarily while holding kvm->lock * is a way of ensuring that no vcpus can enter the guest
Improve the release of the XIVE KVM device by clearing the file address_space which is used to unmap the interrupt ESB pages when a device is passed-through. Suggested-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Cédric Le Goater <clg@kaod.org> --- arch/powerpc/kvm/book3s_xive_native.c | 8 ++++++++ 1 file changed, 8 insertions(+)