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725ec89803
According to KVM uAPI, coalesced mmio page is KVM_COALESCED_MMIO_PAGE_OFFSET
offset from kvm_run pages. For x86 it's 2 pages offset, for arm it's 1 page
offset currently. We shouldn't presume it's hardcoded 1 page or else
coalesced_mmio_ring will not be cleared in do_kvm_destroy_vcpu() in x86.
Fixes: 7ed0919119 ("migration: close kvm after cpr")
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/qemu-devel/20250928085432.40107-6-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>