I believe this feature was removed in Qemu-10
32-bit hosts for 64-bit guests (removed in 10.0) In general, 32-bit hosts cannot support the memory space or atomicity requirements of 64-bit guests. Prior to 10.0, QEMU attempted to work around the atomicity issues in system mode by running all vCPUs in a single thread context; in user mode atomicity was simply broken. From 10.0, QEMU has disabled configuration of 64-bit guests on 32-bit hosts. https://qemu-project.gitlab.io/qemu/about/removed-features.html#bit-hosts-for-64-bit-guests-removed-in-10-0 -- Efraim Flashner <[email protected]> אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted
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