1 files changed, 23 insertions, 0 deletions

diff --git a/gitlab/issues/target_arm/host_missing/accel_HVF/2665.toml b/gitlab/issues/target_arm/host_missing/accel_HVF/2665.toml
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index 00000000..f640b751
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+++ b/gitlab/issues/target_arm/host_missing/accel_HVF/2665.toml
@@ -0,0 +1,23 @@
+id = 2665
+title = "target/arm: cannot boot when CPU supports SME"
+state = "closed"
+created_at = "2024-11-11T05:18:05.252Z"
+closed_at = "2025-03-03T12:11:47.718Z"
+labels = ["accel: HVF", "hostos: macOS", "target: arm"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/2665"
+host-os = "macOS"
+host-arch = "ARM64 (Apple M4)"
+qemu-version = "main branch"
+guest-os = "any"
+guest-arch = "ARM64"
+description = """On macOS 15.2 beta, Apple's Hypervisor.framework exposes the SME feat flag to QEMU. As a result, in `arm_cpu_sme_finalize`, `cpu_isar_feature(aa64_sme, cpu)` returns true and the program will always exit with the following:
+
+```
+qemu-aarch64-softmmu: cannot disable sme4224
+All SME vector lengths are disabled.
+With SME enabled, at least one vector length must be enabled.
+```
+
+This is because `vq_supported` and `vq_init` are both 0 as they are not initialized anywhere. It seems that in the original commit e74c097638d38b46d9c68f11565432034afc0ad0 the only place `cpu->sme_vq.supported` is initialized is with `aarch64_max_initfn` when KVM and HVF are not used as the backend."""
+reproduce = "n/a"
+additional = "n/a"