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hw/nvme: fix namespace attachment

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Commit 6ccca4b6bb ("hw/nvme: rework csi handling") introduced a bug in
Namespace Attachment, causing it to

  a) not allow a controller to attach namespaces to other controllers
  b) assert if a valid non-attached namespace is detached

This fixes both issues.

Fixes: 6ccca4b6bb ("hw/nvme: rework csi handling")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2976
Reviewed-by: Jesper Wendel Devantier <foss@defmacro.it>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen
2025-08-11 00:17:38 -07:00
parent a74434580e
commit 31b737b19d
1 changed files with 6 additions and 2 deletions
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hw/nvme/ctrl.c
+6 -2
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@@ -6816,7 +6816,7 @@ static uint16_t nvme_ns_attachment(NvmeCtrl *n, NvmeRequest *req)
switch (sel) {
case NVME_NS_ATTACHMENT_ATTACH:
if (nvme_ns(n, nsid)) {
if (nvme_ns(ctrl, nsid)) {
return NVME_NS_ALREADY_ATTACHED | NVME_DNR;
}
@@ -6824,7 +6824,7 @@ static uint16_t nvme_ns_attachment(NvmeCtrl *n, NvmeRequest *req)
return NVME_NS_PRIVATE | NVME_DNR;
}
if (!nvme_csi_supported(n, ns->csi)) {
if (!nvme_csi_supported(ctrl, ns->csi)) {
return NVME_IOCS_NOT_SUPPORTED | NVME_DNR;
}
@@ -6834,6 +6834,10 @@ static uint16_t nvme_ns_attachment(NvmeCtrl *n, NvmeRequest *req)
break;
case NVME_NS_ATTACHMENT_DETACH:
if (!nvme_ns(ctrl, nsid)) {
return NVME_NS_NOT_ATTACHED | NVME_DNR;
}
nvme_detach_ns(ctrl, ns);
nvme_update_dsm_limits(ctrl, NULL);