[PATCH 17/17] hw/block/nvme: change controller pci id

[Klaus Jensen <its@irrelevant.dk>]

From: Klaus Jensen <k.jensen@samsung.com>

There are two reasons for changing this:

  1. The nvme device currently uses an internal Intel device id.

  2. Since commits "nvme: fix write zeroes offset and count" and "nvme:
     support multiple namespaces" the controller device no longer has
     the quirks that the Linux kernel think it has.

     As the quirks are applied based on pci vendor and device id, change
     them to get rid of the quirks.

To keep backward compatibility, add a new 'x-use-intel-id' parameter to
the nvme device to force use of the Intel vendor and device id. This is
off by default but add a compat property to set this for 5.1 machines
and older.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 hw/block/nvme.c   | 12 ++++++++++--
 hw/block/nvme.h   |  1 +
 hw/core/machine.c |  1 +
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 453d3a89d475..8018f8679366 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -2749,6 +2749,15 @@ static void nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev, Error **errp)
 
     pci_conf[PCI_INTERRUPT_PIN] = 1;
     pci_config_set_prog_interface(pci_conf, 0x2);
+
+    if (n->params.use_intel_id) {
+        pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
+        pci_config_set_device_id(pci_conf, 0x5846);
+    } else {
+        pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_REDHAT);
+        pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_REDHAT_NVME);
+    }
+
     pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_EXPRESS);
     pcie_endpoint_cap_init(pci_dev, 0x80);
 
@@ -2903,6 +2912,7 @@ static Property nvme_props[] = {
     DEFINE_PROP_UINT8("aerl", NvmeCtrl, params.aerl, 3),
     DEFINE_PROP_UINT32("aer_max_queued", NvmeCtrl, params.aer_max_queued, 64),
     DEFINE_PROP_UINT8("mdts", NvmeCtrl, params.mdts, 7),
+    DEFINE_PROP_BOOL("x-use-intel-id", NvmeCtrl, params.use_intel_id, false),
     DEFINE_PROP_END_OF_LIST(),
 };
 
@@ -2919,8 +2929,6 @@ static void nvme_class_init(ObjectClass *oc, void *data)
     pc->realize = nvme_realize;
     pc->exit = nvme_exit;
     pc->class_id = PCI_CLASS_STORAGE_EXPRESS;
-    pc->vendor_id = PCI_VENDOR_ID_INTEL;
-    pc->device_id = 0x5845;
     pc->revision = 2;
 
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
diff --git a/hw/block/nvme.h b/hw/block/nvme.h
index 72260f2e8ea9..a734a5e1370d 100644
--- a/hw/block/nvme.h
+++ b/hw/block/nvme.h
@@ -15,6 +15,7 @@ typedef struct NvmeParams {
     uint8_t  aerl;
     uint32_t aer_max_queued;
     uint8_t  mdts;
+    bool     use_intel_id;
 } NvmeParams;
 
 typedef struct NvmeAsyncEvent {
diff --git a/hw/core/machine.c b/hw/core/machine.c
index ea26d612374d..67990232528c 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -34,6 +34,7 @@ GlobalProperty hw_compat_5_1[] = {
     { "vhost-user-scsi", "num_queues", "1"},
     { "virtio-blk-device", "num-queues", "1"},
     { "virtio-scsi-device", "num_queues", "1"},
+    { "nvme", "x-use-intel-id", "on"},
 };
 const size_t hw_compat_5_1_len = G_N_ELEMENTS(hw_compat_5_1);
 
-- 
2.28.0