[RFC v1 2/3] hw: nvme: ctrl: Initial support for DOE

[Alistair Francis]

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 hw/nvme/nvme.h            |  4 ++++
 include/hw/pci/pcie_doe.h |  1 +
 hw/nvme/ctrl.c            | 20 ++++++++++++++++++++
 3 files changed, 25 insertions(+)

diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
index 209e8f5b4c..e0918516e3 100644
--- a/hw/nvme/nvme.h
+++ b/hw/nvme/nvme.h
@@ -20,6 +20,7 @@
 
 #include "qemu/uuid.h"
 #include "hw/pci/pci_device.h"
+#include "hw/pci/pcie_doe.h"
 #include "hw/block/block.h"
 
 #include "block/nvme.h"
@@ -597,6 +598,9 @@ typedef struct NvmeCtrl {
         uint16_t    vqrfap;
         uint16_t    virfap;
     } next_pri_ctrl_cap;    /* These override pri_ctrl_cap after reset */
+
+    /* DOE */
+    DOECap doe_spdm;
 } NvmeCtrl;
 
 typedef enum NvmeResetType {
diff --git a/include/hw/pci/pcie_doe.h b/include/hw/pci/pcie_doe.h
index 87dc17dcef..18e9492977 100644
--- a/include/hw/pci/pcie_doe.h
+++ b/include/hw/pci/pcie_doe.h
@@ -46,6 +46,7 @@ REG32(PCI_DOE_CAP_STATUS, 0)
 
 /* PCI-SIG defined Data Object Types - r6.0 Table 6-32 */
 #define PCI_SIG_DOE_DISCOVERY       0x00
+#define PCI_SIG_DOE_SPDM            0x01
 
 #define PCI_DOE_DW_SIZE_MAX         (1 << 18)
 #define PCI_DOE_PROTOCOL_NUM_MAX    256
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index f2e5a2fa73..ec3d5d3c29 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -202,6 +202,7 @@
 #include "sysemu/block-backend.h"
 #include "sysemu/hostmem.h"
 #include "hw/pci/msix.h"
+#include "hw/pci/pcie_doe.h"
 #include "hw/pci/pcie_sriov.h"
 #include "migration/vmstate.h"
 
@@ -8088,6 +8089,13 @@ static int nvme_add_pm_capability(PCIDevice *pci_dev, 
uint8_t offset)
     return 0;
 }
 
+#ifdef CONFIG_LIBSPDM
+static bool nvme_doe_spdm_rsp(DOECap *doe_cap)
+{
+    return false;
+}
+#endif
+
 static bool nvme_init_pci(NvmeCtrl *n, PCIDevice *pci_dev, Error **errp)
 {
     ERRP_GUARD();
@@ -8317,6 +8325,13 @@ void nvme_attach_ns(NvmeCtrl *n, NvmeNamespace *ns)
                             BDRV_REQUEST_MAX_BYTES / nvme_l2b(ns, 1));
 }
 
+#ifdef CONFIG_LIBSPDM
+static DOEProtocol doe_spdm_prot[] = {
+    { PCI_VENDOR_ID_PCI_SIG, PCI_SIG_DOE_SPDM, nvme_doe_spdm_rsp },
+    { }
+};
+#endif
+
 static void nvme_realize(PCIDevice *pci_dev, Error **errp)
 {
     NvmeCtrl *n = NVME(pci_dev);
@@ -8359,6 +8374,11 @@ static void nvme_realize(PCIDevice *pci_dev, Error 
**errp)
 
         nvme_attach_ns(n, ns);
     }
+
+#ifdef CONFIG_LIBSPDM
+    /* DOE Initailization */
+    pcie_doe_init(pci_dev, &n->doe_spdm, 0x190, doe_spdm_prot, true, 0);
+#endif
 }
 
 static void nvme_exit(PCIDevice *pci_dev)
-- 
2.41.0