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[PATCH 01/10] hw/mem/nvdimm: Use Kconfig 'imply' instead of 'depends on'


From: Philippe Mathieu-Daudé
Subject: [PATCH 01/10] hw/mem/nvdimm: Use Kconfig 'imply' instead of 'depends on'
Date: Thu, 13 May 2021 18:38:49 +0200

Per the kconfig.rst:

  A device should be listed [...] ``imply`` if (depending on
  the QEMU command line) the board may or  may not be started
  without it.

This is the case with the NVDIMM device (it is certainly possible
to start a machine without NVDIMM) , so use the 'imply' weak
reverse dependency to select the symbol.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 default-configs/devices/ppc64-softmmu.mak | 1 -
 hw/arm/Kconfig                            | 1 +
 hw/i386/Kconfig                           | 1 +
 hw/mem/Kconfig                            | 2 --
 hw/ppc/Kconfig                            | 1 +
 5 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/default-configs/devices/ppc64-softmmu.mak 
b/default-configs/devices/ppc64-softmmu.mak
index ae0841fa3a1..cca52665d90 100644
--- a/default-configs/devices/ppc64-softmmu.mak
+++ b/default-configs/devices/ppc64-softmmu.mak
@@ -8,4 +8,3 @@ CONFIG_POWERNV=y
 
 # For pSeries
 CONFIG_PSERIES=y
-CONFIG_NVDIMM=y
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index b887f6a5b17..67723d9ea6a 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -6,6 +6,7 @@ config ARM_VIRT
     imply VFIO_PLATFORM
     imply VFIO_XGMAC
     imply TPM_TIS_SYSBUS
+    imply NVDIMM
     select ARM_GIC
     select ACPI
     select ARM_SMMUV3
diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig
index 7f91f30877f..66838fa397b 100644
--- a/hw/i386/Kconfig
+++ b/hw/i386/Kconfig
@@ -23,6 +23,7 @@ config PC
     imply TPM_TIS_ISA
     imply VGA_PCI
     imply VIRTIO_VGA
+    imply NVDIMM
     select FDC
     select I8259
     select I8254
diff --git a/hw/mem/Kconfig b/hw/mem/Kconfig
index a0ef2cf648e..8b19fdc49f1 100644
--- a/hw/mem/Kconfig
+++ b/hw/mem/Kconfig
@@ -7,6 +7,4 @@ config MEM_DEVICE
 
 config NVDIMM
     bool
-    default y
-    depends on (PC || PSERIES || ARM_VIRT)
     select MEM_DEVICE
diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index e51e0e5e5ac..66e0b15d9ef 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -3,6 +3,7 @@ config PSERIES
     imply PCI_DEVICES
     imply TEST_DEVICES
     imply VIRTIO_VGA
+    imply NVDIMM
     select DIMM
     select PCI
     select SPAPR_VSCSI
-- 
2.26.3




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