[PATCH 1/1] configs: qemu-riscv raise CONFIG_NR_DRAM_BANKS

Heinrich Schuchardt heinrich.schuchardt at canonical.com
Thu Apr 3 16:28:16 CEST 2025


The number of memory banks in QEMU is not bounded by 1.

In this example we have two banks:

    qemu-system-riscv64 \
    -machine virt \
    -nographic \
    -m 8192 \
    -smp 8,sockets=2,cores=4,threads=1 \
    -numa node,cpus=0-3,mem=4096 \
    -numa node,cpus=4-7,mem=4096 \
    -kernel u-boot

As we will see RISC-V NUMA systems using U-Boot
we should be able to emulate these.

Use the default value defined in /Kconfig as 4.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 configs/qemu-riscv32_defconfig       | 1 -
 configs/qemu-riscv32_smode_defconfig | 1 -
 configs/qemu-riscv32_spl_defconfig   | 1 -
 configs/qemu-riscv64_defconfig       | 1 -
 configs/qemu-riscv64_smode_defconfig | 1 -
 configs/qemu-riscv64_spl_defconfig   | 1 -
 6 files changed, 6 deletions(-)

diff --git a/configs/qemu-riscv32_defconfig b/configs/qemu-riscv32_defconfig
index 1cd80f5769e..e937f9439d7 100644
--- a/configs/qemu-riscv32_defconfig
+++ b/configs/qemu-riscv32_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/qemu-riscv32_smode_defconfig b/configs/qemu-riscv32_smode_defconfig
index 6f871c83644..a71b938acde 100644
--- a/configs/qemu-riscv32_smode_defconfig
+++ b/configs/qemu-riscv32_smode_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/qemu-riscv32_spl_defconfig b/configs/qemu-riscv32_spl_defconfig
index 9906f8b2dad..e014eda0777 100644
--- a/configs/qemu-riscv32_spl_defconfig
+++ b/configs/qemu-riscv32_spl_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/qemu-riscv64_defconfig b/configs/qemu-riscv64_defconfig
index cdd511b0e72..e90ec0ac27e 100644
--- a/configs/qemu-riscv64_defconfig
+++ b/configs/qemu-riscv64_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/qemu-riscv64_smode_defconfig b/configs/qemu-riscv64_smode_defconfig
index 2f62f17bc8c..24c92f6d5b4 100644
--- a/configs/qemu-riscv64_smode_defconfig
+++ b/configs/qemu-riscv64_smode_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
diff --git a/configs/qemu-riscv64_spl_defconfig b/configs/qemu-riscv64_spl_defconfig
index 27e092bd208..bfb4613b68d 100644
--- a/configs/qemu-riscv64_spl_defconfig
+++ b/configs/qemu-riscv64_spl_defconfig
@@ -1,6 +1,5 @@
 CONFIG_RISCV=y
 CONFIG_SYS_MALLOC_LEN=0x800000
-CONFIG_NR_DRAM_BANKS=1
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80200000
 CONFIG_ENV_SIZE=0x20000
-- 
2.48.1



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