Merge tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- A pair of defconfig additions, for NVMe and the EFI filesystem
localization options.
- A larger address space for stack randomization.
- A cleanup to our install rules.
- A DTS update for the Microchip Icicle board, to fix the serial
console.
- Support for build-time table sorting, which allows us to have
__ex_table read-only.
* tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Move EXCEPTION_TABLE to RO_DATA segment
riscv: Enable BUILDTIME_TABLE_SORT
riscv: dts: microchip: mpfs-icicle: Fix serial console
riscv: move the (z)install rules to arch/riscv/Makefile
riscv: Improve stack randomisation on RV64
riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1
riscv: defconfig: enable BLK_DEV_NVME
diff --git a/Documentation/features/vm/ELF-ASLR/arch-support.txt b/Documentation/features/vm/ELF-ASLR/arch-support.txt
index 99cb6d7..2949c99 100644
--- a/Documentation/features/vm/ELF-ASLR/arch-support.txt
+++ b/Documentation/features/vm/ELF-ASLR/arch-support.txt
@@ -22,7 +22,7 @@
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
- | riscv: | TODO |
+ | riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c799556..c3f3fd5 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -41,6 +41,7 @@
select ARCH_WANT_FRAME_POINTERS
select ARCH_WANT_HUGE_PMD_SHARE if 64BIT
select BINFMT_FLAT_NO_DATA_START_OFFSET if !MMU
+ select BUILDTIME_TABLE_SORT if MMU
select CLONE_BACKWARDS
select CLINT_TIMER if !MMU
select COMMON_CLK
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 01906a9..0eb4568 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -132,8 +132,11 @@
Image.%: Image
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-zinstall install:
- $(Q)$(MAKE) $(build)=$(boot) $@
+install: install-image = Image
+zinstall: install-image = Image.gz
+install zinstall:
+ $(CONFIG_SHELL) $(srctree)/$(boot)/install.sh $(KERNELRELEASE) \
+ $(boot)/$(install-image) System.map "$(INSTALL_PATH)"
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile
index 6bf299f..becd062 100644
--- a/arch/riscv/boot/Makefile
+++ b/arch/riscv/boot/Makefile
@@ -58,11 +58,3 @@
$(obj)/loader.bin: $(obj)/loader FORCE
$(call if_changed,objcopy)
-
-install:
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
- $(obj)/Image System.map "$(INSTALL_PATH)"
-
-zinstall:
- $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \
- $(obj)/Image.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
index baea7d2..b254c60 100644
--- a/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
+++ b/arch/riscv/boot/dts/microchip/microchip-mpfs-icicle-kit.dts
@@ -16,10 +16,14 @@
aliases {
ethernet0 = &emac1;
+ serial0 = &serial0;
+ serial1 = &serial1;
+ serial2 = &serial2;
+ serial3 = &serial3;
};
chosen {
- stdout-path = &serial0;
+ stdout-path = "serial0:115200n8";
};
cpus {
diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
index bc68231..4ebc803 100644
--- a/arch/riscv/configs/defconfig
+++ b/arch/riscv/configs/defconfig
@@ -39,10 +39,12 @@
CONFIG_PCIEPORTBUS=y
CONFIG_PCI_HOST_GENERIC=y
CONFIG_PCIE_XILINX=y
+CONFIG_PCIE_FU740=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_VIRTIO_BLK=y
+CONFIG_BLK_DEV_NVME=m
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_VIRTIO=y
@@ -108,6 +110,8 @@
CONFIG_NFS_V4_2=y
CONFIG_ROOT_NFS=y
CONFIG_9P_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=m
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_DEV_VIRTIO=y
CONFIG_PRINTK_TIME=y
diff --git a/arch/riscv/include/asm/elf.h b/arch/riscv/include/asm/elf.h
index f4b490c..f53c400 100644
--- a/arch/riscv/include/asm/elf.h
+++ b/arch/riscv/include/asm/elf.h
@@ -42,6 +42,9 @@
*/
#define ELF_ET_DYN_BASE ((TASK_SIZE / 3) * 2)
+#ifdef CONFIG_64BIT
+#define STACK_RND_MASK (0x3ffff >> (PAGE_SHIFT - 12))
+#endif
/*
* This yields a mask that user programs can use to figure out what
* instruction set this CPU supports. This could be done in user space,
diff --git a/arch/riscv/kernel/vmlinux-xip.lds.S b/arch/riscv/kernel/vmlinux-xip.lds.S
index af776555..9c9f350 100644
--- a/arch/riscv/kernel/vmlinux-xip.lds.S
+++ b/arch/riscv/kernel/vmlinux-xip.lds.S
@@ -121,7 +121,6 @@
}
BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
- EXCEPTION_TABLE(0x10)
.rel.dyn : AT(ADDR(.rel.dyn) - LOAD_OFFSET) {
*(.rel.dyn*)
diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
index 502d082..5104f3a 100644
--- a/arch/riscv/kernel/vmlinux.lds.S
+++ b/arch/riscv/kernel/vmlinux.lds.S
@@ -4,6 +4,8 @@
* Copyright (C) 2017 SiFive
*/
+#define RO_EXCEPTION_TABLE_ALIGN 16
+
#ifdef CONFIG_XIP_KERNEL
#include "vmlinux-xip.lds.S"
#else
@@ -112,8 +114,6 @@
*(.srodata*)
}
- EXCEPTION_TABLE(0x10)
-
. = ALIGN(SECTION_ALIGN);
_data = .;
diff --git a/scripts/sorttable.c b/scripts/sorttable.c
index 0ef3abf..f355869 100644
--- a/scripts/sorttable.c
+++ b/scripts/sorttable.c
@@ -349,6 +349,7 @@
case EM_ARM:
case EM_MICROBLAZE:
case EM_MIPS:
+ case EM_RISCV:
case EM_XTENSA:
break;
default:
