Mark Johnston 31218f3209 riscv: Add support for enabling SV48 mode ... This increases the size of the user map from 256GB to 128TB. The kernel map is left unchanged for now. For now SV48 mode is left disabled by default, but can be enabled with a tunable. Note that extant hardware does not implement SV48, but QEMU does. - In pmap_bootstrap(), allocate a L0 page and attempt to enable SV48 mode. If the write to SATP doesn't take, the kernel continues to run in SV39 mode. - Define VM_MAX_USER_ADDRESS to refer to the SV48 limit. In SV39 mode, the region [VM_MAX_USER_ADDRESS_SV39, VM_MAX_USER_ADDRESS_SV48] is not mappable. Reviewed by: jhb MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34280		2022-03-01 09:39:44 -05:00
..
_align.h
_bus.h	Regularize my copyright notice	2019-12-04 16:56:11 +00:00
_inttypes.h
_limits.h
_stdint.h
_types.h	Reduce code duplication in machine/_types.h	2021-06-14 16:30:16 +01:00
asm.h	Add .cfi_{start,end}proc for RISC-V assembly functions	2020-11-26 17:37:22 +00:00
atomic.h	riscv: fix errors in some atomic type aliases	2021-03-04 16:59:58 -04:00
bus_dma_impl.h	bus_dma: Deduplicate locking helper functions.	2022-01-05 13:50:40 -08:00
bus_dma.h
bus.h	Add missing assignment forgotten in r365899	2020-09-20 15:11:52 +00:00
clock.h
counter.h	riscv: small counter(9) improvements	2020-12-11 20:01:45 +00:00
cpu.h	Simplify swi for bus_dma.	2021-12-28 13:51:25 -08:00
cpufunc.h	riscv: Use generic CSR macros for writing SATP	2022-03-01 09:39:43 -05:00
db_machdep.h	riscv: improve exception code naming	2020-10-24 20:57:13 +00:00
dump.h	minidump: De-duplicate the progress bar	2021-09-29 16:42:21 -03:00
efi.h
elf.h
encoding.h
endian.h	Consolidate machine/endian.h definitions	2021-03-26 19:00:22 -03:00
exec.h
float.h
floatingpoint.h
fpe.h
frame.h
gdb_machdep.h	riscv: gdb(4) support	2022-01-10 13:40:12 -04:00
ieeefp.h	libc: Provide sub fp(s|g)etmask() implementations for RISC-V	2020-08-03 12:48:51 +00:00
in_cksum.h
intr.h
kdb.h	Introduce kdb-level watchpoint functions	2021-03-29 12:05:43 -03:00
machdep.h	Handle load from loader(8)	2020-06-24 15:20:00 +00:00
md_var.h	Simplify swi for bus_dma.	2021-12-28 13:51:25 -08:00
memdev.h	riscv: Add memmmap so we can mmap /dev/mem	2020-10-01 15:04:55 +00:00
metadata.h	RISC-V boot1.efi and loader.efi support	2020-07-06 18:19:42 +00:00
minidump.h	Sparsify the vm_page_dump bitmap	2020-09-21 22:21:59 +00:00
ofw_machdep.h
param.h	riscv: Define __PCI_REROUTE_INTERRUPT	2020-09-30 02:21:38 +00:00
pcb.h	Remove unused fields from struct pcb.	2020-01-30 19:15:27 +00:00
pcpu_aux.h	Correct padding length for RISC-V PCPU data.	2020-08-12 18:45:36 +00:00
pcpu.h	Remove PCPU_INC	2021-03-20 19:23:59 -07:00
pmap.h	riscv: Add various pmap definitions needed to support SV48 mode	2022-03-01 09:39:43 -05:00
pmc_mdep.h
proc.h	Make struct syscall_args machine independent	2021-12-08 18:45:33 +00:00
procctl.h
profile.h	riscv: fix uintfptr_t	2020-08-05 22:09:40 +00:00
psl.h
pte.h	riscv: Add various pmap definitions needed to support SV48 mode	2022-03-01 09:39:43 -05:00
ptrace.h
reg.h	riscv: Make machine/regs.h self-contained	2021-11-23 21:21:17 -07:00
reloc.h
resource.h	Enable NEW_PCIB on riscv.	2020-01-24 16:50:51 +00:00
riscvreg.h	riscv: Add support for enabling SV48 mode	2022-03-01 09:39:44 -05:00
runq.h
sbi.h	riscv: add SBI system reset extension	2021-01-27 19:19:54 -04:00
setjmp.h
sf_buf.h
sigframe.h
signal.h
smp.h
stack.h	Stack unwinding robustness fixes for RISC-V.	2020-12-08 17:57:18 +00:00
stdarg.h
sysarch.h
tls.h	Add <machine/tls.h> header to hold MD constants and helpers for TLS.	2021-12-09 13:17:13 -08:00
trap.h
ucontext.h
vdso.h	riscv: Implement non-stub __vdso_gettc and __vdso_gettimekeep	2021-07-05 16:16:53 +01:00
vm.h
vmparam.h	riscv: Add support for enabling SV48 mode	2022-03-01 09:39:44 -05:00