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remap

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Commit Graph

56 Commits (master)

Author	SHA1	Message	Date
Andrew Waterman	abadfdc507	Avoid dependence on asm ssp symbol Resolves #336	1 year ago
Andrew Waterman	7f3bef0119	Enable CBOs (but upgrade inval to flush for safety)	2 years ago
Andrew Waterman	47a2e87ccd	Support CFI shadow stacks via --zicfiss command-line arg	2 years ago
Ming-Yi Lai	6c62461a1e	Zicfilp: Support enabling userspace Zicfilp mechanism	2 years ago
Andrew Waterman	7e9b671c04	Specify text section in rest_of_boot_loader definition Fixes #282	4 years ago
Christoph Müllner	12edfed73d	pk: Fix __clear_cache() compilation issue with recent compilers (#240) Using recent compilers we get the following error message: ../pk/pk.c: In function 'run_loaded_program.constprop': ../pk/pk.c:177:3: error: both arguments to '__builtin___clear_cache' must be pointers 177 | __clear_cache(0, 0); | ^~~~~~~~~~~~~~~~~~~ Let's use the existing function __riscv_flush_icache(), give it a header with a prototype and use it to emits the FENCE.I instruction directly. See #239 Suggested-by: Andrew Waterman <andrew@sifive.com> Signed-off-by: Christoph Muellner <cmuellner@linux.com>	5 years ago
Andrew Waterman	168c5cac03	pk: don't init files until VM setup is complete	5 years ago
Andrew Waterman	146391f7eb	pk: refactor vm free list management	5 years ago
Andrew Waterman	b9eba474fb	pk: support >2 GiB of user memory for RV64 Previously, the pk would always run from virtual address MEM_START. Instead, remap it into the negative virtual addresses, allowing user processes to expand beyond MEM_START.	5 years ago
Andrew Waterman	817e7d0dfe	pk: only access user memory through explicit accessors Enforced with sstatus.SUM.	5 years ago
Marcus Comstedt	5752f0a173	pk: Fix pushing of argc to match linux kernel behaviour The linux kernel pushes argc as an int, not an uintptr_t. (The offset to the next element is still sizeof(uintptr_t).)	6 years ago
Andrew Waterman	6fa3555cc5	Enable vector unit if present (continuation of 77a5df5694)	6 years ago
Luís Marques	92d3a34a9b	Add --help (#179)	7 years ago
Luís Marques	99d6d0a93f	Make performance counters always 64 bits wide (#178) This prevents the counters from easily overflowing for a 32-bit pk.	7 years ago
Andrew Waterman	cb253a3f97	Allow up to 2 KiB of arguments Closes #161	7 years ago
Andrew Waterman	16476bd821	Properly license all nontrivial files	8 years ago
Andrew Waterman	f2aaee46b9	Enable FPU in PK, regardless of FPU presence Otherwise, the emulation code will refuse to emulate FP instructions.	8 years ago
Palmer Dabbelt	9204785053	Detect harts that can't boot Linux instead of hard-coding them This checks to see if a hart can't boot Linux by looking for a compatible "mmu-type" field. If the hart can't boot Linux, then bbl masks it off.	9 years ago
Wesley W. Terpstra	96965a8cc6	pk: does not use dtb	9 years ago
Wesley W. Terpstra	23ab37ad78	SBI: a0+a1 hold hartid+dtb pointer between boot loader stages	9 years ago
Andrew Waterman	7d60c5904f	Allow PK access to user memory	9 years ago
Andrew Waterman	926b360655	WIP towards ECALL interface for SBI	9 years ago
Andrew Waterman	e5ed1d115c	Add ability to hard-code an initial environment	10 years ago
Andrew Waterman	4a6b20595a	Add -p flag to pk to disable demand paging	10 years ago
Andrew Waterman	0a7862c79f	when -s is passed, print time, instret, cycle, and CPI	10 years ago
Andrew Waterman	d88671efdf	Remove uarch counters We'll re-add support for the generic performance counter facility once it exists.	10 years ago
Andrew Waterman	7389e46cd0	Move DRAM to high addresses	10 years ago
Andrew Waterman	ee00503ebe	Don't assume existence of uarch counters	10 years ago
Andrew Waterman	b94c7a4b07	Refactor pk, bbl, machine into separate libraries Yuck.	10 years ago
Andrew Waterman	33ed6c6c5e	get rid of struct mainvars	10 years ago
Andrew Waterman	80447e5711	Disentangle PK and BBL a bit	10 years ago
Andrew Waterman	ad7a60abea	WIP on priv spec v1.9	10 years ago
Andrew Waterman	31ad71b8a4	Remove incorrect code supporting ELF32 on RV64 and vice-versa This is technically possible by running an RV32 supervisor on an RV64 machine, but the M-mode and S-mode code would need to be compiled and linked separately.	10 years ago
Andrew Waterman	cffdcee338	Make boot loader/SBI changes to support SMP Linux	11 years ago
Andrew Waterman	87683e74f5	Split pk functionality into pk and bbl pk is now an AEE only (i.e. it can only execute user programs). bbl is now an SEE only (i.e. it can only host kernels).	11 years ago
Andrew Waterman	1a8572a47d	Upgrade to privileged architecture 1.7	11 years ago
Andrew Waterman	33e738d643	Add ASCII art boot logo It's only printed when booting the Linux kernel. Feel free to improve the quality of the ASCII art. It looks like this when rendered: vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv rr vvvvvvvvvvvvvvvvvvvvvv rr vvvvvvvvvvvvvvvvvvvvvvvv rr rrrr vvvvvvvvvvvvvvvvvvvvvvvvvv rrrr rrrrrr vvvvvvvvvvvvvvvvvvvvvv rrrrrr rrrrrrrr vvvvvvvvvvvvvvvvvv rrrrrrrr rrrrrrrrrr vvvvvvvvvvvvvv rrrrrrrrrr rrrrrrrrrrrr vvvvvvvvvv rrrrrrrrrrrr rrrrrrrrrrrrrr vvvvvv rrrrrrrrrrrrrr rrrrrrrrrrrrrrrr vv rrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrr INSTRUCTION SETS WANT TO BE FREE	11 years ago
Andrew Waterman	e474878db4	Fix stack discipline for recursive traps	11 years ago
Andrew Waterman	a24e1934dd	Remove errant statement forcing mem size to 64M h/t Palmer	11 years ago
Andrew Waterman	a79f62f72a	Merge [shm]call into ecall, [shm]ret into eret	11 years ago
Andrew Waterman	6517fe26a2	Update to new privileged spec	11 years ago
Andrew Waterman	5c86450130	work in progress on new supervisor spec	11 years ago
Andrew Waterman	0a81fd3a93	Support linkat, unlinkat, mkdirat syscalls Also, old-style syscalls e.g. open are now implemented with e.g. openat.	11 years ago
Andrew Waterman	069bdd3f0d	Implement draft of new calling convention Here is the new syscall ABI: syscall number in a7 args in a0 - a6 return value in a0 Here is the integer register map: x0 -> x0 x1 -> ra x2 -> sp x3 -> tp x4 -> gp x5 -> t0 x6 -> t1 x7 -> t2 x8 -> s0 x9 -> s1 x10 -> a0 x11 -> a1 x12 -> a2 x13 -> a3 x14 -> a4 x15 -> a5 x16 -> a6 x17 -> a7 x18 -> s2 x19 -> s3 x20 -> s4 x21 -> s5 x22 -> s6 x23 -> s7 x24 -> s8 x25 -> s9 x26 -> s10 x27 -> s11 x28 -> t3 x29 -> t4 x30 -> t5 x31 -> t6	12 years ago
Andrew Waterman	1d953bf6fc	Support glibc 2.20 programs	12 years ago
Christopher Celio	5eba64df88	Added "-c" option to track uarch counter info.	12 years ago
Andrew Waterman	e3fa35fb85	Handle options before vm_init is called This prevents ptbr etc. from being accessed when -p is passed.	12 years ago
Colin Schmidt	e50dc18f5d	Add several syscalls, and move syscall header file from newlib syscalls added (openat, access, accessat, faccessat, etc.)	12 years ago
Andrew Waterman	f1f8dbbed0	Abandon MIPS convention for indicating syscall errors in register a3	12 years ago
Andrew Waterman	5cd583648d	Speed up glibc init	12 years ago