Radim Krčmář 009f77a9f0 lib: sbi_hart: reset hstatus ...

hstatus.HU must be cleared, because U-mode could otherwise use the
HLS/HSV instructions.  This would allow U-mode to read physical memory
directly if vgatp and vsatp was 0.

The remaining fields don't seem like a security vulnerability now, but
clearing the whole CSR is not an issue, so do that be safe.

Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Link: https://lore.kernel.org/r/20250429142549.3673976-5-rkrcmar@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2025-04-30 10:14:26 +05:30

..

tests

lib: tests: add bitwise operations unit tests

2025-03-23 21:06:25 +05:30

Kconfig

lib: sbi: Implement SBI MPXY extension

2024-12-06 09:26:52 +05:30

objects.mk

lib: sbi_misaligned_ldst: Add handling of vector load/store

2024-12-06 17:43:06 +05:30

riscv_asm.c

lib: sbi: check result of pmp_get() in is_pmp_entry_mapped()

2024-08-02 08:45:10 +05:30

riscv_atomic.c

lib: Emit lr and sc instructions based on -march flags

2025-03-28 18:52:05 +05:30

riscv_hardfp.S

lib: Move sbi core library to lib/sbi

2019-06-19 09:48:51 +05:30

riscv_locks.c

lib: Emit lr and sc instructions based on -march flags

2025-03-28 18:52:05 +05:30

sbi_bitmap.c

lib: Simple bitmap library

2020-03-11 15:29:45 +05:30

sbi_bitops.c

lib: fix compilation when strings.h is included

2022-02-04 11:04:19 +05:30

sbi_console.c

lib: sbi: Introduce an early console buffer for caching early prints

2024-07-24 12:18:41 +05:30

sbi_cppc.c

lib: sbi: Implement SBI CPPC extension

2023-04-07 09:36:01 +05:30

sbi_dbtr.c

lib: sbi: Update sbi_domain_is_assigned_hart() to take a hart index

2024-09-26 16:29:25 +05:30

sbi_domain_context.c

lib: sbi_domain: Reduce memory usage of per-domain hart context

2025-04-23 17:51:01 +05:30

sbi_domain_data.c

lib: sbi: Introduce domain data

2024-10-25 23:00:07 +05:30

sbi_domain.c

lib: sbi: Use sbi_hart_count() and sbi_for_each_hartindex()

2025-03-24 17:57:20 +05:30

sbi_double_trap.c

lib: sbi: sse: allow adding new events

2025-01-30 10:40:49 +05:30

sbi_ecall_base.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_cppc.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_dbcn.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_dbtr.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_exts.carray

lib: sbi_ecall: Generate extensions list with carray

2022-10-23 11:00:30 +05:30

sbi_ecall_fwft.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_hsm.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_ipi.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_legacy.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_mpxy.c

lib: sbi: Update MPXY framework and SBI extension as per latest spec

2025-02-13 11:10:03 +05:30

sbi_ecall_pmu.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_rfence.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_srst.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_sse.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_susp.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_time.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall_vendor.c

lib: sbi: Print list of available SBI extensions at boot-time

2024-12-22 11:16:13 +05:30

sbi_ecall.c

lib: sbi: Remove unnecessary SBI_INIT_LIST_HEAD

2025-04-15 11:38:20 +05:30

sbi_emulate_csr.c

lib: sbi: factorize previous mode computation

2024-10-25 23:53:18 +05:30

sbi_expected_trap.S

lib: sbi: Remove epc from struct sbi_trap_info

2024-03-19 11:31:16 +05:30

sbi_fifo.c

lib: sbi: Allow forceful queueing of data in sbi_fifo_enqueue()

2024-07-24 12:18:36 +05:30

sbi_fwft.c

lib: sbi: fwft: Return SBI_ERR_DENIED_LOCKED when setting a locked feature

2025-02-19 22:13:21 +05:30

sbi_hart.c

lib: sbi_hart: reset hstatus

2025-04-30 10:14:26 +05:30

sbi_heap.c

lib: sbi: Remove unnecessary SBI_INIT_LIST_HEAD

2025-04-15 11:38:20 +05:30

sbi_hfence.S

lib: sbi: Fix GPA passed to __sbi_hfence_gvma_xyz() functions

2021-11-02 16:02:08 +05:30

sbi_hsm.c

lib: sbi: Use sbi_hart_count() and sbi_for_each_hartindex()

2025-03-24 17:57:20 +05:30

sbi_illegal_insn.c

lib: sbi: factorize previous mode computation

2024-10-25 23:53:18 +05:30

sbi_init.c

lib: sbi: Fix non-root domain startup

2025-02-19 17:11:39 +05:30

sbi_ipi.c

lib: sbi_ipi: Return error for invalid hartids

2025-04-14 15:29:36 +05:30

sbi_irqchip.c

lib: sbi_irqchip: Set the IRQ handler when registering a chip

2024-11-28 11:51:56 +05:30

sbi_math.c

lib: Create a separate math helper function file

2020-05-10 09:59:24 +05:30

sbi_mpxy.c

lib: sbi_mpxy: Change MPXY state as per-domain data

2025-04-21 11:35:44 +05:30

sbi_platform.c

lib: sbi: Remove sbi_platform_hart_index/invalid() functions

2023-09-24 11:39:30 +05:30

sbi_pmu.c

lib: sbi: Allow programmable counters to monitor cycle/instret events for Andes PMU

2025-04-14 17:28:59 +05:30

sbi_scratch.c

lib: sbi: Set the scratch allocation to alignment to cacheline size

2025-04-24 09:23:47 +05:30

sbi_sse.c

lib: sbi: sse: Add support for SSTATUS.SDT

2025-03-27 18:16:44 +05:30

sbi_string.c

lib: sbi: Fix potential garbage data in string copy functions

2025-03-23 18:38:57 +05:30

sbi_system.c

lib: sbi: factorize previous mode computation

2024-10-25 23:53:18 +05:30

sbi_timer.c

lib: sbi: use 64 bit csr macros

2025-04-30 10:14:25 +05:30

sbi_tlb.c

lib: sbi: Allow forceful queueing of data in sbi_fifo_enqueue()

2024-07-24 12:18:36 +05:30

sbi_trap_ldst.c

lib: sbi_misaligned_ldst: Add handling of vector load/store

2024-12-06 17:43:06 +05:30

sbi_trap_v_ldst.c

Makefile: Don't enable V-extension using -march option

2024-12-15 11:30:48 +05:30

sbi_trap.c

lib: sbi_trap: Add support for vectored interrupts

2025-04-13 05:51:17 +05:30

sbi_unpriv.c

lib: sbi: Remove unnecessary semicolon

2023-05-11 12:31:34 +05:30