Sean Chang 52738352a6 riscv: kvm: Use endian-specific __lelong for NACL shared memory ...

When compiling with sparse enabled (C=2), bitwise type warnings are
triggered in the RISC-V KVM implementation. This occurs because the
user-space data unboxing macro '__get_user_asm' performs implicit
casting on restricted types without forcing the compiler's compliance.

Additionally, raw 'unsigned long *' pointers are used to access the
SBI NACL shared memory, whereas the RISC-V SBI specification mandates
that these structures must follow little-endian byte ordering.

Fix these by:
1. Adding a '__force' cast to '__get_user_asm()' to safely suppress
   implicit cast warnings during user-space data fetching.
2. Introducing the '__lelong' type macro, which dynamically resolves to
   '__le32' or '__le64' depending on XLEN, and replacing 'unsigned long *'
   with '__lelong *' to enforce proper compile-time endianness checks.

Signed-off-by: Sean Chang <seanwascoding@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260608155252.4292-1-seanwascoding@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-06-14 11:09:41 +05:30

..

aia_aplic.c

RISC-V: KVM: Use flexible array for APLIC IRQ state

2026-06-01 13:55:04 +05:30

aia_device.c

RISC-V: KVM: AIA: Make HGEI number management fully per-CPU

2026-05-26 09:05:10 +05:30

aia_imsic.c

RISC-V: KVM: Fix NULL pointer dereference in AIA IMSIC functions

2026-06-04 11:18:12 +05:30

aia.c

RISC-V: KVM: AIA: Make HGEI number management fully per-CPU

2026-05-26 09:05:10 +05:30

gstage.c

RISC-V: KVM: Fix skip of valid pages in kvm_riscv_gstage_unmap_range

2026-06-07 11:41:43 +05:30

isa.c

RISC-V: KVM: Factor-out ISA checks into separate sources

2026-04-03 17:35:01 +05:30

Kconfig

KVM: remove CONFIG_KVM_GENERIC_MMU_NOTIFIER

2026-02-28 15:31:35 +01:00

main.c

RISC-V: KVM: AIA: Make HGEI number management fully per-CPU

2026-05-26 09:05:10 +05:30

Makefile

RISC-V: KVM: Factor-out VCPU config into separate sources

2026-04-03 17:48:40 +05:30

mmu.c

KVM: riscv: Check hugetlb block mappings against memslot bounds

2026-06-07 10:54:40 +05:30

nacl.c

riscv: kvm: Use endian-specific __lelong for NACL shared memory

2026-06-14 11:09:41 +05:30

tlb.c

Merge tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2026-04-24 10:00:37 -07:00

trace.h

RISCV: KVM: add tracepoints for entry and exit events

2024-06-26 18:37:36 +05:30

vcpu_config.c

RISC-V: KVM: Factor-out VCPU config into separate sources

2026-04-03 17:48:40 +05:30

vcpu_exit.c

RISC-V: KVM: Factor-out g-stage page table management

2025-07-28 22:27:30 +05:30

vcpu_fp.c

RISC-V: KVM: Factor-out ISA checks into separate sources

2026-04-03 17:35:01 +05:30

vcpu_insn.c

RISC-V: KVM: Fix sign extension for MMIO loads

2026-05-18 10:19:18 +05:30

vcpu_onereg.c

RISC-V: KVM: Factor-out ISA checks into separate sources

2026-04-03 17:35:01 +05:30

vcpu_pmu.c

riscv: kvm: return SBI_ERR_FAILURE for pmu_event_info() when OOM

2026-05-18 10:19:18 +05:30

vcpu_sbi_base.c

RISC-V: KVM: Add separate source for forwarded SBI extensions

2025-11-24 09:55:36 +05:30

vcpu_sbi_forward.c

RISC-V: KVM: Add SBI MPXY extension support for Guest

2025-11-24 09:55:36 +05:30

vcpu_sbi_fwft.c

KVM: RISC-V: SBI FWFT: Fix stale feature exposure after runtime extension changes

2026-06-05 21:38:58 +05:30

vcpu_sbi_hsm.c

KVM: RISC-V: refactor sbi reset request

2025-05-21 09:34:49 +05:30

vcpu_sbi_pmu.c

RISC-V: KVM: Implement get event info function

2025-09-16 11:49:31 +05:30

vcpu_sbi_replace.c

RISC-V: KVM: Add separate source for forwarded SBI extensions

2025-11-24 09:55:36 +05:30

vcpu_sbi_sta.c

RISC-V: KVM: Fix invalid HVA warning in steal-time recording

2026-05-18 10:19:18 +05:30

vcpu_sbi_system.c

RISC-V: KVM: Document a TOCTOU race in SBI system suspend handler

2026-06-04 11:12:40 +05:30

vcpu_sbi_v01.c

RISC-V: KVM: Fix NULL pointer dereference in SBI v0.1 SEND_IPI handler

2026-05-18 10:19:18 +05:30

vcpu_sbi.c

RISC-V: KVM: Add SBI MPXY extension support for Guest

2025-11-24 09:55:36 +05:30

vcpu_switch.S

RISC-V: KVM: Use SBI sync SRET call when available

2024-10-28 16:44:03 +05:30

vcpu_timer.c

RISC-V: KVM: Fix timer state restore

2026-06-04 12:18:43 +05:30

vcpu_vector.c

RISC-V: KVM: Factor-out ISA checks into separate sources

2026-04-03 17:35:01 +05:30

vcpu.c

RISC-V: KVM: Fix ebreak self test failure

2026-05-26 09:04:22 +05:30

vm.c

RISC-V: KVM: Reuse KVM_CAP_VM_GPA_BITS to select HGATP.MODE

2026-04-04 13:48:21 +05:30

vmid.c

RISC-V: KVM: Support runtime configuration for per-VM's HGATP mode

2026-04-04 13:21:21 +05:30