[PATCH] lib: sbi: Fix bug in sbi_ecall_rfence that misses checking
From: Dong Du <hidden>
Date: 2021-08-13 12:33:00
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
In sbi_ecall_rfence_handler, it will compare the funcid with REMOTE_HFENCE_GVMA and REMOTE_HFENCE_VVMA_ASID. And then check whether the misa includes H-extension. This checking is incomplete which misses REMOTE_HFENCE_GVMA_VMID and REMOTE_HFENCE_VVMA. Fix the issue by updating the checking range. Signed-off-by: Dong Du <redacted> --- lib/sbi/sbi_ecall_replace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/sbi/sbi_ecall_replace.c b/lib/sbi/sbi_ecall_replace.c
index a7935d9..5d24565 100644
--- a/lib/sbi/sbi_ecall_replace.c
+++ b/lib/sbi/sbi_ecall_replace.c@@ -54,8 +54,8 @@ static int sbi_ecall_rfence_handler(unsigned long extid, unsigned long funcid, struct sbi_tlb_info tlb_info; u32 source_hart = current_hartid(); - if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA && - funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID) + if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID && + funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA) if (!misa_extension('H')) return SBI_ENOTSUPP;
--
2.31.1