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[PATCH] target/riscv: Make VSTIP and VSEIP read-only in hip
From: |
Georg Kotheimer |
Subject: |
[PATCH] target/riscv: Make VSTIP and VSEIP read-only in hip |
Date: |
Thu, 11 Mar 2021 10:49:02 +0100 |
Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
---
target/riscv/csr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index fd2e6363f3..00a3ab72af 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -420,7 +420,8 @@ static const target_ulong sstatus_v1_10_mask = SSTATUS_SIE
| SSTATUS_SPIE |
SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS |
SSTATUS_SUM | SSTATUS_MXR | SSTATUS_SD;
static const target_ulong sip_writable_mask = SIP_SSIP | MIP_USIP | MIP_UEIP;
-static const target_ulong hip_writable_mask = MIP_VSSIP | MIP_VSTIP |
MIP_VSEIP;
+static const target_ulong hip_writable_mask = MIP_VSSIP;
+static const target_ulong hvip_writable_mask = MIP_VSSIP | MIP_VSTIP |
MIP_VSEIP;
static const target_ulong vsip_writable_mask = MIP_VSSIP;
static const char valid_vm_1_10_32[16] = {
@@ -962,9 +963,9 @@ static int rmw_hvip(CPURISCVState *env, int csrno,
target_ulong *ret_value,
target_ulong new_value, target_ulong write_mask)
{
int ret = rmw_mip(env, 0, ret_value, new_value,
- write_mask & hip_writable_mask);
+ write_mask & hvip_writable_mask);
- *ret_value &= hip_writable_mask;
+ *ret_value &= hvip_writable_mask;
return ret;
}
--
2.30.1
- [PATCH] target/riscv: Make VSTIP and VSEIP read-only in hip,
Georg Kotheimer <=