From: Weiwei Li <liweiwei@iscas.ac.cn>
To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org
Cc: palmer@dabbelt.com, alistair.francis@wdc.com,
bin.meng@windriver.com, dbarboza@ventanamicro.com,
zhiwei_liu@linux.alibaba.com, richard.henderson@linaro.org,
wangjunqiang@iscas.ac.cn, lazyparser@gmail.com,
Weiwei Li <liweiwei@iscas.ac.cn>
Subject: [PATCH v4 2/7] target/riscv: Move pmp_get_tlb_size apart from get_physical_address_pmp
Date: Sat, 22 Apr 2023 21:03:24 +0800 [thread overview]
Message-ID: <20230422130329.23555-3-liweiwei@iscas.ac.cn> (raw)
In-Reply-To: <20230422130329.23555-1-liweiwei@iscas.ac.cn>
pmp_get_tlb_size can be separated from get_physical_address_pmp and is only
needed when ret == TRANSLATE_SUCCESS.
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
---
target/riscv/cpu_helper.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 075fc0538a..83c9699a6d 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -676,14 +676,11 @@ void riscv_cpu_set_mode(CPURISCVState *env, target_ulong newpriv)
*
* @env: CPURISCVState
* @prot: The returned protection attributes
- * @tlb_size: TLB page size containing addr. It could be modified after PMP
- * permission checking. NULL if not set TLB page for addr.
* @addr: The physical address to be checked permission
* @access_type: The type of MMU access
* @mode: Indicates current privilege level.
*/
-static int get_physical_address_pmp(CPURISCVState *env, int *prot,
- target_ulong *tlb_size, hwaddr addr,
+static int get_physical_address_pmp(CPURISCVState *env, int *prot, hwaddr addr,
int size, MMUAccessType access_type,
int mode)
{
@@ -703,9 +700,6 @@ static int get_physical_address_pmp(CPURISCVState *env, int *prot,
}
*prot = pmp_priv_to_page_prot(pmp_priv);
- if (tlb_size != NULL) {
- *tlb_size = pmp_get_tlb_size(env, addr);
- }
return TRANSLATE_SUCCESS;
}
@@ -905,7 +899,7 @@ restart:
}
int pmp_prot;
- int pmp_ret = get_physical_address_pmp(env, &pmp_prot, NULL, pte_addr,
+ int pmp_ret = get_physical_address_pmp(env, &pmp_prot, pte_addr,
sizeof(target_ulong),
MMU_DATA_LOAD, PRV_S);
if (pmp_ret != TRANSLATE_SUCCESS) {
@@ -1300,8 +1294,9 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
prot &= prot2;
if (ret == TRANSLATE_SUCCESS) {
- ret = get_physical_address_pmp(env, &prot_pmp, &tlb_size, pa,
+ ret = get_physical_address_pmp(env, &prot_pmp, pa,
size, access_type, mode);
+ tlb_size = pmp_get_tlb_size(env, pa);
qemu_log_mask(CPU_LOG_MMU,
"%s PMP address=" HWADDR_FMT_plx " ret %d prot"
@@ -1333,8 +1328,9 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
__func__, address, ret, pa, prot);
if (ret == TRANSLATE_SUCCESS) {
- ret = get_physical_address_pmp(env, &prot_pmp, &tlb_size, pa,
+ ret = get_physical_address_pmp(env, &prot_pmp, pa,
size, access_type, mode);
+ tlb_size = pmp_get_tlb_size(env, pa);
qemu_log_mask(CPU_LOG_MMU,
"%s PMP address=" HWADDR_FMT_plx " ret %d prot"
--
2.25.1
next prev parent reply other threads:[~2023-04-22 13:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-22 13:03 [PATCH v4 0/7] target/riscv: Fix PMP related problem Weiwei Li
2023-04-22 13:03 ` [PATCH v4 1/7] target/riscv: Update pmp_get_tlb_size() Weiwei Li
2023-04-28 2:23 ` LIU Zhiwei
2023-04-22 13:03 ` Weiwei Li [this message]
2023-04-28 2:30 ` [PATCH v4 2/7] target/riscv: Move pmp_get_tlb_size apart from get_physical_address_pmp LIU Zhiwei
2023-04-22 13:03 ` [PATCH v4 3/7] target/riscv: Flush TLB when pmpaddr is updated Weiwei Li
2023-04-22 13:03 ` [PATCH v4 4/7] target/riscv: Flush TLB only when pmpcfg/pmpaddr really changes Weiwei Li
2023-04-22 13:03 ` [PATCH v4 5/7] accel/tcg: Uncache the host address for instruction fetch when tlb size < 1 Weiwei Li
2023-04-28 22:10 ` Richard Henderson
2023-04-22 13:03 ` [PATCH v4 6/7] target/riscv: Make the short cut really work in pmp_hart_has_privs Weiwei Li
2023-04-22 13:03 ` [PATCH v4 7/7] target/riscv: Separate pmp_update_rule() in pmpcfg_csr_write Weiwei Li
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