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From: Rajnesh Kanwal <rkanwal@rivosinc.com>
To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org
Cc: palmer@dabbelt.com, alistair.francis@wdc.com,
	bin.meng@windriver.com, liweiwei@iscas.ac.cn,
	dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com,
	atishp@rivosinc.com, apatel@ventanamicro.com,
	rkanwal@rivosinc.com
Subject: [PATCH v2 2/6] target/riscv: Check for async flag in case of RISCV_EXCP_SEMIHOST.
Date: Fri, 26 May 2023 17:23:04 +0100	[thread overview]
Message-ID: <20230526162308.22892-3-rkanwal@rivosinc.com> (raw)
In-Reply-To: <20230526162308.22892-1-rkanwal@rivosinc.com>

RISCV_EXCP_SEMIHOST is set to 0x10, which can be a local interrupt id
as well. This change moves RISCV_EXCP_SEMIHOST to switch case so that
async flag check is performed before invoking semihosting logic.

Signed-off-by: Rajnesh Kanwal <rkanwal@rivosinc.com>
---
 target/riscv/cpu_helper.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 57d04385f1..b25ee179e9 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -1602,15 +1602,13 @@ void riscv_cpu_do_interrupt(CPUState *cs)
     target_ulong htval = 0;
     target_ulong mtval2 = 0;
 
-    if  (cause == RISCV_EXCP_SEMIHOST) {
-        do_common_semihosting(cs);
-        env->pc += 4;
-        return;
-    }
-
     if (!async) {
         /* set tval to badaddr for traps with address information */
         switch (cause) {
+        case RISCV_EXCP_SEMIHOST:
+            do_common_semihosting(cs);
+            env->pc += 4;
+            return;
         case RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT:
         case RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT:
         case RISCV_EXCP_LOAD_ADDR_MIS:
-- 
2.25.1



  parent reply	other threads:[~2023-05-26 16:24 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-26 16:23 [PATCH v2 0/6] target/riscv: Add RISC-V Virtual IRQs and IRQ filtering support Rajnesh Kanwal
2023-05-26 16:23 ` [PATCH v2 1/6] target/riscv: Without H-mode mask all HS mode inturrupts in mie Rajnesh Kanwal
2023-06-02  3:10   ` Alistair Francis
2023-05-26 16:23 ` Rajnesh Kanwal [this message]
2023-06-02  3:13   ` [PATCH v2 2/6] target/riscv: Check for async flag in case of RISCV_EXCP_SEMIHOST Alistair Francis
2023-05-26 16:23 ` [PATCH v2 3/6] target/riscv: Set VS* bits to one in mideleg when H-Ext is enabled Rajnesh Kanwal
2023-06-02  3:17   ` Alistair Francis
2023-05-26 16:23 ` [PATCH v2 4/6] target/riscv: Split interrupt logic from riscv_cpu_update_mip Rajnesh Kanwal
2023-06-02  3:26   ` Alistair Francis
2023-05-26 16:23 ` [PATCH v2 5/6] target/riscv: Add M-mode virtual interrupt and IRQ filtering support Rajnesh Kanwal
2023-06-30  9:26   ` Daniel Henrique Barboza
2023-05-26 16:23 ` [PATCH v2 6/6] target/riscv: Add HS-mode " Rajnesh Kanwal
2023-06-30  9:33   ` Daniel Henrique Barboza
2023-09-06 14:38 ` [PATCH v2 0/6] target/riscv: Add RISC-V Virtual IRQs " Daniel Henrique Barboza
2023-09-21  6:29   ` Rajnesh Kanwal

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