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[PATCH v7.2.3 18/30] target/riscv: Fix itrigger when icount is used
From: |
Michael Tokarev |
Subject: |
[PATCH v7.2.3 18/30] target/riscv: Fix itrigger when icount is used |
Date: |
Wed, 17 May 2023 12:10:30 +0300 |
From: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
When I boot a ubuntu image, QEMU output a "Bad icount read" message and exit.
The reason is that when execute helper_mret or helper_sret, it will
cause a call to icount_get_raw_locked (), which needs set can_do_io flag
on cpustate.
Thus we setting this flag when execute these two instructions.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/insn_trans/trans_privileged.c.inc | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/target/riscv/insn_trans/trans_privileged.c.inc
b/target/riscv/insn_trans/trans_privileged.c.inc
index 3281408a87..74e2894462 100644
--- a/target/riscv/insn_trans/trans_privileged.c.inc
+++ b/target/riscv/insn_trans/trans_privileged.c.inc
@@ -77,6 +77,9 @@ static bool trans_sret(DisasContext *ctx, arg_sret *a)
#ifndef CONFIG_USER_ONLY
if (has_ext(ctx, RVS)) {
decode_save_opc(ctx);
+ if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
+ gen_io_start();
+ }
gen_helper_sret(cpu_pc, cpu_env);
tcg_gen_exit_tb(NULL, 0); /* no chaining */
ctx->base.is_jmp = DISAS_NORETURN;
@@ -93,6 +96,9 @@ static bool trans_mret(DisasContext *ctx, arg_mret *a)
{
#ifndef CONFIG_USER_ONLY
decode_save_opc(ctx);
+ if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) {
+ gen_io_start();
+ }
gen_helper_mret(cpu_pc, cpu_env);
tcg_gen_exit_tb(NULL, 0); /* no chaining */
ctx->base.is_jmp = DISAS_NORETURN;
--
2.39.2
- [PATCH v7.2.3 07/30] hw/net/msf2-emac: Don't modify descriptor in-place in emac_store_desc(), (continued)
- [PATCH v7.2.3 07/30] hw/net/msf2-emac: Don't modify descriptor in-place in emac_store_desc(), Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 10/30] hw/arm/raspi: Use arm_write_bootloader() to write boot code, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 09/30] hw/arm/aspeed: Use arm_write_bootloader() to write the bootloader, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 11/30] hw/intc/allwinner-a10-pic: Don't use set_bit()/clear_bit(), Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 12/30] target/arm: Define and use new load_cpu_field_low32(), Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 13/30] hw/sd/allwinner-sdhost: Correctly byteswap descriptor fields, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 14/30] hw/net/allwinner-sun8i-emac: Correctly byteswap descriptor fields, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 19/30] accel/tcg: Fix atomic_mmu_lookup for reads, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 17/30] block: Fix use after free in blockdev_mark_auto_del(), Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 16/30] meson: leave unnecessary modules out of the build, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 18/30] target/riscv: Fix itrigger when icount is used,
Michael Tokarev <=
- [PATCH v7.2.3 22/30] tcg: ppc64: Fix mask generation for vextractdm, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 20/30] ui: Fix pixel colour channel order for PNG screenshots, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 24/30] virtio: fix reachable assertion due to stale value of cached region size, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 15/30] softfloat: Fix the incorrect computation in float32_exp2, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 21/30] async: Suppress GCC13 false positive in aio_bh_poll(), Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 23/30] hw/virtio/vhost-user: avoid using unitialized errp, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 26/30] target/s390x: Fix EXECUTE of relative branches, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 25/30] block/monitor: Fix crash when executing HMP commit, Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 29/30] Revert "vhost-user: Monitor slave channel in vhost_user_read()", Michael Tokarev, 2023/05/17
- [PATCH v7.2.3 27/30] 9pfs/xen: Fix segfault on shutdown, Michael Tokarev, 2023/05/17