7a16948063
- ppc/xive: Fix ESB length overflow on 32-bit hosts - target/hppa: Fix PSW V-bit packaging in cpu_hppa_get for hppa64 - target/ppc: Fix migration of CPUs with TLB_EMB TLB type - target/arm: Clear high SVE elements in handle_vec_simd_wshli - module: Prevent crash by resetting local_err in module_load_qom_all() - tests/docker: update debian i686 and mipsel images to bookworm - target/arm: Fix SVE SDOT/UDOT/USDOT (4-way, indexed) - docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str - block/blkio: use FUA flag on write zeroes only if supported - virtio-pci: Fix the use of an uninitialized irqfd - hw/cxl: Ensure there is enough data to read the input header in cmd_get_physical_port_state() - intel_iommu: Send IQE event when setting reserved bit in IQT_TAIL - virtio-net: Avoid indirection_table_mask overflow - Fix calculation of minimum in colo_compare_tcp - target/riscv/csr.c: Fix an access to VXSAT - linux-user: Clean up unused header - raw-format: Fix error message for invalid offset/size - hw/loongarch/virt: Remove unnecessary 'cpu.h' inclusion - tests: Wait for migration completion on destination QEMU to avoid failures - acpi: ged: Add macro for acpi sleep control register - hw/intc/openpic: Improve errors for out of bounds property values - hw/pci-bridge: Add a Kconfig switch for the normal PCI bridge - docs/tools/qemu-img.rst: fix typo (sumarizes) - audio/pw: Report more accurate error when connecting to PipeWire fails - audio/pw: Report more accurate error when connecting to PipeWire fails - dma: Fix function names in documentation Ensure the function names match. - edu: fix DMA range upper bound check - platform-bus: fix refcount leak - hw/net/can/sja1000: fix bug for single acceptance filter and standard frame - tests/avocado: fix typo in replay_linux - util/userfaultfd: Remove unused uffd_poll_events - Consider discard option when writing zeros - crypto: factor out conversion of QAPI to gcrypt constants - crypto: drop gnutls debug logging support - crypto: use consistent error reporting pattern for unsupported cipher modes - hw/gpio/aspeed_gpio: Avoid shift into sign bit Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com> (cherry picked from commit b6e04df301d30895427ab41a1edff0f40149bdd9)
53 lines
1.8 KiB
Diff
53 lines
1.8 KiB
Diff
From 6b1b8553ea3810e497d225d64e98dd6eac7b4e2c Mon Sep 17 00:00:00 2001
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From: qihao_yewu <qihao_yewu@cmss.chinamobile.com>
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Date: Tue, 5 Nov 2024 03:21:00 -0500
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Subject: [PATCH] target/riscv/csr.c: Fix an access to VXSAT
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cheery-pick from 5a60026cad4e9dba929cab4f63229e4b9110cf0a
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The register VXSAT should be RW only to the first bit.
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The remaining bits should be 0.
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The RISC-V Instruction Set Manual Volume I: Unprivileged Architecture
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The vxsat CSR has a single read-write least-significant bit (vxsat[0])
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that indicates if a fixed-point instruction has had to saturate an output
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value to fit into a destination format. Bits vxsat[XLEN-1:1]
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should be written as zeros.
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Signed-off-by: Evgenii Prokopiev <evgenii.prokopiev@syntacore.com>
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Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
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Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
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Message-ID: <20241002084436.89347-1-evgenii.prokopiev@syntacore.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Signed-off-by: qihao_yewu <qihao_yewu@cmss.chinamobile.com>
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---
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target/riscv/csr.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/target/riscv/csr.c b/target/riscv/csr.c
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index fde7ce1a53..d1bb7bc0d3 100644
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--- a/target/riscv/csr.c
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+++ b/target/riscv/csr.c
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@@ -704,7 +704,7 @@ static RISCVException write_vxrm(CPURISCVState *env, int csrno,
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static RISCVException read_vxsat(CPURISCVState *env, int csrno,
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target_ulong *val)
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{
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- *val = env->vxsat;
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+ *val = env->vxsat & BIT(0);
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return RISCV_EXCP_NONE;
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}
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@@ -714,7 +714,7 @@ static RISCVException write_vxsat(CPURISCVState *env, int csrno,
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#if !defined(CONFIG_USER_ONLY)
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env->mstatus |= MSTATUS_VS;
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#endif
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- env->vxsat = val;
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+ env->vxsat = val & BIT(0);
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return RISCV_EXCP_NONE;
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}
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--
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2.41.0.windows.1
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