qemu/target-arm-fix-exception-syndrome-for-AArch32-bkpt-i.patch
Jiabo Feng 5636aff5b1 QEMU update to version 8.2.0-29:
- target/i386: csv: Support inject secret for CSV3 guest only if the extension is enabled
- target/i386: csv: Support load kernel hashes for CSV3 guest only if the extension is enabled
- target/i386: csv: Request to set private memory of CSV3 guest if the extension is enabled
- target/i386: kvm: Support to get and enable extensions for Hygon CoCo guest
- qapi/qom,target/i386: csv-guest: Introduce secret-header-file=str and secret-file=str options
- bakcend: VirtCCA:resolve hugepage memory waste issue in vhost-user scenario
- parallels: fix ext_off assertion failure due to overflow
- backends/cryptodev-vhost-user: Fix local_error leaks
- hw/usb/hcd-ehci: Fix debug printf format string
- target/riscv/vector_helper.c: fix 'vmvr_v' memcpy endianess
- target/riscv/vector_helper.c: optimize loops in ldst helpers
- target/riscv/vector_helper.c: set vstart = 0 in GEN_VEXT_VSLIDEUP_VX()
- target/hexagon: don't look for static glib
- virtio-net: Fix network stall at the host side waiting for kick
- Add if condition to avoid assertion failed error in blockdev_init
- target/arm: Use float_status copy in sme_fmopa_s
- target/arm: take HSTR traps of cp15 accesses to EL2, not EL1
- target/arm: Reinstate "vfp" property on AArch32 CPUs
- target/i386/cpu: Fix notes for CPU models
- target/arm: LDAPR should honour SCTLR_ELx.nAA
- target/riscv: Avoid bad shift in riscv_cpu_do_interrupt()
- hvf: remove unused but set variable
- hw/misc/nrf51_rng: Don't use BIT_MASK() when we mean BIT()
- Avoid taking address of out-of-bounds array index
- target/arm: Fix VCMLA Dd, Dn, Dm[idx]
- target/arm: Fix UMOPA/UMOPS of 16-bit values
- target/arm: Fix SVE/SME gross MTE suppression checks
- target/arm: Fix nregs computation in do_{ld,st}_zpa
- crypto: fix error check on gcry_md_open
- Change vmstate_cpuhp_sts vmstateDescription version_id
- hw/pci: Remove unused pci_irq_pulse() method
- hw/intc: Don't clear pending bits on IRQ lowering
- target/arm: Drop user-only special case in sve_stN_r
- migration: Ensure vmstate_save() sets errp
- target/i386: fix hang when using slow path for ptw_setl
- contrib/plugins: add compat for g_memdup2
- hw/audio/hda: fix memory leak on audio setup
- crypto: perform runtime check for hash/hmac support in gcrypt
- target/arm: Fix incorrect aa64_tidcp1 feature check
- target/arm: fix exception syndrome for AArch32 bkpt insn
- target/arm: Don't get MDCR_EL2 in pmu_counter_enabled() before checking ARM_FEATURE_PMU
- linux-user: Print tid not pid with strace
- target/arm: Fix A64 scalar SQSHRN and SQRSHRN
- target/arm: Don't assert for 128-bit tile accesses when SVL is 128
- hw/timer/exynos4210_mct: fix possible int overflow
- target/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()
- hw/audio/virtio-snd: Always use little endian audio format
- target/riscv: Fix vcompress with rvv_ta_all_1s
- usb-hub: Fix handling port power control messages

Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>
(cherry picked from commit d4a20b24ff377fd07fcbf2b72eecaf07a3ac4cc0)
2025-02-22 11:25:56 +08:00

92 lines
3.2 KiB
Diff

From 3031ddd4dd45a706def011a9d6afdacd2557d147 Mon Sep 17 00:00:00 2001
From: gubin <gubin_yewu@cmss.chinamobile.com>
Date: Thu, 28 Nov 2024 14:26:43 +0800
Subject: [PATCH] target/arm: fix exception syndrome for AArch32 bkpt insn
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
cherry-pick from f670be1aad33e801779af580398895b9455747ee
Debug exceptions that target AArch32 Hyp mode are reported differently
than on AAarch64. Internally, Qemu uses the AArch64 syndromes. Therefore
such exceptions need to be either converted to a prefetch abort
(breakpoints, vector catch) or a data abort (watchpoints).
Cc: qemu-stable@nongnu.org
Signed-off-by: Jan Klötzke <jan.kloetzke@kernkonzept.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240127202758.3326381-1-jan.kloetzke@kernkonzept.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: gubin <gubin_yewu@cmss.chinamobile.com>
---
target/arm/helper.c | 18 ++++++++++++++++++
target/arm/syndrome.h | 8 ++++++++
2 files changed, 26 insertions(+)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 793aa89cc6..35b8eaf15a 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -10848,6 +10848,24 @@ static void arm_cpu_do_interrupt_aarch32(CPUState *cs)
}
if (env->exception.target_el == 2) {
+ /* Debug exceptions are reported differently on AArch32 */
+ switch (syn_get_ec(env->exception.syndrome)) {
+ case EC_BREAKPOINT:
+ case EC_BREAKPOINT_SAME_EL:
+ case EC_AA32_BKPT:
+ case EC_VECTORCATCH:
+ env->exception.syndrome = syn_insn_abort(arm_current_el(env) == 2,
+ 0, 0, 0x22);
+ break;
+ case EC_WATCHPOINT:
+ env->exception.syndrome = syn_set_ec(env->exception.syndrome,
+ EC_DATAABORT);
+ break;
+ case EC_WATCHPOINT_SAME_EL:
+ env->exception.syndrome = syn_set_ec(env->exception.syndrome,
+ EC_DATAABORT_SAME_EL);
+ break;
+ }
arm_cpu_do_interrupt_aarch32_hyp(cs);
return;
}
diff --git a/target/arm/syndrome.h b/target/arm/syndrome.h
index 95454b5b3b..eccb759da6 100644
--- a/target/arm/syndrome.h
+++ b/target/arm/syndrome.h
@@ -25,6 +25,8 @@
#ifndef TARGET_ARM_SYNDROME_H
#define TARGET_ARM_SYNDROME_H
+#include "qemu/bitops.h"
+
/* Valid Syndrome Register EC field values */
enum arm_exception_class {
EC_UNCATEGORIZED = 0x00,
@@ -80,6 +82,7 @@ typedef enum {
SME_ET_InactiveZA,
} SMEExceptionType;
+#define ARM_EL_EC_LENGTH 6
#define ARM_EL_EC_SHIFT 26
#define ARM_EL_IL_SHIFT 25
#define ARM_EL_ISV_SHIFT 24
@@ -91,6 +94,11 @@ static inline uint32_t syn_get_ec(uint32_t syn)
return syn >> ARM_EL_EC_SHIFT;
}
+static inline uint32_t syn_set_ec(uint32_t syn, uint32_t ec)
+{
+ return deposit32(syn, ARM_EL_EC_SHIFT, ARM_EL_EC_LENGTH, ec);
+}
+
/*
* Utility functions for constructing various kinds of syndrome value.
* Note that in general we follow the AArch64 syndrome values; in a
--
2.41.0.windows.1