Peter Maydell 0c317eb3dd target/arm: Add missing 'return's after calling v7m_exception_taken() ... In do_v7m_exception_exit(), we perform various checks as part of performing the exception return. If one of these checks fails, the architecture requires that we take an appropriate exception on the existing stackframe. We implement this by calling v7m_exception_taken() to set up to take the new exception, and then immediately returning from do_v7m_exception_exit() without proceeding any further with the unstack-and-exception-return process. In a couple of checks that are new in v8.1M, we forgot the "return" statement, with the effect that if bad code in the guest tripped over these checks we would set up to take a UsageFault exception but then blunder on trying to also unstack and return from the original exception, with the probable result that the guest would crash. Add the missing return statements. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210723162146.5167-3-peter.maydell@linaro.org		2021-07-27 10:57:39 +01:00
..
a32-uncond.decode
a32.decode
arch_dump.c
arm_ldst.h
arm-powerctl.c
arm-powerctl.h
cpu64.c	target/arm: Implement MTE3	2021-06-24 14:58:48 +01:00
cpu_tcg.c	target/arm: Implement debug_check_breakpoint	2021-07-21 07:47:04 -10:00
cpu-param.h	linux-user/aarch64: Implement PR_TAGGED_ADDR_ENABLE	2021-02-16 13:06:16 +00:00
cpu-qom.h
cpu.c	target/arm: Implement debug_check_breakpoint	2021-07-21 07:47:04 -10:00
cpu.h	target/arm: Add isar_feature_{aa32, aa64, aa64_sve}_bf16	2021-06-03 16:43:25 +01:00
crypto_helper.c
debug_helper.c	accel/tcg: Remove TranslatorOps.breakpoint_check	2021-07-21 07:47:05 -10:00
gdbstub64.c
gdbstub.c	target/arm: Enforce that M-profile SP low 2 bits are always zero	2021-07-27 10:57:39 +01:00
helper-a64.c	tcg: Rename helper_atomic_*_mmu and provide for user-only	2021-07-21 07:45:38 -10:00
helper-a64.h	target/arm: Merge mte_check1, mte_checkN	2021-04-30 11:16:49 +01:00
helper-mve.h	target/arm: Implement MVE shifts by register	2021-07-02 11:48:38 +01:00
helper-sve.h	target/arm: Implement vector float32 to bfloat16 conversion	2021-06-03 16:43:26 +01:00
helper.c	target/arm: Fix offsets for TTBCR	2021-07-18 10:59:46 +01:00
helper.h	accel/tcg: Remove TranslatorOps.breakpoint_check	2021-07-21 07:47:05 -10:00
idau.h
internals.h	target/arm: Implement debug_check_breakpoint	2021-07-21 07:47:04 -10:00
iwmmxt_helper.c
Kconfig	meson: Introduce target-specific Kconfig	2021-07-09 18:21:34 +02:00
kvm64.c	target/arm: Use acpi_ghes_present() to see if we report ACPI memory errors	2021-06-21 16:49:37 +01:00
kvm_arm.h	hw/arm/virt: KVM: The IPA lower bound is 32	2021-03-12 12:47:11 +00:00
kvm-consts.h
kvm-stub.c
kvm.c	hw/arm/virt: KVM: The IPA lower bound is 32	2021-03-12 12:47:11 +00:00
m_helper.c	target/arm: Add missing 'return's after calling v7m_exception_taken()	2021-07-27 10:57:39 +01:00
m-nocp.decode	target/arm: Don't NOCP fault for FPCXT_NS accesses	2021-06-21 16:49:37 +01:00
machine.c	target/arm: Make FPSCR.LTPSIZE writable for MVE	2021-06-03 16:43:25 +01:00
meson.build	target/arm: Implement MVE VLDR/VSTR (non-widening forms)	2021-06-21 16:49:38 +01:00
monitor.c
mte_helper.c	target/arm: Implement MTE3	2021-06-24 14:58:48 +01:00
mve_helper.c	target/arm: Implement MVE shifts by register	2021-07-02 11:48:38 +01:00
mve.decode	target/arm: Implement MVE VADDLV	2021-07-02 11:48:37 +01:00
neon_helper.c	target/arm: Split out saturating/rounding shifts from neon	2021-05-25 16:01:43 +01:00
neon-dp.decode	target/arm: Implement vector float32 to bfloat16 conversion	2021-06-03 16:43:26 +01:00
neon-ls.decode	target/arm: Remove duplicate 'plus1' function from Neon and SVE decode	2021-07-18 10:59:47 +01:00
neon-shared.decode	target/arm: Remove duplicate 'plus1' function from Neon and SVE decode	2021-07-18 10:59:47 +01:00
op_addsub.h
op_helper.c	target/arm: use raise_exception_ra for stack limit exception	2021-06-03 16:43:25 +01:00
pauth_helper.c
psci.c
sve_helper.c	bitops.h: Provide hswap32(), hswap64(), wswap64() swapping operations	2021-06-16 14:33:52 +01:00
sve.decode	target/arm: Remove duplicate 'plus1' function from Neon and SVE decode	2021-07-18 10:59:47 +01:00
syndrome.h	target/arm: Split out syndrome.h from internals.h	2021-02-16 13:16:18 +00:00
t16.decode
t32.decode	target/arm: Implement MVE shifts by register	2021-07-02 11:48:38 +01:00
tlb_helper.c	target/arm: Set ARMMMUFaultInfo.level in user-only arm_cpu_tlb_fill	2021-03-23 14:07:55 +00:00
trace-events	docs: fix references to docs/devel/tracing.rst	2021-06-02 06:51:09 +02:00
trace.h
translate-a32.h	target/arm: Make VMOV scalar <-> gpreg beatwise for MVE	2021-06-24 14:58:48 +01:00
translate-a64.c	accel/tcg: Remove TranslatorOps.breakpoint_check	2021-07-21 07:47:05 -10:00
translate-a64.h	target/arm: Implement SVE2 XAR	2021-05-25 16:01:44 +01:00
translate-m-nocp.c	target/arm: Handle FPU check for FPCXT_NS insns via vfp_access_check_m()	2021-06-21 16:49:38 +01:00
translate-mve.c	target/arm: Implement MVE VADDLV	2021-07-02 11:48:37 +01:00
translate-neon.c	target/arm: Remove duplicate 'plus1' function from Neon and SVE decode	2021-07-18 10:59:47 +01:00
translate-sve.c	target/arm: Remove duplicate 'plus1' function from Neon and SVE decode	2021-07-18 10:59:47 +01:00
translate-vfp.c	target/arm: Make VMOV scalar <-> gpreg beatwise for MVE	2021-06-24 14:58:48 +01:00
translate.c	target/arm: Enforce that M-profile SP low 2 bits are always zero	2021-07-27 10:57:39 +01:00
translate.h	target/arm: Implement MVE shifts by register	2021-07-02 11:48:38 +01:00
vec_helper.c	target/arm: Move expand_pred_b() data to vec_helper.c	2021-06-16 14:33:52 +01:00
vec_internal.h	target/arm: Move expand_pred_b() data to vec_helper.c	2021-06-16 14:33:52 +01:00
vfp_helper.c	target/arm: Check NaN mode before silencing NaN	2021-07-02 11:48:36 +01:00
vfp-uncond.decode
vfp.decode	target/arm: Don't NOCP fault for FPCXT_NS accesses	2021-06-21 16:49:37 +01:00