motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 00:33:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/arm: Implement gdbstub pauth extension

Browse source 
The extension is primarily defined by the Linux kernel NT_ARM_PAC_MASK
ptrace register set.

The original gdb feature consists of two masks, data and code, which are
used to mask out the authentication code within a pointer.  Following
discussion with Luis Machado, add two more masks in order to support
pointers within the high half of the address space (i.e. TTBR1 vs TTBR0).

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1105
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230227213329.793795-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-02-27 11:33:26 -10:00 • committed by Peter Maydell
parent abf1f1b03a
commit e995d5cce4
7 changed files with 59 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

2
target/arm/internals.h
View file

@ -1349,6 +1349,8 @@ int aarch64_gdb_get_sve_reg(CPUARMState *env, GByteArray *buf, int reg);
int aarch64_gdb_set_sve_reg(CPUARMState *env, uint8_t *buf, int reg);
int aarch64_gdb_get_fpu_reg(CPUARMState *env, GByteArray *buf, int reg);
int aarch64_gdb_set_fpu_reg(CPUARMState *env, uint8_t *buf, int reg);
int aarch64_gdb_get_pauth_reg(CPUARMState *env, GByteArray *buf, int reg);
int aarch64_gdb_set_pauth_reg(CPUARMState *env, uint8_t *buf, int reg);
void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp);
void arm_cpu_sme_finalize(ARMCPU *cpu, Error **errp);
void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp);