diff options
Diffstat (limited to 'target/arm/cpu.c')
| -rw-r--r-- | target/arm/cpu.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 5e95167..45cb6fd 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -33,7 +33,6 @@ #endif /* CONFIG_TCG */ #include "internals.h" #include "cpu-features.h" -#include "exec/exec-all.h" #include "exec/target_page.h" #include "hw/qdev-properties.h" #if !defined(CONFIG_USER_ONLY) @@ -2672,7 +2671,31 @@ static const char *arm_gdb_get_core_xml_file(CPUState *cs) return "arm-core.xml"; } -#ifndef CONFIG_USER_ONLY +#ifdef CONFIG_USER_ONLY +/** + * aarch64_untagged_addr: + * + * Remove any address tag from @x. This is explicitly related to the + * linux syscall TIF_TAGGED_ADDR setting, not TBI in general. + * + * There should be a better place to put this, but we need this in + * include/exec/cpu_ldst.h, and not some place linux-user specific. + * + * Note that arm-*-user will never set tagged_addr_enable. + */ +static vaddr aarch64_untagged_addr(CPUState *cs, vaddr x) +{ + CPUARMState *env = cpu_env(cs); + if (env->tagged_addr_enable) { + /* + * TBI is enabled for userspace but not kernelspace addresses. + * Only clear the tag if bit 55 is clear. + */ + x &= sextract64(x, 0, 56); + } + return x; +} +#else #include "hw/core/sysemu-cpu-ops.h" static const struct SysemuCPUOps arm_sysemu_ops = { @@ -2694,6 +2717,7 @@ static const TCGCPUOps arm_tcg_ops = { .initialize = arm_translate_init, .translate_code = arm_translate_code, + .get_tb_cpu_state = arm_get_tb_cpu_state, .synchronize_from_tb = arm_cpu_synchronize_from_tb, .debug_excp_handler = arm_debug_excp_handler, .restore_state_to_opc = arm_restore_state_to_opc, @@ -2702,10 +2726,12 @@ static const TCGCPUOps arm_tcg_ops = { #ifdef CONFIG_USER_ONLY .record_sigsegv = arm_cpu_record_sigsegv, .record_sigbus = arm_cpu_record_sigbus, + .untagged_addr = aarch64_untagged_addr, #else .tlb_fill_align = arm_cpu_tlb_fill_align, .cpu_exec_interrupt = arm_cpu_exec_interrupt, .cpu_exec_halt = arm_cpu_exec_halt, + .cpu_exec_reset = cpu_reset, .do_interrupt = arm_cpu_do_interrupt, .do_transaction_failed = arm_cpu_do_transaction_failed, .do_unaligned_access = arm_cpu_do_unaligned_access, |