diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/hppa/cpu.c | 2 | ||||
| -rw-r--r-- | target/hppa/cpu.h | 5 | ||||
| -rw-r--r-- | target/hppa/helper.h | 1 | ||||
| -rw-r--r-- | target/hppa/insns.decode | 1 | ||||
| -rw-r--r-- | target/hppa/int_helper.c | 19 | ||||
| -rw-r--r-- | target/hppa/op_helper.c | 7 | ||||
| -rw-r--r-- | target/hppa/translate.c | 10 |
7 files changed, 42 insertions, 3 deletions
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c index 23eb254..37b763f 100644 --- a/target/hppa/cpu.c +++ b/target/hppa/cpu.c @@ -62,7 +62,7 @@ static void hppa_cpu_synchronize_from_tb(CPUState *cs, static bool hppa_cpu_has_work(CPUState *cs) { - return cs->interrupt_request & CPU_INTERRUPT_HARD; + return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI); } static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info) diff --git a/target/hppa/cpu.h b/target/hppa/cpu.h index 45fd338..93c1195 100644 --- a/target/hppa/cpu.h +++ b/target/hppa/cpu.h @@ -69,6 +69,11 @@ #define EXCP_SYSCALL 30 #define EXCP_SYSCALL_LWS 31 +/* Emulated hardware TOC button */ +#define EXCP_TOC 32 /* TOC = Transfer of control (NMI) */ + +#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3 /* TOC */ + /* Taken from Linux kernel: arch/parisc/include/asm/psw.h */ #define PSW_I 0x00000001 #define PSW_D 0x00000002 diff --git a/target/hppa/helper.h b/target/hppa/helper.h index 0a629ff..fe8a9ce 100644 --- a/target/hppa/helper.h +++ b/target/hppa/helper.h @@ -80,6 +80,7 @@ DEF_HELPER_FLAGS_0(read_interval_timer, TCG_CALL_NO_RWG, tr) #ifndef CONFIG_USER_ONLY DEF_HELPER_1(halt, noreturn, env) DEF_HELPER_1(reset, noreturn, env) +DEF_HELPER_1(getshadowregs, void, env) DEF_HELPER_1(rfi, void, env) DEF_HELPER_1(rfi_r, void, env) DEF_HELPER_FLAGS_2(write_interval_timer, TCG_CALL_NO_RWG, void, env, tr) diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode index d4eefc0..c7a7e99 100644 --- a/target/hppa/insns.decode +++ b/target/hppa/insns.decode @@ -111,6 +111,7 @@ rfi_r 000000 ----- ----- --- 01100101 00000 # They are allocated from the unassigned instruction space. halt 1111 1111 1111 1101 1110 1010 1101 0000 reset 1111 1111 1111 1101 1110 1010 1101 0001 +getshadowregs 1111 1111 1111 1101 1110 1010 1101 0010 #### # Memory Management diff --git a/target/hppa/int_helper.c b/target/hppa/int_helper.c index 13073ae..f599dcc 100644 --- a/target/hppa/int_helper.c +++ b/target/hppa/int_helper.c @@ -23,6 +23,7 @@ #include "cpu.h" #include "exec/helper-proto.h" #include "hw/core/cpu.h" +#include "hw/hppa/hppa_hardware.h" #ifndef CONFIG_USER_ONLY static void eval_interrupt(HPPACPU *cpu) @@ -181,7 +182,14 @@ void hppa_cpu_do_interrupt(CPUState *cs) } /* step 7 */ - env->iaoq_f = env->cr[CR_IVA] + 32 * i; + if (i == EXCP_TOC) { + env->iaoq_f = FIRMWARE_START; + /* help SeaBIOS and provide iaoq_b and iasq_back in shadow regs */ + env->gr[24] = env->cr_back[0]; + env->gr[25] = env->cr_back[1]; + } else { + env->iaoq_f = env->cr[CR_IVA] + 32 * i; + } env->iaoq_b = env->iaoq_f + 4; env->iasq_f = 0; env->iasq_b = 0; @@ -219,6 +227,7 @@ void hppa_cpu_do_interrupt(CPUState *cs) [EXCP_PER_INTERRUPT] = "performance monitor interrupt", [EXCP_SYSCALL] = "syscall", [EXCP_SYSCALL_LWS] = "syscall-lws", + [EXCP_TOC] = "TOC (transfer of control)", }; static int count; const char *name = NULL; @@ -248,6 +257,14 @@ bool hppa_cpu_exec_interrupt(CPUState *cs, int interrupt_request) HPPACPU *cpu = HPPA_CPU(cs); CPUHPPAState *env = &cpu->env; + if (interrupt_request & CPU_INTERRUPT_NMI) { + /* Raise TOC (NMI) interrupt */ + cpu_reset_interrupt(cs, CPU_INTERRUPT_NMI); + cs->exception_index = EXCP_TOC; + hppa_cpu_do_interrupt(cs); + return true; + } + /* If interrupts are requested and enabled, raise them. */ if ((env->psw & PSW_I) && (interrupt_request & CPU_INTERRUPT_HARD)) { cs->exception_index = EXCP_EXT_INTERRUPT; diff --git a/target/hppa/op_helper.c b/target/hppa/op_helper.c index 1b86557..b0dec4e 100644 --- a/target/hppa/op_helper.c +++ b/target/hppa/op_helper.c @@ -694,7 +694,7 @@ void HELPER(rfi)(CPUHPPAState *env) cpu_hppa_put_psw(env, env->cr[CR_IPSW]); } -void HELPER(rfi_r)(CPUHPPAState *env) +void HELPER(getshadowregs)(CPUHPPAState *env) { env->gr[1] = env->shadow[0]; env->gr[8] = env->shadow[1]; @@ -703,6 +703,11 @@ void HELPER(rfi_r)(CPUHPPAState *env) env->gr[17] = env->shadow[4]; env->gr[24] = env->shadow[5]; env->gr[25] = env->shadow[6]; +} + +void HELPER(rfi_r)(CPUHPPAState *env) +{ + helper_getshadowregs(env); helper_rfi(env); } #endif diff --git a/target/hppa/translate.c b/target/hppa/translate.c index c619559..5c0b1eb 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -2393,6 +2393,16 @@ static bool trans_reset(DisasContext *ctx, arg_reset *a) #endif } +static bool trans_getshadowregs(DisasContext *ctx, arg_getshadowregs *a) +{ + CHECK_MOST_PRIVILEGED(EXCP_PRIV_OPR); +#ifndef CONFIG_USER_ONLY + nullify_over(ctx); + gen_helper_getshadowregs(cpu_env); + return nullify_end(ctx); +#endif +} + static bool trans_nop_addrx(DisasContext *ctx, arg_ldst *a) { if (a->m) { |