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| author | David Hildenbrand | 2017-09-28 22:37:02 +0200 |
|---|---|---|
| committer | Cornelia Huck | 2017-10-20 13:32:10 +0200 |
| commit | b1ab5f6068c059b1357209c1dbeaac772184977d (patch) | |
| tree | e919bb321ea7e50b91ace07b7030d1fd58dac20e /target/s390x/cpu.h | |
| parent | s390x/tcg: implement SIGP CONDITIONAL EMERGENCY SIGNAL (diff) | |
| download | qemu-b1ab5f6068c059b1357209c1dbeaac772184977d.tar.gz qemu-b1ab5f6068c059b1357209c1dbeaac772184977d.tar.xz qemu-b1ab5f6068c059b1357209c1dbeaac772184977d.zip | |
s390x/tcg: implement STOP and RESET interrupts for TCG
Implement them like KVM implements/handles them. Both can only be
triggered via SIGP instructions. RESET has (almost) the lowest priority if
the CPU is running, and the highest if the CPU is STOPPED. This is handled
in SIGP code already. On delivery, we only have to care about the
"CPU running" scenario.
STOP is defined to be delivered after all other interrupts have been
delivered. Therefore it has the actual lowest priority.
As both can wake up a CPU if sleeping, indicate them correctly to
external code (e.g. cpu_has_work()).
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170928203708.9376-25-david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/cpu.h')
| -rw-r--r-- | target/s390x/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 7f4f03f410..b684502900 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -400,6 +400,8 @@ static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, #define EXCP_EXT 1 /* external interrupt */ #define EXCP_SVC 2 /* supervisor call (syscall) */ #define EXCP_PGM 3 /* program interruption */ +#define EXCP_RESTART 4 /* restart interrupt */ +#define EXCP_STOP 5 /* stop interrupt */ #define EXCP_IO 7 /* I/O interrupt */ #define EXCP_MCHK 8 /* machine check */ @@ -410,6 +412,8 @@ static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4) #define INTERRUPT_EXTERNAL_CALL (1 << 5) #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6) +#define INTERRUPT_RESTART (1 << 7) +#define INTERRUPT_STOP (1 << 8) /* Program Status Word. */ #define S390_PSWM_REGNUM 0 |