diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2011-04-01 15:15:19 +1100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2011-04-01 18:34:55 +0200 |
| commit | 9d52e9079da4f28abd788faf39e64fbf4b305561 (patch) | |
| tree | 421c8f64a44e93fcb48bfe922b2da67fdaed2da4 /hw | |
| parent | cdaee00633cfac7338d8dd0ba3e8766d5bdb1cec (diff) | |
| download | focaccia-qemu-9d52e9079da4f28abd788faf39e64fbf4b305561.tar.gz focaccia-qemu-9d52e9079da4f28abd788faf39e64fbf4b305561.zip | |
Add POWER7 support for ppc
This adds emulation support for the recent POWER7 cpu to qemu. It's far from perfect - it's missing a number of POWER7 features so far, including any support for VSX or decimal floating point instructions. However, it's close enough to boot a kernel with the POWER7 PVR. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ppc.c | 35 | ||||
| -rw-r--r-- | hw/ppc.h | 1 |
2 files changed, 36 insertions, 0 deletions
diff --git a/hw/ppc.c b/hw/ppc.c index b55a84883e..dabb816510 100644 --- a/hw/ppc.c +++ b/hw/ppc.c @@ -247,6 +247,41 @@ void ppc970_irq_init (CPUState *env) env->irq_inputs = (void **)qemu_allocate_irqs(&ppc970_set_irq, env, PPC970_INPUT_NB); } + +/* POWER7 internal IRQ controller */ +static void power7_set_irq (void *opaque, int pin, int level) +{ + CPUState *env = opaque; + int cur_level; + + LOG_IRQ("%s: env %p pin %d level %d\n", __func__, + env, pin, level); + cur_level = (env->irq_input_state >> pin) & 1; + + switch (pin) { + case POWER7_INPUT_INT: + /* Level sensitive - active high */ + LOG_IRQ("%s: set the external IRQ state to %d\n", + __func__, level); + ppc_set_irq(env, PPC_INTERRUPT_EXT, level); + break; + default: + /* Unknown pin - do nothing */ + LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin); + return; + } + if (level) { + env->irq_input_state |= 1 << pin; + } else { + env->irq_input_state &= ~(1 << pin); + } +} + +void ppcPOWER7_irq_init (CPUState *env) +{ + env->irq_inputs = (void **)qemu_allocate_irqs(&power7_set_irq, env, + POWER7_INPUT_NB); +} #endif /* defined(TARGET_PPC64) */ /* PowerPC 40x internal IRQ controller */ diff --git a/hw/ppc.h b/hw/ppc.h index 34f54cf5da..3ccf13479b 100644 --- a/hw/ppc.h +++ b/hw/ppc.h @@ -36,6 +36,7 @@ void ppc40x_irq_init (CPUState *env); void ppce500_irq_init (CPUState *env); void ppc6xx_irq_init (CPUState *env); void ppc970_irq_init (CPUState *env); +void ppcPOWER7_irq_init (CPUState *env); /* PPC machines for OpenBIOS */ enum { |