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| author | Peter Maydell <peter.maydell@linaro.org> | 2017-02-28 12:08:16 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-02-28 12:08:16 +0000 |
| commit | 1004102a772744fbb31d8001ade0090be8b02a93 (patch) | |
| tree | 5be3c928f273c1b73f413bb9713f6114fe7cb39f /hw | |
| parent | f797c07507b4af66ae6817390001dbc1036591ef (diff) | |
| download | qemu-1004102a772744fbb31d8001ade0090be8b02a93.zip qemu-1004102a772744fbb31d8001ade0090be8b02a93.tar.gz qemu-1004102a772744fbb31d8001ade0090be8b02a93.tar.bz2 | |
armv7m: Implement reading and writing of PRIGROUP
Add a state field for the v7M PRIGROUP register and implent
reading and writing it. The current NVIC doesn't honour
the values written, but the new version will.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/intc/armv7m_nvic.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c index 09975f3..ce22001 100644 --- a/hw/intc/armv7m_nvic.c +++ b/hw/intc/armv7m_nvic.c @@ -24,6 +24,9 @@ typedef struct NVICState { GICState gic; ARMCPU *cpu; + + uint32_t prigroup; + struct { uint32_t control; uint32_t reload; @@ -223,7 +226,7 @@ static uint32_t nvic_readl(NVICState *s, uint32_t offset) case 0xd08: /* Vector Table Offset. */ return cpu->env.v7m.vecbase; case 0xd0c: /* Application Interrupt/Reset Control. */ - return 0xfa050000; + return 0xfa050000 | (s->prigroup << 8); case 0xd10: /* System Control. */ /* TODO: Implement SLEEPONEXIT. */ return 0; @@ -362,9 +365,7 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value) if (value & 1) { qemu_log_mask(LOG_UNIMP, "AIRCR system reset unimplemented\n"); } - if (value & 0x700) { - qemu_log_mask(LOG_UNIMP, "PRIGROUP unimplemented\n"); - } + s->prigroup = extract32(value, 8, 3); } break; case 0xd10: /* System Control. */ @@ -483,13 +484,14 @@ static const MemoryRegionOps nvic_sysreg_ops = { static const VMStateDescription vmstate_nvic = { .name = "armv7m_nvic", - .version_id = 1, - .minimum_version_id = 1, + .version_id = 2, + .minimum_version_id = 2, .fields = (VMStateField[]) { VMSTATE_UINT32(systick.control, NVICState), VMSTATE_UINT32(systick.reload, NVICState), VMSTATE_INT64(systick.tick, NVICState), VMSTATE_TIMER_PTR(systick.timer, NVICState), + VMSTATE_UINT32(prigroup, NVICState), VMSTATE_END_OF_LIST() } }; |