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authorPeter Maydell <peter.maydell@linaro.org>2017-02-28 12:08:16 +0000
committerPeter Maydell <peter.maydell@linaro.org>2017-02-28 12:08:16 +0000
commit1004102a772744fbb31d8001ade0090be8b02a93 (patch)
tree5be3c928f273c1b73f413bb9713f6114fe7cb39f
parentf797c07507b4af66ae6817390001dbc1036591ef (diff)
downloadqemu-arm-1004102a772744fbb31d8001ade0090be8b02a93.tar.gz
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>
-rw-r--r--hw/intc/armv7m_nvic.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 09975f3c62..ce22001b6c 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()
}
};