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Diffstat (limited to 'hw')
-rw-r--r--hw/hpet.c6
-rw-r--r--hw/hpet_emul.h2
2 files changed, 6 insertions, 2 deletions
diff --git a/hw/hpet.c b/hw/hpet.c
index 5c1aca2530..7df2d0515a 100644
--- a/hw/hpet.c
+++ b/hw/hpet.c
@@ -388,7 +388,8 @@ static void hpet_ram_writel(void *opaque, target_phys_addr_t addr,
switch ((addr - 0x100) % 0x20) {
case HPET_TN_CFG:
dprintf("qemu: hpet_ram_writel HPET_TN_CFG\n");
- timer->config = hpet_fixup_reg(new_val, old_val, 0x3e4e);
+ timer->config = hpet_fixup_reg(new_val, old_val,
+ HPET_TN_CFG_WRITE_MASK);
if (new_val & HPET_TN_32BIT) {
timer->cmp = (uint32_t)timer->cmp;
timer->period = (uint32_t)timer->period;
@@ -456,7 +457,8 @@ static void hpet_ram_writel(void *opaque, target_phys_addr_t addr,
case HPET_ID:
return;
case HPET_CFG:
- s->config = hpet_fixup_reg(new_val, old_val, 0x3);
+ s->config = hpet_fixup_reg(new_val, old_val,
+ HPET_CFG_WRITE_MASK);
if (activating_bit(old_val, new_val, HPET_CFG_ENABLE)) {
/* Enable main counter and interrupt generation. */
s->hpet_offset = ticks_to_ns(s->hpet_counter)
diff --git a/hw/hpet_emul.h b/hw/hpet_emul.h
index fbe7a44531..60893b65d0 100644
--- a/hw/hpet_emul.h
+++ b/hw/hpet_emul.h
@@ -36,6 +36,7 @@
#define HPET_TN_CFG 0x000
#define HPET_TN_CMP 0x008
#define HPET_TN_ROUTE 0x010
+#define HPET_CFG_WRITE_MASK 0x3
#define HPET_TN_ENABLE 0x004
@@ -45,6 +46,7 @@
#define HPET_TN_SETVAL 0x040
#define HPET_TN_32BIT 0x100
#define HPET_TN_INT_ROUTE_MASK 0x3e00
+#define HPET_TN_CFG_WRITE_MASK 0x3f4e
#define HPET_TN_INT_ROUTE_SHIFT 9
#define HPET_TN_INT_ROUTE_CAP_SHIFT 32
#define HPET_TN_CFG_BITS_READONLY_OR_RESERVED 0xffff80b1U