diff options
| author | Artyom Tarasenko <atar4qemu@googlemail.com> | 2010-01-16 09:06:32 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2010-01-16 09:06:32 +0000 |
| commit | 10760f0fa7c089e45d629d9ad2803c91f2bcb90f (patch) | |
| tree | dc7925f3633b86d5847286ff002bbcf4458c6757 /hw | |
| parent | 694b9309462f07307d16f492961f01271f10c245 (diff) | |
sparc32 do not clear interrupts when masking
Don't clear interrupts on disabling, because
* Sun4M_SystemArchitecture_edited2.pdf doesn't describe
that masking or un-masking IRQ shall clear pending ones.
* Field tests also show that SPARCstation-20 doesn't
clear them.
* The patch makes Solaris 2.5.1/2.6 boot ~1500 times
faster (~20 seconds instead of ~8 hours)
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/slavio_intctl.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/hw/slavio_intctl.c b/hw/slavio_intctl.c index 9aff892f25..b76d3acadd 100644 --- a/hw/slavio_intctl.c +++ b/hw/slavio_intctl.c @@ -185,11 +185,10 @@ static void slavio_intctlm_mem_writel(void *opaque, target_phys_addr_t addr, s->intregm_disabled); slavio_check_interrupts(s, 1); break; - case 3: // set (disable, clear pending) + case 3: // set (disable; doesn't affect pending) // Force clear unused bits val &= MASTER_IRQ_MASK; s->intregm_disabled |= val; - s->intregm_pending &= ~val; slavio_check_interrupts(s, 1); DPRINTF("Disabled master irq mask %x, curmask %x\n", val, s->intregm_disabled); |