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[Qemu-devel] [PATCH 5/5] target-s390x: implement STPT helper
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 5/5] target-s390x: implement STPT helper |
Date: |
Mon, 18 May 2015 23:42:29 +0200 |
Save the timer target value in the SPT helper, so that the STPT helper
can compute the remaining time.
This allow the Linux kernel to correctly do time accounting.
Cc: Alexander Graf <address@hidden>
Cc: Richard Henderson <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-s390x/misc_helper.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/target-s390x/misc_helper.c b/target-s390x/misc_helper.c
index 57aee95..3ec7268 100644
--- a/target-s390x/misc_helper.c
+++ b/target-s390x/misc_helper.c
@@ -313,14 +313,15 @@ void HELPER(spt)(CPUS390XState *env, uint64_t time)
/* nanoseconds */
time = tod2time(time);
- timer_mod(env->cpu_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + time);
+ env->cputm = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + time;
+
+ timer_mod(env->cpu_timer, env->cputm);
}
/* Store CPU Timer */
uint64_t HELPER(stpt)(CPUS390XState *env)
{
- /* XXX implement */
- return 0;
+ return time2tod(env->cputm - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL));
}
/* Store System Information */
--
2.1.4
- [Qemu-devel] [PATCH 0/5] Clean and improve time related helpers, Aurelien Jarno, 2015/05/18
- [Qemu-devel] [PATCH 2/5] target-s390x: simplify SCKC helper, Aurelien Jarno, 2015/05/18
- [Qemu-devel] [PATCH 3/5] target-s390x: streamline STCK helper, Aurelien Jarno, 2015/05/18
- [Qemu-devel] [PATCH 4/5] target-s390x: implement STCKC helper, Aurelien Jarno, 2015/05/18
- [Qemu-devel] [PATCH 1/5] target-s390x: add a tod2time function, Aurelien Jarno, 2015/05/18
- [Qemu-devel] [PATCH 5/5] target-s390x: implement STPT helper,
Aurelien Jarno <=
- Re: [Qemu-devel] [PATCH 0/5] Clean and improve time related helpers, Alexander Graf, 2015/05/25