summaryrefslogtreecommitdiff
path: root/hw
diff options
context:
space:
mode:
authorJim Somerville <Jim.Somerville@windriver.com>2017-09-29 12:00:19 -0400
committerMichael Roth <mdroth@linux.vnet.ibm.com>2017-12-04 20:42:20 -0600
commit26914ce48d9a67d49b88c54c78cb5bee461b958b (patch)
tree604377d4ca445b8cf34ed47764c279b15875fc9e /hw
parent49958d37e7fcacb71512c781d21de2bb69e1c16b (diff)
downloadqemu-26914ce48d9a67d49b88c54c78cb5bee461b958b.tar.gz
kvmclock: use the updated system_timer_msr
Fixes e2b6c17 (kvmclock: update system_time_msr address forcibly) which makes a call to get the latest value of the address stored in system_timer_msr, but then uses the old address anyway. Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com> Message-Id: <59b67db0bd15a46ab47c3aa657c81a4c11f168ea.1506702472.git.Jim.Somerville@windriver.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> (cherry picked from commit 346b1215b1e9f7cc6d8fe9fb6f3c2778b890afb6) Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/i386/kvm/clock.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/i386/kvm/clock.c b/hw/i386/kvm/clock.c
index 363d1b5743..a31d8ff240 100644
--- a/hw/i386/kvm/clock.c
+++ b/hw/i386/kvm/clock.c
@@ -62,7 +62,7 @@ static uint64_t kvmclock_current_nsec(KVMClockState *s)
{
CPUState *cpu = first_cpu;
CPUX86State *env = cpu->env_ptr;
- hwaddr kvmclock_struct_pa = env->system_time_msr & ~1ULL;
+ hwaddr kvmclock_struct_pa;
uint64_t migration_tsc = env->tsc;
struct pvclock_vcpu_time_info time;
uint64_t delta;
@@ -77,6 +77,7 @@ static uint64_t kvmclock_current_nsec(KVMClockState *s)
return 0;
}
+ kvmclock_struct_pa = env->system_time_msr & ~1ULL;
cpu_physical_memory_read(kvmclock_struct_pa, &time, sizeof(time));
assert(time.tsc_timestamp <= migration_tsc);