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author | David Hildenbrand | 2018-06-27 15:44:06 +0200 |
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committer | Cornelia Huck | 2018-07-02 10:37:38 +0200 |
commit | 7de3b1cdc67dcb572c1761c2051252e91a438b22 (patch) | |
tree | 0c3045416a75bd11ecc4eac3c2743bea454b1cb1 /target/s390x/internal.h | |
parent | s390x/tcg: drop tod_basetime (diff) | |
download | qemu-7de3b1cdc67dcb572c1761c2051252e91a438b22.tar.gz qemu-7de3b1cdc67dcb572c1761c2051252e91a438b22.tar.xz qemu-7de3b1cdc67dcb572c1761c2051252e91a438b22.zip |
s390x/tcg: properly implement the TOD
Right now, each CPU has its own TOD. Especially, the TOD will differ
based on creation time of a CPU - e.g. when hotplugging a CPU the times
will differ quite a lot, resulting in stall warnings in the guest.
Let's use a single TOD by implementing our new TOD device. Prepare it
for TOD-clock epoch extension.
Most importantly, whenever we set the TOD, we have to update the CKC
timer.
Introduce "tcg_s390x.h" just like "kvm_s390x.h" for tcg specific
function declarations that should not go into cpu.h.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20180627134410.4901-6-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/internal.h')
-rw-r--r-- | target/s390x/internal.h | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/target/s390x/internal.h b/target/s390x/internal.h index 6cf63340bf..f2a771e2b4 100644 --- a/target/s390x/internal.h +++ b/target/s390x/internal.h @@ -237,22 +237,6 @@ enum cc_op { CC_OP_MAX }; -/* The value of the TOD clock for 1.1.1970. */ -#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL - -/* Converts ns to s390's clock format */ -static inline uint64_t time2tod(uint64_t ns) -{ - return (ns << 9) / 125 + (((ns & 0xff10000000000000ull) / 125) << 9); - -} - -/* Converts s390's clock format to ns */ -static inline uint64_t tod2time(uint64_t t) -{ - return ((t >> 9) * 125) + (((t & 0x1ff) * 125) >> 9); -} - static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb, uint8_t *ar) { |