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KVM: x86: Replace call-back set_tsc_khz() with a common function
Both VMX and SVM propagate virtual_tsc_khz in the same way, so this patch removes the call-back set_tsc_khz() and replaces it with a common function. Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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5 changed files with 70 additions and 59 deletions
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@ -214,4 +214,33 @@ static inline u64 mul_u64_u64_shr(u64 a, u64 b, unsigned int shift)
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#endif
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#ifndef mul_u64_u32_div
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static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor)
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{
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union {
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u64 ll;
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struct {
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#ifdef __BIG_ENDIAN
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u32 high, low;
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#else
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u32 low, high;
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#endif
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} l;
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} u, rl, rh;
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u.ll = a;
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rl.ll = (u64)u.l.low * mul;
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rh.ll = (u64)u.l.high * mul + rl.l.high;
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/* Bits 32-63 of the result will be in rh.l.low. */
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rl.l.high = do_div(rh.ll, divisor);
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/* Bits 0-31 of the result will be in rl.l.low. */
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do_div(rl.ll, divisor);
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rl.l.high = rh.l.low;
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return rl.ll;
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}
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#endif /* mul_u64_u32_div */
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#endif /* _LINUX_MATH64_H */
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