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-rw-r--r--arch/mips/mti-malta/malta-time.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index a144b89..bc6ac00 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -76,6 +76,21 @@ static void __init estimate_frequencies(void)
unsigned int count, start;
unsigned int giccount = 0, gicstart = 0;
+#if defined (CONFIG_KVM_GUEST) && defined (CONFIG_KVM_HOST_FREQ)
+ unsigned int prid = read_c0_prid() & 0xffff00;
+
+ /*
+ * XXXKYMA: hardwire the CPU frequency to Host Freq/4
+ */
+ count = (CONFIG_KVM_HOST_FREQ * 1000000) >> 3;
+ if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) &&
+ (prid != (PRID_COMP_MIPS | PRID_IMP_25KF)))
+ count *= 2;
+
+ mips_hpt_frequency = count;
+ return;
+#endif
+
local_irq_save(flags);
/* Start counter exactly on falling edge of update flag. */