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d72bc7f6f8
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Ladi Prosek d72bc7f6f8 i386/kvm: advertise Hyper-V frequency MSRs 
As of kernel commit eb82feea59d6 ("KVM: hyperv: support HV_X64_MSR_TSC_FREQUENCY
and HV_X64_MSR_APIC_FREQUENCY"), KVM supports two new MSRs which are required
for nested Hyper-V to read timestamps with RDTSC + TSC page.

This commit makes QEMU advertise the MSRs with CPUID.40000003H:EAX[11] and
CPUID.40000003H:EDX[8] as specified in the Hyper-V TLFS and experimentally
verified on a Hyper-V host. The feature is enabled with the existing hv-time CPU
flag, and only if the TSC frequency is stable across migrations and known.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170807085703.32267-5-lprosek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-19 14:09:33 +02:00
..
alpha target/alpha: Switch to do_transaction_failed() hook 2017-09-07 11:15:55 -07:00
arm target/arm: Avoid an extra temporary for store_exclusive 2017-09-14 18:43:18 +01:00
cris target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
hppa target/hppa: Convert to TranslatorOps 2017-09-07 11:23:13 -07:00
i386 i386/kvm: advertise Hyper-V frequency MSRs 2017-09-19 14:09:33 +02:00
lm32 target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
m68k target/m68k: Switch fpu_rom from make_floatx80() to make_floatx80_init() 2017-09-10 18:07:40 +02:00
microblaze target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
mips target/mips: Fix RDHWR CC with icount 2017-08-02 22:18:13 +01:00
moxie moxie: replace cpu_moxie_init() with cpu_generic_init() 2017-09-01 11:54:25 -03:00
nios2 target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
openrisc target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
ppc ppc/kvm: use kvm_vm_check_extension() in kvmppc_is_pr() 2017-09-15 10:29:48 +10:00
s390x target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
sh4 sh4: replace cpu_sh4_init() with cpu_generic_init() 2017-09-01 11:54:24 -03:00
sparc sparc: Fix typedef clash 2017-09-14 15:00:41 +01:00
tilegx tilegx: replace cpu_tilegx_init() with cpu_generic_init() 2017-09-01 11:54:24 -03:00
tricore tricore: replace cpu_tricore_init() with cpu_generic_init() 2017-09-01 11:54:24 -03:00
unicore32 target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00
xtensa target: [tcg] Use a generic enum for DISAS_ values 2017-09-06 08:06:47 -07:00