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kvm: do not force hypervisor flag in guest`s CPUID

Message ID 1429788803-7964-2-git-send-email-yarmak.vladislav@gmail.com
State New
Headers show

Commit Message

Vladislav Yarmak April 23, 2015, 11:33 a.m. UTC 
Do not force hypervisor flag in guests` CPUID - let invoker decide this. It is needed for hidding hypervisor from guest and aimed to run Hyper-V nested in KVM.

Signed-off-by: Vladislav A Yarmak <yarmak.vladislav@gmail.com>

---
 target-i386/kvm.c | 4 ----
 1 file changed, 4 deletions(-)
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Patch

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 41d09e5..63026cc 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -213,10 +213,6 @@  uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
         /* KVM before 2.6.30 misreports the following features */
         ret |= CPUID_MTRR | CPUID_PAT | CPUID_MCE | CPUID_MCA;
     } else if (function == 1 && reg == R_ECX) {
-        /* We can set the hypervisor flag, even if KVM does not return it on
-         * GET_SUPPORTED_CPUID
-         */
-        ret |= CPUID_EXT_HYPERVISOR;
         /* tsc-deadline flag is not returned by GET_SUPPORTED_CPUID, but it
          * can be enabled if the kernel has KVM_CAP_TSC_DEADLINE_TIMER,
          * and the irqchip is in the kernel.