Messages in this thread Patch in this message | | | From | Prarit Bhargava <> | Subject | [PATCH] kvm, Add x86_hyper_kvm to complete detect_hypervisor_platform check | Date | Wed, 27 Jun 2012 17:42:18 -0400 |
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While debugging I noticed that unlike all the other hypervisor code in the kernel, kvm does not have an entry for x86_hyper which is used in detect_hypervisor_platform(), and results in a nice message about the hypervisor being used. This is only really a stub function and it makes kvm more consistent with the other hypervisors (and it makes debugging a little easier).
Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Alex Williamson <alex.williamson@redhat.com> --- arch/x86/include/asm/hypervisor.h | 1 + arch/x86/kernel/cpu/hypervisor.c | 1 + arch/x86/kernel/kvm.c | 6 ++++++ 3 files changed, 8 insertions(+)
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h index 7a15153..b518c75 100644 --- a/arch/x86/include/asm/hypervisor.h +++ b/arch/x86/include/asm/hypervisor.h @@ -49,6 +49,7 @@ extern const struct hypervisor_x86 *x86_hyper; extern const struct hypervisor_x86 x86_hyper_vmware; extern const struct hypervisor_x86 x86_hyper_ms_hyperv; extern const struct hypervisor_x86 x86_hyper_xen_hvm; +extern const struct hypervisor_x86 x86_hyper_kvm; static inline bool hypervisor_x2apic_available(void) { diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c index 755f64f..6d6dd7a 100644 --- a/arch/x86/kernel/cpu/hypervisor.c +++ b/arch/x86/kernel/cpu/hypervisor.c @@ -37,6 +37,7 @@ static const __initconst struct hypervisor_x86 * const hypervisors[] = #endif &x86_hyper_vmware, &x86_hyper_ms_hyperv, + &x86_hyper_kvm, }; const struct hypervisor_x86 *x86_hyper; diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index e554e5a..0a38b68 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -39,6 +39,7 @@ #include <asm/desc.h> #include <asm/tlbflush.h> #include <asm/idle.h> +#include <asm/hypervisor.h> static int kvmapf = 1; @@ -432,6 +433,11 @@ void __init kvm_guest_init(void) #endif } +const struct hypervisor_x86 x86_hyper_kvm __refconst = { + .name = "KVM", +}; +EXPORT_SYMBOL(x86_hyper_kvm); + static __init int activate_jump_labels(void) { if (has_steal_clock) { -- 1.7.9.3
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