diff options
| author | Jon Doron <arilou@gmail.com> | 2020-05-29 16:45:40 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-06-01 11:26:11 +0300 |
| commit | f97f5a56f5977311f3833056a73cdbb0ee56cb1e (patch) | |
| tree | 5e25d905951ceb38ac155d5779c1cefece494e9e /arch/x86/include | |
| parent | 22ad0026d0978d4211eb07a2be77f49fb40d86eb (diff) | |
| download | linux-f97f5a56f5977311f3833056a73cdbb0ee56cb1e.tar.xz | |
x86/kvm/hyper-v: Add support for synthetic debugger interface
Add support for Hyper-V synthetic debugger (syndbg) interface.
The syndbg interface is using MSRs to emulate a way to send/recv packets
data.
The debug transport dll (kdvm/kdnet) will identify if Hyper-V is enabled
and if it supports the synthetic debugger interface it will attempt to
use it, instead of trying to initialize a network adapter.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20200529134543.1127440-4-arilou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index b878fcd164ce..58337a25396a 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -863,6 +863,18 @@ struct kvm_apic_map { struct kvm_lapic *phys_map[]; }; +/* Hyper-V synthetic debugger (SynDbg)*/ +struct kvm_hv_syndbg { + struct { + u64 control; + u64 status; + u64 send_page; + u64 recv_page; + u64 pending_page; + } control; + u64 options; +}; + /* Hyper-V emulation context */ struct kvm_hv { struct mutex hv_lock; @@ -886,6 +898,7 @@ struct kvm_hv { atomic_t num_mismatched_vp_indexes; struct hv_partition_assist_pg *hv_pa_pg; + struct kvm_hv_syndbg hv_syndbg; }; enum kvm_irqchip_mode { |