From aa6bb5fad58d049c6ea97448d4caba4499d60634 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Wed, 25 May 2022 13:59:47 +0200 Subject: i386: Hyper-V Support extended GVA ranges for TLB flush hypercalls KVM kind of supported "extended GVA ranges" (up to 4095 additional GFNs per hypercall) since the implementation of Hyper-V PV TLB flush feature (Linux-4.18) as regardless of the request, full TLB flush was always performed. "Extended GVA ranges for TLB flush hypercalls" feature bit wasn't exposed then. Now, as KVM gains support for fine-grained TLB flush handling, exposing this feature starts making sense. Signed-off-by: Vitaly Kuznetsov Message-Id: <20220525115949.1294004-5-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini --- target/i386/kvm/hyperv-proto.h | 1 + 1 file changed, 1 insertion(+) (limited to 'target/i386/kvm/hyperv-proto.h') diff --git a/target/i386/kvm/hyperv-proto.h b/target/i386/kvm/hyperv-proto.h index f5f16474fa..c7854ed6d3 100644 --- a/target/i386/kvm/hyperv-proto.h +++ b/target/i386/kvm/hyperv-proto.h @@ -59,6 +59,7 @@ #define HV_FREQUENCY_MSRS_AVAILABLE (1u << 8) #define HV_GUEST_CRASH_MSR_AVAILABLE (1u << 10) #define HV_FEATURE_DEBUG_MSRS_AVAILABLE (1u << 11) +#define HV_EXT_GVA_RANGES_FLUSH_AVAILABLE (1u << 14) #define HV_STIMER_DIRECT_MODE_AVAILABLE (1u << 19) /* -- cgit v1.2.3