From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58142) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZubzM-0000rq-24 for qemu-devel@nongnu.org; Fri, 06 Nov 2015 03:03:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZubzL-0000BE-3W for qemu-devel@nongnu.org; Fri, 06 Nov 2015 03:03:12 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40862) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZubzK-0000B7-Ui for qemu-devel@nongnu.org; Fri, 06 Nov 2015 03:03:11 -0500 From: Jason Wang Date: Fri, 6 Nov 2015 16:02:46 +0800 Message-Id: <1446796969-8049-4-git-send-email-jasowang@redhat.com> In-Reply-To: <1446796969-8049-1-git-send-email-jasowang@redhat.com> References: <1446796969-8049-1-git-send-email-jasowang@redhat.com> Subject: [Qemu-devel] [PATCH V3 3/6] KVM: add support for any length io eventfd List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: mst@redhat.com, qemu-devel@nongnu.org Cc: cornelia.huck@de.ibm.com, Jason Wang Signed-off-by: Jason Wang --- include/sysemu/kvm.h | 8 ++++++++ kvm-all.c | 4 ++++ kvm-stub.c | 1 + 3 files changed, 13 insertions(+) diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index 4ac6176..b31f325 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -53,6 +53,7 @@ extern bool kvm_gsi_routing_allowed; extern bool kvm_gsi_direct_mapping; extern bool kvm_readonly_mem_allowed; extern bool kvm_direct_msi_allowed; +extern bool kvm_ioeventfd_any_length_allowed; #if defined CONFIG_KVM || !defined NEED_CPU_H #define kvm_enabled() (kvm_allowed) @@ -153,6 +154,12 @@ extern bool kvm_direct_msi_allowed; */ #define kvm_direct_msi_enabled() (kvm_direct_msi_allowed) +/** + * kvm_ioeventfd_any_length_enabled: + * Returns: true if KVM allows any length io eventfd. + */ +#define kvm_ioeventfd_any_length_enabled() (kvm_ioeventfd_any_length_allowed) + #else #define kvm_enabled() (0) #define kvm_irqchip_in_kernel() (false) @@ -166,6 +173,7 @@ extern bool kvm_direct_msi_allowed; #define kvm_gsi_direct_mapping() (false) #define kvm_readonly_mem_enabled() (false) #define kvm_direct_msi_enabled() (false) +#define kvm_ioeventfd_any_length_enabled() (false) #endif struct kvm_run; diff --git a/kvm-all.c b/kvm-all.c index 1bc1273..f4e2cf0 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -109,6 +109,7 @@ bool kvm_allowed; bool kvm_readonly_mem_allowed; bool kvm_vm_attributes_allowed; bool kvm_direct_msi_allowed; +bool kvm_ioeventfd_any_length_allowed; static const KVMCapabilityInfo kvm_required_capabilites[] = { KVM_CAP_INFO(USER_MEMORY), @@ -1612,6 +1613,9 @@ static int kvm_init(MachineState *ms) kvm_vm_attributes_allowed = (kvm_check_extension(s, KVM_CAP_VM_ATTRIBUTES) > 0); + kvm_ioeventfd_any_length_allowed = + (kvm_check_extension(s, KVM_CAP_IOEVENTFD_ANY_LENGTH) > 0); + ret = kvm_arch_init(ms, s); if (ret < 0) { goto err; diff --git a/kvm-stub.c b/kvm-stub.c index a5051f7..dc97a5e 100644 --- a/kvm-stub.c +++ b/kvm-stub.c @@ -30,6 +30,7 @@ bool kvm_gsi_routing_allowed; bool kvm_gsi_direct_mapping; bool kvm_allowed; bool kvm_readonly_mem_allowed; +bool kvm_ioeventfd_any_length_allowed; int kvm_init_vcpu(CPUState *cpu) { -- 2.1.4