From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41369) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VMUG4-0006em-6j for qemu-devel@nongnu.org; Wed, 18 Sep 2013 22:46:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VMUFu-0000UZ-5t for qemu-devel@nongnu.org; Wed, 18 Sep 2013 22:46:20 -0400 Received: from e23smtp03.au.ibm.com ([202.81.31.145]:48686) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VMUFt-0000SV-Eg for qemu-devel@nongnu.org; Wed, 18 Sep 2013 22:46:10 -0400 Received: from /spool/local by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 19 Sep 2013 12:46:00 +1000 Received: from d23relay04.au.ibm.com (d23relay04.au.ibm.com [9.190.234.120]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id ECCBD2BB0054 for ; Thu, 19 Sep 2013 12:45:57 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay04.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r8J2TI8E8388874 for ; Thu, 19 Sep 2013 12:29:25 +1000 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id r8J2jnFl021870 for ; Thu, 19 Sep 2013 12:45:50 +1000 From: Alexey Kardashevskiy Date: Thu, 19 Sep 2013 12:45:48 +1000 Message-Id: <1379558748-13808-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v3] kvm: add set_one_reg/get_one_reg helpers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexey Kardashevskiy , Peter Maydell , Paolo Bonzini This adds QEMU wrappers for KVM_SET_ONE_REG/KVM_GET_ONE_REG ioctls. Signed-off-by: Alexey Kardashevskiy --- Changes: v3: * changed comments v2: * added Doc Comments * removed error_print --- include/sysemu/kvm.h | 21 +++++++++++++++++++++ kvm-all.c | 18 ++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index c7bc07b..9080ffe 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -319,4 +319,25 @@ int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq); void kvm_pc_gsi_handler(void *opaque, int n, int level); void kvm_pc_setup_irq_routing(bool pci_enabled); void kvm_init_irq_routing(KVMState *s); + +/** + * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl + * @id: The register ID + * @addr: The pointer to a value must point to a variable of the correct + * type/size for the register being accessed. + * + * Returns: 0 on success, or a negative errno on failure. + */ +int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr); + +/** + * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl + * @id: The register ID + * @addr: The pointer to a value must point to a variable of the correct + * type/size for the register being accessed. + * + * Returns: 0 on success, or a negative errno on failure. + */ +int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr); + #endif diff --git a/kvm-all.c b/kvm-all.c index ded7fc8..cdc32ec 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -2049,3 +2049,21 @@ int kvm_on_sigbus(int code, void *addr) { return kvm_arch_on_sigbus(code, addr); } + +int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr) +{ + struct kvm_one_reg reg = { + .id = id, + .addr = (uintptr_t)addr, + }; + return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); +} + +int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr) +{ + struct kvm_one_reg reg = { + .id = id, + .addr = (uintptr_t)addr, + }; + return kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); +} -- 1.8.4.rc4