From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52423) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a9sYL-00072v-Kr for qemu-devel@nongnu.org; Fri, 18 Dec 2015 05:46:26 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a9sYI-0008N9-FI for qemu-devel@nongnu.org; Fri, 18 Dec 2015 05:46:25 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:46737) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a9sYI-0008Mj-AE for qemu-devel@nongnu.org; Fri, 18 Dec 2015 05:46:22 -0500 From: James Hogan Date: Fri, 18 Dec 2015 10:46:01 +0000 Message-ID: <1450435564-30720-5-git-send-email-james.hogan@imgtec.com> In-Reply-To: <1450435564-30720-1-git-send-email-james.hogan@imgtec.com> References: <1450435564-30720-1-git-send-email-james.hogan@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH v4 4/7] mips/kvm: Support unsigned KVM registers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, Paolo Bonzini Cc: James Hogan , Leon Alrae , Aurelien Jarno , kvm@vger.kernel.org Add KVM register access functions for the uint32_t type. This is required for FP and MSA control registers, which are represented as unsigned 32-bit integers. Signed-off-by: James Hogan Cc: Paolo Bonzini Cc: Leon Alrae Cc: Aurelien Jarno --- Changes in v3: - Fix big endian (the pointer passed to the kernel must be for the actual 32-bit value, not a temporary 64-bit value, otherwise on big endian systems the kernel will only interpret the upper half). --- target-mips/kvm.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/target-mips/kvm.c b/target-mips/kvm.c index b777a5e93fb1..a11095f273f0 100644 --- a/target-mips/kvm.c +++ b/target-mips/kvm.c @@ -248,6 +248,17 @@ static inline int kvm_mips_put_one_reg(CPUState *cs, uint64_t reg_id, return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, &cp0reg); } +static inline int kvm_mips_put_one_ureg(CPUState *cs, uint64_t reg_id, + uint32_t *addr) +{ + struct kvm_one_reg cp0reg = { + .id = reg_id, + .addr = (uintptr_t)addr + }; + + return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, &cp0reg); +} + static inline int kvm_mips_put_one_ulreg(CPUState *cs, uint64_t reg_id, target_ulong *addr) { @@ -282,6 +293,17 @@ static inline int kvm_mips_get_one_reg(CPUState *cs, uint64_t reg_id, return kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, &cp0reg); } +static inline int kvm_mips_get_one_ureg(CPUState *cs, uint64_t reg_id, + uint32_t *addr) +{ + struct kvm_one_reg cp0reg = { + .id = reg_id, + .addr = (uintptr_t)addr + }; + + return kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, &cp0reg); +} + static inline int kvm_mips_get_one_ulreg(CPUState *cs, uint64 reg_id, target_ulong *addr) { -- 2.4.10