From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Hogan Subject: [PATCH v5 4/7] mips/kvm: Support unsigned KVM registers Date: Wed, 3 Feb 2016 17:16:50 +0000 Message-ID: <1454519813-18797-5-git-send-email-james.hogan@imgtec.com> References: <1454519813-18797-1-git-send-email-james.hogan@imgtec.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Paolo Bonzini , , Aurelien Jarno , James Hogan To: , Leon Alrae Return-path: Received: from mailapp01.imgtec.com ([195.59.15.196]:32815 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933775AbcBCRRO (ORCPT ); Wed, 3 Feb 2016 12:17:14 -0500 In-Reply-To: <1454519813-18797-1-git-send-email-james.hogan@imgtec.com> Sender: kvm-owner@vger.kernel.org List-ID: 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 57cde9dd4df6..abdd6b66256c 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_t reg_id, target_ulong *addr) { -- 2.4.10