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[213.175.37.10]) by smtp.gmail.com with ESMTPSA id i204sm4499498wma.44.2020.02.04.07.44.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Feb 2020 07:44:24 -0800 (PST) From: Vitaly Kuznetsov To: Eric Auger Cc: thuth@redhat.com, drjones@redhat.com, wei.huang2@amd.com, eric.auger.pro@gmail.com, eric.auger@redhat.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, pbonzini@redhat.com Subject: Re: [PATCH v3 1/3] selftests: KVM: Replace get_gdt/idt_base() by get_gdt/idt() In-Reply-To: <20200204150040.2465-2-eric.auger@redhat.com> References: <20200204150040.2465-1-eric.auger@redhat.com> <20200204150040.2465-2-eric.auger@redhat.com> Date: Tue, 04 Feb 2020 16:44:23 +0100 Message-ID: <87r1zamk6g.fsf@vitty.brq.redhat.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Eric Auger writes: > get_gdt_base() and get_idt_base() only return the base address > of the descriptor tables. Soon we will need to get the size as well. > Change the prototype of those functions so that they return > the whole desc_ptr struct instead of the address field. > > Signed-off-by: Eric Auger > --- > tools/testing/selftests/kvm/include/x86_64/processor.h | 8 ++++---- > tools/testing/selftests/kvm/lib/x86_64/vmx.c | 6 +++--- > 2 files changed, 7 insertions(+), 7 deletions(-) > > diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h > index aa6451b3f740..6f7fffaea2e8 100644 > --- a/tools/testing/selftests/kvm/include/x86_64/processor.h > +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h > @@ -220,20 +220,20 @@ static inline void set_cr4(uint64_t val) > __asm__ __volatile__("mov %0, %%cr4" : : "r" (val) : "memory"); > } > > -static inline uint64_t get_gdt_base(void) > +static inline struct desc_ptr get_gdt(void) > { > struct desc_ptr gdt; > __asm__ __volatile__("sgdt %[gdt]" > : /* output */ [gdt]"=m"(gdt)); > - return gdt.address; > + return gdt; > } > > -static inline uint64_t get_idt_base(void) > +static inline struct desc_ptr get_idt(void) > { > struct desc_ptr idt; > __asm__ __volatile__("sidt %[idt]" > : /* output */ [idt]"=m"(idt)); > - return idt.address; > + return idt; > } > > #define SET_XMM(__var, __xmm) \ > diff --git a/tools/testing/selftests/kvm/lib/x86_64/vmx.c b/tools/testing/selftests/kvm/lib/x86_64/vmx.c > index 85064baf5e97..7aaa99ca4dbc 100644 > --- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c > +++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c > @@ -288,9 +288,9 @@ static inline void init_vmcs_host_state(void) > vmwrite(HOST_FS_BASE, rdmsr(MSR_FS_BASE)); > vmwrite(HOST_GS_BASE, rdmsr(MSR_GS_BASE)); > vmwrite(HOST_TR_BASE, > - get_desc64_base((struct desc64 *)(get_gdt_base() + get_tr()))); > - vmwrite(HOST_GDTR_BASE, get_gdt_base()); > - vmwrite(HOST_IDTR_BASE, get_idt_base()); > + get_desc64_base((struct desc64 *)(get_gdt().address + get_tr()))); > + vmwrite(HOST_GDTR_BASE, get_gdt().address); > + vmwrite(HOST_IDTR_BASE, get_idt().address); > vmwrite(HOST_IA32_SYSENTER_ESP, rdmsr(MSR_IA32_SYSENTER_ESP)); > vmwrite(HOST_IA32_SYSENTER_EIP, rdmsr(MSR_IA32_SYSENTER_EIP)); > } Reviewed-by: Vitaly Kuznetsov -- Vitaly