Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752864AbbEHLWL (ORCPT ); Fri, 8 May 2015 07:22:11 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:38850 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932140AbbEHLWD (ORCPT ); Fri, 8 May 2015 07:22:03 -0400 From: Paolo Bonzini To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: rkrcmar@redhat.com, bsd@redhat.com Subject: [PATCH 09/12] KVM: x86: add vcpu-specific functions to read/write/translate GFNs Date: Fri, 8 May 2015 13:20:31 +0200 Message-Id: <1431084034-8425-10-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1431084034-8425-1-git-send-email-pbonzini@redhat.com> References: <1431084034-8425-1-git-send-email-pbonzini@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 26647 Lines: 768 We need to hide SMRAM from guests not running in SMM. Therefore, all uses of kvm_read_guest* and kvm_write_guest* must be changed to check whether the VCPU is in system management mode. We need to introduce a new family of functions for this. For now, the code is just copied from virt/kvm/kvm_main.c, except for calls to other read/write functions. Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 20 ++++ arch/x86/kvm/Makefile | 2 +- arch/x86/kvm/lapic.c | 22 ++--- arch/x86/kvm/mmu.c | 8 +- arch/x86/kvm/paging_tmpl.h | 8 +- arch/x86/kvm/smram.c | 208 ++++++++++++++++++++++++++++++++++++++++ arch/x86/kvm/svm.c | 8 +- arch/x86/kvm/vmx.c | 10 +- arch/x86/kvm/x86.c | 62 ++++++------ 9 files changed, 288 insertions(+), 60 deletions(-) create mode 100644 arch/x86/kvm/smram.c diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index fc05c7dda9f1..52b8716397d5 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -984,6 +984,26 @@ void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault); int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, gfn_t gfn, void *data, int offset, int len, u32 access); + +struct kvm_memory_slot *x86_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn); +unsigned long x86_gfn_to_hva(struct kvm_vcpu *vcpu, gfn_t gfn); +int x86_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, + gpa_t gpa, unsigned long len); +int x86_read_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, void *data, int offset, + int len); +int x86_read_guest_atomic(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, + unsigned long len); +int x86_read_guest(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, + unsigned long len); +int x86_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc, + void *data, unsigned long len); +int x86_write_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, const void *data, + int offset, int len); +int x86_write_guest(struct kvm_vcpu *vcpu, gpa_t gpa, const void *data, + unsigned long len); +int x86_write_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc, + void *data, unsigned long len); + bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl); bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr); diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile index 16e8f962eaad..02b40b128490 100644 --- a/arch/x86/kvm/Makefile +++ b/arch/x86/kvm/Makefile @@ -12,7 +12,7 @@ kvm-y += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o \ kvm-$(CONFIG_KVM_ASYNC_PF) += $(KVM)/async_pf.o kvm-y += x86.o mmu.o emulate.o i8259.o irq.o lapic.o \ - i8254.o ioapic.o irq_comm.o cpuid.o pmu.o + i8254.o ioapic.o irq_comm.o cpuid.o pmu.o smram.o kvm-$(CONFIG_KVM_DEVICE_ASSIGNMENT) += assigned-dev.o iommu.o kvm-intel-y += vmx.o kvm-amd-y += svm.o diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index fe26f2051979..7034ec2bd318 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -497,15 +497,15 @@ int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq, static int pv_eoi_put_user(struct kvm_vcpu *vcpu, u8 val) { - return kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.pv_eoi.data, &val, + return x86_write_guest_cached(vcpu, &vcpu->arch.pv_eoi.data, &val, sizeof(val)); } static int pv_eoi_get_user(struct kvm_vcpu *vcpu, u8 *val) { - return kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.pv_eoi.data, val, - sizeof(*val)); + return x86_read_guest_cached(vcpu, &vcpu->arch.pv_eoi.data, val, + sizeof(*val)); } static inline bool pv_eoi_enabled(struct kvm_vcpu *vcpu) @@ -1883,8 +1883,8 @@ void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention)) return; - kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, - sizeof(u32)); + x86_read_guest_cached(vcpu, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); apic_set_tpr(vcpu->arch.apic, data & 0xff); } @@ -1935,16 +1935,16 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu) max_isr = 0; data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24); - kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, - sizeof(u32)); + x86_write_guest_cached(vcpu, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); } int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) { if (vapic_addr) { - if (kvm_gfn_to_hva_cache_init(vcpu->kvm, - &vcpu->arch.apic->vapic_cache, - vapic_addr, sizeof(u32))) + if (x86_gfn_to_hva_cache_init(vcpu->kvm, + &vcpu->arch.apic->vapic_cache, + vapic_addr, sizeof(u32))) return -EINVAL; __set_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); } else { @@ -2036,7 +2036,7 @@ int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data) vcpu->arch.pv_eoi.msr_val = data; if (!pv_eoi_enabled(vcpu)) return 0; - return kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.pv_eoi.data, + return x86_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.pv_eoi.data, addr, sizeof(u8)); } diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 371109546382..4694ad42aa8b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -875,7 +875,7 @@ gfn_to_memslot_dirty_bitmap(struct kvm_vcpu *vcpu, gfn_t gfn, { struct kvm_memory_slot *slot; - slot = gfn_to_memslot(vcpu->kvm, gfn); + slot = x86_gfn_to_memslot(vcpu, gfn); if (!slot || slot->flags & KVM_MEMSLOT_INVALID || (no_dirty_log && slot->dirty_bitmap)) slot = NULL; @@ -3460,7 +3460,7 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn) arch.direct_map = vcpu->arch.mmu.direct_map; arch.cr3 = vcpu->arch.mmu.get_cr3(vcpu); - return kvm_setup_async_pf(vcpu, gva, gfn_to_hva(vcpu->kvm, gfn), &arch); + return kvm_setup_async_pf(vcpu, gva, x86_gfn_to_hva(vcpu, gfn), &arch); } static bool can_do_async_pf(struct kvm_vcpu *vcpu) @@ -3478,7 +3478,7 @@ static bool try_async_pf(struct kvm_vcpu *vcpu, bool prefault, gfn_t gfn, struct kvm_memory_slot *slot; bool async; - slot = gfn_to_memslot(vcpu->kvm, gfn); + slot = x86_gfn_to_memslot(vcpu, gfn); async = false; *pfn = __gfn_to_pfn_memslot(slot, gfn, false, &async, write, writable); if (!async) @@ -4108,7 +4108,7 @@ static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa, /* Handle a 32-bit guest writing two halves of a 64-bit gpte */ *gpa &= ~(gpa_t)7; *bytes = 8; - r = kvm_read_guest(vcpu->kvm, *gpa, &gentry, 8); + r = x86_read_guest(vcpu, *gpa, &gentry, 8); if (r) gentry = 0; new = (const u8 *)&gentry; diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h index 6e6d115fe9b5..82dd0c9f788f 100644 --- a/arch/x86/kvm/paging_tmpl.h +++ b/arch/x86/kvm/paging_tmpl.h @@ -511,11 +511,11 @@ static bool FNAME(gpte_changed)(struct kvm_vcpu *vcpu, base_gpa = pte_gpa & ~mask; index = (pte_gpa - base_gpa) / sizeof(pt_element_t); - r = kvm_read_guest_atomic(vcpu->kvm, base_gpa, + r = x86_read_guest_atomic(vcpu, base_gpa, gw->prefetch_ptes, sizeof(gw->prefetch_ptes)); curr_pte = gw->prefetch_ptes[index]; } else - r = kvm_read_guest_atomic(vcpu->kvm, pte_gpa, + r = x86_read_guest_atomic(vcpu, pte_gpa, &curr_pte, sizeof(curr_pte)); return r || curr_pte != gw->ptes[level - 1]; @@ -869,7 +869,7 @@ static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva) if (!rmap_can_add(vcpu)) break; - if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte, + if (x86_read_guest_atomic(vcpu, pte_gpa, &gpte, sizeof(pt_element_t))) break; @@ -956,7 +956,7 @@ static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp) pte_gpa = first_pte_gpa + i * sizeof(pt_element_t); - if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte, + if (x86_read_guest_atomic(vcpu, pte_gpa, &gpte, sizeof(pt_element_t))) return -EINVAL; diff --git a/arch/x86/kvm/smram.c b/arch/x86/kvm/smram.c new file mode 100644 index 000000000000..73616edab631 --- /dev/null +++ b/arch/x86/kvm/smram.c @@ -0,0 +1,208 @@ +/* + * Helpers for SMRAM access + * Copyright 2015 Red Hat, Inc. and/or its affiliates. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation, or (at your + * option) any later version. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + */ + +#include +#include + +struct kvm_memory_slot *x86_gfn_to_memslot(struct kvm_vcpu *vcpu, gfn_t gfn) +{ + struct kvm_memory_slot *slot = gfn_to_memslot(vcpu->kvm, gfn); + + return slot; +} +EXPORT_SYMBOL_GPL(x86_gfn_to_memslot); + +static unsigned long x86_gfn_to_hva_prot(struct kvm_vcpu *vcpu, gfn_t gfn, + bool *writable) +{ + struct kvm_memory_slot *slot = x86_gfn_to_memslot(vcpu, gfn); + + return gfn_to_hva_memslot_prot(slot, gfn, writable); +} + +unsigned long x86_gfn_to_hva(struct kvm_vcpu *vcpu, gfn_t gfn) +{ + struct kvm_memory_slot *slot = x86_gfn_to_memslot(vcpu, gfn); + + return gfn_to_hva_memslot(slot, gfn); +} +EXPORT_SYMBOL_GPL(x86_gfn_to_hva); + +static int next_segment(unsigned long len, int offset) +{ + if (len > PAGE_SIZE - offset) + return PAGE_SIZE - offset; + else + return len; +} + +int x86_read_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, void *data, int offset, + int len) +{ + int r; + unsigned long addr; + + addr = x86_gfn_to_hva_prot(vcpu, gfn, NULL); + if (kvm_is_error_hva(addr)) + return -EFAULT; + r = __copy_from_user(data, (void __user *)addr + offset, len); + if (r) + return -EFAULT; + return 0; +} +EXPORT_SYMBOL_GPL(x86_read_guest_page); + +int x86_read_guest_atomic(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, + unsigned long len) +{ + int r; + unsigned long addr; + gfn_t gfn = gpa >> PAGE_SHIFT; + int offset = offset_in_page(gpa); + + addr = x86_gfn_to_hva_prot(vcpu, gfn, NULL); + if (kvm_is_error_hva(addr)) + return -EFAULT; + pagefault_disable(); + r = __copy_from_user_inatomic(data, (void __user *)addr + offset, len); + pagefault_enable(); + if (r) + return -EFAULT; + return 0; +} +EXPORT_SYMBOL_GPL(x86_read_guest_atomic); + +int x86_read_guest(struct kvm_vcpu *vcpu, gpa_t gpa, void *data, + unsigned long len) +{ + gfn_t gfn = gpa >> PAGE_SHIFT; + int seg; + int offset = offset_in_page(gpa); + int ret; + + while ((seg = next_segment(len, offset)) != 0) { + ret = x86_read_guest_page(vcpu, gfn, data, offset, seg); + if (ret < 0) + return ret; + offset = 0; + len -= seg; + data += seg; + ++gfn; + } + return 0; +} +EXPORT_SYMBOL_GPL(x86_read_guest); + +int x86_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, + gpa_t gpa, unsigned long len) +{ + return kvm_gfn_to_hva_cache_init(kvm, ghc, gpa, len); +} +EXPORT_SYMBOL_GPL(x86_gfn_to_hva_cache_init); + +int x86_read_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc, + void *data, unsigned long len) +{ + struct kvm_memslots *slots = kvm_memslots(vcpu->kvm); + int r; + + BUG_ON(len > ghc->len); + + if (slots->generation != ghc->generation) + x86_gfn_to_hva_cache_init(vcpu->kvm, ghc, ghc->gpa, ghc->len); + + if (unlikely(!ghc->memslot)) + return x86_read_guest(vcpu, ghc->gpa, data, len); + + if (kvm_is_error_hva(ghc->hva)) + return -EFAULT; + + r = __copy_from_user(data, (void __user *)ghc->hva, len); + if (r) + return -EFAULT; + + return 0; +} +EXPORT_SYMBOL_GPL(x86_read_guest_cached); + +int x86_write_guest_page(struct kvm_vcpu *vcpu, gfn_t gfn, const void *data, + int offset, int len) +{ + struct kvm_memory_slot *slot = x86_gfn_to_memslot(vcpu, gfn); + int r; + unsigned long addr; + + slot = x86_gfn_to_memslot(vcpu, gfn); + addr = gfn_to_hva_memslot(slot, gfn); + if (kvm_is_error_hva(addr)) + return -EFAULT; + r = __copy_to_user((void __user *)addr + offset, data, len); + if (r) + return -EFAULT; + mark_page_dirty_in_slot(slot, gfn); + return 0; +} +EXPORT_SYMBOL_GPL(x86_write_guest_page); + +int x86_write_guest(struct kvm_vcpu *vcpu, gpa_t gpa, const void *data, + unsigned long len) +{ + gfn_t gfn = gpa >> PAGE_SHIFT; + int seg; + int offset = offset_in_page(gpa); + int ret; + + while ((seg = next_segment(len, offset)) != 0) { + ret = x86_write_guest_page(vcpu, gfn, data, offset, seg); + if (ret < 0) + return ret; + offset = 0; + len -= seg; + data += seg; + ++gfn; + } + return 0; +} +EXPORT_SYMBOL_GPL(x86_write_guest); + +int x86_write_guest_cached(struct kvm_vcpu *vcpu, struct gfn_to_hva_cache *ghc, + void *data, unsigned long len) +{ + struct kvm_memslots *slots = kvm_memslots(vcpu->kvm); + int r; + + BUG_ON(len > ghc->len); + + if (slots->generation != ghc->generation) + x86_gfn_to_hva_cache_init(vcpu->kvm, ghc, ghc->gpa, ghc->len); + + if (unlikely(!ghc->memslot)) + return x86_write_guest(vcpu, ghc->gpa, data, len); + + if (kvm_is_error_hva(ghc->hva)) + return -EFAULT; + + r = __copy_to_user((void __user *)ghc->hva, data, len); + if (r) + return -EFAULT; + mark_page_dirty_in_slot(ghc->memslot, ghc->gpa >> PAGE_SHIFT); + + return 0; +} +EXPORT_SYMBOL_GPL(x86_write_guest_cached); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 6afffb82513c..1422dd945b85 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1955,7 +1955,7 @@ static u64 nested_svm_get_tdp_pdptr(struct kvm_vcpu *vcpu, int index) u64 pdpte; int ret; - ret = kvm_read_guest_page(vcpu->kvm, gpa_to_gfn(cr3), &pdpte, + ret = x86_read_guest_page(vcpu, gpa_to_gfn(cr3), &pdpte, offset_in_page(cr3) + index * 8, 8); if (ret) return 0; @@ -2153,7 +2153,7 @@ static int nested_svm_intercept_ioio(struct vcpu_svm *svm) mask = (0xf >> (4 - size)) << start_bit; val = 0; - if (kvm_read_guest(svm->vcpu.kvm, gpa, &val, iopm_len)) + if (x86_read_guest(&svm->vcpu, gpa, &val, iopm_len)) return NESTED_EXIT_DONE; return (val & mask) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST; @@ -2178,7 +2178,7 @@ static int nested_svm_exit_handled_msr(struct vcpu_svm *svm) /* Offset is in 32 bit units but need in 8 bit units */ offset *= 4; - if (kvm_read_guest(svm->vcpu.kvm, svm->nested.vmcb_msrpm + offset, &value, 4)) + if (x86_read_guest(&svm->vcpu, svm->nested.vmcb_msrpm + offset, &value, 4)) return NESTED_EXIT_DONE; return (value & mask) ? NESTED_EXIT_DONE : NESTED_EXIT_HOST; @@ -2449,7 +2449,7 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm) p = msrpm_offsets[i]; offset = svm->nested.vmcb_msrpm + (p * 4); - if (kvm_read_guest(svm->vcpu.kvm, offset, &value, 4)) + if (x86_read_guest(&svm->vcpu, offset, &value, 4)) return false; svm->nested.msrpm[p] = svm->msrpm[p] | value; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 121a653919c0..d29f751ea10d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7326,7 +7326,7 @@ static bool nested_vmx_exit_handled_io(struct kvm_vcpu *vcpu, bitmap += (port & 0x7fff) / 8; if (last_bitmap != bitmap) - if (kvm_read_guest(vcpu->kvm, bitmap, &b, 1)) + if (x86_read_guest(vcpu, bitmap, &b, 1)) return true; if (b & (1 << (port & 7))) return true; @@ -7370,7 +7370,7 @@ static bool nested_vmx_exit_handled_msr(struct kvm_vcpu *vcpu, /* Then read the msr_index'th bit from this bitmap: */ if (msr_index < 1024*8) { unsigned char b; - if (kvm_read_guest(vcpu->kvm, bitmap + msr_index/8, &b, 1)) + if (x86_read_guest(vcpu, bitmap + msr_index/8, &b, 1)) return true; return 1 & (b >> (msr_index & 7)); } else @@ -9112,7 +9112,7 @@ static u32 nested_vmx_load_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count) msr.host_initiated = false; for (i = 0; i < count; i++) { - if (kvm_read_guest(vcpu->kvm, gpa + i * sizeof(e), + if (x86_read_guest(vcpu, gpa + i * sizeof(e), &e, sizeof(e))) { pr_warn_ratelimited( "%s cannot read MSR entry (%u, 0x%08llx)\n", @@ -9146,7 +9146,7 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count) for (i = 0; i < count; i++) { struct msr_data msr_info; - if (kvm_read_guest(vcpu->kvm, + if (x86_read_guest(vcpu, gpa + i * sizeof(e), &e, 2 * sizeof(u32))) { pr_warn_ratelimited( @@ -9168,7 +9168,7 @@ static int nested_vmx_store_msr(struct kvm_vcpu *vcpu, u64 gpa, u32 count) __func__, i, e.index); return -EINVAL; } - if (kvm_write_guest(vcpu->kvm, + if (x86_write_guest(vcpu, gpa + i * sizeof(e) + offsetof(struct vmx_msr_entry, value), &msr_info.data, sizeof(msr_info.data))) { diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 9eba0d850d17..9c89aee475d3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -475,7 +475,7 @@ EXPORT_SYMBOL_GPL(kvm_require_dr); /* * This function will be used to read from the physical memory of the currently - * running guest. The difference to kvm_read_guest_page is that this function + * running guest. The difference to x86_read_guest_page is that this function * can read from guest physical or from the guest's guest physical memory. */ int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, @@ -493,7 +493,7 @@ int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, real_gfn = gpa_to_gfn(real_gfn); - return kvm_read_guest_page(vcpu->kvm, real_gfn, data, offset, len); + return x86_read_guest_page(vcpu, real_gfn, data, offset, len); } EXPORT_SYMBOL_GPL(kvm_read_guest_page_mmu); @@ -1128,7 +1128,7 @@ void kvm_set_pending_timer(struct kvm_vcpu *vcpu) kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu); } -static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) +static void kvm_write_wall_clock(struct kvm_vcpu *vcpu, gpa_t wall_clock) { int version; int r; @@ -1138,7 +1138,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) if (!wall_clock) return; - r = kvm_read_guest(kvm, wall_clock, &version, sizeof(version)); + r = x86_read_guest(vcpu, wall_clock, &version, sizeof(version)); if (r) return; @@ -1147,7 +1147,7 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) ++version; - kvm_write_guest(kvm, wall_clock, &version, sizeof(version)); + x86_write_guest(vcpu, wall_clock, &version, sizeof(version)); /* * The guest calculates current wall clock time by adding @@ -1157,18 +1157,18 @@ static void kvm_write_wall_clock(struct kvm *kvm, gpa_t wall_clock) */ getboottime(&boot); - if (kvm->arch.kvmclock_offset) { - struct timespec ts = ns_to_timespec(kvm->arch.kvmclock_offset); + if (vcpu->kvm->arch.kvmclock_offset) { + struct timespec ts = ns_to_timespec(vcpu->kvm->arch.kvmclock_offset); boot = timespec_sub(boot, ts); } wc.sec = boot.tv_sec; wc.nsec = boot.tv_nsec; wc.version = version; - kvm_write_guest(kvm, wall_clock, &wc, sizeof(wc)); + x86_write_guest(vcpu, wall_clock, &wc, sizeof(wc)); version++; - kvm_write_guest(kvm, wall_clock, &version, sizeof(version)); + x86_write_guest(vcpu, wall_clock, &version, sizeof(version)); } static uint32_t div_frac(uint32_t dividend, uint32_t divisor) @@ -1684,7 +1684,7 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) vcpu->hv_clock.system_time = kernel_ns + v->kvm->arch.kvmclock_offset; vcpu->last_guest_tsc = tsc_timestamp; - if (unlikely(kvm_read_guest_cached(v->kvm, &vcpu->pv_time, + if (unlikely(x86_read_guest_cached(v, &vcpu->pv_time, &guest_hv_clock, sizeof(guest_hv_clock)))) return 0; @@ -1727,7 +1727,7 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) trace_kvm_pvclock_update(v->vcpu_id, &vcpu->hv_clock); - kvm_write_guest_cached(v->kvm, &vcpu->pv_time, + x86_write_guest_cached(v, &vcpu->pv_time, &vcpu->hv_clock, sizeof(vcpu->hv_clock)); @@ -1968,7 +1968,7 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data) r = PTR_ERR(page); goto out; } - if (kvm_write_guest(kvm, page_addr, page, PAGE_SIZE)) + if (x86_write_guest(vcpu, page_addr, page, PAGE_SIZE)) goto out_free; r = 0; out_free: @@ -2021,7 +2021,7 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data) break; } gfn = data >> HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT; - addr = gfn_to_hva(kvm, gfn); + addr = x86_gfn_to_hva(vcpu, gfn); if (kvm_is_error_hva(addr)) return 1; kvm_x86_ops->patch_hypercall(vcpu, instructions); @@ -2040,7 +2040,7 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data) if (!(data & HV_X64_MSR_TSC_REFERENCE_ENABLE)) break; gfn = data >> HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT; - if (kvm_write_guest(kvm, gfn << HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT, + if (x86_write_guest(vcpu, gfn << HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT, &tsc_ref, sizeof(tsc_ref))) return 1; mark_page_dirty(kvm, gfn); @@ -2068,7 +2068,7 @@ static int set_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 data) break; } gfn = data >> HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT; - addr = gfn_to_hva(vcpu->kvm, gfn); + addr = x86_gfn_to_hva(vcpu, gfn); if (kvm_is_error_hva(addr)) return 1; if (__clear_user((void __user *)addr, PAGE_SIZE)) @@ -2110,8 +2110,8 @@ static int kvm_pv_enable_async_pf(struct kvm_vcpu *vcpu, u64 data) return 0; } - if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa, - sizeof(u32))) + if (x86_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa, + sizeof(u32))) return 1; vcpu->arch.apf.send_user_only = !(data & KVM_ASYNC_PF_SEND_ALWAYS); @@ -2141,7 +2141,7 @@ static void record_steal_time(struct kvm_vcpu *vcpu) if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED)) return; - if (unlikely(kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.st.stime, + if (unlikely(x86_read_guest_cached(vcpu, &vcpu->arch.st.stime, &vcpu->arch.st.steal, sizeof(struct kvm_steal_time)))) return; @@ -2149,7 +2149,7 @@ static void record_steal_time(struct kvm_vcpu *vcpu) vcpu->arch.st.steal.version += 2; vcpu->arch.st.accum_steal = 0; - kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.st.stime, + x86_write_guest_cached(vcpu, &vcpu->arch.st.stime, &vcpu->arch.st.steal, sizeof(struct kvm_steal_time)); } @@ -2229,7 +2229,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_KVM_WALL_CLOCK_NEW: case MSR_KVM_WALL_CLOCK: vcpu->kvm->arch.wall_clock = data; - kvm_write_wall_clock(vcpu->kvm, data); + kvm_write_wall_clock(vcpu, data); break; case MSR_KVM_SYSTEM_TIME_NEW: case MSR_KVM_SYSTEM_TIME: { @@ -2257,7 +2257,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) gpa_offset = data & ~(PAGE_MASK | 1); - if (kvm_gfn_to_hva_cache_init(vcpu->kvm, + if (x86_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.pv_time, data & ~1ULL, sizeof(struct pvclock_vcpu_time_info))) vcpu->arch.pv_time_enabled = false; @@ -2278,9 +2278,9 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (data & KVM_STEAL_RESERVED_MASK) return 1; - if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.st.stime, - data & KVM_STEAL_VALID_BITS, - sizeof(struct kvm_steal_time))) + if (x86_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.st.stime, + data & KVM_STEAL_VALID_BITS, + sizeof(struct kvm_steal_time))) return 1; vcpu->arch.st.msr_val = data; @@ -4355,7 +4355,7 @@ static int kvm_read_guest_virt_helper(gva_t addr, void *val, unsigned int bytes, if (gpa == UNMAPPED_GVA) return X86EMUL_PROPAGATE_FAULT; - ret = kvm_read_guest_page(vcpu->kvm, gpa >> PAGE_SHIFT, data, + ret = x86_read_guest_page(vcpu, gpa >> PAGE_SHIFT, data, offset, toread); if (ret < 0) { r = X86EMUL_IO_NEEDED; @@ -4389,7 +4389,7 @@ static int kvm_fetch_guest_virt(struct x86_emulate_ctxt *ctxt, offset = addr & (PAGE_SIZE-1); if (WARN_ON(offset + bytes > PAGE_SIZE)) bytes = (unsigned)PAGE_SIZE - offset; - ret = kvm_read_guest_page(vcpu->kvm, gpa >> PAGE_SHIFT, val, + ret = x86_read_guest_page(vcpu, gpa >> PAGE_SHIFT, val, offset, bytes); if (unlikely(ret < 0)) return X86EMUL_IO_NEEDED; @@ -4436,7 +4436,7 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt, if (gpa == UNMAPPED_GVA) return X86EMUL_PROPAGATE_FAULT; - ret = kvm_write_guest(vcpu->kvm, gpa, data, towrite); + ret = x86_write_guest(vcpu, gpa, data, towrite); if (ret < 0) { r = X86EMUL_IO_NEEDED; goto out; @@ -4489,7 +4489,7 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, { int ret; - ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes); + ret = x86_write_guest(vcpu, gpa, val, bytes); if (ret < 0) return 0; kvm_mmu_pte_write(vcpu, gpa, val, bytes); @@ -4523,7 +4523,7 @@ static int read_prepare(struct kvm_vcpu *vcpu, void *val, int bytes) static int read_emulate(struct kvm_vcpu *vcpu, gpa_t gpa, void *val, int bytes) { - return !kvm_read_guest(vcpu->kvm, gpa, val, bytes); + return !x86_read_guest(vcpu, gpa, val, bytes); } static int write_emulate(struct kvm_vcpu *vcpu, gpa_t gpa, @@ -6490,7 +6490,7 @@ static void process_smi(struct kvm_vcpu *vcpu) else process_smi_save_state_32(vcpu, buf); - r = kvm_write_guest(vcpu->kvm, vcpu->arch.smbase + 0xfe00, buf, sizeof(buf)); + r = x86_write_guest(vcpu, vcpu->arch.smbase + 0xfe00, buf, sizeof(buf)); if (r < 0) return; @@ -8279,7 +8279,7 @@ static void kvm_del_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn) static int apf_put_user(struct kvm_vcpu *vcpu, u32 val) { - return kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apf.data, &val, + return x86_write_guest_cached(vcpu, &vcpu->arch.apf.data, &val, sizeof(val)); } -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/