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/openbmc/linux/arch/powerpc/kvm/
H A Dbook3s_64_mmu_radix.c1 // SPDX-License-Identifier: GPL-2.0-only
22 #include <asm/pte-walk.h>
43 /* Can't access quadrants 1 or 2 in non-HV mode, call the HV to do it */ in __kvmhv_copy_tofrom_guest_radix()
52 quadrant = 1; in __kvmhv_copy_tofrom_guest_radix()
68 if (quadrant == 1) { in __kvmhv_copy_tofrom_guest_radix()
85 if (quadrant == 1 && pid != old_pid) in __kvmhv_copy_tofrom_guest_radix()
99 int lpid = vcpu->kvm->arch.lpid; in kvmhv_copy_tofrom_guest_radix()
100 int pid = vcpu->arch.pid; in kvmhv_copy_tofrom_guest_radix()
104 return -EINVAL; in kvmhv_copy_tofrom_guest_radix()
107 if (vcpu->arch.nested) in kvmhv_copy_tofrom_guest_radix()
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H A Dbook3s_hv_uvmem.c1 // SPDX-License-Identifier: GPL-2.0
10 * A pseries guest can be run as secure guest on Ultravisor-enabled
15 * The page-in or page-out requests from UV will come to HV as hcalls and
31 * kvm->arch.uvmem_lock is a per-guest lock that prevents concurrent
32 * page-in and page-out requests for the same GPA. Concurrent accesses
37 * migrate_vma routines and page-in/out routines.
39 * Per-guest mutex comes with a cost though. Mainly it serializes the
40 * fault path as page-out can occur when HV faults on accessing secure
41 * guest pages. Currently UV issues page-in requests for all the guest
43 * not a cause for concern. Also currently the number of page-outs caused
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/openbmc/linux/tools/testing/selftests/kvm/
H A Dmax_guest_memory_test.c1 // SPDX-License-Identifier: GPL-2.0
23 uint64_t gpa; in guest_code() local
25 for (gpa = start_gpa; gpa < end_gpa; gpa += stride) in guest_code()
26 *((volatile uint64_t *)gpa) = gpa; in guest_code()
64 struct kvm_vcpu *vcpu = info->vcpu; in vcpu_worker()
65 struct kvm_vm *vm = vcpu->vm; in vcpu_worker()
69 vcpu_args_set(vcpu, 3, info->start_gpa, info->end_gpa, vm->page_size); in vcpu_worker()
96 uint64_t gpa, nr_bytes; in spawn_workers() local
104 TEST_ASSERT(info, "Failed to allocate vCPU gpa ranges"); in spawn_workers()
106 nr_bytes = ((end_gpa - start_gpa) / nr_vcpus) & in spawn_workers()
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H A Dmemslot_perf_test.c1 // SPDX-License-Identifier: GPL-2.0
3 * A memslot-related performance benchmark.
36 #define MEM_TEST_SIZE (MEM_SIZE - MEM_EXTRA_SIZE)
45 #define MEM_TEST_MAP_SIZE (MEM_SIZE_MAP - MEM_EXTRA_SIZE)
68 * architecture slots memory-per-slot memory-on-last-slot
69 * --------------------------------------------------------------
70 * x86-4KB 32763 16KB 160KB
71 * arm64-4KB 32766 16KB 112KB
72 * arm64-16KB 32766 16KB 112KB
73 * arm64-64KB 8192 64KB 128KB
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/openbmc/qemu/target/i386/hvf/
H A Dx86_mmu.c39 #define PAE_PTE_PAGE_MASK ((-1llu << 12) & ((1llu << 52) - 1))
40 #define PAE_PTE_LARGE_PAGE_MASK ((-1llu << (21)) & ((1llu << 52) - 1))
41 #define PAE_PTE_SUPER_PAGE_MASK ((-1llu << (30)) & ((1llu << 52) - 1))
45 uint64_t gpa; member
68 return (addr >> (level_shift * (level - 1) + 12)) & ((1 << level_shift) - 1); in gpt_entry()
83 uint64_t gpa = pt->pte[level] & page_mask; in get_pt_entry() local
86 gpa = pt->pte[level]; in get_pt_entry()
89 index = gpt_entry(pt->gva, level, pae); in get_pt_entry()
90 address_space_read(&address_space_memory, gpa + index * pte_size(pae), in get_pt_entry()
93 pt->pte[level - 1] = pte; in get_pt_entry()
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/openbmc/linux/arch/mips/kvm/
H A Dmmu.c19 * KVM_MMU_CACHE_MIN_PAGES is the number of GPA page table translation levels
23 #define KVM_MMU_CACHE_MIN_PAGES 1
30 kvm_mmu_free_memory_cache(&vcpu->arch.mmu_page_cache); in kvm_mmu_free_memory_caches()
34 * kvm_pgd_init() - Initialise KVM GPA page directory.
35 * @page: Pointer to page directory (PGD) for KVM GPA.
37 * Initialise a KVM GPA page directory with pointers to the invalid table, i.e.
59 p[1] = entry; in kvm_pgd_init()
64 p[-3] = entry; in kvm_pgd_init()
65 p[-2] = entry; in kvm_pgd_init()
66 p[-1] = entry; in kvm_pgd_init()
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H A Dtlb.c42 struct mm_struct *gpa_mm = &vcpu->kvm->arch.gpa_mm; in kvm_mips_get_root_asid()
79 * clear_root_gid() - Set GuestCtl1.RID for normal root operation.
90 * set_root_gid_to_guest_gid() - Set GuestCtl1.RID to match GuestCtl1.ID.
93 * on the GPA->RPA mappings in the root TLB.
153 * kvm_vz_guest_tlb_lookup() - Lookup a guest VZ TLB mapping.
155 * @gpa: Guest virtual address in a TLB mapped guest segment.
156 * @gpa: Pointer to output guest physical address it maps to.
161 * Returns: 0 if guest TLB mapping exists for @gva. *@gpa will have been
163 * -EFAULT if no guest TLB mapping exists for @gva. *@gpa may not
167 unsigned long *gpa) in kvm_vz_guest_tlb_lookup() argument
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/openbmc/linux/tools/testing/selftests/kvm/lib/
H A Dmemstress.c1 // SPDX-License-Identifier: GPL-2.0
51 struct memstress_vcpu_args *vcpu_args = &args->vcpu_args[vcpu_idx]; in memstress_guest_code()
59 rand_state = new_guest_random_state(args->random_seed + vcpu_idx); in memstress_guest_code()
61 gva = vcpu_args->gva; in memstress_guest_code()
62 pages = vcpu_args->pages; in memstress_guest_code()
65 GUEST_ASSERT(vcpu_args->vcpu_idx == vcpu_idx); in memstress_guest_code()
68 for (i = 0; i < sizeof(memstress_args); i += args->guest_page_size) in memstress_guest_code()
72 if (args->random_access) in memstress_guest_code()
77 addr = gva + (page * args->guest_page_size); in memstress_guest_code()
79 if (guest_random_u32(&rand_state) % 100 < args->write_percent) in memstress_guest_code()
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/openbmc/linux/arch/s390/kvm/
H A Dgaccess.c1 // SPDX-License-Identifier: GPL-2.0
16 #include "kvm-s390.h"
23 unsigned long origin : 52; /* Region- or Segment-Table Origin */
25 unsigned long g : 1; /* Subspace Group Control */
26 unsigned long p : 1; /* Private Space Control */
27 unsigned long s : 1; /* Storage-Alteratio
606 deref_table(struct kvm * kvm,unsigned long gpa,unsigned long * val) deref_table() argument
633 guest_translate(struct kvm_vcpu * vcpu,unsigned long gva,unsigned long * gpa,const union asce asce,enum gacc_mode mode,enum prot_type * prot) guest_translate() argument
816 vm_check_access_key(struct kvm * kvm,u8 access_key,enum gacc_mode mode,gpa_t gpa) vm_check_access_key() argument
879 vcpu_check_access_key(struct kvm_vcpu * vcpu,u8 access_key,enum gacc_mode mode,union asce asce,gpa_t gpa,unsigned long ga,unsigned int len) vcpu_check_access_key() argument
962 unsigned long gpa; guest_range_to_gpas() local
997 access_guest_page(struct kvm * kvm,enum gacc_mode mode,gpa_t gpa,void * data,unsigned int len) access_guest_page() argument
1014 access_guest_page_with_key(struct kvm * kvm,enum gacc_mode mode,gpa_t gpa,void * data,unsigned int len,u8 access_key) access_guest_page_with_key() argument
1047 access_guest_abs_with_key(struct kvm * kvm,gpa_t gpa,void * data,unsigned long len,enum gacc_mode mode,u8 access_key) access_guest_abs_with_key() argument
1152 unsigned long gpa; access_guest_real() local
1192 cmpxchg_guest_abs_with_key(struct kvm * kvm,gpa_t gpa,int len,__uint128_t * old_addr,__uint128_t new,u8 access_key,bool * success) cmpxchg_guest_abs_with_key() argument
1293 guest_translate_address_with_key(struct kvm_vcpu * vcpu,unsigned long gva,u8 ar,unsigned long * gpa,enum gacc_mode mode,u8 access_key) guest_translate_address_with_key() argument
1341 check_gpa_range(struct kvm * kvm,unsigned long gpa,unsigned long length,enum gacc_mode mode,u8 access_key) check_gpa_range() argument
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H A Dvsie.c1 // SPDX-License-Identifier: GPL-2.0
22 #include "kvm-s390.h"
48 __u8 reserved[0x0700 - 0x0258]; /* 0x0258 */
57 scb->ipa = 0x1000; in set_validity_icpt()
58 scb->ipb = ((__u32) reason_code) << 16; in set_validity_icpt()
59 scb->icptcode = ICPT_VALIDITY; in set_validity_icpt()
60 return 1; in set_validity_icpt()
66 atomic_or(PROG_REQUEST, &vsie_page->scb_s.prog20); in prefix_unmapped()
73 if (vsie_page->scb_s.prog0c & PROG_IN_SIE) in prefix_unmapped_sync()
74 atomic_or(CPUSTAT_STOP_INT, &vsie_page->scb_s.cpuflags); in prefix_unmapped_sync()
[all …]
H A Dgaccess.h1 /* SPDX-License-Identifier: GPL-2.0 */
17 #include "kvm-s390.h"
20 * kvm_s390_real_to_abs - convert guest real address to guest absolute address
21 * @prefix - guest prefix
22 * @gra - guest real address
32 gra -= prefix; in _kvm_s390_real_to_abs()
37 * kvm_s390_real_to_abs - convert guest real address to guest absolute address
38 * @vcpu - guest virtual cpu
39 * @gra - guest real address
51 * _kvm_s390_logical_to_effective - convert guest logical to effective address
[all …]
/openbmc/linux/arch/loongarch/include/asm/
H A Dtlb.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
9 #include <asm/cpu-features.h>
53 /* Invalid all global=1 lines in current tlb */
61 /* Invalid addr with global=1 or matched asid in current tlb */
65 /* Invalid global=1, matched gid in guest tlb */
73 /* Invalid global=1 , matched gid, asid and addr in guest tlb */
75 /* Invalid all gid gva-->gpa guest tlb */
77 /* Invalid all gid gpa-->hpa tlb */
79 /* Invalid all gid tlb, including gva-->gpa and gpa-->hpa */
[all …]
/openbmc/qemu/hw/i386/kvm/
H A Dxen_overlay.c9 * See the COPYING file in the top-level directory.
13 #include "qemu/host-utils.h"
15 #include "qemu/main-loop.h"
19 #include "exec/address-spaces.h"
33 #define TYPE_XEN_OVERLAY "xen-overlay"
37 #define XEN_PAGE_SIZE (1ULL << XEN_PAGE_SHIFT)
52 void xen_overlay_do_map_page(MemoryRegion *page, uint64_t gpa) in xen_overlay_do_map_page() argument
62 if (gpa == INVALID_GPA) { in xen_overlay_do_map_page()
66 memory_region_set_address(page, gpa); in xen_overlay_do_map_page()
68 } else if (gpa != INVALID_GPA) { in xen_overlay_do_map_page()
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/openbmc/qemu/target/i386/kvm/
H A Dxen-emu.c8 * See the COPYING file in the top-level directory.
14 #include "qemu/main-loop.h"
15 #include "qemu/error-report.h"
20 #include "exec/address-spaces.h"
21 #include "xen-emu.h"
26 #include "hw/i386/apic-msidef.h"
43 #include "xen-compat.h"
55 static bool kvm_gva_to_gpa(CPUState *cs, uint64_t gva, uint64_t *gpa, in kvm_gva_to_gpa() argument
63 *len = TARGET_PAGE_SIZE - (gva & ~TARGET_PAGE_MASK); in kvm_gva_to_gpa()
70 *gpa = tr.physical_address; in kvm_gva_to_gpa()
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/openbmc/u-boot/doc/
H A DREADME.s5pc1xx5 This README is about U-Boot support for SAMSUNG's ARM Cortex-A8 based S5PC1xx
6 family of SoCs (S5PC100 [1] and S5PC110).
15 While ARM Cortex-A8 support ARM v7 instruction set (-march=armv7a) we compile
16 with -march=armv5 to allow more compilers to work. For U-Boot code this has
47 /* GPA[0] pin set to irq */
48 gpio_cfg_pin(&gpio->gpio_a, 0, GPIO_IRQ);
50 /* GPA[0] pin set to input */
51 gpio_direction_input(&gpio->gpio_a, 0);
53 /* GPA[0] pin set to output/high */
54 gpio_direction_output(&gpio->gpio_a, 0, 1);
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/openbmc/linux/arch/x86/include/asm/uv/
H A Duv_hub.h9 * Copyright (C) 2007-2014 Silicon Graphics, Inc. All rights reserved.
33 * M - The low M bits of a physical address represent the offset
38 * N - Number of bits in the node portion of a socket physical
41 * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of
42 * routers always have low bit of 1, C/MBricks have low bit
44 * right shift the NASID by 1 to exclude the always-zero bit.
47 * GNODE - NASID right shifted by 1 bit. Most mmrs contain gnodes instead
50 * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant
53 * GPA - (global physical address) a socket physical address converted
55 * physical addresses 1) need additional NASID (node) bits added
[all …]
/openbmc/linux/arch/riscv/kvm/
H A Dmmu.c1 // SPDX-License-Identifier: GPL-2.0
33 #define gstage_pgd_size (1UL << (HGATP_PAGE_SHIFT + gstage_pgd_xbits))
37 #define gstage_gpa_size ((gpa_t)(1ULL << gstage_gpa_bits))
47 if (level == (gstage_pgd_levels - 1)) in gstage_pte_index()
48 mask = (PTRS_PER_PTE * (1UL << gstage_pgd_xbits)) - 1; in gstage_pte_index()
50 mask = PTRS_PER_PTE - 1; in gstage_pte_index()
63 unsigned long psz = 1UL << 12; in gstage_page_size_to_level()
72 return -EINVAL; in gstage_page_size_to_level()
78 return -EINVAL; in gstage_level_to_page_order()
101 u32 current_level = gstage_pgd_levels - 1; in gstage_get_leaf_entry()
[all …]
H A Dtlb.c1 // SPDX-License-Identifier: GPL-2.0
16 #include <asm/insn-def.h>
21 gpa_t gpa, gpa_t gpsz, in kvm_riscv_local_hfence_gvma_vmid_gpa() argument
33 for (pos = gpa; pos < (gpa + gpsz); pos += BIT(order)) in kvm_riscv_local_hfence_gvma_vmid_gpa()
34 asm volatile (HINVAL_GVMA(%0, %1) in kvm_riscv_local_hfence_gvma_vmid_gpa()
38 for (pos = gpa; pos < (gpa + gpsz); pos += BIT(order)) in kvm_riscv_local_hfence_gvma_vmid_gpa()
39 asm volatile (HFENCE_GVMA(%0, %1) in kvm_riscv_local_hfence_gvma_vmid_gpa()
49 void kvm_riscv_local_hfence_gvma_gpa(gpa_t gpa, gpa_t gpsz, in kvm_riscv_local_hfence_gvma_gpa() argument
61 for (pos = gpa; pos < (gpa + gpsz); pos += BIT(order)) in kvm_riscv_local_hfence_gvma_gpa()
66 for (pos = gpa; pos < (gpa + gpsz); pos += BIT(order)) in kvm_riscv_local_hfence_gvma_gpa()
[all …]
/openbmc/linux/arch/x86/kvm/
H A Dcpuid.h1 /* SPDX-License-Identifier: GPL-2.0 */
43 return vcpu->arch.maxphyaddr; in cpuid_maxphyaddr()
46 static inline bool kvm_vcpu_is_legal_gpa(struct kvm_vcpu *vcpu, gpa_t gpa) in kvm_vcpu_is_legal_gpa() argument
48 return !(gpa & vcpu->arch.reserved_gpa_bits); in kvm_vcpu_is_legal_gpa()
51 static inline bool kvm_vcpu_is_illegal_gpa(struct kvm_vcpu *vcpu, gpa_t gpa) in kvm_vcpu_is_illegal_gpa() argument
53 return !kvm_vcpu_is_legal_gpa(vcpu, gpa); in kvm_vcpu_is_illegal_gpa()
57 gpa_t gpa, gpa_t alignment) in kvm_vcpu_is_legal_aligned_gpa() argument
59 return IS_ALIGNED(gpa, alignment) && kvm_vcpu_is_legal_gpa(vcpu, gpa); in kvm_vcpu_is_legal_aligned_gpa()
62 static inline bool page_address_valid(struct kvm_vcpu *vcpu, gpa_t gpa) in page_address_valid() argument
64 return kvm_vcpu_is_legal_aligned_gpa(vcpu, gpa, PAGE_SIZE); in page_address_valid()
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/openbmc/linux/Documentation/virt/kvm/x86/
H A Dmmu.rst1 .. SPDX-License-Identifier: GPL-2.0
13 - correctness:
18 - security:
21 - performance:
23 - scaling:
25 - hardware:
27 - integration:
31 - dirty tracking:
33 and framebuffer-based displays
34 - footprint:
[all …]
/openbmc/linux/arch/x86/kvm/vmx/
H A Dsgx.c1 // SPDX-License-Identifier: GPL-2.0
14 bool __read_mostly enable_sgx = 1;
30 /* Skip vmcs.GUEST_DS retrieval for 64-bit mode to avoid VMREADs. */ in sgx_get_encls_gva()
47 (((u64)*gva + size - 1) > s.limit + 1)); in sgx_get_encls_gva()
51 return fault ? -EINVAL : 0; in sgx_get_encls_gva()
67 return -EFAULT; in sgx_read_hva()
74 gpa_t *gpa) in sgx_gva_to_gpa() argument
79 *gpa = kvm_mmu_gva_to_gpa_write(vcpu, gva, &ex); in sgx_gva_to_gpa()
81 *gpa = kvm_mmu_gva_to_gpa_read(vcpu, gva, &ex); in sgx_gva_to_gpa()
83 if (*gpa == INVALID_GPA) { in sgx_gva_to_gpa()
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/openbmc/qemu/hw/virtio/
H A Dvhost-iova-tree.c4 * SPDX-FileCopyrightText: Red Hat, Inc. 2021
5 * SPDX-FileContributor: Author: Eugenio Pérez <eperezma@redhat.com>
7 * SPDX-License-Identifier: GPL-2.0-or-later
11 #include "qemu/iova-tree.h"
12 #include "vhost-iova-tree.h"
18 * - Translate iova address
19 * - Reverse translate iova address (from translated to iova)
20 * - Allocate IOVA regions for translated range (linear operation)
35 /* GPA->IOVA address memory maps */
46 VhostIOVATree *tree = g_new(VhostIOVATree, 1); in vhost_iova_tree_new()
[all …]
/openbmc/qemu/hw/vfio/
H A Dspapr.c8 * the COPYING file in the top-level directory.
16 #include "exec/address-spaces.h"
18 #include "hw/vfio/vfio-common.h"
21 #include "qemu/error-report.h"
35 if (memory_region_is_iommu(section->mr)) { in vfio_prereg_listener_skipped_section()
39 return !memory_region_is_ram(section->mr) || in vfio_prereg_listener_skipped_section()
40 memory_region_is_ram_device(section->mr); in vfio_prereg_listener_skipped_section()
43 static void *vfio_prereg_gpa_to_vaddr(MemoryRegionSection *section, hwaddr gpa) in vfio_prereg_gpa_to_vaddr() argument
45 return memory_region_get_ram_ptr(section->mr) + in vfio_prereg_gpa_to_vaddr()
46 section->offset_within_region + in vfio_prereg_gpa_to_vaddr()
[all …]
/openbmc/linux/tools/testing/selftests/kvm/lib/s390x/
H A Dprocessor.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * KVM selftest s390x library code - CPU-related functions (page tables...)
17 TEST_ASSERT(vm->page_size == 4096, "Unsupported page size: 0x%x", in virt_arch_pgd_alloc()
18 vm->page_size); in virt_arch_pgd_alloc()
20 if (vm->pgd_created) in virt_arch_pgd_alloc()
25 vm->memslots[MEM_REGION_PT]); in virt_arch_pgd_alloc()
26 memset(addr_gpa2hva(vm, paddr), 0xff, PAGES_PER_REGION * vm->page_size); in virt_arch_pgd_alloc()
28 vm->pgd = paddr; in virt_arch_pgd_alloc()
29 vm->pgd_created = true; in virt_arch_pgd_alloc()
41 taddr = vm_phy_pages_alloc(vm, ri < 4 ? PAGES_PER_REGION : 1, in virt_alloc_region()
[all …]
/openbmc/linux/Documentation/virt/hyperv/
H A Doverview.rst1 .. SPDX-License-Identifier: GPL-2.0
6 enlightened guest on Microsoft's Hyper-V hypervisor. Hyper-V
7 consists primarily of a bare-metal hypervisor plus a virtual machine
10 partitions. In this documentation, references to Hyper-V usually
15 Hyper-V runs on x86/x64 and arm64 architectures, and Linux guests
16 are supported on both. The functionality and behavior of Hyper-V is
19 Linux Guest Communication with Hyper-V
20 --------------------------------------
21 Linux guests communicate with Hyper-V in four different ways:
24 some guest actions trap to Hyper-V. Hyper-V emulates the action and
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