From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Peter Xu <peterx@redhat.com>,
Sean Christopherson <seanjc@google.com>,
Peter Shier <pshier@google.com>
Subject: [PATCH 04/19] KVM: selftests: Unconditionally use memslot 0 for x86's GDT/TSS setup
Date: Tue, 22 Jun 2021 13:05:14 -0700 [thread overview]
Message-ID: <20210622200529.3650424-5-seanjc@google.com> (raw)
In-Reply-To: <20210622200529.3650424-1-seanjc@google.com>
Refactor x86's GDT/TSS allocations to for memslot '0' at its
vm_addr_alloc() call sites instead of passing in '0' from on high. This
is a step toward using a common helper for allocating pages.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
.../selftests/kvm/lib/x86_64/processor.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index efe235044421..b1fb4c60dd73 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -518,24 +518,22 @@ vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
exit(EXIT_FAILURE);
}
-static void kvm_setup_gdt(struct kvm_vm *vm, struct kvm_dtable *dt, int gdt_memslot,
- int pgd_memslot)
+static void kvm_setup_gdt(struct kvm_vm *vm, struct kvm_dtable *dt)
{
if (!vm->gdt)
vm->gdt = vm_vaddr_alloc(vm, getpagesize(),
- KVM_UTIL_MIN_VADDR, gdt_memslot, pgd_memslot);
+ KVM_UTIL_MIN_VADDR, 0, 0);
dt->base = vm->gdt;
dt->limit = getpagesize();
}
static void kvm_setup_tss_64bit(struct kvm_vm *vm, struct kvm_segment *segp,
- int selector, int gdt_memslot,
- int pgd_memslot)
+ int selector)
{
if (!vm->tss)
vm->tss = vm_vaddr_alloc(vm, getpagesize(),
- KVM_UTIL_MIN_VADDR, gdt_memslot, pgd_memslot);
+ KVM_UTIL_MIN_VADDR, 0, 0);
memset(segp, 0, sizeof(*segp));
segp->base = vm->tss;
@@ -546,7 +544,7 @@ static void kvm_setup_tss_64bit(struct kvm_vm *vm, struct kvm_segment *segp,
kvm_seg_fill_gdt_64bit(vm, segp);
}
-static void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_memslot)
+static void vcpu_setup(struct kvm_vm *vm, int vcpuid)
{
struct kvm_sregs sregs;
@@ -555,7 +553,7 @@ static void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_m
sregs.idt.limit = 0;
- kvm_setup_gdt(vm, &sregs.gdt, gdt_memslot, pgd_memslot);
+ kvm_setup_gdt(vm, &sregs.gdt);
switch (vm->mode) {
case VM_MODE_PXXV48_4K:
@@ -567,7 +565,7 @@ static void vcpu_setup(struct kvm_vm *vm, int vcpuid, int pgd_memslot, int gdt_m
kvm_seg_set_kernel_code_64bit(vm, DEFAULT_CODE_SELECTOR, &sregs.cs);
kvm_seg_set_kernel_data_64bit(vm, DEFAULT_DATA_SELECTOR, &sregs.ds);
kvm_seg_set_kernel_data_64bit(vm, DEFAULT_DATA_SELECTOR, &sregs.es);
- kvm_setup_tss_64bit(vm, &sregs.tr, 0x18, gdt_memslot, pgd_memslot);
+ kvm_setup_tss_64bit(vm, &sregs.tr, 0x18);
break;
default:
@@ -588,7 +586,7 @@ void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
/* Create VCPU */
vm_vcpu_add(vm, vcpuid);
- vcpu_setup(vm, vcpuid, 0, 0);
+ vcpu_setup(vm, vcpuid);
/* Setup guest general purpose registers */
vcpu_regs_get(vm, vcpuid, ®s);
--
2.32.0.288.g62a8d224e6-goog
next prev parent reply other threads:[~2021-06-22 20:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-22 20:05 [PATCH 00/19] KVM: selftests: Add x86 mmu_role test and cleanups Sean Christopherson
2021-06-22 20:05 ` [PATCH 01/19] KVM: selftests: Remove errant asm/barrier.h include to fix arm64 build Sean Christopherson
2021-06-22 20:05 ` [PATCH 02/19] KVM: selftests: Zero out the correct page in the Hyper-V features test Sean Christopherson
2021-06-22 20:05 ` [PATCH 03/19] KVM: selftests: Unconditionally use memslot 0 when loading elf binary Sean Christopherson
2021-06-22 20:05 ` Sean Christopherson [this message]
2021-06-22 20:05 ` [PATCH 05/19] KVM: selftests: Use "standard" min virtual address for Hyper-V pages Sean Christopherson
2021-06-22 20:05 ` [PATCH 06/19] KVM: selftests: Add helpers to allocate N pages of virtual memory Sean Christopherson
2021-06-22 20:05 ` [PATCH 07/19] KVM: selftests: Lower the min virtual address for misc page allocations Sean Christopherson
2021-06-22 20:05 ` [PATCH 08/19] KVM: selftests: Use alloc_page helper for x86-64's GDT/ITD/TSS allocations Sean Christopherson
2021-06-22 20:05 ` [PATCH 09/19] KVM: selftests: Use alloc page helper for xAPIC IPI test Sean Christopherson
2021-06-22 20:05 ` [PATCH 10/19] KVM: selftests: Use "standard" min virtual address for CPUID test alloc Sean Christopherson
2021-06-22 20:05 ` [PATCH 11/19] KVM: selftest: Unconditionally use memslot 0 for vaddr allocations Sean Christopherson
2021-06-22 20:05 ` [PATCH 12/19] KVM: selftests: Unconditionally use memslot '0' for page table allocations Sean Christopherson
2021-06-22 20:05 ` [PATCH 13/19] KVM: selftests: Unconditionally allocate EPT tables in memslot 0 Sean Christopherson
2021-06-22 20:05 ` [PATCH 14/19] KVM: selftests: Add wrapper to allocate page table page Sean Christopherson
2021-06-22 20:05 ` [PATCH 15/19] KVM: selftests: Rename x86's page table "address" to "pfn" Sean Christopherson
2021-06-22 20:05 ` [PATCH 16/19] KVM: selfests: Add PTE helper for x86-64 in preparation for hugepages Sean Christopherson
2021-06-22 20:05 ` [PATCH 17/19] KVM: selftests: Genericize upper level page table entry struct Sean Christopherson
2021-06-22 20:05 ` [PATCH 18/19] KVM: selftests: Add hugepage support for x86-64 Sean Christopherson
2021-06-22 20:05 ` [PATCH 19/19] KVM: sefltests: Add x86-64 test to verify MMU reacts to CPUID updates Sean Christopherson
2022-03-02 7:45 ` Like Xu
2021-06-23 13:07 ` [PATCH 00/19] KVM: selftests: Add x86 mmu_role test and cleanups Paolo Bonzini
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