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Message-ID: <20240314232637.2538648-4-seanjc@google.com>
Date: Thu, 14 Mar 2024 16:26:22 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>,
Paolo Bonzini <pbonzini@...hat.com>, Christian Borntraeger <borntraeger@...ux.ibm.com>,
Janosch Frank <frankja@...ux.ibm.com>, Claudio Imbrenda <imbrenda@...ux.ibm.com>,
Sean Christopherson <seanjc@...gle.com>, Anup Patel <anup@...infault.org>,
Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>
Cc: linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
Ackerley Tng <ackerleytng@...gle.com>
Subject: [PATCH 03/18] KVM: selftests: Move GDT, IDT, and TSS fields to x86's kvm_vm_arch
Now that kvm_vm_arch exists, move the GDT, IDT, and TSS fields to x86's
implementation, as the structures are firmly x86-only.
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
.../testing/selftests/kvm/include/kvm_util.h | 3 ---
.../kvm/include/x86_64/kvm_util_arch.h | 6 +++++
.../selftests/kvm/lib/x86_64/processor.c | 22 +++++++++----------
.../kvm/x86_64/svm_nested_shutdown_test.c | 2 +-
.../kvm/x86_64/svm_nested_soft_inject_test.c | 2 +-
5 files changed, 19 insertions(+), 16 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
index acdcddf78e3f..58d6a4d6ce4f 100644
--- a/tools/testing/selftests/kvm/include/kvm_util.h
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -94,9 +94,6 @@ struct kvm_vm {
bool pgd_created;
vm_paddr_t ucall_mmio_addr;
vm_paddr_t pgd;
- vm_vaddr_t gdt;
- vm_vaddr_t tss;
- vm_vaddr_t idt;
vm_vaddr_t handlers;
uint32_t dirty_ring_size;
uint64_t gpa_tag_mask;
diff --git a/tools/testing/selftests/kvm/include/x86_64/kvm_util_arch.h b/tools/testing/selftests/kvm/include/x86_64/kvm_util_arch.h
index 9f1725192aa2..b14ff3a88b4a 100644
--- a/tools/testing/selftests/kvm/include/x86_64/kvm_util_arch.h
+++ b/tools/testing/selftests/kvm/include/x86_64/kvm_util_arch.h
@@ -5,7 +5,13 @@
#include <stdbool.h>
#include <stdint.h>
+#include "kvm_util_types.h"
+
struct kvm_vm_arch {
+ vm_vaddr_t gdt;
+ vm_vaddr_t tss;
+ vm_vaddr_t idt;
+
uint64_t c_bit;
uint64_t s_bit;
int sev_fd;
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index 74a4c736c9ae..45f965c052a1 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -417,7 +417,7 @@ static void kvm_seg_set_unusable(struct kvm_segment *segp)
static void kvm_seg_fill_gdt_64bit(struct kvm_vm *vm, struct kvm_segment *segp)
{
- void *gdt = addr_gva2hva(vm, vm->gdt);
+ void *gdt = addr_gva2hva(vm, vm->arch.gdt);
struct desc64 *desc = gdt + (segp->selector >> 3) * 8;
desc->limit0 = segp->limit & 0xFFFF;
@@ -518,21 +518,21 @@ vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
static void kvm_setup_gdt(struct kvm_vm *vm, struct kvm_dtable *dt)
{
- if (!vm->gdt)
- vm->gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+ if (!vm->arch.gdt)
+ vm->arch.gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
- dt->base = vm->gdt;
+ dt->base = vm->arch.gdt;
dt->limit = getpagesize();
}
static void kvm_setup_tss_64bit(struct kvm_vm *vm, struct kvm_segment *segp,
int selector)
{
- if (!vm->tss)
- vm->tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+ if (!vm->arch.tss)
+ vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
memset(segp, 0, sizeof(*segp));
- segp->base = vm->tss;
+ segp->base = vm->arch.tss;
segp->limit = 0x67;
segp->selector = selector;
segp->type = 0xb;
@@ -1091,7 +1091,7 @@ static void set_idt_entry(struct kvm_vm *vm, int vector, unsigned long addr,
int dpl, unsigned short selector)
{
struct idt_entry *base =
- (struct idt_entry *)addr_gva2hva(vm, vm->idt);
+ (struct idt_entry *)addr_gva2hva(vm, vm->arch.idt);
struct idt_entry *e = &base[vector];
memset(e, 0, sizeof(*e));
@@ -1144,7 +1144,7 @@ void vm_init_descriptor_tables(struct kvm_vm *vm)
extern void *idt_handlers;
int i;
- vm->idt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+ vm->arch.idt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
vm->handlers = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
/* Handlers have the same address in both address spaces.*/
for (i = 0; i < NUM_INTERRUPTS; i++)
@@ -1158,9 +1158,9 @@ void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu)
struct kvm_sregs sregs;
vcpu_sregs_get(vcpu, &sregs);
- sregs.idt.base = vm->idt;
+ sregs.idt.base = vm->arch.idt;
sregs.idt.limit = NUM_INTERRUPTS * sizeof(struct idt_entry) - 1;
- sregs.gdt.base = vm->gdt;
+ sregs.gdt.base = vm->arch.gdt;
sregs.gdt.limit = getpagesize() - 1;
kvm_seg_set_kernel_data_64bit(NULL, DEFAULT_DATA_SELECTOR, &sregs.gs);
vcpu_sregs_set(vcpu, &sregs);
diff --git a/tools/testing/selftests/kvm/x86_64/svm_nested_shutdown_test.c b/tools/testing/selftests/kvm/x86_64/svm_nested_shutdown_test.c
index d6fcdcc3af31..f4a1137e04ab 100644
--- a/tools/testing/selftests/kvm/x86_64/svm_nested_shutdown_test.c
+++ b/tools/testing/selftests/kvm/x86_64/svm_nested_shutdown_test.c
@@ -53,7 +53,7 @@ int main(int argc, char *argv[])
vcpu_alloc_svm(vm, &svm_gva);
- vcpu_args_set(vcpu, 2, svm_gva, vm->idt);
+ vcpu_args_set(vcpu, 2, svm_gva, vm->arch.idt);
vcpu_run(vcpu);
TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_SHUTDOWN);
diff --git a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c b/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
index 0c7ce3d4e83a..2478a9e50743 100644
--- a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
+++ b/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
@@ -166,7 +166,7 @@ static void run_test(bool is_nmi)
idt_alt_vm = vm_vaddr_alloc_page(vm);
idt_alt = addr_gva2hva(vm, idt_alt_vm);
- idt = addr_gva2hva(vm, vm->idt);
+ idt = addr_gva2hva(vm, vm->arch.idt);
memcpy(idt_alt, idt, getpagesize());
} else {
idt_alt_vm = 0;
--
2.44.0.291.gc1ea87d7ee-goog
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