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Merge tag 'kvmarm-6.2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

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KVM/arm64 updates for 6.2

- Enable the per-vcpu dirty-ring tracking mechanism, together with an
  option to keep the good old dirty log around for pages that are
  dirtied by something other than a vcpu.

- Switch to the relaxed parallel fault handling, using RCU to delay
  page table reclaim and giving better performance under load.

- Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping
  option, which multi-process VMMs such as crosvm rely on.

- Merge the pKVM shadow vcpu state tracking that allows the hypervisor
  to have its own view of a vcpu, keeping that state private.

- Add support for the PMUv3p5 architecture revision, bringing support
  for 64bit counters on systems that support it, and fix the
  no-quite-compliant CHAIN-ed counter support for the machines that
  actually exist out there.

- Fix a handful of minor issues around 52bit VA/PA support (64kB pages
  only) as a prefix of the oncoming support for 4kB and 16kB pages.

- Add/Enable/Fix a bunch of selftests covering memslots, breakpoints,
  stage-2 faults and access tracking. You name it, we got it, we
  probably broke it.

- Pick a small set of documentation and spelling fixes, because no
  good merge window would be complete without those.

As a side effect, this tag also drags:

- The 'kvmarm-fixes-6.1-3' tag as a dependency to the dirty-ring
  series

- A shared branch with the arm64 tree that repaints all the system
  registers to match the ARM ARM's naming, and resulting in
  interesting conflicts
This commit is contained in:
Paolo Bonzini
2022-12-06 12:27:39 -05:00
parent 1e79a9e3ab 753d734f3f
commit eb5618911a
91 changed files with 6095 additions and 1788 deletions
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13
tools/testing/selftests/kvm/lib/x86_64/processor.c
View File

@@ -499,7 +499,7 @@ 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);
vm->gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
dt->base = vm->gdt;
dt->limit = getpagesize();
@@ -509,7 +509,7 @@ 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);
vm->tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
memset(segp, 0, sizeof(*segp));
segp->base = vm->tss;
@@ -599,8 +599,9 @@ struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,
vm_vaddr_t stack_vaddr;
struct kvm_vcpu *vcpu;
stack_vaddr = vm_vaddr_alloc(vm, DEFAULT_STACK_PGS * getpagesize(),
DEFAULT_GUEST_STACK_VADDR_MIN);
stack_vaddr = __vm_vaddr_alloc(vm, DEFAULT_STACK_PGS * getpagesize(),
DEFAULT_GUEST_STACK_VADDR_MIN,
MEM_REGION_DATA);
vcpu = __vm_vcpu_add(vm, vcpu_id);
vcpu_init_cpuid(vcpu, kvm_get_supported_cpuid());
@@ -1093,8 +1094,8 @@ void vm_init_descriptor_tables(struct kvm_vm *vm)
extern void *idt_handlers;
int i;
vm->idt = vm_vaddr_alloc_page(vm);
vm->handlers = vm_vaddr_alloc_page(vm);
vm->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++)
set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0,