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authorLinus Torvalds <torvalds@linux-foundation.org>2020-09-13 08:34:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-09-13 08:34:47 -0700
commit84b1349972129918557b7593c37ae52855bdc2e8 (patch)
tree218547e7a9fc11bd2e9b18ead8f1c2b24e60a2c1 /include
parentb952e974300be3184049a125e7cba112fe659017 (diff)
parent37f66bbef0920429b8cb5eddba849ec4308a9f8e (diff)
downloadlinux-84b1349972129918557b7593c37ae52855bdc2e8.tar.bz2
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini: "A bit on the bigger side, mostly due to me being on vacation, then busy, then on parental leave, but there's nothing worrisome. ARM: - Multiple stolen time fixes, with a new capability to match x86 - Fix for hugetlbfs mappings when PUD and PMD are the same level - Fix for hugetlbfs mappings when PTE mappings are enforced (dirty logging, for example) - Fix tracing output of 64bit values x86: - nSVM state restore fixes - Async page fault fixes - Lots of small fixes everywhere" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (25 commits) KVM: emulator: more strict rsm checks. KVM: nSVM: more strict SMM checks when returning to nested guest SVM: nSVM: setup nested msr permission bitmap on nested state load SVM: nSVM: correctly restore GIF on vmexit from nesting after migration x86/kvm: don't forget to ACK async PF IRQ x86/kvm: properly use DEFINE_IDTENTRY_SYSVEC() macro KVM: VMX: Don't freeze guest when event delivery causes an APIC-access exit KVM: SVM: avoid emulation with stale next_rip KVM: x86: always allow writing '0' to MSR_KVM_ASYNC_PF_EN KVM: SVM: Periodically schedule when unregistering regions on destroy KVM: MIPS: Change the definition of kvm type kvm x86/mmu: use KVM_REQ_MMU_SYNC to sync when needed KVM: nVMX: Fix the update value of nested load IA32_PERF_GLOBAL_CTRL control KVM: fix memory leak in kvm_io_bus_unregister_dev() KVM: Check the allocation of pv cpu mask KVM: nVMX: Update VMCS02 when L2 PAE PDPTE updates detected KVM: arm64: Update page shift if stage 2 block mapping not supported KVM: arm64: Fix address truncation in traces KVM: arm64: Do not try to map PUDs when they are folded into PMD arm64/x86: KVM: Introduce steal-time cap ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/kvm_host.h31
-rw-r--r--include/uapi/linux/kvm.h6
2 files changed, 30 insertions, 7 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a23076765b4c..05e3c2fb3ef7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -749,25 +749,46 @@ int kvm_write_guest_offset_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,
gpa_t gpa, unsigned long len);
-#define __kvm_put_guest(kvm, gfn, offset, value, type) \
+#define __kvm_get_guest(kvm, gfn, offset, v) \
({ \
unsigned long __addr = gfn_to_hva(kvm, gfn); \
- type __user *__uaddr = (type __user *)(__addr + offset); \
+ typeof(v) __user *__uaddr = (typeof(__uaddr))(__addr + offset); \
int __ret = -EFAULT; \
\
if (!kvm_is_error_hva(__addr)) \
- __ret = put_user(value, __uaddr); \
+ __ret = get_user(v, __uaddr); \
+ __ret; \
+})
+
+#define kvm_get_guest(kvm, gpa, v) \
+({ \
+ gpa_t __gpa = gpa; \
+ struct kvm *__kvm = kvm; \
+ \
+ __kvm_get_guest(__kvm, __gpa >> PAGE_SHIFT, \
+ offset_in_page(__gpa), v); \
+})
+
+#define __kvm_put_guest(kvm, gfn, offset, v) \
+({ \
+ unsigned long __addr = gfn_to_hva(kvm, gfn); \
+ typeof(v) __user *__uaddr = (typeof(__uaddr))(__addr + offset); \
+ int __ret = -EFAULT; \
+ \
+ if (!kvm_is_error_hva(__addr)) \
+ __ret = put_user(v, __uaddr); \
if (!__ret) \
mark_page_dirty(kvm, gfn); \
__ret; \
})
-#define kvm_put_guest(kvm, gpa, value, type) \
+#define kvm_put_guest(kvm, gpa, v) \
({ \
gpa_t __gpa = gpa; \
struct kvm *__kvm = kvm; \
+ \
__kvm_put_guest(__kvm, __gpa >> PAGE_SHIFT, \
- offset_in_page(__gpa), (value), type); \
+ offset_in_page(__gpa), v); \
})
int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index f6d86033c4fa..7d8eced6f459 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -790,9 +790,10 @@ struct kvm_ppc_resize_hpt {
#define KVM_VM_PPC_HV 1
#define KVM_VM_PPC_PR 2
-/* on MIPS, 0 forces trap & emulate, 1 forces VZ ASE */
-#define KVM_VM_MIPS_TE 0
+/* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
+#define KVM_VM_MIPS_AUTO 0
#define KVM_VM_MIPS_VZ 1
+#define KVM_VM_MIPS_TE 2
#define KVM_S390_SIE_PAGE_OFFSET 1
@@ -1035,6 +1036,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_LAST_CPU 184
#define KVM_CAP_SMALLER_MAXPHYADDR 185
#define KVM_CAP_S390_DIAG318 186
+#define KVM_CAP_STEAL_TIME 187
#ifdef KVM_CAP_IRQ_ROUTING