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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 21:34:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-12 21:34:04 +0300
commitb357bf6023a948cf6a9472f07a1b0caac0e4f8e8 (patch)
tree1471a2691cd56e8640cf6ad51e255b54903a164b /arch/arm64/kvm/hyp/hyp-entry.S
parent0725d4e1b8b08a60838db3a6e65c23ea8824a048 (diff)
parent766d3571d8e50d3a73b77043dc632226f9e6b389 (diff)
downloadlinux-b357bf6023a948cf6a9472f07a1b0caac0e4f8e8.tar.xz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini: "Small update for KVM: ARM: - lazy context-switching of FPSIMD registers on arm64 - "split" regions for vGIC redistributor s390: - cleanups for nested - clock handling - crypto - storage keys - control register bits x86: - many bugfixes - implement more Hyper-V super powers - implement lapic_timer_advance_ns even when the LAPIC timer is emulated using the processor's VMX preemption timer. - two security-related bugfixes at the top of the branch" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (79 commits) kvm: fix typo in flag name kvm: x86: use correct privilege level for sgdt/sidt/fxsave/fxrstor access KVM: x86: pass kvm_vcpu to kvm_read_guest_virt and kvm_write_guest_virt_system KVM: x86: introduce linear_{read,write}_system kvm: nVMX: Enforce cpl=0 for VMX instructions kvm: nVMX: Add support for "VMWRITE to any supported field" kvm: nVMX: Restrict VMX capability MSR changes KVM: VMX: Optimize tscdeadline timer latency KVM: docs: nVMX: Remove known limitations as they do not exist now KVM: docs: mmu: KVM support exposing SLAT to guests kvm: no need to check return value of debugfs_create functions kvm: Make VM ioctl do valloc for some archs kvm: Change return type to vm_fault_t KVM: docs: mmu: Fix link to NPT presentation from KVM Forum 2008 kvm: x86: Amend the KVM_GET_SUPPORTED_CPUID API documentation KVM: x86: hyperv: declare KVM_CAP_HYPERV_TLBFLUSH capability KVM: x86: hyperv: simplistic HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE}_EX implementation KVM: x86: hyperv: simplistic HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE} implementation KVM: introduce kvm_make_vcpus_request_mask() API KVM: x86: hyperv: do rep check for each hypercall separately ...
Diffstat (limited to 'arch/arm64/kvm/hyp/hyp-entry.S')
-rw-r--r--arch/arm64/kvm/hyp/hyp-entry.S19
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S
index 05d836979032..24b4fbafe3e4 100644
--- a/arch/arm64/kvm/hyp/hyp-entry.S
+++ b/arch/arm64/kvm/hyp/hyp-entry.S
@@ -149,25 +149,6 @@ wa_epilogue:
el1_trap:
get_vcpu_ptr x1, x0
-
- mrs x0, esr_el2
- lsr x0, x0, #ESR_ELx_EC_SHIFT
- /*
- * x0: ESR_EC
- * x1: vcpu pointer
- */
-
- /*
- * We trap the first access to the FP/SIMD to save the host context
- * and restore the guest context lazily.
- * If FP/SIMD is not implemented, handle the trap and inject an
- * undefined instruction exception to the guest.
- */
-alternative_if_not ARM64_HAS_NO_FPSIMD
- cmp x0, #ESR_ELx_EC_FP_ASIMD
- b.eq __fpsimd_guest_restore
-alternative_else_nop_endif
-
mov x0, #ARM_EXCEPTION_TRAP
b __guest_exit