Merge branch 'kvm-arm64/misc-5.9' into kvmarm-master/next (16314874) · Commits · EulixOS / Software / Kernel

arch/arm64/include/asm/kvm_emulate.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -345,7 +345,7 @@ static __always_inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vc
		return kvm_vcpu_get_esr(vcpu) & ESR_ELx_FSC_TYPE;
		}

		static __always_inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
		static __always_inline bool kvm_vcpu_abt_issea(const struct kvm_vcpu *vcpu)
		{
		switch (kvm_vcpu_trap_get_fault(vcpu)) {
		case FSC_SEA:

arch/arm64/kvm/hyp/include/hyp/switch.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -444,7 +444,7 @@ static inline bool fixup_guest_exit(struct kvm_vcpu vcpu, u64 exit_code)
		valid = kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_DABT_LOW &&
		kvm_vcpu_trap_get_fault_type(vcpu) == FSC_FAULT &&
		kvm_vcpu_dabt_isvalid(vcpu) &&
		!kvm_vcpu_dabt_isextabt(vcpu) &&
		!kvm_vcpu_abt_issea(vcpu) &&
		!kvm_vcpu_dabt_iss1tw(vcpu);

		if (valid) {

arch/arm64/kvm/mmio.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -145,12 +145,6 @@ int io_mem_abort(struct kvm_vcpu vcpu, struct kvm_run run,
		return -ENOSYS;
		}

		/* Page table accesses IO mem: tell guest to fix its TTBR */
		if (kvm_vcpu_dabt_iss1tw(vcpu)) {
		kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu));
		return 1;
		}

		/*
		* Prepare MMIO operation. First decode the syndrome data we get
		* from the CPU. Then try if some in-kernel emulation feels

arch/arm64/kvm/mmu.c

+17 −9

Original line number	Diff line number	Diff line
		@@ -2111,19 +2111,16 @@ int kvm_handle_guest_abort(struct kvm_vcpu vcpu, struct kvm_run run)
		is_iabt = kvm_vcpu_trap_is_iabt(vcpu);

		/* Synchronous External Abort? */
		if (kvm_vcpu_dabt_isextabt(vcpu)) {
		if (kvm_vcpu_abt_issea(vcpu)) {
		/*
		* For RAS the host kernel may handle this abort.
		* There is no need to pass the error into the guest.
		*/
		if (!kvm_handle_guest_sea(fault_ipa, kvm_vcpu_get_esr(vcpu)))
		return 1;

		if (unlikely(!is_iabt)) {
		if (kvm_handle_guest_sea(fault_ipa, kvm_vcpu_get_esr(vcpu)))
		kvm_inject_vabt(vcpu);

		return 1;
		}
		}

		trace_kvm_guest_fault(*vcpu_pc(vcpu), kvm_vcpu_get_esr(vcpu),
		kvm_vcpu_get_hfar(vcpu), fault_ipa);
		@@ -2145,12 +2142,23 @@ int kvm_handle_guest_abort(struct kvm_vcpu vcpu, struct kvm_run run)
		hva = gfn_to_hva_memslot_prot(memslot, gfn, &writable);
		write_fault = kvm_is_write_fault(vcpu);
		if (kvm_is_error_hva(hva) \|\| (write_fault && !writable)) {
		/*
		* The guest has put either its instructions or its page-tables
		* somewhere it shouldn't have. Userspace won't be able to do
		* anything about this (there's no syndrome for a start), so
		* re-inject the abort back into the guest.
		*/
		if (is_iabt) {
		/* Prefetch Abort on I/O address */
		ret = -ENOEXEC;
		goto out;
		}

		if (kvm_vcpu_dabt_iss1tw(vcpu)) {
		kvm_inject_dabt(vcpu, kvm_vcpu_get_hfar(vcpu));
		ret = 1;
		goto out_unlock;
		}

		/*
		* Check for a cache maintenance operation. Since we
		* ended-up here, we know it is outside of any memory
		@@ -2161,7 +2169,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu vcpu, struct kvm_run run)
		* So let's assume that the guest is just being
		* cautious, and skip the instruction.
		*/
		if (kvm_vcpu_dabt_is_cm(vcpu)) {
		if (kvm_is_error_hva(hva) && kvm_vcpu_dabt_is_cm(vcpu)) {
		kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
		ret = 1;
		goto out_unlock;

include/trace/events/kvm.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,7 @@
		ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI), ERSN(PAPR_HCALL), \
		ERSN(S390_UCONTROL), ERSN(WATCHDOG), ERSN(S390_TSCH), ERSN(EPR),\
		ERSN(SYSTEM_EVENT), ERSN(S390_STSI), ERSN(IOAPIC_EOI), \
		ERSN(HYPERV)
		ERSN(HYPERV), ERSN(ARM_NISV)

		TRACE_EVENT(kvm_userspace_exit,
		TP_PROTO(__u32 reason, int errno),