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Commit 3cd1d327 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm 

Pull KVM fixes from Paolo Bonzini:
 "PPC:
   - fix bug leading to lost IPIs and smp_call_function_many() lockups
     on POWER9

  ARM:
   - locking fix
   - reset fix
   - GICv2 multi-source SGI injection fix
   - GICv2-on-v3 MMIO synchronization fix
   - make the console less verbose.

  x86:
   - fix device passthrough on AMD SME"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix device passthrough when SME is active
  kvm: arm/arm64: vgic-v3: Tighten synchronization for guests using v2 on v3
  KVM: arm/arm64: vgic: Don't populate multiple LRs with the same vintid
  KVM: arm/arm64: Reduce verbosity of KVM init log
  KVM: arm/arm64: Reset mapped IRQs on VM reset
  KVM: arm/arm64: Avoid vcpu_load for other vcpu ioctls than KVM_RUN
  KVM: arm/arm64: vgic: Add missing irq_lock to vgic_mmio_read_pending
  KVM: PPC: Book3S HV: Fix trap number return from __kvmppc_vcore_entry
parents 9ef0f88f daaf216c

arch/arm64/kvm/guest.c

+0 −3
Original line number Original line Diff line number Diff line
@@ -363,8 +363,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, 
{

{

	int ret = 0;

	int ret = 0;





	vcpu_load(vcpu);



	trace_kvm_set_guest_debug(vcpu, dbg->control);

	trace_kvm_set_guest_debug(vcpu, dbg->control);





	if (dbg->control & ~KVM_GUESTDBG_VALID_MASK) {

	if (dbg->control & ~KVM_GUESTDBG_VALID_MASK) {
@@ -386,7 +384,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, 
	}

	}





out:

out:

	vcpu_put(vcpu);

	return ret;

	return ret;

}

}

arch/powerpc/kvm/book3s_hv_rmhandlers.S

+5 −5
Original line number Original line Diff line number Diff line
@@ -320,7 +320,6 @@ kvm_novcpu_exit: 
	stw	r12, STACK_SLOT_TRAP(r1)

	stw	r12, STACK_SLOT_TRAP(r1)

	bl	kvmhv_commence_exit

	bl	kvmhv_commence_exit

	nop

	nop

	lwz	r12, STACK_SLOT_TRAP(r1)

	b	kvmhv_switch_to_host

	b	kvmhv_switch_to_host





/*

/*
@@ -1220,6 +1219,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) 




secondary_too_late:

secondary_too_late:

	li	r12, 0

	li	r12, 0

	stw	r12, STACK_SLOT_TRAP(r1)

	cmpdi	r4, 0

	cmpdi	r4, 0

	beq	11f

	beq	11f

	stw	r12, VCPU_TRAP(r4)

	stw	r12, VCPU_TRAP(r4)
@@ -1558,12 +1558,12 @@ mc_cont: 
3:	stw	r5,VCPU_SLB_MAX(r9)

3:	stw	r5,VCPU_SLB_MAX(r9)





guest_bypass:

guest_bypass:

	stw	r12, STACK_SLOT_TRAP(r1)

	mr 	r3, r12

	mr 	r3, r12

	/* Increment exit count, poke other threads to exit */

	/* Increment exit count, poke other threads to exit */

	bl	kvmhv_commence_exit

	bl	kvmhv_commence_exit

	nop

	nop

	ld	r9, HSTATE_KVM_VCPU(r13)

	ld	r9, HSTATE_KVM_VCPU(r13)

	lwz	r12, VCPU_TRAP(r9)





	/* Stop others sending VCPU interrupts to this physical CPU */

	/* Stop others sending VCPU interrupts to this physical CPU */

	li	r0, -1

	li	r0, -1
@@ -1898,6 +1898,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1) 
	 * POWER7/POWER8 guest -> host partition switch code.

	 * POWER7/POWER8 guest -> host partition switch code.

	 * We don't have to lock against tlbies but we do

	 * We don't have to lock against tlbies but we do

	 * have to coordinate the hardware threads.

	 * have to coordinate the hardware threads.

	 * Here STACK_SLOT_TRAP(r1) contains the trap number.

	 */

	 */

kvmhv_switch_to_host:

kvmhv_switch_to_host:

	/* Secondary threads wait for primary to do partition switch */

	/* Secondary threads wait for primary to do partition switch */
@@ -1950,12 +1951,12 @@ BEGIN_FTR_SECTION 
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)

END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)





	/* If HMI, call kvmppc_realmode_hmi_handler() */

	/* If HMI, call kvmppc_realmode_hmi_handler() */

	lwz	r12, STACK_SLOT_TRAP(r1)

	cmpwi	r12, BOOK3S_INTERRUPT_HMI

	cmpwi	r12, BOOK3S_INTERRUPT_HMI

	bne	27f

	bne	27f

	bl	kvmppc_realmode_hmi_handler

	bl	kvmppc_realmode_hmi_handler

	nop

	nop

	cmpdi	r3, 0

	cmpdi	r3, 0

	li	r12, BOOK3S_INTERRUPT_HMI

	/*

	/*

	 * At this point kvmppc_realmode_hmi_handler may have resync-ed

	 * At this point kvmppc_realmode_hmi_handler may have resync-ed

	 * the TB, and if it has, we must not subtract the guest timebase

	 * the TB, and if it has, we must not subtract the guest timebase
@@ -2008,10 +2009,8 @@ BEGIN_FTR_SECTION 
	lwz	r8, KVM_SPLIT_DO_RESTORE(r3)

	lwz	r8, KVM_SPLIT_DO_RESTORE(r3)

	cmpwi	r8, 0

	cmpwi	r8, 0

	beq	47f

	beq	47f

	stw	r12, STACK_SLOT_TRAP(r1)

	bl	kvmhv_p9_restore_lpcr

	bl	kvmhv_p9_restore_lpcr

	nop

	nop

	lwz	r12, STACK_SLOT_TRAP(r1)

	b	48f

	b	48f

47:

47:

END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)

END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
@@ -2049,6 +2048,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX) 
	li	r0, KVM_GUEST_MODE_NONE

	li	r0, KVM_GUEST_MODE_NONE

	stb	r0, HSTATE_IN_GUEST(r13)

	stb	r0, HSTATE_IN_GUEST(r13)





	lwz	r12, STACK_SLOT_TRAP(r1)	/* return trap # in r12 */

	ld	r0, SFS+PPC_LR_STKOFF(r1)

	ld	r0, SFS+PPC_LR_STKOFF(r1)

	addi	r1, r1, SFS

	addi	r1, r1, SFS

	mtlr	r0

	mtlr	r0

arch/x86/kvm/mmu.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -2770,9 +2770,11 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep, 
	else

	else

		pte_access &= ~ACC_WRITE_MASK;

		pte_access &= ~ACC_WRITE_MASK;





	spte |= (u64)pfn << PAGE_SHIFT;

	if (!kvm_is_mmio_pfn(pfn))

		spte |= shadow_me_mask;

		spte |= shadow_me_mask;





	spte |= (u64)pfn << PAGE_SHIFT;



	if (pte_access & ACC_WRITE_MASK) {

	if (pte_access & ACC_WRITE_MASK) {





		/*

		/*

include/kvm/arm_vgic.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -360,6 +360,7 @@ void kvm_vgic_put(struct kvm_vcpu *vcpu); 
bool kvm_vcpu_has_pending_irqs(struct kvm_vcpu *vcpu);

bool kvm_vcpu_has_pending_irqs(struct kvm_vcpu *vcpu);

void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu);

void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu);

void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu);

void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu);

void kvm_vgic_reset_mapped_irq(struct kvm_vcpu *vcpu, u32 vintid);





void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg);

void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg);

include/linux/irqchip/arm-gic-v3.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -503,6 +503,7 @@ 




#define ICH_HCR_EN			(1 << 0)

#define ICH_HCR_EN			(1 << 0)

#define ICH_HCR_UIE			(1 << 1)

#define ICH_HCR_UIE			(1 << 1)

#define ICH_HCR_NPIE			(1 << 3)

#define ICH_HCR_TC			(1 << 10)

#define ICH_HCR_TC			(1 << 10)

#define ICH_HCR_TALL0			(1 << 11)

#define ICH_HCR_TALL0			(1 << 11)

#define ICH_HCR_TALL1			(1 << 12)

#define ICH_HCR_TALL1			(1 << 12)