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From: cdall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 07/55] KVM: arm/arm64: Add virtual EL2 state emulation framework
Date: Wed, 22 Feb 2017 12:12:11 +0100	[thread overview]
Message-ID: <20170222111211.GC26976@cbox> (raw)
In-Reply-To: <1483943091-1364-8-git-send-email-jintack@cs.columbia.edu>

On Mon, Jan 09, 2017 at 01:24:03AM -0500, Jintack Lim wrote:
> From: Christoffer Dall <christoffer.dall@linaro.org>
> 
> Add a framework to set up the guest's context depending on the guest's
> exception level. A chosen context is written to hardware in the lowvisor.
> We don't set the virtual EL2 context yet.

We need to improve this commit message.

I think this commit is just trying to prepare to be able to switch
between the normal EL1 sysreg state or using the shadow sysreg to
emulate virtual EL2, but without any functional change so far.

Is that correct?

> 
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> Signed-off-by: Jintack Lim <jintack@cs.columbia.edu>
> ---
>  arch/arm/include/asm/kvm_emulate.h   |   4 ++
>  arch/arm/kvm/arm.c                   |   5 ++
>  arch/arm64/include/asm/kvm_emulate.h |   4 ++
>  arch/arm64/kvm/Makefile              |   2 +-
>  arch/arm64/kvm/context.c             |  49 ++++++++++++++++
>  arch/arm64/kvm/hyp/sysreg-sr.c       | 109 +++++++++++++++++++----------------
>  6 files changed, 122 insertions(+), 51 deletions(-)
>  create mode 100644 arch/arm64/kvm/context.c
> 
> diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
> index 399cd75e..0a03b7d 100644
> --- a/arch/arm/include/asm/kvm_emulate.h
> +++ b/arch/arm/include/asm/kvm_emulate.h
> @@ -47,6 +47,10 @@ static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num,
>  void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
>  void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
>  
> +static inline void kvm_arm_setup_shadow_state(struct kvm_vcpu *vcpu) { };
> +static inline void kvm_arm_restore_shadow_state(struct kvm_vcpu *vcpu) { };
> +static inline void kvm_arm_init_cpu_context(kvm_cpu_context_t *cpu_ctxt) { };
> +
>  static inline bool kvm_condition_valid(const struct kvm_vcpu *vcpu)
>  {
>  	return kvm_condition_valid32(vcpu);
> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
> index d2dfa32..436bf5a 100644
> --- a/arch/arm/kvm/arm.c
> +++ b/arch/arm/kvm/arm.c
> @@ -41,6 +41,7 @@
>  #include <asm/virt.h>
>  #include <asm/kvm_arm.h>
>  #include <asm/kvm_asm.h>
> +#include <asm/kvm_hyp.h>
>  #include <asm/kvm_mmu.h>
>  #include <asm/kvm_emulate.h>
>  #include <asm/kvm_coproc.h>
> @@ -646,6 +647,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
>  		}
>  
>  		kvm_arm_setup_debug(vcpu);
> +		kvm_arm_setup_shadow_state(vcpu);
>  
>  		/**************************************************************
>  		 * Enter the guest
> @@ -662,6 +664,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
>  		 * Back from guest
>  		 *************************************************************/
>  
> +		kvm_arm_restore_shadow_state(vcpu);
>  		kvm_arm_clear_debug(vcpu);
>  
>  		/*
> @@ -1369,6 +1372,8 @@ static int init_hyp_mode(void)
>  			kvm_err("Cannot map host CPU state: %d\n", err);
>  			goto out_err;
>  		}
> +
> +		kvm_arm_init_cpu_context(cpu_ctxt);
>  	}
>  
>  	kvm_info("Hyp mode initialized successfully\n");
> diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
> index 830be2e..8892c82 100644
> --- a/arch/arm64/include/asm/kvm_emulate.h
> +++ b/arch/arm64/include/asm/kvm_emulate.h
> @@ -42,6 +42,10 @@
>  void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
>  void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
>  
> +void kvm_arm_setup_shadow_state(struct kvm_vcpu *vcpu);
> +void kvm_arm_restore_shadow_state(struct kvm_vcpu *vcpu);
> +void kvm_arm_init_cpu_context(kvm_cpu_context_t *cpu_ctxt);
> +
>  static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu)
>  {
>  	vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS;
> diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
> index d50a82a..7811d27 100644
> --- a/arch/arm64/kvm/Makefile
> +++ b/arch/arm64/kvm/Makefile
> @@ -16,7 +16,7 @@ kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o $(KVM)/e
>  kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/arm.o $(ARM)/mmu.o $(ARM)/mmio.o
>  kvm-$(CONFIG_KVM_ARM_HOST) += $(ARM)/psci.o $(ARM)/perf.o
>  
> -kvm-$(CONFIG_KVM_ARM_HOST) += inject_fault.o regmap.o
> +kvm-$(CONFIG_KVM_ARM_HOST) += inject_fault.o regmap.o context.o
>  kvm-$(CONFIG_KVM_ARM_HOST) += hyp.o hyp-init.o handle_exit.o
>  kvm-$(CONFIG_KVM_ARM_HOST) += guest.o debug.o reset.o sys_regs.o sys_regs_generic_v8.o
>  kvm-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/aarch32.o
> diff --git a/arch/arm64/kvm/context.c b/arch/arm64/kvm/context.c
> new file mode 100644
> index 0000000..320afc6
> --- /dev/null
> +++ b/arch/arm64/kvm/context.c
> @@ -0,0 +1,49 @@
> +/*
> + * Copyright (C) 2016 - Linaro Ltd.
> + * Author: Christoffer Dall <christoffer.dall@linaro.org>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include <linux/kvm_host.h>
> +#include <asm/kvm_emulate.h>
> +
> +/**
> + * kvm_arm_setup_shadow_state -- prepare shadow state based on emulated mode
> + * @vcpu: The VCPU pointer
> + */
> +void kvm_arm_setup_shadow_state(struct kvm_vcpu *vcpu)
> +{
> +	struct kvm_cpu_context *ctxt = &vcpu->arch.ctxt;
> +
> +	ctxt->hw_pstate = *vcpu_cpsr(vcpu);
> +	ctxt->hw_sys_regs = ctxt->sys_regs;
> +	ctxt->hw_sp_el1 = ctxt->gp_regs.sp_el1;
> +}
> +
> +/**
> + * kvm_arm_restore_shadow_state -- write back shadow state from guest
> + * @vcpu: The VCPU pointer
> + */
> +void kvm_arm_restore_shadow_state(struct kvm_vcpu *vcpu)
> +{
> +	struct kvm_cpu_context *ctxt = &vcpu->arch.ctxt;
> +
> +	*vcpu_cpsr(vcpu) = ctxt->hw_pstate;
> +	ctxt->gp_regs.sp_el1 = ctxt->hw_sp_el1;
> +}
> +
> +void kvm_arm_init_cpu_context(kvm_cpu_context_t *cpu_ctxt)
> +{
> +	cpu_ctxt->hw_sys_regs = &cpu_ctxt->sys_regs[0];
> +}
> diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c
> index 9341376..f2a1b32 100644
> --- a/arch/arm64/kvm/hyp/sysreg-sr.c
> +++ b/arch/arm64/kvm/hyp/sysreg-sr.c
> @@ -19,6 +19,7 @@
>  #include <linux/kvm_host.h>
>  
>  #include <asm/kvm_asm.h>
> +#include <asm/kvm_emulate.h>
>  #include <asm/kvm_hyp.h>
>  
>  /* Yes, this does nothing, on purpose */
> @@ -33,37 +34,41 @@ static void __hyp_text __sysreg_do_nothing(struct kvm_cpu_context *ctxt) { }
>  
>  static void __hyp_text __sysreg_save_common_state(struct kvm_cpu_context *ctxt)
>  {
> -	ctxt->sys_regs[ACTLR_EL1]	= read_sysreg(actlr_el1);
> -	ctxt->sys_regs[TPIDR_EL0]	= read_sysreg(tpidr_el0);
> -	ctxt->sys_regs[TPIDRRO_EL0]	= read_sysreg(tpidrro_el0);
> -	ctxt->sys_regs[TPIDR_EL1]	= read_sysreg(tpidr_el1);
> -	ctxt->sys_regs[MDSCR_EL1]	= read_sysreg(mdscr_el1);
> +	u64 *sys_regs = kern_hyp_va(ctxt->hw_sys_regs);
> +
> +	sys_regs[ACTLR_EL1]	= read_sysreg(actlr_el1);
> +	sys_regs[TPIDR_EL0]	= read_sysreg(tpidr_el0);
> +	sys_regs[TPIDRRO_EL0]	= read_sysreg(tpidrro_el0);
> +	sys_regs[TPIDR_EL1]	= read_sysreg(tpidr_el1);
> +	sys_regs[MDSCR_EL1]	= read_sysreg(mdscr_el1);
>  	ctxt->gp_regs.regs.sp		= read_sysreg(sp_el0);
>  	ctxt->gp_regs.regs.pc		= read_sysreg_el2(elr);
> -	ctxt->gp_regs.regs.pstate	= read_sysreg_el2(spsr);
> +	ctxt->hw_pstate			= read_sysreg_el2(spsr);
>  }
>  
>  static void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt)
>  {
> -	ctxt->sys_regs[MPIDR_EL1]	= read_sysreg(vmpidr_el2);
> -	ctxt->sys_regs[CSSELR_EL1]	= read_sysreg(csselr_el1);
> -	ctxt->sys_regs[SCTLR_EL1]	= read_sysreg_el1(sctlr);
> -	ctxt->sys_regs[CPACR_EL1]	= read_sysreg_el1(cpacr);
> -	ctxt->sys_regs[TTBR0_EL1]	= read_sysreg_el1(ttbr0);
> -	ctxt->sys_regs[TTBR1_EL1]	= read_sysreg_el1(ttbr1);
> -	ctxt->sys_regs[TCR_EL1]		= read_sysreg_el1(tcr);
> -	ctxt->sys_regs[ESR_EL1]		= read_sysreg_el1(esr);
> -	ctxt->sys_regs[AFSR0_EL1]	= read_sysreg_el1(afsr0);
> -	ctxt->sys_regs[AFSR1_EL1]	= read_sysreg_el1(afsr1);
> -	ctxt->sys_regs[FAR_EL1]		= read_sysreg_el1(far);
> -	ctxt->sys_regs[MAIR_EL1]	= read_sysreg_el1(mair);
> -	ctxt->sys_regs[VBAR_EL1]	= read_sysreg_el1(vbar);
> -	ctxt->sys_regs[CONTEXTIDR_EL1]	= read_sysreg_el1(contextidr);
> -	ctxt->sys_regs[AMAIR_EL1]	= read_sysreg_el1(amair);
> -	ctxt->sys_regs[CNTKCTL_EL1]	= read_sysreg_el1(cntkctl);
> -	ctxt->sys_regs[PAR_EL1]		= read_sysreg(par_el1);
> -
> -	ctxt->gp_regs.sp_el1		= read_sysreg(sp_el1);
> +	u64 *sys_regs = kern_hyp_va(ctxt->hw_sys_regs);
> +
> +	sys_regs[MPIDR_EL1]	= read_sysreg(vmpidr_el2);
> +	sys_regs[CSSELR_EL1]	= read_sysreg(csselr_el1);
> +	sys_regs[SCTLR_EL1]	= read_sysreg_el1(sctlr);
> +	sys_regs[CPACR_EL1]	= read_sysreg_el1(cpacr);
> +	sys_regs[TTBR0_EL1]	= read_sysreg_el1(ttbr0);
> +	sys_regs[TTBR1_EL1]	= read_sysreg_el1(ttbr1);
> +	sys_regs[TCR_EL1]	= read_sysreg_el1(tcr);
> +	sys_regs[ESR_EL1]	= read_sysreg_el1(esr);
> +	sys_regs[AFSR0_EL1]	= read_sysreg_el1(afsr0);
> +	sys_regs[AFSR1_EL1]	= read_sysreg_el1(afsr1);
> +	sys_regs[FAR_EL1]	= read_sysreg_el1(far);
> +	sys_regs[MAIR_EL1]	= read_sysreg_el1(mair);
> +	sys_regs[VBAR_EL1]	= read_sysreg_el1(vbar);
> +	sys_regs[CONTEXTIDR_EL1]	= read_sysreg_el1(contextidr);
> +	sys_regs[AMAIR_EL1]	= read_sysreg_el1(amair);
> +	sys_regs[CNTKCTL_EL1]	= read_sysreg_el1(cntkctl);
> +	sys_regs[PAR_EL1]		= read_sysreg(par_el1);
> +
> +	ctxt->hw_sp_el1			= read_sysreg(sp_el1);
>  	ctxt->gp_regs.elr_el1		= read_sysreg_el1(elr);
>  	ctxt->gp_regs.spsr[KVM_SPSR_EL1]= read_sysreg_el1(spsr);
>  }
> @@ -86,37 +91,41 @@ void __hyp_text __sysreg_save_guest_state(struct kvm_cpu_context *ctxt)
>  
>  static void __hyp_text __sysreg_restore_common_state(struct kvm_cpu_context *ctxt)
>  {
> -	write_sysreg(ctxt->sys_regs[ACTLR_EL1],	  actlr_el1);
> -	write_sysreg(ctxt->sys_regs[TPIDR_EL0],	  tpidr_el0);
> -	write_sysreg(ctxt->sys_regs[TPIDRRO_EL0], tpidrro_el0);
> -	write_sysreg(ctxt->sys_regs[TPIDR_EL1],	  tpidr_el1);
> -	write_sysreg(ctxt->sys_regs[MDSCR_EL1],	  mdscr_el1);
> +	u64 *sys_regs = kern_hyp_va(ctxt->hw_sys_regs);
> +
> +	write_sysreg(sys_regs[ACTLR_EL1],	  actlr_el1);
> +	write_sysreg(sys_regs[TPIDR_EL0],	  tpidr_el0);
> +	write_sysreg(sys_regs[TPIDRRO_EL0],	tpidrro_el0);
> +	write_sysreg(sys_regs[TPIDR_EL1],	  tpidr_el1);
> +	write_sysreg(sys_regs[MDSCR_EL1],	  mdscr_el1);
>  	write_sysreg(ctxt->gp_regs.regs.sp,	  sp_el0);
>  	write_sysreg_el2(ctxt->gp_regs.regs.pc,	  elr);
> -	write_sysreg_el2(ctxt->gp_regs.regs.pstate, spsr);
> +	write_sysreg_el2(ctxt->hw_pstate,	  spsr);
>  }
>  
>  static void __hyp_text __sysreg_restore_state(struct kvm_cpu_context *ctxt)
>  {
> -	write_sysreg(ctxt->sys_regs[MPIDR_EL1],		vmpidr_el2);
> -	write_sysreg(ctxt->sys_regs[CSSELR_EL1],	csselr_el1);
> -	write_sysreg_el1(ctxt->sys_regs[SCTLR_EL1],	sctlr);
> -	write_sysreg_el1(ctxt->sys_regs[CPACR_EL1],	cpacr);
> -	write_sysreg_el1(ctxt->sys_regs[TTBR0_EL1],	ttbr0);
> -	write_sysreg_el1(ctxt->sys_regs[TTBR1_EL1],	ttbr1);
> -	write_sysreg_el1(ctxt->sys_regs[TCR_EL1],	tcr);
> -	write_sysreg_el1(ctxt->sys_regs[ESR_EL1],	esr);
> -	write_sysreg_el1(ctxt->sys_regs[AFSR0_EL1],	afsr0);
> -	write_sysreg_el1(ctxt->sys_regs[AFSR1_EL1],	afsr1);
> -	write_sysreg_el1(ctxt->sys_regs[FAR_EL1],	far);
> -	write_sysreg_el1(ctxt->sys_regs[MAIR_EL1],	mair);
> -	write_sysreg_el1(ctxt->sys_regs[VBAR_EL1],	vbar);
> -	write_sysreg_el1(ctxt->sys_regs[CONTEXTIDR_EL1],contextidr);
> -	write_sysreg_el1(ctxt->sys_regs[AMAIR_EL1],	amair);
> -	write_sysreg_el1(ctxt->sys_regs[CNTKCTL_EL1], 	cntkctl);
> -	write_sysreg(ctxt->sys_regs[PAR_EL1],		par_el1);
> -
> -	write_sysreg(ctxt->gp_regs.sp_el1,		sp_el1);
> +	u64 *sys_regs = kern_hyp_va(ctxt->hw_sys_regs);
> +
> +	write_sysreg(sys_regs[MPIDR_EL1],	vmpidr_el2);
> +	write_sysreg(sys_regs[CSSELR_EL1],	csselr_el1);
> +	write_sysreg_el1(sys_regs[SCTLR_EL1],	sctlr);
> +	write_sysreg_el1(sys_regs[CPACR_EL1],	cpacr);
> +	write_sysreg_el1(sys_regs[TTBR0_EL1],	ttbr0);
> +	write_sysreg_el1(sys_regs[TTBR1_EL1],	ttbr1);
> +	write_sysreg_el1(sys_regs[TCR_EL1],	tcr);
> +	write_sysreg_el1(sys_regs[ESR_EL1],	esr);
> +	write_sysreg_el1(sys_regs[AFSR0_EL1],	afsr0);
> +	write_sysreg_el1(sys_regs[AFSR1_EL1],	afsr1);
> +	write_sysreg_el1(sys_regs[FAR_EL1],	far);
> +	write_sysreg_el1(sys_regs[MAIR_EL1],	mair);
> +	write_sysreg_el1(sys_regs[VBAR_EL1],	vbar);
> +	write_sysreg_el1(sys_regs[CONTEXTIDR_EL1], contextidr);
> +	write_sysreg_el1(sys_regs[AMAIR_EL1],	amair);
> +	write_sysreg_el1(sys_regs[CNTKCTL_EL1], cntkctl);
> +	write_sysreg(sys_regs[PAR_EL1],		par_el1);
> +
> +	write_sysreg(ctxt->hw_sp_el1,			sp_el1);
>  	write_sysreg_el1(ctxt->gp_regs.elr_el1,		elr);
>  	write_sysreg_el1(ctxt->gp_regs.spsr[KVM_SPSR_EL1],spsr);
>  }
> -- 
> 1.9.1
> 
> 

  reply	other threads:[~2017-02-22 11:12 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-09  6:23 [RFC 00/55] Nested Virtualization on KVM/ARM Jintack Lim
2017-01-09  6:23 ` [RFC 01/55] arm64: Add missing TCR hw defines Jintack Lim
2017-01-09  6:23 ` [RFC 02/55] KVM: arm64: Add nesting config option Jintack Lim
2017-01-09  6:23 ` [RFC 03/55] KVM: arm64: Add KVM nesting feature Jintack Lim
2017-01-09  6:24 ` [RFC 04/55] KVM: arm64: Allow userspace to set PSR_MODE_EL2x Jintack Lim
2017-01-09  6:24 ` [RFC 05/55] KVM: arm64: Add vcpu_mode_el2 primitive to support nesting Jintack Lim
2017-01-09  6:24 ` [RFC 06/55] KVM: arm64: Add EL2 execution context for nesting Jintack Lim
2017-02-22 11:10   ` Christoffer Dall
2017-06-26 14:33     ` Jintack Lim
2017-07-03  9:03       ` Christoffer Dall
2017-07-03  9:32         ` Marc Zyngier
2017-07-03  9:54           ` Christoffer Dall
2017-07-03 14:44             ` Jintack Lim
2017-07-03 15:30               ` Christoffer Dall
2017-01-09  6:24 ` [RFC 07/55] KVM: arm/arm64: Add virtual EL2 state emulation framework Jintack Lim
2017-02-22 11:12   ` Christoffer Dall [this message]
2017-06-01 20:05   ` Bandan Das
2017-06-02 11:51     ` Christoffer Dall
2017-06-02 17:36       ` Bandan Das
2017-06-02 19:06         ` Christoffer Dall
2017-06-02 19:25           ` Bandan Das
2017-01-09  6:24 ` [RFC 08/55] KVM: arm64: Set virtual EL2 context depending on the guest exception level Jintack Lim
2017-02-22 11:14   ` Christoffer Dall
2017-06-01 20:22   ` Bandan Das
2017-06-02  8:48     ` Marc Zyngier
2017-01-09  6:24 ` [RFC 09/55] KVM: arm64: Set shadow EL1 registers for virtual EL2 execution Jintack Lim
2017-02-22 11:19   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 10/55] KVM: arm64: Synchronize EL1 system registers on virtual EL2 entry and exit Jintack Lim
2017-06-06 20:16   ` Bandan Das
2017-06-07  4:26     ` Jintack Lim
2017-01-09  6:24 ` [RFC 11/55] KVM: arm64: Emulate taking an exception to the guest hypervisor Jintack Lim
2017-02-22 11:28   ` Christoffer Dall
2017-06-06 20:21   ` Bandan Das
2017-06-06 20:38     ` Jintack Lim
2017-06-06 22:07       ` Bandan Das
2017-06-06 23:16         ` Jintack Lim
2017-06-07 17:21           ` Bandan Das
2017-01-09  6:24 ` [RFC 12/55] KVM: arm64: Handle EL2 register access traps Jintack Lim
2017-02-22 11:30   ` Christoffer Dall
2017-02-22 11:31   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 13/55] KVM: arm64: Handle eret instruction traps Jintack Lim
2017-01-09  6:24 ` [RFC 14/55] KVM: arm64: Take account of system " Jintack Lim
2017-02-22 11:34   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 15/55] KVM: arm64: Trap EL1 VM register accesses in virtual EL2 Jintack Lim
2017-01-09  6:24 ` [RFC 16/55] KVM: arm64: Forward VM reg traps to the guest hypervisor Jintack Lim
2017-02-22 11:39   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 17/55] KVM: arm64: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 in virtual EL2 Jintack Lim
2017-02-22 11:40   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 18/55] KVM: arm64: Forward traps due to HCR_EL2.NV1 bit to the guest hypervisor Jintack Lim
2017-02-22 11:41   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 19/55] KVM: arm64: Trap CPACR_EL1 access in virtual EL2 Jintack Lim
2017-01-09  6:24 ` [RFC 20/55] KVM: arm64: Forward CPACR_EL1 traps to the guest hypervisor Jintack Lim
2017-01-09  6:24 ` [RFC 21/55] KVM: arm64: Forward HVC instruction " Jintack Lim
2017-02-22 11:47   ` Christoffer Dall
2017-06-26 15:21     ` Jintack Lim
2017-07-03  9:08       ` Christoffer Dall
2017-07-03  9:31         ` Andrew Jones
2017-07-03  9:51           ` Christoffer Dall
2017-07-03 12:03             ` Will Deacon
2017-07-03 12:35               ` Marc Zyngier
2017-07-03 13:29         ` Jintack Lim
2017-01-09  6:24 ` [RFC 22/55] KVM: arm64: Handle PSCI call from the guest Jintack Lim
2017-01-09  6:24 ` [RFC 23/55] KVM: arm64: Forward WFX to the guest hypervisor Jintack Lim
2017-01-09  6:24 ` [RFC 24/55] KVM: arm64: Forward FP exceptions " Jintack Lim
2017-01-09  6:24 ` [RFC 25/55] KVM: arm/arm64: Let vcpu thread modify its own active state Jintack Lim
2017-02-22 12:27   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 26/55] KVM: arm/arm64: Add VGIC data structures for the nesting Jintack Lim
2017-01-09  6:24 ` [RFC 27/55] KVM: arm/arm64: Emulate GICH interface on GICv2 Jintack Lim
2017-02-22 13:06   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 28/55] KVM: arm/arm64: Prepare vgic state for the nested VM Jintack Lim
2017-02-22 13:12   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 29/55] KVM: arm/arm64: Set up the prepared vgic state Jintack Lim
2017-01-09  6:24 ` [RFC 30/55] KVM: arm/arm64: Inject irqs to the guest hypervisor Jintack Lim
2017-02-22 13:16   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 31/55] KVM: arm/arm64: Inject maintenance interrupts " Jintack Lim
2017-02-22 13:19   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 32/55] KVM: arm/arm64: register GICH iodev for " Jintack Lim
2017-02-22 13:21   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 33/55] KVM: arm/arm64: Remove unused params in mmu functions Jintack Lim
2017-01-09  6:24 ` [RFC 34/55] KVM: arm/arm64: Abstract stage-2 MMU state into a separate structure Jintack Lim
2017-01-09  6:24 ` [RFC 35/55] KVM: arm/arm64: Support mmu for the virtual EL2 execution Jintack Lim
2017-02-22 13:38   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 36/55] KVM: arm64: Invalidate virtual EL2 TLB entries when needed Jintack Lim
2017-01-09  6:24 ` [RFC 37/55] KVM: arm64: Setup vttbr_el2 on each VM entry Jintack Lim
2017-01-09  6:24 ` [RFC 38/55] KVM: arm/arm64: Make mmu functions non-static Jintack Lim
2017-01-09  6:24 ` [RFC 39/55] KVM: arm/arm64: Add mmu context for the nesting Jintack Lim
2017-02-22 13:34   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 40/55] KVM: arm/arm64: Handle vttbr_el2 write operation from the guest hypervisor Jintack Lim
2017-02-22 17:59   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 41/55] KVM: arm/arm64: Unmap/flush shadow stage 2 page tables Jintack Lim
2017-02-22 18:09   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 42/55] KVM: arm64: Implement nested Stage-2 page table walk logic Jintack Lim
2017-01-09  6:24 ` [RFC 43/55] KVM: arm/arm64: Handle shadow stage 2 page faults Jintack Lim
2017-01-09  6:24 ` [RFC 44/55] KVM: arm/arm64: Move kvm_is_write_fault to header file Jintack Lim
2017-01-09  6:24 ` [RFC 45/55] KVM: arm64: KVM: Inject stage-2 page faults Jintack Lim
2017-01-09  6:24 ` [RFC 46/55] KVM: arm64: Add more info to the S2 translation result Jintack Lim
2017-01-09  6:24 ` [RFC 47/55] KVM: arm/arm64: Forward the guest hypervisor's stage 2 permission faults Jintack Lim
2017-02-22 18:15   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 48/55] KVM: arm64: Emulate TLBI instruction Jintack Lim
2017-01-09  6:24 ` [RFC 49/55] KVM: arm64: Fixes to toggle_cache for nesting Jintack Lim
2017-01-09  6:24 ` [RFC 50/55] KVM: arm/arm64: Abstract kvm_phys_addr_ioremap() function Jintack Lim
2017-01-09  6:24 ` [RFC 51/55] KVM: arm64: Expose physical address of vcpu interface Jintack Lim
2017-01-09  6:24 ` [RFC 52/55] KVM: arm/arm64: Create a vcpu mapping for the nested VM Jintack Lim
2017-01-09  6:24 ` [RFC 53/55] KVM: arm64: Reflect shadow VMPIDR_EL2 value to MPIDR_EL1 Jintack Lim
2017-01-09  6:24 ` [RFC 54/55] KVM: arm/arm64: Adjust virtual offset considering nesting Jintack Lim
2017-02-22 19:28   ` Christoffer Dall
2017-01-09  6:24 ` [RFC 55/55] KVM: arm64: Enable nested virtualization Jintack Lim
2017-01-09 15:05 ` [RFC 00/55] Nested Virtualization on KVM/ARM David Hildenbrand
2017-01-10 16:18   ` Jintack Lim
2017-02-22 18:23 ` Christoffer Dall
2017-02-24 10:28   ` Jintack Lim

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