From: Dave Martin <Dave.Martin@arm.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Okamoto Takayuki <tokamoto@jp.fujitsu.com>,
Christoffer Dall <cdall@kernel.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Zhang Lei <zhang.lei@jp.fujitsu.com>,
Julien Grall <julien.grall@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 21/27] KVM: arm/arm64: Add hook for arch-specific KVM initialisation
Date: Fri, 29 Mar 2019 13:00:46 +0000 [thread overview]
Message-ID: <1553864452-15080-22-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1553864452-15080-1-git-send-email-Dave.Martin@arm.com>
This patch adds a kvm_arm_init_arch_resources() hook to perform
subarch-specific initialisation when starting up KVM.
This will be used in a subsequent patch for global SVE-related
setup on arm64.
No functional change.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Tested-by: zhang.lei <zhang.lei@jp.fujitsu.com>
---
arch/arm/include/asm/kvm_host.h | 2 ++
arch/arm64/include/asm/kvm_host.h | 2 ++
virt/kvm/arm/arm.c | 4 ++++
3 files changed, 8 insertions(+)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 770d732..a49ee01 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -53,6 +53,8 @@
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
+static inline int kvm_arm_init_arch_resources(void) { return 0; }
+
u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 205438a..3e89509 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -58,6 +58,8 @@
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
+static inline int kvm_arm_init_arch_resources(void) { return 0; }
+
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext);
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 99c3738..c69e137 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1664,6 +1664,10 @@ int kvm_arch_init(void *opaque)
if (err)
return err;
+ err = kvm_arm_init_arch_resources();
+ if (err)
+ return err;
+
if (!in_hyp_mode) {
err = init_hyp_mode();
if (err)
--
2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: Dave Martin <Dave.Martin@arm.com>
To: kvmarm@lists.cs.columbia.edu
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Okamoto Takayuki" <tokamoto@jp.fujitsu.com>,
"Christoffer Dall" <cdall@kernel.org>,
"Ard Biesheuvel" <ard.biesheuvel@linaro.org>,
"Marc Zyngier" <marc.zyngier@arm.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Zhang Lei" <zhang.lei@jp.fujitsu.com>,
"Julien Grall" <julien.grall@arm.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 21/27] KVM: arm/arm64: Add hook for arch-specific KVM initialisation
Date: Fri, 29 Mar 2019 13:00:46 +0000 [thread overview]
Message-ID: <1553864452-15080-22-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1553864452-15080-1-git-send-email-Dave.Martin@arm.com>
This patch adds a kvm_arm_init_arch_resources() hook to perform
subarch-specific initialisation when starting up KVM.
This will be used in a subsequent patch for global SVE-related
setup on arm64.
No functional change.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Tested-by: zhang.lei <zhang.lei@jp.fujitsu.com>
---
arch/arm/include/asm/kvm_host.h | 2 ++
arch/arm64/include/asm/kvm_host.h | 2 ++
virt/kvm/arm/arm.c | 4 ++++
3 files changed, 8 insertions(+)
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 770d732..a49ee01 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -53,6 +53,8 @@
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
+static inline int kvm_arm_init_arch_resources(void) { return 0; }
+
u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 205438a..3e89509 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -58,6 +58,8 @@
DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use);
+static inline int kvm_arm_init_arch_resources(void) { return 0; }
+
int __attribute_const__ kvm_target_cpu(void);
int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
int kvm_arch_vm_ioctl_check_extension(struct kvm *kvm, long ext);
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 99c3738..c69e137 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1664,6 +1664,10 @@ int kvm_arch_init(void *opaque)
if (err)
return err;
+ err = kvm_arm_init_arch_resources();
+ if (err)
+ return err;
+
if (!in_hyp_mode) {
err = init_hyp_mode();
if (err)
--
2.1.4
_______________________________________________
linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-03-29 13:02 UTC|newest]
Thread overview: 224+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 13:00 [PATCH v7 00/27] KVM: arm64: SVE guest support Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 01/27] KVM: Documentation: Document arm64 core registers in detail Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-24 9:25 ` Alex Bennée
2019-04-24 9:25 ` Alex Bennée
2019-03-29 13:00 ` [PATCH v7 02/27] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 03/27] KVM: arm64: Delete orphaned declaration for __fpsimd_enabled() Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 04/27] KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 05/27] KVM: arm64: Add missing #includes to kvm_host.h Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 06/27] arm64/sve: Clarify role of the VQ map maintenance functions Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 21:21 ` Andrew Jones
2019-04-04 21:21 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 07/27] arm64/sve: Check SVE virtualisability Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 21:21 ` Andrew Jones
2019-04-04 21:21 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 08/27] arm64/sve: Enable SVE state tracking for non-task contexts Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 09/27] KVM: arm64: Add a vcpu flag to control SVE visibility for the guest Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 19:14 ` Andrew Jones
2019-04-03 19:14 ` Andrew Jones
2019-04-04 3:17 ` Marc Zyngier
2019-04-04 3:17 ` Marc Zyngier
2019-04-04 7:53 ` Dave Martin
2019-04-04 7:53 ` Dave Martin
2019-04-04 21:15 ` Andrew Jones
2019-04-04 21:15 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 10/27] KVM: arm64: Propagate vcpu into read_id_reg() Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 21:15 ` Andrew Jones
2019-04-04 21:15 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 11/27] KVM: arm64: Support runtime sysreg visibility filtering Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 19:17 ` Andrew Jones
2019-04-03 19:17 ` Andrew Jones
2019-04-24 9:39 ` Alex Bennée
2019-04-24 9:39 ` Alex Bennée
2019-04-24 13:47 ` Dave Martin
2019-04-24 13:47 ` Dave Martin
2019-04-24 13:47 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 12/27] KVM: arm64/sve: System register context switch and access support Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 19:39 ` Andrew Jones
2019-04-03 19:39 ` Andrew Jones
2019-04-04 8:06 ` Dave Martin
2019-04-04 8:06 ` Dave Martin
2019-04-04 8:32 ` Andrew Jones
2019-04-04 8:32 ` Andrew Jones
2019-04-04 8:47 ` Dave Martin
2019-04-04 8:47 ` Dave Martin
2019-04-04 8:59 ` Andrew Jones
2019-04-04 8:59 ` Andrew Jones
2019-04-24 15:21 ` Alex Bennée
2019-04-24 15:21 ` Alex Bennée
2019-04-25 13:28 ` Dave Martin
2019-04-25 13:28 ` Dave Martin
2019-04-25 13:28 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 13/27] KVM: arm64/sve: Context switch the SVE registers Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 20:01 ` Andrew Jones
2019-04-03 20:01 ` Andrew Jones
2019-04-04 8:10 ` Dave Martin
2019-04-04 8:10 ` Dave Martin
2019-04-04 8:35 ` Andrew Jones
2019-04-04 8:35 ` Andrew Jones
2019-04-04 8:36 ` Dave Martin
2019-04-04 8:36 ` Dave Martin
2019-04-24 14:51 ` Alex Bennée
2019-04-24 14:51 ` Alex Bennée
2019-04-25 13:35 ` Dave Martin
2019-04-25 13:35 ` Dave Martin
2019-04-25 13:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 14/27] KVM: Allow 2048-bit register access via ioctl interface Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 21:11 ` Andrew Jones
2019-04-04 21:11 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 15/27] KVM: arm64: Add missing #include of <linux/string.h> in guest.c Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 16/27] KVM: arm64: Factor out core register ID enumeration Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-02 2:41 ` Marc Zyngier
2019-04-02 2:41 ` Marc Zyngier
2019-04-02 8:59 ` Dave Martin
2019-04-02 8:59 ` Dave Martin
2019-04-02 9:32 ` Marc Zyngier
2019-04-02 9:32 ` Marc Zyngier
2019-04-02 9:54 ` Dave P Martin
2019-04-02 9:54 ` Dave P Martin
2019-03-29 13:00 ` [PATCH v7 17/27] KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 20:15 ` Andrew Jones
2019-04-03 20:15 ` Andrew Jones
2019-04-24 13:45 ` Alex Bennée
2019-04-24 13:45 ` Alex Bennée
2019-03-29 13:00 ` [PATCH v7 18/27] KVM: arm64/sve: Add SVE support to register access ioctl interface Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 13:57 ` Andrew Jones
2019-04-04 13:57 ` Andrew Jones
2019-04-04 14:50 ` Dave Martin
2019-04-04 14:50 ` Dave Martin
2019-04-04 16:25 ` Andrew Jones
2019-04-04 16:25 ` Andrew Jones
2019-04-04 16:56 ` Dave Martin
2019-04-04 16:56 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 19/27] KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 14:08 ` Andrew Jones
2019-04-04 14:08 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:45 ` Andrew Jones
2019-04-05 9:45 ` Andrew Jones
2019-04-05 11:11 ` Dave Martin
2019-04-05 11:11 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 20/27] arm64/sve: In-kernel vector length availability query interface Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 14:20 ` Andrew Jones
2019-04-04 14:20 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:54 ` Andrew Jones
2019-04-05 9:54 ` Andrew Jones
2019-04-05 11:13 ` Dave Martin
2019-04-05 11:13 ` Dave Martin
2019-03-29 13:00 ` Dave Martin [this message]
2019-03-29 13:00 ` [PATCH v7 21/27] KVM: arm/arm64: Add hook for arch-specific KVM initialisation Dave Martin
2019-04-04 14:25 ` Andrew Jones
2019-04-04 14:25 ` Andrew Jones
2019-04-04 14:53 ` Dave Martin
2019-04-04 14:53 ` Dave Martin
2019-04-04 16:33 ` Andrew Jones
2019-04-04 16:33 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:40 ` Andrew Jones
2019-04-05 10:40 ` Andrew Jones
2019-04-05 11:14 ` Dave Martin
2019-04-05 11:14 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 22/27] KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 15:07 ` Andrew Jones
2019-04-04 15:07 ` Andrew Jones
2019-04-04 16:47 ` Dave Martin
2019-04-04 16:47 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 23/27] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 20:18 ` Andrew Jones
2019-04-04 20:18 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:14 ` Andrew Jones
2019-04-05 10:14 ` Andrew Jones
2019-04-05 12:54 ` Dave Martin
2019-04-05 12:54 ` Dave Martin
2019-04-05 15:33 ` Andrew Jones
2019-04-05 15:33 ` Andrew Jones
2019-04-10 12:42 ` Dave Martin
2019-04-10 12:42 ` Dave Martin
2019-04-10 12:42 ` Dave Martin
2019-04-04 20:31 ` Andrew Jones
2019-04-04 20:31 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:22 ` Andrew Jones
2019-04-05 10:22 ` Andrew Jones
2019-04-05 14:06 ` Dave Martin
2019-04-05 14:06 ` Dave Martin
2019-04-05 15:41 ` Andrew Jones
2019-04-05 15:41 ` Andrew Jones
2019-04-10 12:35 ` Dave Martin
2019-04-10 12:35 ` Dave Martin
2019-04-10 12:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 24/27] KVM: arm64/sve: Allow userspace to enable SVE for vcpus Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 20:36 ` Andrew Jones
2019-04-04 20:36 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 25/27] KVM: arm64: Add a capability to advertise SVE support Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 20:39 ` Andrew Jones
2019-04-04 20:39 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 26/27] KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-03 20:27 ` Andrew Jones
2019-04-03 20:27 ` Andrew Jones
2019-04-04 8:35 ` Dave Martin
2019-04-04 8:35 ` Dave Martin
2019-04-04 9:34 ` Andrew Jones
2019-04-04 9:34 ` Andrew Jones
2019-04-04 9:38 ` Dave P Martin
2019-04-04 9:38 ` Dave P Martin
2019-04-04 9:45 ` Andrew Jones
2019-04-04 9:45 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 27/27] KVM: arm64/sve: Document KVM API extensions for SVE Dave Martin
2019-03-29 13:00 ` Dave Martin
2019-04-04 21:09 ` Andrew Jones
2019-04-04 21:09 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:39 ` Andrew Jones
2019-04-05 10:39 ` Andrew Jones
2019-04-05 13:00 ` Dave Martin
2019-04-05 13:00 ` Dave Martin
2019-04-05 15:38 ` Andrew Jones
2019-04-05 15:38 ` Andrew Jones
2019-04-10 12:34 ` Dave Martin
2019-04-10 12:34 ` Dave Martin
2019-04-10 12:34 ` Dave Martin
2019-03-29 14:56 ` [PATCH v7 00/27] KVM: arm64: SVE guest support Marc Zyngier
2019-03-29 14:56 ` Marc Zyngier
2019-03-29 15:06 ` Dave Martin
2019-03-29 15:06 ` Dave Martin
2019-04-05 16:41 ` Dave Martin
2019-04-05 16:41 ` Dave Martin
2019-04-25 10:33 ` Alex Bennée
2019-04-25 10:33 ` Alex Bennée
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