[PATCH v2 15/22] ARM: KVM: Implement HVC_GET_VECTORS in the init code

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From: Marc Zyngier <marc.zyngier@arm.com>
To: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu
Cc: Russell King <linux@arm.linux.org.uk>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Catalin Marinas <catalin.marinas@arm.com>
Subject: [PATCH v2 15/22] ARM: KVM: Implement HVC_GET_VECTORS in the init code
Date: Thu, 23 Feb 2017 10:26:50 +0000	[thread overview]
Message-ID: <20170223102657.23100-16-marc.zyngier@arm.com> (raw)
In-Reply-To: <20170223102657.23100-1-marc.zyngier@arm.com>

Now that we have an infrastructure to handle hypercalls in the KVM
init code, let's implement HVC_GET_VECTORS there.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 arch/arm/kvm/init.S | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index 9b0c735a68f7..0da120b71c2e 100644
--- a/arch/arm/kvm/init.S
+++ b/arch/arm/kvm/init.S
@@ -122,7 +122,12 @@ __do_hyp_init:
 	eret
 
 ENTRY(__kvm_handle_stub_hvc)
-	cmp	r0, #HVC_RESET_VECTORS
+	cmp	r0, #HVC_GET_VECTORS
+	bne	1f
+	mrc	p15, 4, r0, c12, c0, 0	@ get HVBAR
+	b	exit
+
+1:	cmp	r0, #HVC_RESET_VECTORS
 	bne	1f
 ENTRY(__kvm_hyp_reset)
 	/* We're now in idmap, disable MMU */
-- 
2.11.0

WARNING: multiple messages have this Message-ID (diff)

From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 15/22] ARM: KVM: Implement HVC_GET_VECTORS in the init code
Date: Thu, 23 Feb 2017 10:26:50 +0000	[thread overview]
Message-ID: <20170223102657.23100-16-marc.zyngier@arm.com> (raw)
In-Reply-To: <20170223102657.23100-1-marc.zyngier@arm.com>

Now that we have an infrastructure to handle hypercalls in the KVM
init code, let's implement HVC_GET_VECTORS there.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 arch/arm/kvm/init.S | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S
index 9b0c735a68f7..0da120b71c2e 100644
--- a/arch/arm/kvm/init.S
+++ b/arch/arm/kvm/init.S
@@ -122,7 +122,12 @@ __do_hyp_init:
 	eret
 
 ENTRY(__kvm_handle_stub_hvc)
-	cmp	r0, #HVC_RESET_VECTORS
+	cmp	r0, #HVC_GET_VECTORS
+	bne	1f
+	mrc	p15, 4, r0, c12, c0, 0	@ get HVBAR
+	b	exit
+
+1:	cmp	r0, #HVC_RESET_VECTORS
 	bne	1f
 ENTRY(__kvm_hyp_reset)
 	/* We're now in idmap, disable MMU */
-- 
2.11.0

next prev parent reply	other threads:[~2017-02-23 10:26 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-23 10:26 [PATCH v2 00/22] arm/arm64: KVM: Rework the hyp-stub API Marc Zyngier
2017-02-23 10:26 ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 01/22] arm64: hyp-stub: Implement HVC_RESET_VECTORS stub hypercall Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 02/22] arm64: KVM: " Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 03/22] arm64: KVM: Implement HVC_GET_VECTORS in the init code Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 04/22] arm64: KVM: Allow the main HYP code to use the init hyp stub implementation Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 05/22] arm64: KVM: Convert __cpu_reset_hyp_mode to using __hyp_reset_vectors Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 06/22] arm64: KVM: Implement HVC_SOFT_RESTART in the init code Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 07/22] ARM: hyp-stub: improve ABI Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 08/22] ARM: soft-reboot into same mode that we entered the kernel Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 09/22] ARM: KVM: Convert KVM to use HVC_GET_VECTORS Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 10/22] ARM: Update cpu_v7_reset documentation Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 11/22] ARM: hyp-stub: Use r1 for the soft-restart address Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 12/22] ARM: Expose the VA/IDMAP offset Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 13/22] ARM: hyp-stub: Implement HVC_RESET_VECTORS stub hypercall Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 14/22] ARM: KVM: " Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` Marc Zyngier [this message]
2017-02-23 10:26   ` [PATCH v2 15/22] ARM: KVM: Implement HVC_GET_VECTORS in the init code Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 16/22] ARM: KVM: Allow the main HYP code to use the init hyp stub implementation Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 17/22] ARM: KVM: Convert __cpu_reset_hyp_mode to using __hyp_reset_vectors Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 18/22] ARM: KVM: Implement HVC_SOFT_RESTART in the init code Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 19/22] arm/arm64: KVM: Use __hyp_reset_vectors() directly Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 20/22] arm/arm64: KVM: Remove kvm_get_idmap_start Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 21/22] arm/arm64: KVM: Use HVC_RESET_VECTORS to reinit HYP mode Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier
2017-02-23 10:26 ` [PATCH v2 22/22] arm/arm64: Add hyp-stub API documentation Marc Zyngier
2017-02-23 10:26   ` Marc Zyngier

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:9b0c735a68f dfblob:9b0c735a68f dfblob:0da120b71c2
dfblob:0da120b71c2
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