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From: Andrew Scull <ascull@google.com>
To: kvmarm@lists.cs.columbia.edu
Cc: linux-arm-kernel@lists.infradead.org, kernel-team@android.com,
	suzuki.poulose@arm.com, maz@kernel.org,
	Sudeep Holla <sudeep.holla@arm.com>,
	james.morse@arm.com, Andrew Scull <ascull@google.com>,
	catalin.marinas@arm.com, David Brazdil <dbrazdil@google.com>,
	will@kernel.org, julien.thierry.kdev@gmail.com
Subject: [PATCH v3 04/18] KVM: arm64: Restrict symbol aliasing to outside nVHE
Date: Thu,  3 Sep 2020 14:52:53 +0100	[thread overview]
Message-ID: <20200903135307.251331-5-ascull@google.com> (raw)
In-Reply-To: <20200903135307.251331-1-ascull@google.com>

nVHE symbols are prefixed but this is sometimes hidden from the host by
aliasing the non-prefixed symbol to the prefixed version with a macro.
This runs into problems if nVHE tries to use the symbol as it becomes
doubly prefixed. Avoid this by omitting the aliasing macro for nVHE.

Cc: David Brazdil <dbrazdil@google.com>
Signed-off-by: Andrew Scull <ascull@google.com>
---
 arch/arm64/include/asm/kvm_asm.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index 6f98fbd0ac81..6f9c4162a764 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -99,8 +99,11 @@ struct kvm_s2_mmu;
 
 DECLARE_KVM_NVHE_SYM(__kvm_hyp_init);
 DECLARE_KVM_HYP_SYM(__kvm_hyp_vector);
+
+#ifndef __KVM_NVHE_HYPERVISOR__
 #define __kvm_hyp_init		CHOOSE_NVHE_SYM(__kvm_hyp_init)
 #define __kvm_hyp_vector	CHOOSE_HYP_SYM(__kvm_hyp_vector)
+#endif
 
 #ifdef CONFIG_KVM_INDIRECT_VECTORS
 extern atomic_t arm64_el2_vector_last_slot;
-- 
2.28.0.402.g5ffc5be6b7-goog


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  parent reply	other threads:[~2020-09-03 13:54 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-03 13:52 [PATCH v3 00/18] Introduce separate nVHE hyp context Andrew Scull
2020-09-03 13:52 ` [PATCH v3 01/18] KVM: arm64: Remove __activate_vm wrapper Andrew Scull
2020-09-03 13:52 ` [PATCH v3 02/18] KVM: arm64: Remove hyp_panic arguments Andrew Scull
2020-09-07 10:21   ` Marc Zyngier
2020-09-03 13:52 ` [PATCH v3 03/18] KVM: arm64: Remove kvm_host_data_t typedef Andrew Scull
2020-09-03 13:52 ` Andrew Scull [this message]
2020-09-07 10:38   ` [PATCH v3 04/18] KVM: arm64: Restrict symbol aliasing to outside nVHE Marc Zyngier
2020-09-08 10:13     ` Andrew Scull
2020-09-03 13:52 ` [PATCH v3 05/18] KVM: arm64: Save chosen hyp vector to a percpu variable Andrew Scull
2020-09-03 13:52 ` [PATCH v3 06/18] KVM: arm64: nVHE: Use separate vector for the host Andrew Scull
2020-09-07 11:38   ` Marc Zyngier
2020-09-08 10:29     ` Andrew Scull
2020-09-03 13:52 ` [PATCH v3 07/18] KVM: arm64: nVHE: Don't consume host SErrors with ESB Andrew Scull
2020-09-07 11:46   ` Marc Zyngier
2020-09-03 13:52 ` [PATCH v3 08/18] KVM: arm64: Introduce hyp context Andrew Scull
2020-09-07 13:29   ` Marc Zyngier
2020-09-08 10:52     ` Andrew Scull
2020-09-03 13:52 ` [PATCH v3 09/18] KVM: arm64: Update context references from host to hyp Andrew Scull
2020-09-03 13:52 ` [PATCH v3 10/18] KVM: arm64: Restore hyp when panicking in guest context Andrew Scull
2020-09-03 13:53 ` [PATCH v3 11/18] KVM: arm64: Share context save and restore macros Andrew Scull
2020-09-03 13:53 ` [PATCH v3 12/18] KVM: arm64: nVHE: Switch to hyp context for EL2 Andrew Scull
2020-09-07 13:02   ` Marc Zyngier
2020-09-08 10:42     ` Andrew Scull
2020-09-03 13:53 ` [PATCH v3 13/18] KVM: arm64: nVHE: Handle hyp panics Andrew Scull
2020-09-07 13:24   ` Marc Zyngier
2020-09-03 13:53 ` [PATCH v3 14/18] smccc: Cast arguments to unsigned long Andrew Scull
2020-09-07 13:33   ` Marc Zyngier
2020-09-08 10:58     ` Andrew Scull
2020-09-03 13:53 ` [PATCH v3 15/18] KVM: arm64: nVHE: Pass pointers consistently to hyp-init Andrew Scull
2020-09-03 13:53 ` [PATCH v3 16/18] KVM: arm64: nVHE: Migrate hyp interface to SMCCC Andrew Scull
2020-09-07 13:47   ` Marc Zyngier
2020-09-07 14:20   ` Marc Zyngier
2020-09-08 11:02     ` Andrew Scull
2020-09-09  8:30       ` Andrew Scull
2020-09-03 13:53 ` [PATCH v3 17/18] KVM: arm64: nVHE: Migrate hyp-init " Andrew Scull
2020-09-03 13:53 ` [PATCH v3 18/18] KVM: arm64: nVHE: Fix pointers during SMCCC convertion Andrew Scull

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