From: Quentin Perret <qperret@google.com>
To: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
ardb@kernel.org, qwandor@google.com, tabba@google.com,
dbrazdil@google.com, kernel-team@android.com, qperret@google.com
Subject: [PATCH v4 14/21] KVM: arm64: Expose pkvm_hyp_id
Date: Mon, 9 Aug 2021 16:24:41 +0100 [thread overview]
Message-ID: <20210809152448.1810400-15-qperret@google.com> (raw)
In-Reply-To: <20210809152448.1810400-1-qperret@google.com>
Allow references to the hypervisor's owner id from outside
mem_protect.c.
Signed-off-by: Quentin Perret <qperret@google.com>
---
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 2 ++
arch/arm64/kvm/hyp/nvhe/mem_protect.c | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
index 0849ee8fa260..23316a021880 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
@@ -46,6 +46,8 @@ struct host_kvm {
};
extern struct host_kvm host_kvm;
+extern const u8 pkvm_hyp_id;
+
int __pkvm_prot_finalize(void);
int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end);
diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
index f95a5a4aa09c..ee255171945c 100644
--- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c
+++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c
@@ -31,7 +31,7 @@ static struct hyp_pool host_s2_pool;
u64 id_aa64mmfr0_el1_sys_val;
u64 id_aa64mmfr1_el1_sys_val;
-static const u8 pkvm_hyp_id = 1;
+const u8 pkvm_hyp_id = 1;
static void *host_s2_zalloc_pages_exact(size_t size)
{
--
2.32.0.605.g8dce9f2422-goog
next prev parent reply other threads:[~2021-08-09 15:26 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-09 15:24 [PATCH v4 00/21] Track shared pages at EL2 in protected mode Quentin Perret
2021-08-09 15:24 ` [PATCH v4 01/21] KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at EL2 Quentin Perret
2021-08-09 15:24 ` [PATCH v4 02/21] KVM: arm64: Introduce hyp_assert_lock_held() Quentin Perret
2021-08-09 15:24 ` [PATCH v4 03/21] KVM: arm64: Provide the host_stage2_try() helper macro Quentin Perret
2021-08-09 15:24 ` [PATCH v4 04/21] KVM: arm64: Introduce helper to retrieve a PTE and its level Quentin Perret
2021-08-17 13:53 ` Andrew Walbran
2021-08-09 15:24 ` [PATCH v4 05/21] KVM: arm64: Expose page-table helpers Quentin Perret
2021-08-10 4:56 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 06/21] KVM: arm64: Optimize host memory aborts Quentin Perret
2021-08-09 15:24 ` [PATCH v4 07/21] KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED Quentin Perret
2021-08-09 15:24 ` [PATCH v4 08/21] KVM: arm64: Don't overwrite software bits with owner id Quentin Perret
2021-08-09 15:24 ` [PATCH v4 09/21] KVM: arm64: Tolerate re-creating hyp mappings to set software bits Quentin Perret
2021-08-09 15:24 ` [PATCH v4 10/21] KVM: arm64: Enable forcing page-level stage-2 mappings Quentin Perret
2021-08-10 4:33 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 11/21] KVM: arm64: Allow populating software bits Quentin Perret
2021-08-10 4:56 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 12/21] KVM: arm64: Add helpers to tag shared pages in SW bits Quentin Perret
2021-08-09 15:24 ` [PATCH v4 13/21] KVM: arm64: Expose host stage-2 manipulation helpers Quentin Perret
2021-08-10 4:36 ` Fuad Tabba
2021-08-09 15:24 ` Quentin Perret [this message]
2021-08-10 4:57 ` [PATCH v4 14/21] KVM: arm64: Expose pkvm_hyp_id Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 15/21] KVM: arm64: Introduce addr_is_memory() Quentin Perret
2021-08-10 4:37 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 16/21] KVM: arm64: Enable retrieving protections attributes of PTEs Quentin Perret
2021-08-10 4:38 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 17/21] KVM: arm64: Mark host bss and rodata section as shared Quentin Perret
2021-08-10 4:40 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 18/21] KVM: arm64: Remove __pkvm_mark_hyp Quentin Perret
2021-08-10 4:55 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 19/21] KVM: arm64: Refactor protected nVHE stage-1 locking Quentin Perret
2021-08-10 4:41 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 20/21] KVM: arm64: Restrict EL2 stage-1 changes in protected mode Quentin Perret
2021-08-10 4:43 ` Fuad Tabba
2021-08-09 15:24 ` [PATCH v4 21/21] KVM: arm64: Make __pkvm_create_mappings static Quentin Perret
2021-08-10 4:55 ` Fuad Tabba
2021-08-11 11:25 ` [PATCH v4 00/21] Track shared pages at EL2 in protected mode Marc Zyngier
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