Thread (36 messages) 36 messages, 4 authors, 2021-08-17

Re: [PATCH v4 14/21] KVM: arm64: Expose pkvm_hyp_id

From: Fuad Tabba <hidden>
Date: 2021-08-10 04:57:55
Also in: kvmarm, lkml

Hi Quentin,

On Mon, Aug 9, 2021 at 5:25 PM Quentin Perret [off-list ref] wrote:
Allow references to the hypervisor's owner id from outside
mem_protect.c.

Signed-off-by: Quentin Perret <redacted>
---
Reviewed-by: Fuad Tabba <redacted>

Thanks,
/fuad
quoted hunk ↗ jump to hunk
 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
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