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KVM: arm64: Unify identifiers used to distinguish host and hypervisor

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The 'pkvm_component_id' enum type provides constants to refer to the
host and the hypervisor, yet this information is duplicated by the
'pkvm_hyp_id' constant.

Remove the definition of 'pkvm_hyp_id' and move the 'pkvm_component_id'
type definition to 'mem_protect.h' so that it can be used outside of
the memory protection code, for example when initialising the owner for
hypervisor-owned pages.

Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221110190259.26861-6-will@kernel.org
This commit is contained in:
Will Deacon
2022-11-10 19:02:38 +00:00
committed by Marc Zyngier
parent 0d16d12eb2
commit 33bc332d40
3 changed files with 6 additions and 10 deletions
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6
arch/arm64/kvm/hyp/include/nvhe/mem_protect.h
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@@ -51,7 +51,11 @@ struct host_kvm {
};
extern struct host_kvm host_kvm;
extern const u8 pkvm_hyp_id;
/* This corresponds to page-table locking order */
enum pkvm_component_id {
PKVM_ID_HOST,
PKVM_ID_HYP,
};
int __pkvm_prot_finalize(void);
int __pkvm_host_share_hyp(u64 pfn);