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ANDROID: KVM: arm64: Move loaded host fp state to pkvm

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The state will be augmented in future patches and accessed in
more than one location. It makes it easier to reason about the
code.

No functional change intended.

Signed-off-by: Fuad Tabba <tabba@google.com>

Bug: 267291591
Change-Id: If3a3a9266c201f63c126860b61da9698be9b9faa
This commit is contained in:
Fuad Tabba
2023-02-13 09:24:09 +00:00
committed by Lee Jones
parent dfd5d02bca
commit bfdd094329
3 changed files with 10 additions and 8 deletions
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2
arch/arm64/kvm/hyp/include/nvhe/pkvm.h
View File

@@ -82,6 +82,8 @@ struct pkvm_hyp_vm {
struct pkvm_hyp_vcpu *vcpus[];
};
DECLARE_PER_CPU(struct user_fpsimd_state, loaded_host_fpsimd_state);
static inline struct pkvm_hyp_vm *
pkvm_hyp_vcpu_to_hyp_vm(struct pkvm_hyp_vcpu *hyp_vcpu)
{

8
arch/arm64/kvm/hyp/nvhe/hyp-main.c
View File

@@ -30,14 +30,6 @@
#include "../../sys_regs.h"
/*
* Host FPSIMD state. Written to when the guest accesses its own FPSIMD state,
* and read when the guest state is live and we need to switch back to the host.
*
* Only valid when (fp_state == FP_STATE_GUEST_OWNED) in the hyp vCPU structure.
*/
static DEFINE_PER_CPU(struct user_fpsimd_state, loaded_host_fpsimd_state);
DEFINE_PER_CPU(struct kvm_nvhe_init_params, kvm_init_params);
void __kvm_hyp_host_forward_smc(struct kvm_cpu_context *host_ctxt);

8
arch/arm64/kvm/hyp/nvhe/pkvm.c
View File

@@ -31,6 +31,14 @@ unsigned int kvm_arm_vmid_bits;
*/
static DEFINE_PER_CPU(struct pkvm_hyp_vcpu *, loaded_hyp_vcpu);
/*
* Host FPSIMD state. Written to when the guest accesses its own FPSIMD state,
* and read when the guest state is live and we need to switch back to the host.
*
* Only valid when (fp_state == FP_STATE_GUEST_OWNED) in the hyp vCPU structure.
*/
DEFINE_PER_CPU(struct user_fpsimd_state, loaded_host_fpsimd_state);
/*
* Set trap register values based on features in ID_AA64PFR0.
*/