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RISC-V: KVM: Add kvm_vcpu_config

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Add a placeholder for all registers such as henvcfg, hstateen etc
which have 'static' configurations depending on extensions supported by
the guest. The values are derived once and are then subsequently written
to the corresponding CSRs while switching to the vcpu.

Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Mayuresh Chitale
2023-09-13 22:09:01 +05:30
committed by Anup Patel
parent 00c6f39c82
commit fe0bab701e
2 changed files with 21 additions and 13 deletions
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7
arch/riscv/include/asm/kvm_host.h
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@@ -164,6 +164,10 @@ struct kvm_vcpu_csr {
unsigned long scounteren;
};
struct kvm_vcpu_config {
u64 henvcfg;
};
struct kvm_vcpu_arch {
/* VCPU ran at least once */
bool ran_atleast_once;
@@ -244,6 +248,9 @@ struct kvm_vcpu_arch {
/* Performance monitoring context */
struct kvm_pmu pmu_context;
/* 'static' configurations which are set only once */
struct kvm_vcpu_config cfg;
};
static inline void kvm_arch_sync_events(struct kvm *kvm) {}