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target/riscv/kvm.c: add kvmconfig_get_cfg_addr() helper

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There are 2 places in which we need to get a pointer to a certain
property of the cpu->cfg struct based on property offset. Next patch
will add a couple more.

Create a helper to avoid repeating this code over and over.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230706101738.460804-20-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Daniel Henrique Barboza 2023-07-06 07:17:37 -03:00 • committed by Alistair Francis
parent df817297d7
commit a1be1d9a77
1 changed files with 7 additions and 4 deletions
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11
target/riscv/kvm.c
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@ -215,11 +215,15 @@ static KVMCPUConfig kvm_multi_ext_cfgs[] = {
KVM_EXT_CFG("svpbmt", ext_svpbmt, KVM_RISCV_ISA_EXT_SVPBMT), KVM_EXT_CFG("svpbmt", ext_svpbmt, KVM_RISCV_ISA_EXT_SVPBMT),
}; };
static void *kvmconfig_get_cfg_addr(RISCVCPU *cpu, KVMCPUConfig *kvmcfg)
{
return (void *)&cpu->cfg + kvmcfg->offset;
}
static void kvm_cpu_cfg_set(RISCVCPU *cpu, KVMCPUConfig *multi_ext, static void kvm_cpu_cfg_set(RISCVCPU *cpu, KVMCPUConfig *multi_ext,
uint32_t val) uint32_t val)
{ {
int cpu_cfg_offset = multi_ext->offset; bool *ext_enabled = kvmconfig_get_cfg_addr(cpu, multi_ext);
bool *ext_enabled = (void *)&cpu->cfg + cpu_cfg_offset;
*ext_enabled = val; *ext_enabled = val;
} }
@ -227,8 +231,7 @@ static void kvm_cpu_cfg_set(RISCVCPU *cpu, KVMCPUConfig *multi_ext,
static uint32_t kvm_cpu_cfg_get(RISCVCPU *cpu, static uint32_t kvm_cpu_cfg_get(RISCVCPU *cpu,
KVMCPUConfig *multi_ext) KVMCPUConfig *multi_ext)
{ {
int cpu_cfg_offset = multi_ext->offset; bool *ext_enabled = kvmconfig_get_cfg_addr(cpu, multi_ext);
bool *ext_enabled = (void *)&cpu->cfg + cpu_cfg_offset;
return *ext_enabled; return *ext_enabled;
} }