diff options
Diffstat (limited to 'arch/loongarch/kvm/vcpu.c')
| -rw-r--r-- | arch/loongarch/kvm/vcpu.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c index 36106922b5..3a8779065f 100644 --- a/arch/loongarch/kvm/vcpu.c +++ b/arch/loongarch/kvm/vcpu.c @@ -304,11 +304,18 @@ static int _kvm_get_cpucfg_mask(int id, u64 *v) return -EINVAL; switch (id) { - case 2: + case LOONGARCH_CPUCFG0: + *v = GENMASK(31, 0); + return 0; + case LOONGARCH_CPUCFG1: + /* CPUCFG1_MSGINT is not supported by KVM */ + *v = GENMASK(25, 0); + return 0; + case LOONGARCH_CPUCFG2: /* CPUCFG2 features unconditionally supported by KVM */ *v = CPUCFG2_FP | CPUCFG2_FPSP | CPUCFG2_FPDP | CPUCFG2_FPVERS | CPUCFG2_LLFTP | CPUCFG2_LLFTPREV | - CPUCFG2_LAM; + CPUCFG2_LSPW | CPUCFG2_LAM; /* * For the ISA extensions listed below, if one is supported * by the host, then it is also supported by KVM. @@ -319,13 +326,25 @@ static int _kvm_get_cpucfg_mask(int id, u64 *v) *v |= CPUCFG2_LASX; return 0; + case LOONGARCH_CPUCFG3: + *v = GENMASK(16, 0); + return 0; + case LOONGARCH_CPUCFG4: + case LOONGARCH_CPUCFG5: + *v = GENMASK(31, 0); + return 0; + case LOONGARCH_CPUCFG16: + *v = GENMASK(16, 0); + return 0; + case LOONGARCH_CPUCFG17 ... LOONGARCH_CPUCFG20: + *v = GENMASK(30, 0); + return 0; default: /* - * No restrictions on other valid CPUCFG IDs' values, but - * CPUCFG data is limited to 32 bits as the LoongArch ISA - * manual says (Volume 1, Section 2.2.10.5 "CPUCFG"). + * CPUCFG bits should be zero if reserved by HW or not + * supported by KVM. */ - *v = U32_MAX; + *v = 0; return 0; } } @@ -344,7 +363,7 @@ static int kvm_check_cpucfg(int id, u64 val) return -EINVAL; switch (id) { - case 2: + case LOONGARCH_CPUCFG2: if (!(val & CPUCFG2_LLFTP)) /* Guests must have a constant timer */ return -EINVAL; |