Skip the 64-bit-only MSRs on 32-bit to avoid triple faults due to #GPs on the MSR access. Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> --- x86/msr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/x86/msr.c b/x86/msr.c index ffc24b1..beb321f 100644 --- a/x86/msr.c +++ b/x86/msr.c @@ -48,7 +48,6 @@ struct msr_info msr_info[] = { .index = 0xc0000080, .name = "MSR_EFER", .val_pairs = {{ .valid = 1, .value = 0xD00, .expected = 0xD00}} }, -#endif { .index = 0xc0000082, .name = "MSR_LSTAR", .val_pairs = {{ .valid = 1, .value = addr_64, .expected = addr_64}} }, @@ -58,6 +57,7 @@ struct msr_info msr_info[] = { .index = 0xc0000084, .name = "MSR_SYSCALL_MASK", .val_pairs = {{ .valid = 1, .value = 0xffffffff, .expected = 0xffffffff}} }, +#endif // MSR_IA32_DEBUGCTLMSR needs svm feature LBRV // MSR_VM_HSAVE_PA only AMD host -- 2.22.0