diff options
Diffstat (limited to 'target/i386/hvf/hvf.c')
| -rw-r--r-- | target/i386/hvf/hvf.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c index 346dbcc26f..79ba4ed93a 100644 --- a/target/i386/hvf/hvf.c +++ b/target/i386/hvf/hvf.c @@ -267,7 +267,14 @@ int hvf_arch_init_vcpu(CPUState *cpu) wvmcs(cpu->hvf->fd, VMCS_TPR_THRESHOLD, 0); x86cpu = X86_CPU(cpu); - x86cpu->env.xsave_buf = qemu_memalign(4096, 4096); + x86cpu->env.xsave_buf_len = 4096; + x86cpu->env.xsave_buf = qemu_memalign(4096, x86cpu->env.xsave_buf_len); + + /* + * The allocated storage must be large enough for all of the + * possible XSAVE state components. + */ + assert(hvf_get_supported_cpuid(0xd, 0, R_ECX) <= x86cpu->env.xsave_buf_len); hv_vcpu_enable_native_msr(cpu->hvf->fd, MSR_STAR, 1); hv_vcpu_enable_native_msr(cpu->hvf->fd, MSR_LSTAR, 1); |